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1 PRECAST WALL Hospital - Angers Architect : Agence G.P.A.A. fehrgroup.com

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Page 1: PRECAST WALL - FEHR Group...B Precast Wall C Thermal Precast Wall D Design Precast Wall E Integral Precast Wall F Technical requirements - Thermal Precast Wall 1. General points 2

1

PRECAST WALL

Hospital - Angers Architect : Agence G.P.A.A.

fehrgroup.com

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22 Precast Wall products

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A The Advantages of Precast Walls 1. Introduction

2. Construction advantages

3. Sustainable development

B Precast Wall

C Thermal Precast Wall

D Design Precast Wall

E Integral Precast Wall

F Technical requirements - Thermal Precast Wall 1. General points

2.Insulationandfiresafey

3. Control joint

4. Joints between walls

5.Load-bearinganchors(cylindricalandflat)

6.Joineryandraisededges

7.Liftingropesandreinforcements

8. Interim phase

9. Finishing/Installation

10. Transport

G Installation guide 1.Descriptionetareasofuse

2.Generalorganisationandpreparationoftheconstructionsite

3.DeliveryofthePrecastWall

4.InstallationofPrecastWall

5.Safetyfeatures

PRECAST WALL

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08

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44 Precast Wall products

Rhéna Clinic - Strasbourg

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The Advantages of Precast WallsPRECAST WALL

A

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66 Precast Wall products6

A - The Advantages of Precast Walls1. Introduction

Byoptingforaprojectbasedonprecastconcreteelements,youwillabletorelyonthesupportofourengineeringdesignofficetodefineanoverallsolution:theconcretewall,theinsulation,thefinishofthefacing,theprecastslabs,etc.arealldealtwithatthesametimetoensurethesimplest possible management of the construction site afterwards.

Theflexibilityofourproductionfacilityissuchthatthereisnoneedforseriesproduction:everyelement is made to your measurements.Ourbespokeproductsalsotakeaccountofthespecificcharacteristicsofyourproject.Inaddition,youhavethebenefitofahigher quality des than you would have with cast-in-place concrete.

Theuseofprecastelementswillalsoenableyoutoshorten your construction time : thankstofastinstallationofcourse,butalsothereduction in the number of trades required on the site,makingitsmanagementbytheprimecontractorthatmucheasier.

Less arduous workinvolvedininstallationthanforconventionalformedconcrete,bettersafety,noemanationsofhazardoussubstancesduringinstallationandeasierorganisationoftheconstructionsiteareallfactorsthatcontributetohealthierworkingconditionsforthesiteworkers.

Theprecastfacadeisthereforetheidealsolution,suitablefor all construction site configurations (renovation,presenceofadjoiningbuildings,extensions,etc.)andforsitesinthemostconfinedspaces(urbanenvironments,spotsthataredifficulttoaccess).

short lead times easier management less arduous work suitable for all configurations new build and renovation

UsesCanbeusedforhousesandapartmentblocks,officebuildings,shops,schools,hospitals,sportsandpoolcomplexes,artscentres,silos,retainingwalls,waterproofstructures,deepbeams,etc.

Why choose a Precast Wall?Forfaster,safer,simplerconstruction

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Remember: Industry-standardqualityoftheprecastproducts–rigorouscontinuousqualitycontrolduringmanufacturing

Bespoke productsConsistentmechanicalperformancesDeliveriescompliantwiththespecificationsAdaptstothespecificsandconstraintsofanyconstructionsiteEasytoinstallSimplifiedorganisationandcoordinationofconstructionsitesFast,flexibleuseandshorterconstructiontimesImprovedsafetyonconstructionsitesAttractivewallfacings–Varietyofsurfacefinishes(colours,textures)Lowenvironmentalimpact–Reducednegativeimpactsoftheconstructionwork and nuisance to neighboursEasy-care,lowmaintenanceLongservicelife Fire and weather protection

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88 Precast Wall products

Exclusivelymadetomeasure,Precastwallsoffer:

Incorporation of recesses and openings for :electricalenclosures,ducting,etc. doors and windows

Optimisation of the work on the construction site takingaccountof

thearchitecturalcharacteristicsoftheproject (layoutspecifications)dimensioningspecifictothecapacityofthecraneused

A solution designed and adapted to the configuration ofyourconstructionjob:

newbuild,renovation,adjoiningbuilding,extension

A custom solution

2. Construction advantages

Precast walls make it easier to coordinate the work:

noneedtoworryabouttherotationofthetradesnosaturationofthecrane.

Madeinthefactoryanddelivered“semi-finished”totheconstructionsite,theyensureyoumeet the timingoftheconstruction job.

Just-in-timedeliveryusingself-unloadingtrailersmeansthereisnoriskofsaturatingthebuildingsiteandallowsyoutoregulate the logistics flows.

Optimisation of the construction

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Controlled costs No investment in formwork.nodepreciationofformwork no maintenance costs

UsingPrecastWallsenablesacontractortoovercomepeaksinactivityifthereismixeduse ofconventionalformedconcreteandPrecastWall

Precastenablesyouto:reducetheimmobilisationofconstructionsiteequipment savemoneyonoverheads

Adaptable to the tightest of spaces Urbanrenovationaccountsforalargepartofconstructionwork.Precastisidealforurban environments and places where access is difficult.

Just-in-timedeliveryavoidsblockingtheaccessestothesites: storageofequipmentislimitedtothesizeofacontainer(9.50m).

PrecastWallisperfectlysuitedto:renovationofbuildingsthebringingintolinewiththelateststandardsofliftshaftsandstairwellsnewconstructionontheedgeofasiteoradjoininganotherbuildingonly20cmofspaceisneededtoplaceaPrecastWall

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1010 Precast Wall products

Safe, ergonomic working Quick and easy to install,thePrecastWallrequiresnophysicaleffortorheavyhandling.

Only4handlingoperationsarenecessary: takingthewalloutofthecontainer,placingthewallandshoringit,infillingwithconcreteand treating the joints.

Nooiling(sonoinhalation)Nodirtywork

Automatic unloading of the containerOur self-unloading,lorriesallowforconsiderableflexibilityinsupplyingaconstructionsite,forexampledeliveryavoidingpeakhoursontheroadshelpingtoeasingthetrafficonmainroadsthedaybeforetheweekend.

This“advance”deliveryoftheproductsallowsdeferredinstallation:thebuildingcontractorresponsiblefortheshellwillnotneedtoimmobiliseitscraneforunloadingand can take the walls one at a time as and when needed.

APrecastWallcanbeinstalledby2-3 people(+acraneoperator).

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3. Sustainable development

Concrete: 100% safe and recyclable a locally produced material low carbon footprint long life and robustness

Concrete, a top-class 100% recyclable materialProducing concrete does not emit much CO2becausethematerialisproducedlocallyanditscomponentsareonlytransportedoververyshortdistancestotheplaceofproduction.Theconcretemix(cement,aggregate,sand,somewater)representsonaverage0.08kgofCO2/kgofconcrete.Tocompare,producing1kgofvealgeneratestheemissionof47kgofCO2(source:ADEME).

Eco-construction – Eco-management – Comfort & Health

Concreteisparticularlyresistant to aggressionsandstressesofallkinds,suchaspollution,corrosion,frostandsoon.Inmanycircumstances,becauseitissoreliable,itistheonlymaterialthatcanbeused.Concrete requires little maintenance, does not favour the development of fungi, has nothing to fear from termites or any other insects and needs no aggressive treatments that are harmful to the environment.

Furthermore,ifweconsidertheentirelifecycleofabuilding(fromtheproductionofthematerialsthroughtothedemolitionofthebuildingattheendofitslife),wefindthat concrete buildings resist better and last longer andaretherefore more economical in terms of energy consumption than those built with other materials.t

School accommodation bloc - BeauneArchitect: X’TO ArchitectesPhoto: Jérôme Beg

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1212 Precast Wall products

TheElithisTower:thefirstpositiveenergyresidentialtowerblockintheworldArch. Agence X-TUBlackSwansflats-Strasbourg-Arch.AnneDémiansPhotographer: LN Photos

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Precast WallPRECAST WALL

B

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1414 Precast Wall products

B - Precast Wall The integrated formwork wall

UsesCanbeusedforhousesandapartmentblocks,officebuildings,shops,schools,hospitals,sportsandpoolcomplexes,artscentres,silos,retainingwalls,waterproofstructures,deepbeams,etc.

TECHNICAL DATA (IN LINE WITH THE CURRENT TECHNICAL NOTICE)

Max.dimensions up to 12.34m x 3.80m*

Wallthickness from 16 to 50 cm

Thicknessofskins from 4.5 to 7.5 cm

Concrete class min. C 40/50

Average weight from 280 to 350 kg/m2

Concreteexposureclasses XF1; XA3

* depending on production site; please contact us formoreinformation

Precast concrete skins

Stiffener

Insituconcreteinfill

ThePrecastWallisanintegratedformworkwallconsistingoftwothinreinforcedconcreteskinstiedtogetherandheldapartbymetalstiffenersandacentralvoidforinsitufillingwithready-mixconcrete.

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1616 Precast Wall products

Some references

AgnèsVardasecondaryschool-LignéArch.Caudron de Coquereaumont / Lebreton

LurcyLéviscommunityhallLMN ArchitectesMixy-Paris

X-TU Architects

UniversityHospital-AngersArch.:G.P.A.A.agency

BurgundySchoolofBusinessDijon

ChaperonVertflats-GentillyAEC Architecture

CollinedeVervilleprimaryschool-MennecyCité Architecture

LesDeuxRivesmedicalcentre-StrasbourgRey-LucquetArchitecte

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Airbase-BricyArch. Souchier Boullet

Cinema - MoulinsArch. F. Namur

Maupassantflats-DijonAMD Architectes

La Marseillaise tower block - MarseilleArch. Jean Nouvel

Sportshallandartscentre-TrelazéArch. B. Chinours

Odéon tower - MonacoArch. A. Giraldi

STEP VeneuxlesSablons

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1818 Precast Wall products

Lazardbuilding-LimonestArchitect: AS Architecture-StudioPhotographer:LucBoegly

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Thermal Precast WallPRECAST WALL

C

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2020 Precast Wall products

C - Thermal Precast WallThe wall with integrated formwork and integrated insulation

sustainable, bespoke solution protected insulation air and watertight suitable for use in earthquake zones

infrastructure uses no restrictions on building height

TECHNICAL DATA (IN LINE WITH THE CURRENT TECHNICAL NOTICE)

Max.dimensions up to 12.34 m x 3.80 m*

Wallthickness from 28 to 50 cm*

Thicknessofskins inner 6 to 7.5 cm / outer 6 to 9 cm

Insulation from 6 cm to 20 cm:polyurethanepolystyrene

Weight approx. 350 kg/m2

Uwall from 0.504 to 350 W/m2.K

* depending on production site; please contact us formoreinformation

Precast concrete skins

Insulation

Insituconcreteinfill

Frame

Stainlesssteelcylindricalsleeveanchorholding the outer skin in place

Structural part

Connector madeoffibreglass,guaranteeingthe

thicknessofthewall,butalsotakinguptheloadsoftheconcreteinfillpouredinsitu,thethermalexpansionandthepressure/

negative pressure due to the wind.

InteriorExterior

UsesCanbeusedforhousesandapartmentblocks,officebuildings,shops,schools,hospitals,sportsandartscentres,industrialbuildings,category2undergroundbasements,etc.

TheThermalPrecastWallisanintegratedformworkwallconsistingoftwothinreinforcedconcreteskinstiedtogetherandheldapartbyasystemofconnectors(compositeconnectorsandload-bearinganchors),withalayerofinsulationontheouterskinprovidingexternalthermalinsulationandacentralvoidforinsitufillingwithready-mixconcrete.

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2222 Precast Wall products

Thermal performances, fire protectionThermalPrecastWallisawallwithintegratedformworkandintegratedinsulation.Itisthereforeabearingwall,precast,workingontheprincipleofexternal insulation.

ThethermalperformanceoftheThermalPrecastWalldependsonthenatureandthicknessoftheinsulation integrated in the wall. Using polyurethane (PU) or expanded polystyrene (ESP) allow an Uwall varying between 0.504 and 0.13 W/m2.K to be achieved.

Connections(floors,divisionwalls,parapetwalls)constitutesingularpointsinaconstructionthatgenerateheatlossLocatingtheinsulationagainsttheouterskinofthewallofferstheadvantagesofexternalinsulationasiteliminates thermal bridges.

ThermalPrecastWallcanbemade,byaspecialprocessinthefactory,tobefire resistant up to 2 hours.Attheopeningsandhorizontaljoins,Fehrsystematicallyplacesastripofrockwoolinsteadofthepolystyreneorpolyurethane,withaviewtomeetingtherequirementsoffireregulationIT249:fireprotectionofinsulation.

up to Uwall 0.13 W/m2.K with a view to meeting the future RT2020 and passive building standards

thermal comfort winter/summer energy savings acoustic comfort fire and weather protection

Technical performances :Madetomeasure,eachpanelcanbeequippedinthefactorywithjoineryorelectricalfittings,therebyoptimisingcostsandtimingsaswellasguaranteeingconstructionsafety.

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The Thermal Precast Wall provides comfort in summer. High inertia,due to themassofconcrete, isanadvantage, since thewallaccumulatesheatinthedaytimeandreleasesitatnight.

Thequalitiesof acoustic comfort areprovidedby theconcreteand the insulation. For the same wall thickness, the ThermalPrecastWallwillinsulatemuchbetterthanamasonryortimberormetal-framedwall.

The Precast® Thermique wall gives a building a comfortable atmosphere, with no cold wall effect, whilst eliminating thephenomenaofsuperficialcondensationorinternalcondensationliable to lead to numerous structural issues.

Abuildingdesigned,positionedandorientedtocaptureasmuchheataspossiblefromthesun,goodsealingofthebuildingshell,efficientcounterflowheatrecoveryventilationplusThermalPrecastWallwillguaranteeunequalledairqualityandcomfortinsidethebuildingaswellasmeetingfuturepassive building requirements.

Comfort building occupants

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2424 Precast Wall products

Some references

Children’scentre-BourgLesValenceRueRoyaleArchitectes

Special school - BeauneX-TO ArchitectesPhoto: Jérôme Beg

Lazardoffices-LimonestArchitect: AS Architecture-StudioPhotographer:LucBoegly

Lucilineflats-RouenArch. Bureau 112

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Flats-FontenaysousboisBaudouin Bergeron Architectes

Lidl stores

Fultonflats-ParisA.DaSilva-Graphix-ImagesB.Bülher,BrénacandGonzalezArchitectes

Sportscentre-EntzheimAuger-Rombeaud Architectes

AgnèsVardasecondaryschool-LignéDe Coquereaumont - Lebreton Architectes

Training centre - PlérinArch. Dunet et associés

Hidalgo crèche - ParisArch.P.Quintard-Hofstein

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2626 Precast Wall products

L’IndustrieMagnifiqueScreen-printed concrete

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Design Precast WallPRECAST WALL

D

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2828 Precast Wall products

D - Design Precast WallThe 100% aesthetic integrated formwork wall

A made-to-measure industrial product providing a higherqualityoffinishontheupperfacingthanthatofvisibleconcrete.

Thestandardfacingissmoothgreyconcreteforboththe inner and the outer skin.

Theouterskincanbegivenanapplicationofpaint,amineralrendering,athickplasticcoating,amortarrendering (as long as the joints between the panels aremarked).

It is possible to produce coloured concrete façades, false joints, negative reliefs, lettering and pattern imprints (we can also offer imprints made to order for your job).

Theouterskincanalsoserveasasubstrateforcladding or a stone veneer*.

unfinished imprinted coloured screen-printed lasure-coated

* subject to conditions stipulated in the current Technical Notice.

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Fultonflats-ParisB.Bülher,BrénacandGonzalezArchitectesA.DaSilva-Graphix-Images

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3030 Precast Wall products

Some references

Housing Paris

Imagerie des ClairionsAuxerre

Noise barrierNanterre

Archives - BrumathArch.SchweitzeretAssociés

Swimmingpool-BrequignyArch. Berthomieu

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Airport-EntzheimArch. Serge Brunet

RosaParksschool-IvryArch. Daquin et Ferrière

Chauvet CaveArch. Fabre Speller - Atelier 3A

Anthracite concrete

IPSEN - Isle / Sorgue AFA Architectes

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3232 Precast Wall products

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Integral Precast WallPRECAST WALL

E

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3434 Precast Wall products

E - Integral Precast Wall The 100% safe integrated formwork wall

2

10

7

8

3

4

6

5

Technologie,

Sécurité, Productivité,

Environnement

TROPHÉE CRAMIF

2013

brevetFEHRTechnologies

Winner of the Vinci France Innovation Prize

1

9

The Integral Precast Wall product, with its 10 patented solutions, facilitates erection and improves safety while optimising productivity, gaining 44% on the construction site.

TheIntegralPrecastWallcomeswithopeningsprecastinthefactoryandsparesyouallthedisadvantagesofwoodenformworkthatyouwouldhavetoremoveonsite: nostrenuouseffort,riskoffalling,disposalcostsorrecycling.

Theintegratedsteeltie-barsmaketheworklessarduous,asthereisnolongeranyliftingofheavybasketsofreinforcements.

Thedoorthresholdintegratedinthefactoryisarealtime-saver,asitsparesyoutheneedtocutstrengtheningonsite.

1 – Integrated formwork2 – Integrated steel tie-bars3 – Integrated door threshold 4 – Integrated guard rail5 – Safety slings6 – Fastening plate for guard rail7 – Fehr guard rail8 – Secure container9 – Automatic stabilising legs, front – Automatic stabilising legs, rear

12345678910

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Integrated steel tie-bars 21 32

Integrated safety slings to facilitate handling from the ground5

Fastening plate and guard 76 Secure container98

Opening precast in the factory

aucun déchet

aucun coût de recylcage

aucune pénibilité

aucun risque de chute

1

Guard rail and door threshold integrated in the factory

43

10

no risk of falling

no strenuous effort required

no waste

no recycling costs

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3636 Precast Wall products

BurgundySchoolofBusiness-Dijon Architecte : Hervé Régnault

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Technical requirements Thermal Precast Wall

PRECAST WALLF

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3838 Precast Wall products

F - Technical requirements Thermal Precast Wall

Canbeusedforhousesandapartmentblocks,officebuildings,shops,schools,hospitals,sportsandartscentres,industrialbuildings,category2undergroundbasements,etc.

Forundergroundwallsitisnecessarytoprovideadrainandadrainagecomplex(suchasDeltaMS).Thebottomjointmustremainopen(untreated)sothatanywaterthathasaccidentallyentered the shell can get out.Ifthewallispartiallyunderground,itwillbenecessarytoprovideacontroljoint*betweentheunderground part and the above-ground part (*dependingonthestresses,pleasecontactusformoreinformation)

Wallwithintegratedformworkandintegratedinsulation can be bearing walls as long as there isastructuralpartofatleast16cm.

MaximumthicknessundertheTechnicalNotice : 50 cm (depending on production site-pleasecontactusformoreinformation.The dimensions given in the technical notice arethedimensionsinthetables,butnotthemaximumdimensionsthatcanbeproducedonan industrial line.

CompositionofaThermalPrecastWall:–Aprecastinnershell6to7.5cmthickwithalayerofreinforcingbarsandstiffenersspacedamaximumof60cmapartensuringthemonolithicstructurewiththeinfillconcretecore poured in situ.–Aspacefortheinfillcoretobepouredinsitu:min.8cm(non-bearingwall)ormin.10cm(bearingwall)–Insulation6to20cmthick–Aprecastoutershell6to9cmthickwithalayerofreinforcingbars(ST25C).

Canbeusedforbuildingsneartheseaorexposedtoseaorsaltsprayinaccordance withexposureclassXS1(7cmouterskin, 3cmconcretecover+PM-EScement).UseinbuildingsneartheseaorexposuretoseaorsaltsprayinclassesXS2andXS3andinbuildingsexposedtoveryaggressiveatmospheresisnotcoveredbytheTechnicalNoticeforThermalPrecastWall.

The Thermal Precast Wall is suitable for use in earthquake zones 1 to 4.

1. General points

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Aucun risque de corrosion ou d’attaque

X0Oui

XC1 XC2 XC3 XC4Oui Oui Oui Oui

Corrosion induite par carbonisation

Corrosion induite par les chlorures - Eau de mer

XS1 XS2 XS3Oui Non Non

Corrosion induite par les chloruresChlorures autre que l’eau de mer

XD1 XD2 XD3Oui Non Non

Attaque gel/dégel

XF1 XF2 XF3 XF4Oui Oui Oui Oui

Environnement Chimique agressifs

XA1 XA2 XA3Non Non Non

Theconcreteoftheprecastskinscanbesand-blasted*,polished*ordeactivated,althoughtheskinconcernedbythetreatmentwillneedtobethicker.*accordingtofeasibility,pleasecontactusformoreinformation.

The materials used to make and install Thermal Precast Wall are :

the concrete of the precast shells the infill concrete, poured on the construction site the polystyrene, polyurethane or rockwool insulation (used only to meet IT 249 : fire protection of insulation)

Expo

sure

cla

sses

Aggressive chemical environment

No risk of corrosion or attack

Yes Yes Yes Yes

Yes No No

Yes Yes Yes Yes

Yes

Yes No No

No No No

Corrosion induced by carbonation

Corrosion induced by chlorides from sea water

Corrosion induced by chlorides other than from sea water

Freeze/thaw attack

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As the insulated outer skin is not a bearing wall, heavy loads must be fixed to the structural part.Cladding and adhesively bonded coatings are acceptable subject to conditions : surface loads of less than 0.50 kN/m² are permissible, and the fastening of the cladding must not interfere with the free dilation of the insulated skin (must respect the joints between Thermal Precast Wall).

The acoustic performance taken into account for the Thermal Precast Wall is D < or = 30 dB.

Stipulated in the current Technical Notice and validated by the CSTB, the acoustic performance of the Thermal Precast Wall is at least equivalent to that of an cast-in place wall, without taking into account the insulation used.

The walls are limited to 2-hour fire resistance (from the structural part towards the insulated skin).

For the wall dimensions, when we are dealing with a case of an isolated wall such as a column or the corner of a building, a minimum width is defined by the use of a cylindrical sleeve anchor, but also by production issues relating to turning walls and removing them from formwork. A minimum width of 80 cm is required. For smaller dimensions, a special study will be necessary.

When there is one or more openings in the walls the widths of the piers must be at least 30 cm, with at least 1 width or height element that can integrate a load-bearing anchor.

max

.

min. Door or French windows

Window or

pocket

SECTION B-B

SECTION A-A

max.

min.

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41

It is possible to integrate columns with a structural part that is larger in a certain place (reduces the thickness of the insulation)

Depending on how the walls are cut out, it is sometimes necessary to cut the reinforcing bars of columns or lintels. These reinforcing bars will therefore need to be spliced in the part poured in situ (need to provide splicing hatches), under certain conditions.

Creation at the butt end of the wall

Creation in the wall

If necessary reduce the thickness of the insulation at the place where the column is to be integrated

Reinforcing bar of reinforced concrete column integrated in a Precast Wall

If necessary, reduce the thickness of the insulation at the place where the column is to be integrated

Reinforcing bar of reinforced concrete column integrated in a Precast Walll

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4242 Precast Wall products

Example of treatment of a thermal bridge on a parapet wall

Coping stone or waterproofing

Insulation to be added in situ

Seals

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43

Reminder :U: heat transfer coefficient (W/m².K)R: Thermal resistance (m².K/W)λ (lambda): thermal conductivity of insulation (W/m.K)ψ (psi): point heat transfer coefficient (W/m.K)

The insulation materials used by FEHR have an ACERMI classification guaranteeing their thermal performances:

The design of panels using only rockwool is not covered by the Technical Notice.

In the standard sections, the insulation is protected by the thickness of the concrete of the inner shell. The outer skin conventionally has a M0 fire classification.

10 cm strips of rockwool are placed in the factory around the edge of the openings to prevent the spread of fire from one floor to the other. This strip of rockwool is increased to 20 cm when it is at the wall’s edge.

In order to cut off any chimney effect in the space dedicated to the insulation between two levels of a building, a fire break must be provided in accordance with IT 249. This can be done by inserting a strip of a material such as high-density rockwool every two levels (every level for buildings subject to the application of “C+D”).

2. Insulation and fire safety The materials used to make and install Thermal Precast Wall are :

the concrete of the precast shells the infill concrete, poured on the construction site the polystyrene, polyurethane or rockwool insulation (used only to meet IT 249 : fire protection of insulation)

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4444 Precast Wall products

POLYURETHANELambda = 0.022Thickness(cm)

67891011121314151617181920

0.3580.3250.2850.2600.2340.2170.2000.1880.1760.1610.1540.1470.1390.1340.131

2.7903.0743.5073.8514.2764.6104.9935.1905.6736.2146.5036.8227.1717.4787.613

Uwall(W/m2.K)

Rwall(m2.K/W)

EXPANDED POLYSTYRENE ALambda = 0.030Thickness(cm)

67891011121314151617181920

0.4720.4210.3750.3390.3100.2850.2620.2470.2320.2130.2030.1920.1830.1760.168

2.1192.3752.6672.9533.2243.5043.8134.0494.3194.6984.9335.2045.4725.6985.958

Uwall(W/m2.K)

Rwall(m2.K/W)

EXPANDED POLYSTYRENE BLambda = 0.032Thickness(cm)

6789

1011121314151617181920

0.5030.4450.3930.3580.3270.3030.2770.2600.2450.2260.2130.2030.1940.1850.177

1.9902.2482.5432.7903.0613.3053.6143.8524.0874.4194.6984.9335.1665.3965.660

Uwall(W/m2.K)

Rwall(m2.K/W)

Example of a calculation of the Uwall value - Thermal coefficient of the Precast Wall

Assumptions:Without any openings, 12 m²4 connectors per m²1 Cylindrical sleeve anchor per wall Outer skin 6 cm thick Inner skin 6 cm thick In situ concrete infill 11 cm

EXTERIOR INTERIOR

HEAT

Inner concrete skinInsulation In situ

concrete infill

Outer concrete skin

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The positioning of a control joint on a wall is determined by a combination of the insulation thickness and the COMBAR connectors, or the fact that the wall is partially underground

The connectors are dimensioned to take up :

1 - The tensile stresses due to the pouring of the infill concrete (speed of concreting according to the installation guide). 2 - The pressure and negative pressure due to the wind3 - The shearing stresses generated by the differential thermal expansion between the 2 precast shells.

This 3rd stress implies a maximum distance between the dilation centre (generally the same as centre of the cylindrical anchor) and the most distant connector.

Case 2: Insulation < 100 mm

Case 1 : Insulation between 100 mm and 200 mm

𝑙 = 2.40 m for insulation between 60 and 100 mm thick inclusive (< 100 mm).

Example of dimensions with insulation <100mm :

𝑙 = 7.40 m for insulation between 100 and 200 mm thick inclusive.There is no requirement for a control joint in this case with our production dimensions.

Length/height of wallHeight/length of wall

1.00m 5.05m4.95m4.79m4.57m

4.09m

4.40m

3.88m

4.27m

3.74m

1.50m2.00m2.50m

3.25m

2.80m

3.50m

3.00m

3.65m

3. Control joint

Cylindricalsleeveanchor

Axisofcentreofgravityoftheoutershellofthewall

Axisofcentreofgravityoftheoutershellofthewall

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4646 Precast Wall products

Load-bearing anchor

Load-bearing anchor

open joint

Seal as provided for by paragraph 6.21

INTERIOR EXTERIOR

Porous backfill

Drainage complex

Drain

Ifthewallispartiallyunderground,itwillbenecessarytoprovideacontroljoint*between the underground part and the above-ground part.

Conditions : The underground part must be at least 70 cm deepThewall’scentreofgravitymustbeaboveground

ThewidthofthejointsbetweenThermalPrecastWallisdeterminedby:

Themanufacturingtoleranceofthepanels(cf.Table§4.4intheTechnicalNotice)Theinstallationtolerance,definedas5mmThethermalexpansionoftheconcreteThedisplacementoftheouterpanelifsubjectedtoanearthquakeload(avoidtherisksofpanelsknockingintoeachother,counter-phasevibration)

Basically,thewidthofthejointsbetweenThermalPrecastWallis2cm.

TheconnectionbetweenThermalPrecastWallmustbecheckedforshearing.ForaskinreinforcementgreaterthanST25Cinanearthquakezone(alsocorrespondstothesectionoftheIntegratedSteelTie-bars),wewillbeobligedtoleaveopeningsintheskinsofatleast20cm.

4 straight bars to be inserted in situ Splice bars to inserted in situ

Box opening in situ

4. Joints between walls

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47

Acylindricalanchortakestheweightofitsinsulatedskinalone.Thecylindricalsleeveanchorisnormallyplacedintheverticalpanelatthecentreofgravityoftheprecastshellontheinsulationside.

Inearthquakezonesthenumberofcylindricalanchorsusedmaybehigherduetolowerresistancetoshearing(Art.2.5oftheTechnicalNotice).

LAYOUT elevation

Connector

axis of centre of gravity of the outer shell of the wall

main anchor

Connector

Extra

anc

hor

axis of centre of gravity of the outer shell of the wall

Main anchor

15 15

15 15

<50

<50

from

10 to

30

from 10 to 30

30 30<50 <50

5. Load-bearing anchors (cylindrical and flat)

Cylindrical sleeve anchor

Connector

Load-bearing part

Extra bars if fire exposure

Close-up of the load-bearing anchors and connectors: position of the cylindrical anchor in cross section

For firewalls, the insulation must be at least 80 mm thick.

For a wall exposed to fire, extra anchor bars will be provided in the precast skins, HA6 bars that through the thickness of the core of the cylindrical load-bearing anchor.

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4848 Precast Wall products

A Thermal Precast Wall may include several cylindrical sleeve anchors. They are generally placed at the centre of gravity of the insulated skin and will be at least 75 cm apart.

HALFENMVAflatanchorscanbeusedasthemainanchorsundercertainconditions:

6 cm outer skin when the insulation is less than 12 cm thick.

Outer skin must be 8 cm when the insulation is between 12 and 15 cm thick inclusive.

Outer skin must be 8.5 cm when the insulation is more than 15 cm thick.

main cylindrical sleeve anchor

main cylindrical sleeve anchor

Extra cylinder

Extra cylinder

CoG

CoG

1.5d

1.5d

1.5d

1.5d

Axis of opening

Extra anchor (flat) Extra anchor (flat)

CoG

> 3l > 3l

> 3l

> 3l

> 3l > 3l> 3l > 3l

yx

> 3l

> 3l

dmax = 6.00 m

Axis of centre of gravity of the outer shell of the vertical supporting structure

NB: * = flat anchor intended to take up earthquake loads

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The way joinery is dealt with on Thermal Precast Wall is very important. In all cases, it is prohibited to fix joinery onto the insulated outer skin. Joinery must systematically be fixed onto the structural part of the shell. Recesses are possible for roller shutter boxes or Venetian blinds.

Examples of treatments of openingsDifferenttreatments(lintels,jambliningsandthresholds/breastwalls)

6. Joinery and raised edges

ARockwool insulation

Waterproof membrane

Open jointJoinery

Screws+plugs to fix waterproof membrane

Seals

Roller shutter box fixed onto the load-bearing core

B

Rockwool insulation

Waterproof membrane

Joinery

Screws+plugs to fix waterproof membrane

Seals

Roller shutter box fixed onto the load-bearing core

C

Rockwool insulation

Open joint

Screws+plugs

Fastening lugJoinery

SealsFlashing

D

Rockwool insulation

Fastening lug plugged into the concrete

Interior trim

Seals

ERockwool insulation

Fastening lug plugged into the concrete

Seals

Interior trim

F

Rockwool insulation

Fastening lug plugged into the concrete

Interior trimSeals

GRockwool insulation

Interior claddingSeals

H

Rockwool insulation

Jamb lining trim

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5050 Precast Wall products

Examples of installation with Venetian blinds

SECTION SHOWING RECESSING OF VENETIAN

BLINDS INTO PRECAST WALL Polyurethane

Rockwool

A- Polystyrene to removed on construction site after concreting for Venetian blinds or roller shutters

1

SECTION SHOWING RECESSING OF VENETIAN

BLINDS INTO PRECAST WALL

Rockwool

Insulation to be added on construction site

Shutter piece to be added on site

Wooden trim

Ht = 30 cm + insulation added on site

2

Rockwool insulation

Insulation + jamb lining trim

Rockwool insulation Interior cladding

Fastening lug plugged into the concrete

J

L

Rockwool insulation

Rockwool insulation

Rockwool insulation to be added on site

Jamb lining trim

Width to be determined

Integrated wall tie

I

K

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51

Opposite is an example of a raised edge possible on a wall to be turned (restriction: lifting ropes will have to cut and the raised edge treated on the construction site)

Possibility of casting raised edges (integrated formwork) on Thermal Precast Wall in the configurations shown below.

* (For Double Raised Edges, count the amount of the option twice)All the raised edges here are only available on walls that are NOT to be turned

A few examples of raised edges

z = wall thickness – 9 cm z = wall thickness – 9 cmx = to be determinedy = 6 cm + th. of insulationx+y = 50 cm maximum

z = wall thickness – 9 cmy = 6 cm + th. of insulation

x = to be determined (50 cm max.)y = 6 cm + th. of insulation

z = wall thickness – 9 cm

*

a = to be determineda = to be determineda = to be determined (50 cm max.)

*

y = 6 cm + th. of insulation

x = to be determined (50 cm max.)y = 6 cm + th. of insulation

*

a = to be determinedb = to be determined

*

a= 20 cm max.y = 6 cm + th. of insulation

*

a = to be determinedy = 6 cm + th. of insulation

z = wall thickness – 9 cma= 20 cm min.

Rockwool

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5252 Precast Wall products

ThermalPrecastWallarehandledandliftedusingsteelwireropeswithadiameterof9mmor12mm.Theseropesareintegratedintheprecastreinforcedconcreteshellswhentheyarepoured.Atleast4wireropesareprovidedforeachThermalPrecastWall,i.e.2oneachskin,positionedoppositeeachother.

The panels are handled with tower or mobile cranes. The wire ropes are attached to the crane hook from the ground. On no account must the angle α of the slings be greater than 60°.

For walls < 8.5 tonnes to be lifted straight and turned, use 4 wire ropes diam 9 mm. (SWL 1: 26.2 kN; SWL 3: 19.5 kN)For walls > or = 8.5 tonnes to be lifted straight and turned, use 4 wire ropes diam 12 mm. (SWL 1: 33.2 kN; SWL 3: 19.8 kN)

For 12 mm wire ropes, a reinforcing bar of ST25C minimum is obligatory on the inner skin.

Reminder: The FEHR system of lifting ropes is compliant on walls up to 50 cm thick.

7. Lifting ropes and reinforcements

Fixedleg

notches in the insulation allowing themovementofthehandlingslings.TobefilledinwithPUfoamonce the panel is in position.

Head ring

Sling with adjustable leg

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Inordertoreducestrenuousworkontheconstructionsiteasmuchaspossible,weofferourcustomers,fortheThermalPrecastWall,asalreadyforthePrecastWall,thepossibilityofremovingtheconcretethresholdstoberecutonsite,subjecttocertainconditions…

WhentheopeninginaThermalPrecastWallallowstheliftingropestobe placed on either side oftheopening,whenthis opening is 1.40 m maximumandthelintelisatleast20cmhigh,wecan remove the concrete thresholds.The minimum width betweentheedgeofthewall and the opening in this case must be 50 cm.

Whentheliftingropesarenotoneithersideoftheopening,andasmallpierisnecessaryattheedgeofthe wall the threshold to be cutremainsnecessaryforthe moment.

Concrete joint sealer placed in the factorytoavoidthethresholdbeingfilledandthereforefacilitatecuttingontheconstructionsite(onlythe2skinstobecut)

1

2

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5454 Precast Wall products

Forveryhighwalls(tobeturned)whentheopeningisattheedgeofthewall,thereisnopier or threshold to be cut.

Whentheopeningiscentredonaveryhighwall,itremainsnecessarytohaveanelementtobecutfortheliftingrope.

Concrete joint sealer placed in the factorytoavoidthereinforcementbeingfilledandthereforefacilitatecutting on the construction site (onlythe2skinstobecut)

3

4

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WheninstallingThermalPrecastWalloneabovetheother,itisnecessarytoplaceashimontheouterskin.

Itisnecessarytomakesuretheouterskinisheldbyanotherdeviceoncetheslingsareremovedfromthewall,incasethetiesareinsufficient.Wherenecessary,theouterskinmustrestonastrongsupportusingshimsthatarerigidenoughtoresist compression

Theshimmingwillbedoneeitheronastrongsupport(provisionalorastructuralelement)orontheouterskinofthePrecastWallbelow,whichisitselfrestingonastrongsupport,withshims.

Theseshimsmaybewedge-shaped,withaheightcorrespondingtothe jointdimensioned. Itwillalso be possible to use shims that are not wedge-shaped with a height corresponding to the joint dimensionedminusthemanufacturingandinstallationtolerances,couplewithanexpandingseal.

TheshimscanberemovedoncethecoreinfillconcreteinthetopPrecastwallhasset.Theshimsmustremovedstartingwiththehighesthorizontaljointsandworkingdowntothelowest.

BelowaretherecommendationsfortreatingthejointsgivenintheTechnicalNotice.Forahouseinalightcolourwithpanelslessthan5.00mlong,thesealantcanbereplacedwithtypei4façaderendering.

Elastic sealants, class SNJF 25 E

Façade wall with paint, lasure, untreated or marked joints

STAN

DARD

SUP

ERST

RUCT

URE

WAL

L SE

CTIO

N

Seal

SealFlexible sealant such as KATAROC PREDALLES

Insulation

Steel ties

Expanding backer rod

Expanding seal

Category 1 sealant, such as SIKAFLEX CONSTRUCTION

Expanding backer rod

Void or space filled with insulating foam or a compressible insulating joint strip

Inner surface

Outer surface

Inner surface

Single-component mortar such as SIKA MONOTOP 612

Self-adhesive waterproofing strip such as SIKA Multiseal

Expanding backer rod

Void or space filled with insulating foam or a compressible insulating joint strip

Insulation

Steel ties

Expanding backer rod

Flexible sealant such as KATAROC PREDALLES

Expanding seal

STAN

DARD

INFR

ASTR

UCTU

RE W

ALL

SECT

ION

8. Interim phase

9. Finishing/Installation

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5656 Precast Wall products

Concreteinfill:Themaximumfree-falldistanceHmaxoftheconcretemustnotexceed3m,howeverthickthecoreinfill(withreferencetoArt.1.3“Pouringfrombuckets”ofstandardNFP18-504“Structuralconcreteworkmanship”).Useofconcretechutes

Without carrying out any special studies, concreting rates will be limited to the following values, whatever the spacing of the wall connectors:

Temperature of concrete ≥ 15°C: 70 cm/hTemperature of concrete ≥ 10°C: 60 cm/hTemperature of concrete ≥ 5°C: 50 cm/h

Height of concrete chute :

For heights > 3.00 m the infill must be done :

1 Byintroducingaflexibletube(where the space between thetwoskinsallowsit)

2 Through one or more openings whilst respecting thesamefree-falldistance.

–Thicknessofcoreinfilltobepouredinsitu< or = 9 cm : BPS - NF EN 206/CN - XF1 C25/30* - Dmax 12.5

Recommended consistency target value 200 mm to 220 mm

–Thicknessofcoreinfilltobepouredinsitu> 9 cm : BPS - NF EN 206/CN - XF1 C25/30* - Dmax 16

Recommended consistency target value 200 mm to 220 mm

What type of concrete to order?

Remark:TheinfillconcretemustmeettherequirementsofstandardNFEN206/CNandthespecificationsoftheprojectinquestion.*Thestrengthclassisthatrequiredbythestructuraldesignoffice

and will be at least equivalent to C25/30.

Flexibletube

Concreting opening

3.80mmax.

3.80mmax.

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57

Veryhighinfill:

Anexemptionfromtherecommendedconcretingrateof70cm/hispossible,whenfillingaThermalPrecastWallinonepass,uptoaheightof2.30m, aslongasthefollowingmeasuresaretaken:

AspecificstudybyFEHR’sengineeringdesignofficetovalidatetheincreasingoftheinfillheightuptoamaximumvalueof2.30m,byputtinginextraCOMBARconnectorstotakeupthepressurefromthefreshconcrete intheThermalPrecastWall.

Thewallsonwhichsuchfillinghasbeenauthorisedwillbespeciallymarked.Alabelwillbeplacedonthewallspecifyingthatthemaximumfree-falldistanceHmax=2.30mispossibleontheThermalPrecastWallconcerned.

Forthesamephase,allthewallsmustbefilledinonepass,orbefilledattheraterecommendedinthegeneralcaseforwallswithintegratedinsulation. Itisnotpossibletohave2differentfillingratesonthesamephase.

The study will be carried out specifically for each concreting height required.

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5858 Precast Wall products

½ Rack no. 1½ Rack no. 2

Max. lgth. walls = 5.00 Max. lgth. walls = 6.00

Itispossibletoplacewallsontopofeachother

2nd rack1st rack5 6

5.95.85.75.65.5

5.15.25.35.45.5

Front rack= 2.70 m

Ht < 1/3 wall

Ht < 2/3 wallHt superposed = 3.00 m max.

2

1

10. Transport

Deliverywith2½containersshouldbeprioritised,therebymakingloadingofthelorriesmoreefficientandcosteffective.

(seetablebelowformax.dimensions)

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MaupassantflatsDijon

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6060 Precast Wall products

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Installation guidePRECAST WALL

G

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6262 Precast Wall products

FEHR safety reminders Safety ismanagedbythinkingandpreparingahead.Preparebystudyingtheplansandtheorganisationoftheconstructionsiteandrefertotheconventionalsafetydevicesproposedintheuserguide.Hardhat,safetyshoes,glovesandworkclothesareobligatoryontheconstructionsite.Theuserdeclaresthathe/sheisawareoftheseinstructionsandundertakestocomplywiththemwheninstallingPrecast Wall.

Measures to be taken in the event of the nonconformity of the Precast Wall : In the event of a nonconformity other than aesthetic or concerning thedimensionaltolerancesofthewall, thePrecast® wall should not be unpacked fromthecontainerornotinstalledifonlyfoundtobedefectiveafterunpacking.Inbothcases,theFEHRengineeringdesignofficemustbecontactedandwillhavesoleauthoritytodecidewhetherwallcanbeinstalledormustbescrapped.

User training :A customer using the Precast®walltechnologyforthefirsttimemustcontactustothattheycanbeassistedbyaFEHRexpertinthepreparationandinstallationofthefirstPrecastWall.Thismeasurecanalsobeofferedonacase-by-casebasisforany*¨PrecastWalluser.

?

Bibliography

INRS, OPPBTP, Assurance Maladie (health insurance). (August 2012). Murs à coffrage intégré MCI - Prescriptions minimals à l’Intégrité à la conception du procédé constructif MCI pour une mise en oeuvre en sécurité (Minimum instructions for safe use of walls with integrated formwork) Editions INRS ED 6118.

FIB, FFB, EGF BTP, OPPBTP, CIMBETON, CERIB. (January 2017) Guide des bonnes pratiques prémur. Editions CERIB.

Currently valid technical notices (Avis techniques) for Precast and Thermal Precast Wall.

Technical data sheets provided by the different manufacturers of the equipment needed for installation.

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63

Contents

1 Description & areas of use1.1PrecastWall1.2ThermalPrecastWall

2 Organisation and Preparation of the construction site2.1 Preparing the project: how to read the plans?2.2 Preparing the tools2.3Preparingtheconstructionsitebeforeerection2.4 Marking out the ground and adjusting the levels

3 Delivery of the Precast Wall 3.1Descriptionofthetransportandstorageequipment(container)3.2Delivery3.3 Storage3.4Returningemptycontainers

4 Installation of Precast Wall 4.1UnloadingPrecastWall4.2TurningroundVeryHighPrecastWall4.3InstallingPrecastWallwithintegratedsteeltie-bars4.4InstallingPrecastWallwithoutintegratedsteeltie-bars4.5SpecialcaseofinstallationofPrecast® Thermique4.6Methodofanchoringandtypeofshoring4.7Infillingwithconcrete4.8Treatmentofjoints 4.8.1PrecastWall4.8.2ThermalPrecastWall

5 Safety features5.1Sharedusebuilt-upscaffolding5.2GuardrailsintegratedintoPrecastWall5.3FEHRfasteningplate-mixedadapter-traditionalconstructionsiteguardrails5.4AMPworkplatform

p.64p.64p.65

p.66p.66p.71p.73p.74

p.75p.75p.76p.77p.78

p.80p.81p.82p.85p.87p.89p.90p.92p.92p.95p.99

p.101p.102p.103p.107p.108

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6464 Precast Wall products

Areas of useCanbeusedforhousesandapartmentblocks,officebuildings,industrialbuildings,shops,schools,hospitals,sportsandpoolcomplexes,artscentres,silos,retainingwalls,waterproofstructures,deepbeams,etc.

TECHNICAL DATA (IN LINE WITH THE CURRENT TECHNICAL NOTICE)

Max.dimensions up to 12.34 m x 3.80 m*

Wallthickness from 16 to 50 cm*

Thicknessofskins from 4.5 to 7.5 cm

Average weight from 280 to 350 kg/m2

Concrete strength class C40/50

Concreteexposureclass from XC1 to XA3

* dependingonproductionsite;pleasecontactusformoreinformation

1. Description & areas of use1.1 Precast Wall

EachPrecastWallisidentifiedbyalabelensuringitstraceabilityuntil it is integrated in the construction.

ThePrecastWallisanintegratedformworkwallconsistingoftwothinreinforcedconcreteskinstiedtogetherandheldapartbymetalstiffenersandacentralvoidforinsitufillingwithready-mixconcrete.

Precast concrete skins

Stiffener

Insituconcreteinfill

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65

TECHNICAL DATA (IN LINE WITH THE CURRENT TECHNICAL NOTICE)

Max.dimensions. up to 12.34 m x 3.80 m*

Wallthickness from 28 to 50 cm*

Thicknessofskins inner 6 to 7.5 cm/outer 6 to 9 cm

Weight approx. 350 kg/m2

Insulation from 6 cm to 20 cm:polyurethanepolystyrene

Uwall from 0.504 to 350 W/m2.K* dependingonproductionsite;pleasecontactusformoreinformation

Areas of useCanbeusedforhousesandapartmentblocks,officebuildings,industrialbuildings,shops,schools,hospitals,sportsandartscentres,industrialbuildings,category2undergroundbasements,etc.

1.2 Thermal Precast Wall

EachThermalPrecastWallisidentifiedbyalabelensuringitstraceabilityuntilitisintegratedin the construction.

TheThermalPrecastWallisanintegratedformworkwallconsistingoftwothinreinforcedconcreteskinstiedtogetherandheldapartbyasystemofconnectors(compositeconnectorsandload-bearinganchors),withalayerofinsulationontheouterskinprovidingexternalthermalinsulationandacentralvoidforinsitufillingwithready-mixconcrete.

Precast concrete skins

Insulation

Insituconcreteinfill

Reinforcement

Stainlesssteelcylindricalsleeveanchorholding the outer skin in place

Structural part

Connector madeoffibreglass,guaranteeingthe

thicknessofthewall,butalsotakinguptheloadsoftheconcreteinfillpouredinsitu,

thethermalexpansionandthepressureandnegative pressure due to the wind.

InteriorsExterior

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6666 Precast Wall products

Step 1: prepare the job launch sheet

ItemstobedefinedandprovidedtoFEHR:

•thetechnical,aestheticandenvironmentspecificities•apreciseplanlocatingtheshellsconcernedbythePrecastWallproduct•theconstructionsitelayoutplan,showingpointsofaccessandstorageareasforthecontainers•thetypeofcraneavailableanditsliftingcapacity.NB:useofacranenotinstaticmodeisforbidden•theprogressschedulefortheconstructionsite,zonebyzone,andthedeliveryintervals•thesafetymeasuresthatwillbetakenontheconstructionsite(p.101)•thechoiceofthetypeoftie-barstobeused*(p.84)•theconstructiondrawings:foundations,formwork,steelreinforcements,crosssectionsandrecesses•theconcretingratepreferred

FEHR’sengineeringdesignofficewillworkfromthestructuraldrawings(andtheloadsapplyingtothewallstobebuiltusingPrecastWall)suppliedbythecustomer’sdesignoffice.

FEHR’s design office checks the technical feasibility and optimises the PrecastWall solution based on theinformation provided by the customer, which will be recorded in “information sheets”. These contain therequirementsandconstraintsnecessarytothefeasibilitystudyandtheoptimisedimplementationofthePrecastWall solution (taking intoaccountseismicity,characteristicsof thebuilding land,climaticandenvironmentalconstraints,trafficplan,etc.)

Warning:FEHRforbidsanyuseofaPrecastWallforapurposeotherthanthatforwhichitwasdesignedbytheFEHRdesignoffice.PrecastWallarenotdesignedtoresistearthpressuresduringtheinterimphase.

2. General organisation and preparation of the construction site

2.1 Preparing the project : how to read the plans?

*NB: The choice of the type of tie-bars to be used (i.e. either conventional tie-bars or steel ties integrated in the Precast® walls, when this is technically feasible) is the customer’s decision and must be determined at the time of placing the order.The type of ties will be chosen by the FEHR design office according to the nature of the building and the stresses to be taken up. The details of the solution will be provided on the installation plan. The type of ties recommended will depend on the direction and method of installation. The user must check which type of ties is envisaged on their project.

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Step 2 : Fehr sends the assembly layout plan

Once the assembly layout plan has been validated, no more changes may be made to the plan or the composition of the deliveries.

What to check and validate in this assembly layout plan?

1.theplacingofthereinforcements2.thelowerandupperlevellingcourses,thelevels3.thelocationsoftherecessesandopenings4.theweightofthewalls5.thelayoutofthewalls

The composition of the depot : list of Precast Wall elements

Chronological depot number withdirectionofinstallationcomposition and direction ofinstallationtobecheckedagainst construction site methodology

No.ofPrecastWallonthe depot

Total area loaded

Job number to quote inanycorrespondence

Site address

WallthicknessesWalldimensions

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PrecastWallformworkplan Fo

lded

bac

k vi

ewFo

lded

bac

k vi

ew

Concealed side:4 x D9 cable

Ove

rvie

w

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PrecastWallreinforcementplan

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Installation plan - 3D view

Step 3 : production

Aftercheckingandvalidatingtheassemblylayoutplan,theplansaresentbyFEHRinelectronicform:–tothecustomer–tothecustomer’sdesignofficeisthishas

been requested.

title block sent back signedand“agreed”

NB:ThesiteforemanmustplanthedatesofthedepotdeliverieswiththeFEHRsupplychain department.

Theas-builtdrawings(DOE)asprovidedonelectronicmedia.

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2.2 Preparing the equipment

Marking, tracing

Lifting, positioning

Turning

Installation guide

Turner Sling+Pulleykit

Crane

Heeled crowbar

Spirit level and plumb line

Foam tape

All-in-One kit Rope + hook

Shears and disk grinder

Liftingkit

Chalk line Laser level orsurveyor’slevel+ rod

Cansofspraypaint

Plastic shims (differentthicknesses)

Metre Tape measure

Pencil Hammer and nails

Installation plan

All-in-One kit

ON SALEI N O U R S T O R E

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Adjustment, stabilisation

Treatment of joints

Concrete infill

Screwdriver

Screws H M16 and M20 + washers

Ratchet wrench + sockets

Push-pull props (min.2/wall)

Screws M16

Ballastifnecessary

Forfasteningtotheground: concrete screws ormetalexpansionplugsor femaleexpansionplugs+ bolts and washers

Drill Power bolter (forconcretescrews)

Hose pipe

Concreting bucket

AMP work platform

Wirebrush Float Trowel Backer rod and sealant gun

Articulatedworkplatform (workingheight=max.Precast® height+2m)

Articulatedworkplatform (workingheight=max.Precast® height+2m)

Safety features

AMP work platform

Shared use built-up scaffolding

Integrated guard rail

Traditional construction site guard rails

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2.3 Preparing the construction site before erection

Safety:GeneralrulesInaccordancewithconstructionsitesafetyrules,it is PROHIBITED to walk under a loaded crane.

Unloading : Planasuitableclearunloadingareaforthelorry(permissiblecrossslopesasshown)atleast25mlong,wherethecontainercanbedepositedandthestabilisinglegsdeployed.

Storage :Provideastorageareaforthecontainerthatisflat,withacompactedorconcretesurface,measuring 2.50 m x12.50m.

Ensurethereisaclearsafetyzoneofatleast1.5timestheheightofthelargestPrecastWallelement

Provideanextrastorageareaof2.50mx12.50mifaturneristobeused.

1

2

3

4

5

DefinethetypeofcraneaccordingtotheweightofthePrecastWallandthedimensionsofthebuildingandwheretolocateit,aswell,ifnecessary,astheturner.

Provideasupporttofixthepush-pullpropsusedtostabilisethePrecastWallontheground :–reinforcedconcreteballast–fixingonthesolidslab,flagging,foundations,etc.

–micropiles

Provideadrainagesystematthefootofthe wall ifitisundergroundorpartiallyunderground andnotsubjecttohydrostaticpressure.

1 - Unloading

3 - Turning2 - Storage

6

Max. cross slope 10%

Safety zone

Max. cross slope 5%

Max. cross slope 5%

Max. cross slope 10%Safety zone

Max. cross slope 5%

Max. cross slope 10%

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2.4 Anticipating the installation to save time and gain in efficiency : Marking out on the ground and adjusting the levels

1 Checkthatthestarterbarsaresituatedintheconcreteinfilltobepouredinsitu.

2 Mark out theoutlineofthePrecastWallaccordingtothealignmentrequiredwithachalklineorusingstripsofwood.

3 Workoutthepositionoftheelements,takingaccountoftherespectivejoints(cf.installationplan).

4 Identifyhowthepanelsaregoingtobeinstalledatthecorners(thicknessofthePrecastWallcoveredbytheoverhangoftheouterskinofthePrecastWallplacedperpendiculartoit).

5 Checkthelevelofthefoundations,findthehighpointtodeterminethethicknessofthePVCshimsneeded(from3.5to30mm),dependingontheplayprovidedforontheinstallationplanandthetypeofsealingmortar to be used.

6 Secure the starter bars: –loops–hooks–caps(NB: accident prevention bodies do not recommend the use of caps)

7 Makesuretheareaisclearedofanyrubbleetc.tofacilitatetheinstallationofthePrecastWall.

Safety loop

Compatible with the thickness of the walls

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3. Delivery of the Precast Wall3.1 Description of the containers

ThetransportandstorageequipmentusedbyFEHRarereferredtoas“containers”andtheyareself-unloadingandself-supporting.

Types of use and counter-indicationsFEHR’scontainersareusedtotransportandstorePrecastWallupright.Anyotheruseisstrictlyforbidden.ThestorageofPrecastWalloutthecontainersisforbiddenontheconstructionsite.HandlingofacontainerloadedwithPrecastWallisalsostrictlyforbidden.

DimensionsThecontainerscomein2sizes.

Half-container

4.65 m1.50 m

Standard container

9.50 m1.50 m

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Reminderofprofessionalrules:–forlifting–andhandlingon

a construction site

HoldersandafrontstopmadeofelastomerprotectandsecurethePrecastWallandtheworkerson site.

Elastomer plates at the ends–bettergrip–avoidssoiling

and scratching

Plateadjustmentsystem:amoreergonomicandsafersolution–noscrewing/unscrewing–lessarduouswork–lessnoise

Tighten

LoosenNB:itisstrictlyforbiddentotightenorloosen the nuts on the end plates Use onlyatightening/looseningbar(notsupplied).

The advantages of the FEHR container

FEHRhasdevelopedandpatentednumeroussolutionstomaketheusePrecastWallmoreergonomicon the construction site.

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lengthofflatbed12.94m

Standard delivery: Lorry + standard Faymonville trailer :

Short delivery Lorry + short Faymonville trailer :

3.2 DeliveryForthepreparationoftheplatform,seepage73ofthisguide.

Thecontainerisequippedwithfrontstabilisersthatopenautomaticallyandfixedrearstabilisers.

Accordingtoreports2015CERIB4452and2015CERIB4300,thestabilityofthecontainershasbeencheckedinthefollowingconditions:Depositingona5%maximumcrossslopeLongitudinalslopeacceptableforthevehicleandlessthan10%Workingwindspeedof85km/hBearingcapacityofthegroundontheplatformwherethecontainerisdeposited:classPF2platformandsurfaceallowingthelorrytodiver over it without damaging it.5,000Jimpactinanaccidentalsituation

It is essential to ensure these requirements are met when unloading and using the containers.

Atthesametimecarewillbetakentoensurethatintheeventofastronggustofwinddestabilisingthecontainer,ifthelatterfallsoveritwillnotendangeranypersoninthevicinityorthebuilding.

Automaticfrontstabilisers

Fixedrearstabilisers

3.3 Storage

NB : the storage of Precast Wall and Thermal Precast Wall out of the container is forbidden.

lengthofflatbed9.10m

NB :OndeliveryofthePrecastWall,thedeliverynoteissignedelectronicallyusingourFDriverapplication.

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3.4 Returning empty containers

Usea4-leggedslingsuitedtotheweightofacontainer≤1700kg

Rules for lifting and handling empty containers

Itisforbidden•touseapulley•tomoveacontainerloadedwithPrecastWall•tomoveacontainerusingsitemachinery

2 - Attach the 4-legged sling to the anchor points provided.

1 - Remove the secondary rack

The main rack equipped with stabilisers is welded onto the chassis

Thesecondaryrackisboltedonto the chassis and must be removedbeforehandlingtheemptycontainer

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•makesurethecontainersareperfectlyaligned• all the stabilisers must be retracted• the racks must be positioned one up against the other •whereapplicable,thesecondaryracks,alreadydismantledbeforelifting,mustbeplacedflatontopofthestackofcontainers,endplates upwards

EachcontainerhasanidentificationnumbercontainedinaQRCode.With FEHR’s FDriver application you can scan this QR Code to facilitate the return process.

NB : Containers must be returned to FEHR in their original condition.

7 half-containers max.

4 classic containers max.

3 - Stack the containers

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Safety: General instructions

4. Installation of Precast Wall

ThetechnicalliftingsolutionsdevelopedbyFEHRforitsPrecastWallallowmostofthemtobegrippedat2liftingpoints,includingtheheaviestPrecastWallelements.Insomeparticularcases,however,4liftingpointsmaybenecessary;inthesecasesitwillbenecessarytousealiftingbeamtoensuretheloadsareevenlyspreadbetweentheliftingropes.

NB : Lifting the walls flat is strictly forbidden, including for sawing operations on the ground before installation.

- Checktheliftingequipmentisingoodcondition,- Checkthehandlingslingsareingoodcondition:anchoredintheconcrete,noprotrudingedges,

- Theuseofaheadpulleyisforbidden,- Followtheslingingrules,- Ensurethemax.angleof60°betweenthe2legsoftheslingisnotexceeded,- Neverfix2hooksontothesamehandlingslingor2handlingslingsontothesamehook,

- Thebenddiameterofahandlingslingmustnotbelessthantwiceitsdiameter.

- Theuseofa“lattice”cranetoliftPrecastWallistoleratedistheliftingisdoneinstaticmode.Itisforbiddentomovethecranewhencarryingaload.

4.1 Unloading Precast Wall

Instructions for unloading the wall: Thisoperationrequiresthepresenceof2people:oneinchargeofhandlingthewall,the other to oversee the operations.Thewallsmustberemovedfromthecontainerintheorderofpresentation and access to the slings.

Handle the walls with the integrated handling slings(NB:Thehandlingslingsarenotreusable).

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Handling kit for Precast Wall

Handling kit for Thermal Precast Wall

Fixedleg

forawallweight≤12T:a=tiltangle≤11,5°d=distancebetweenthehighestpointandthelowestpoint:<20%ofthelengthofthewall

d

a

Head ring

Sling with adjustable leg

OverallSWL:14T

Fixedleg

Notches in the insulation allowing themovementofthehandlingslings.TobefilledinwithPUfoamonce the panel is in position.

Head ring

Sling with adjustable leg

ANGLE< 60°!

ON SALEI N O U R S T O R E

ON SALEI N O U R S T O R E

ANGLE< 60°!

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4.2 Turning Very High Precast Wall

Afterunloading,theVeryHighPrecastWallmustbeplacedintheFEHRturner.

Forthepreparationoftheplatform,seepage73ofthisguide.

Turner with ballasted baseOveralldimensions:4.49mx1.52mWeight:2550kg

– economical– easy to handle (thanks to the red hooks

provided to this effect)– self-loading/unloading without a crane

Hook

Guide wheels

Chock

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Makesurethereisamaximumslopeandcrossslopeof5%

Cordonofftheareaofmovement

Placetheyellowchock

usingthehandlingkit(p.81),extractthePrecastWallfromthecontainerandplaceitin the turner

Tightentheyellowguidewheelsmoderately

Put the props in place

Puttheturningkitinplace(p.84)

Loosen the guide wheels to release the Precast wall and turn it and then put it in position.

5% max. 1

2

3

4

5

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Head ring

Adjustablehoistforbalancing

Openingpulleys

1

3

3

Pulley-slingassemblyOpeningpulleysBalancers

212

Turning kit for Thermal Precast Wall

Head ring

Sling with adjustable leg

1

2

Pulley-slingassemblyOpeningpulleys2

1

Turning kit for Precast Wall

ON SALEI N O U R S T O R E

ON SALEI N O U R S T O R E

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Position PrecastWall“B”initslocation,nextto PrecastWall“A”.

Theflexibletie-barsinPrecastWall“B”slotin,asitdescends,betweentherigidtie-barsinthe PrecastWall“A”.

The connection between the 2 PrecastWalls ismade:alltheflexiblebarsinthePrecast Wall“B”haveslottedinbetweentherigidbars in PrecastWall“A”andarepositionedhorizontally,whichcanbecheckedatthejoint.

Tomaketheconnection,thestraightsteelbarmust be positioned between the loops in the tie-bar.

4.3 Installing Precast Wall with integrated steel tie-bars

Placethewallplumbinitslocation,positionit on the plastic shims and in line with the markings.B

A

B

B

A

A

Thetie-barsareintegratedintothePrecastWall(PrecastWall“B”)wallinthefactoryintheformofamodule,combinedwithaCSA(cut-shaped-assembled)basket.Thecharacteristicofthismodule,ofequivalentheighttothatoftheverticalconnection,isthatthehorizontalreinforcement(hairpin)canpivotandthereforeintegratewithoutanyconflictintothePrecastWallalreadyinplace(PrecastWall“A”)wheninstallingwallsedgetoedge.PrecastWall“A”hasabasket,withthesamespacing,opposite,which,oncethewallisinposition,enablesthehairpintobekepthorizontal.WhenPrecastWall“B”isputintoplace,thepartofthetie-barthatoverrunsPrecastWall“B”pivotsalongeachframeofPrecastWall“A”untilitrestsontheframeoppositeinPrecastWall“A”.

Afterconcreting,incorporatethesteelbarsatthetopofthewall.

1

2

3

4

5

6

7

Check the PrecastWalliscorrectlypositionedon the shims and in line with the markings (in particularasregardsthepositionofthejoints).

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Stabilise the wall with push-pull props and adjustuntilitisperfectlyplumb

Fillspaceswithfoamtapetoavoidlaitanceleakage

Advantages : – No need to procure, store and handle

steel rebars– No waste to be disposed of– No strenuous work involved – No time wasted

8

9

Bird’s eye view of the tie-bars integrated in a CL wall

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Inthiscase,thecustomermustensurethat,basedontheinformationavailableintheinstallationplan,ithasprocuredenoughoftherighttypeofsteeltie-barsfromitsrebarsupplier.

The tie-bars are inserted as the installation progresses.

The principles that apply to tying Precast Wall together are given below. This applies to verticalconnectionsbetweenPrecastWalls.OtherroutineexamplesareavailableinthetechnicalnoticesforPrecastWallorThermalPrecastWalls.

4.4 Installing Precast Wall/Thermal Precast Wall without integrated steel tie-bars

Put the steel tie-bars in place (asyougoalong)

Placethewallplumbinitslocation,positionitontheplasticshims and in line with the markings.

Stabilise the wall with push-pull props and adjust until it is perfectlyplumb

Fillspaceswithfoamtapetoavoidlaitanceleakage

1

2

3

4

5

Putanystraightsteelbarsinplace

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Simple articulated connection

Splice link

Straight :

Straight :

Corner :

Corner :

Inthiscase,thereinforcementcouldbeputinplaceafterthePrecastWallareplaced.

Embedded link

Straight : Corner :

Steel tie-bars

2HA10 to be integrated in situ

Folded welded mesh

Straight steel bars to be integrated in situ

TYPE 3 steel tie-bar

Opening to facilitate sliding at the bottom

of the wall 20x20

6 straight steel bars to be integrated in situ

Straight steel bars to be integrated in situ

Frames to be integrated in situ HAXX e = XX cm

Steel tie-bar

Opening to facilitate sliding at the bottom of the wall 20x20

Straight steel bars to be integrated in situ

Straight steel bars to be integrated in situ

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4.5 Particularity concerning the installation of Thermal Precast Wall

WheninstallingThermalPrecastWalloneabovetheother,itisnecessarytoplaceashimontheouterskin.

Itisnecessarytomakesuretheouterskinisheldbyanotherdeviceoncetheslingsareremovedfromthewall,incasethetiesareinsufficient.Wherenecessary,theouterskinmustrestonastrongsupportusingshimsthatarerigidenoughtoresist compression

Theshimmingwillbedoneeitheronastrongsupport(provisionalorastructuralelement)orontheouterskinofthePrecastWallbelow,whichisitselfrestingonastrongsupport,withshims.

These shimsmaybewedge-shaped,with a height corresponding to the joint dimensioned. Itwillalso be possible to use shims that are not wedge-shaped with a height corresponding to the joint dimensionedminusthemanufacturingandinstallationtolerances,couplewithanexpandingseal.

TheshimscanberemovedoncethecoreinfillconcreteinthetopPrecastWall has set.The shims must removedstartingwiththehighesthorizontaljointsandworkingdowntothelowest.

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Fixingontheground:differenttypesofstabilisationonthegroundarepossible.Anyspecifictypeofshoringenvisagedshouldbevalidatedbyourengineeringdesignoffice.

FEHRrecommendfixingthetoppartofthepush-pullpropsontothePrecastWallbeforeinstallingit.

4.6 Method of anchoring and type of shoring

30°

30°

30°F

F

F

Solid slab, flaggingBallastFoundation

Thepush-pullpropswillbechosenaccordingtothedimensionsofthePrecastWall.

ThefixingsusedareM16s.ThenumberandlocationofthepropswillbedecidedbyFEHR’sengineeringdesignofficeandwill indicated on the installation plan.Thefixingsarenormallyplacedontheinnerskin,butcanbeplacedontheouterskindependingonthespecificrequirementsoftheproject.

Bydefault,thesizeoffixingsusedisadequateforawindspeedof85km/h.Inwindsabove85km/h,theworkareaaroundPrecastWallnotcross-bracedbythestructureshouldbeevacuated.

Shims Shims Shims

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Wallssubjecttosevereloadsduringtheinterim phase require serious stabilisation at the top and bottom.

Ifnecessary:

• Seal in the anchors when casting the foundations

• Stabilise the PrecastWallbyaddinghorizontalpropsatthebottomofthewallto ensure : –itsplumbness–itsstability

1 Horizontalprops

2 Concrete block(orfoundation)

12

The props should only be removed when the wall’s stability is effective in accordance with the recommendations of the structural design office or engineering office.

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4.7 Infilling with concrete

Ensure thatall theworkplanned tobedonebyother tradesbeforeinfillinghasbeendone(inparticulartheelectricianfortheinstallationofducting,blocks,etc.).

Checkthesafetyequipmentisinplace.

HydratetheinsideofthePrecastWalltoimprovetheflowoftheconcreteduringinfillingandachievebetteradherencetothe sides.

Concretethewallsfromthegroundusingtheconcretingkit,orfromtheworkplatform,makingsuretorespecttheconcretingrateandthemax.fee-falldistanceindicatedonthe installation plan.

Completethesafetyinstallationsatthetopofthewall.

Installtheprecastslaborplacetheformworkfortheslab.

PlacethehorizontalPrecastWalltie-barsforthenextlevelorthe wall ties.

Concretetherestofthewallfromtheprecastslab.

–Thicknessofcoreinfilltobepouredinsitu< or = 9 cm : BPS - NF EN 206/CN - XF1 C25/30* - Dmax 12.5

Recommended consistency target value 200 mm to 220 mm

–Thicknessofcoreinfilltobepouredinsitu> 9 cm : BPS - NF EN 206/CN - XF1 C25/30* - Dmax 16

Recommended consistency target value 200 mm to 220 mm

ConcretingfromtheAMPworkplatform

Concretingfromtheground

What type of concrete to order?

Remark:TheinfillconcretemustmeettherequirementsofstandardNFEN206/CNandthespecificationsoftheprojectinquestion.*Thestrengthclassisthatrequiredbythestructuraldesignoffice

and will be at least equivalent to C25/30.

1

2

3

5

4

6

7

8

The concreting is done without vibration (except if there is a high density of reinforcements)

Itisrecommendedthatconsistencyoftheconcretebecheckedbydoingaslumpconetest;itisalsorecommendedthatyoucheckbeforeconcretingthatallthesteeltie-barsandextrasteelreinforcementsarepresent,thatthecaulkingofthejointsbetweenwallshasbeendoneandthattheformworkisinplaceatanyopenings.

9

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•Theconcretingratespecifiedontheinstallationplanmustberespectedtoavoidthewallburstingapart (foranexternaltemperatureof+15°Candabove)-(bydefault70cm/hour).

•Theconcretingratemustbereducedby20%ifthetemperatureoftheskinsisbelow10°Candby30%forskinstemperaturesbelow5°C.

•Theconcretingratecanbeoptimised,aslongasasettingacceleratorisusedintheconcretepouredin situ. (Formoredetails,seethetechnicalnotice).

•Specialcase:Precastslabscanbeinstalledonnon-infilledwallsaslongastheslabissupportedbyshoring towers (FEHR’sengineeringdesignofficemustbeconsultedinadvance).

• Concretingjoints:concretingisstoppedatleast200mmbelowthetopsurface,adistancethatmustbecompatiblewiththecoveringofanyreinforcements:

Concrete joint in the case ofaslab.

ConcretejointinthecaseofaPrecastWallplacedoneontopofthe other

Itisrecommendedthatyouanticipatetheverticaljointsealsby ordering a metal profile (e.g. Nerlat) - available as anoptionalextra-whichcanbeintegratedintothePrecastWallinthefactory.

The contractor must ensure that the concrete in one pass has set before starting the next pass. Particular attention must be paid to ensure the first pass has set.

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9494 Precast Wall products

Height of concrete chute :

For heights > 3.00 m the infill must be done :

1 Byintroducingaflexibletube(where the space between thetwoskinsallowsit)

2 Through one or more openings whilst respecting the same free-falldistance.

Concreting from above :Several solutions are possible :

–iftheconcretingheightis≤4m,aspecialindividualworkplatformforwallswithintegratedformwork(AMPplatformavailablefromtheFEHRstore)canbeused,orportablescaffolding,

–iftheconcretingheightis>4m,thebestsolutionisanaerialworkplatform.

Concreting from the ground :Theupperfloor,forexampleaprecastslab,canbeusedtoconcretefromaslongassuitableprotectionisplacedalongtheedgesfirst.Theshoringoftheprecastslabsmustthenbeadaptedtoconcretepouringoperations(potentialexcessload).

WhenthePrecastWallistobefilledusingachute,thecontractormustensurethatthechuteisofasuitablediameter,inparticularwhenthegapbetweenthe2skinsisnotverywide.

Flexibletube

3.80mmax.

Concreting opening

3.80mmax.

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4.8 Treatment of joints

ThejointsaretreatedduringthefinishingphaseofthebuildingstructurebeforethefinishingtradesbeginworkonthePrecastWall.Toaccessthehighjoints,useofperipheralscaffoldingoranaerialworkplatformisrecommended.

4.8.1 Precast Wall

STA

ND

ARD

SU

PERS

TRU

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RE W

ALL

SEC

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N

Steel tie-bar

Facade walls with paint, lasure, untreated or marked joints

Facade walls with hydraulic render

Facade walls with waterproof render

Foam backing rod

Elastic sealant, class SNJF25 E

Filling with mortar

ScrimHydraulic render

Waterproof render

Shrinkage compensating hydraulic mortar

Inner surface

INN

ER S

URF

ACE

OU

TER

SURF

ACE

Steel tie-bar

Steel tie-bar

Steel tie-bar

Foam backing rod

Foam backing rod

Foam backing rod

Filling with mortarScrim

Elastic sealant, class SNJF25 E

Seal

Seal

Seal

Seal

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9696 Precast Wall products

Seal Steel tie-bar

Impregnated foam sealant rod

Foam backing rod

Accessible skin

Non-accessible skin (non-service location)

Self-adhesive bitumen tapeFilling with repair

mortar

Inner surface

Shrinkage compensating hydraulic mortar

OU

TER

SURF

ACE

AG

AIN

ST E

ART

H

STA

ND

ARD

INFR

AST

RUCT

URE

WA

LL S

ECTI

ON

INN

ER S

URF

ACE

Steel tie-bar

Steel tie-bar

Foam backing rod

Seal

Seal

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acier de liaison

3 cm

Cordon de moussefond de joint

Mastic élastique de classement SNJF F 25 E,apte à résister aux pressionshydrostatiques

acier de liaisonjoint

joint

3 cm

Cordon d’étanchéité de mousse imprégnée

joint acier de liaison

3 cm

Cordon de moussefond de joint

Mastic élastique de classement SNJF F 25 E,apte à résister aux pressions hydrostatiques et au contact de solutions agressives

Surface in contact with the earth

Steel tie-bar

Impregnated foam sealant rod

Foam backing rod

Elastic sealant, SNJF F 25 E, able to resist

hydrostatic pressure

Elastic sealant, SNJF F 25 E, able to resist hydrostatic

pressure and contact with aggressive solutions

Water pressure

Skin in contact with an aggressive environmentWA

LL S

UBJ

ECT

TO H

YDRO

STAT

IC P

RESS

URE OU

TER

SURF

ACE

INN

ER S

URF

ACE

(res

ervo

ir)

Foam backing rod

Steel tie-bar

Steel tie-bar

Seal

Seal

Seal

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Treatment of horizontal joints on foundations

•Toensurecorrectuseofeachproduct,seethemanufacturer’sinstructions.•Sealantusedbetweenpanelsmustbeappliedtosurfacesfreeofdust,thatarenotwetandwhichhavebeentreated,ifnecessary,withaprimerrecommendedbythesealantsupplier.(min.depthofsealant:2cm)

•Sealantsonoutersurfaceswillneedredoingevery10to15years.

Backer rodSealant such as Sikaflex Construction

Accessible skin

Foundation or raft

Balcony

BALC

ON

IES

OU

TER

SURF

ACE

AG

AIN

ST E

ART

H

Accessible skin

Standard balcony jointSTA

ND

ARD

INFR

AST

RUCT

URE

WA

LL S

ECTI

ON

NB : Expanding backer rod only plays a role during the interim phase. It is not indispensable to guarantee a good seal to the joint in the final phase.

Backer rod

Backer rod

Foundation or raft

Sealant such as Sikaflex Construction

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4.8.2 Precast WallTreatment of joints - Façade wall with paint, lasure, untreated or marked joints

•Toensurecorrectuseofeachproduct,seethemanufacturer’sinstructions.•Sealantusedbetweenpanelsmustbeappliedtosurfacesfreeofdust,thatarenotwetandwhichhavebeentreated,ifnecessary,withaprimerrecommendedbythesealantsupplier.(min.depthofsealant:2cm)

•Sealantsonoutersurfaceswillneedredoingevery10to15years.

Expanding backer rod

STA

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TRU

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RE W

ALL

SEC

TIO

NST

AN

DA

RD IN

FRA

STRU

CTU

RE W

ALL

SEC

TIO

N

Void or space filled with insulating foam or a compressible insulating joint strip

Expanding seal Insulation

Steel tie-bars

SealFlexible sealant such as KATAROC PREDALLES

Category 1 sealant, such as SIKAFLEX CONSTRUCTION

Single-component mortar such as SIKA MONOTOP 612

Self-adhesive waterproofing strip such as SIKA Multiseal

Outer surface

Inner surface

Inner surface

Insulation

Steel tie-bars

Expanding backer rod

Expanding backer rod

Expanding backer rod

SealFlexible sealant such as KATAROC PREDALLES

Expanding seal

Void or space filled with insulating foam or a compressible insulating joint strip

Seal

Seal

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Joint intersections

• General view

•Close-upofthejointintersection

Seals

Opening to evacuate moisture

Flashing glued at the joint intersection

WA

LL 2

WA

LL 1

WA

LL 4

WA

LL 3

Glued-onflashing Expandingseal

EXTERIORINTERIOR

WALL 2

WALL 4

WALL 4

WALL 3

Flashing glued at the intersectionoftheverticalandhorizontaljoints

Expandingseal

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ThePrecastWallconceptisperfectlysuitedtotheuseofworkplatforms,guardrailsandperipheralscaffolding.

Forperipheralorbracketpouringplatforms,onrequestFEHR’sdesignofficecanplanthelayoutofthePVCsleevestobeinsertedintothePrecastWallinthefactory.

Thefastenerswillbefixedintheconventionalway,usingplatesandsuitablebolts.

Theconcreteinfillingofthewallsmustalreadyhavebeendone.

•Foraheightlessthan4.00m:accessthewallusingandindividualplatform: AMP (availablein2heights)–availablefromtheFEHRstore

•Foraheightover4.00m,werecommendusinganarticulatedaerialworkplatform

•Itisalsopossibletousestandardconstructionsiteequipmentsuchasabracketplatformwhichwillbefixed1mfromthetopofthewall(wallpocketstobespecifiedwhenorderingthewalls– Precast Wall only).

•Scaffolding

5. Safety features

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ThePrecastWallsolutionallowstheuseofsharedusebuilt-upscaffolding: werecommendusing“MDS”-typesafetyscaffolding

Thisscaffoldingwillbeusedbyallthetrades needing to work at height and will serve :

–asprotectionagainsttheriskoffallingfromaheight,

–asanergonomicworkstation,

throughoutthedurationoftheconstructionsite(buildingshell,roofstructure,joints,painting,installation,ofwindows,etc.)

This scaffolding will need to be designed at the same time as the construction project

Thisscaffoldingmustbeinstalledbyaspecialistcontractororqualifiedpersonnel,asrequiredbyArticleR4323-69oftheFrenchLabourCode.

Sharedusescaffolding:

–providesoptimumworkingconditions:continuityofcollectiveprotectionagainstagainsttheriskoffallingfromaheightandfallingobjects,

–allowssuccessiveand/orsimultaneousworkingbythecontractors,

–securesaccesstothefacades,

–renderstheworklessarduous,

–improvesergonomics,

–reducesthenumberofoperations (transport,assembly,disassembly,etc.)

5.1 Shared use built-up scaffolding

ThePrecastWall systemallows the installation ofscaffolding

1 level in advance

1 2

Safeinstallationofprecastslabsandpouringof1stfloorslab

3

Safeerectionofthe2ndlevelofwallfromtheprecastslab

Safeerectionofthe2ndlevelshoring towers and complete scaffolding

4

Safeinstallationofshoringtowersand the 1stlevelofscaffoldingaftererectionofthe1stlevel

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5.2 Guard rails integrated into Precast walls

Theintegratedguardrailprotectsagainstfallsfromaheight.This solution does not require theremovaloftheguardrailsatanytimeduringtheinstallationworkphases: idealconstructionsitesafety!

Description :

Standard guard rail (GCS)(1.95 m wide – 1.10 m high) galvanised steel. Weight approx. 25 kg. The toeboard overruns by 10 cm to ensure continuity of protection at the bottom.

Adjustable guard rail (GCR)(1.20 m to 1.90 m wide – 1.10 m high) consisting of a fixed central part and 2 sliding side parts. Can be adjusted from 1.20 m to 1.90 m with intervals of 5 cm. The side parts must be extended by the same amount on either side to ensure overall balance when handling with the poles. The GCR weighs approx. 37 kg. It locks with pins on the middle rail.

2 types of guard rails are available :

Plate screwed onto an insert embedded in the PrecastWall skin

Guardrail(fixedoradjustable),fixedontotheplateontheconstruction site

The guard rail comes in two versions:fixedoradjustable,bothofwhichsloteasilyintotheplatepre-embeddedinthePrecastWallinthefactory.

FEHR fastening plate

Fixed guard rail

Adjustable guard rail

Guard rails can be hired directly from the FEHR store.

(preferred solution for Precast Wall)

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Advantages :

• optimum safety

• no tools required : simply slots in

• installed quickly

• openings in the slab (e.g. for stairs or lifts) are protected

• protection against falls from a height around the edge of the building during all the work :– installation of precast slabs– concreting of precast slabs– installation of next level of Precast

Walls

The use of FEHR guard rails must be planned for in the design

of the construction.

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Installation

Place the guard rails with a crane

The guard rail simply slots into the fastening plate

Sling the Precast Wall and take it out of the container

ArrivalofthePrecastWallontheconstructionsite,pre-equippedwithfasteningplates

Slots simply and quickly into the fastening plate

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Using the crane, lift the guard rails using the pole

Fit directly onto the next Precast Wall to be installed

Installing the first level

Install the next level

Fill in the holes where the plates were fixed at the same time as the joints.

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5.3 FEHR fastening plate + mixed adapter + traditional construction site guard rails

MixedadapterscanbeslottedintotheFEHRfasteningplates(screwed into an insertembeddedinthePrecastWallskin)

Theseadaptersallowyoutoinstalltraditionalconstructionsiteguardrailson the FEHRfasteningplatesandtobenefitfromassemblyoftheguardrailsoutside the work areas.

Themixedadapter isspeciallydesignedtoreceiveØ40orØ25postsonthesame device.

Mixedadapter

FEHRfasteningplate

(preferred solution for Precast Wall)

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5.4 AMP work platform(mobileaccessforPrecastWall)

Technical characteristics

• Material : aluminium•Workplatform:55cmwide•Easilytransportable•Suitableforuseonunevenground

ThemobileaccessforPrecastWall (AMP)enablesyoutoaccessPrecastWallsintotalsafetytoinsertsteeltie-barsortopourtheconcreteinfill.

Totalperipheralprotectiontotaloftheuserthankstotheintegratedguardrail,FreedomofmovementAttaches inside the wall

2. ExtrahighAMP:4.39m1. Standard AMP: 3.67 m

ON SALEI N O U R S T O R E

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Prefabrication plants Concrete mixing plants (East France)

FRANCE62, route de Strasbourg - BP 46F-67242 BISCHWILLER CEDEX Tel. +33 (0)3 88 06 27 90 Fax +33 (0)3 88 06 27 91

LauterbourgRoute de Mothern67630 Lauterbourg

Bischwiller62 Route de Strasbourg67240 Bischwiller

GundershoffenRoute de Gumbrechtshoffen67110 Gundershoffen

EschauRoute du Rhin67114 Eschau

Hochfelden8 quai du Canal67270 Hochfelden

Moyeuvre GrandeZI du Barrage de Beth 57250 Moyeuvre Grande

Schweighouse/ModerZI La Sablière 67270 Schweighouse/Moder

Pompey 102 Boulevard de la Moselle54340 Pompey

OberschaeffolsheimChemin du Hitzthal67203 Oberschaeffolsheim

GERMANYGmbH & Co. KGTriebstraße 34D-68753 WAGHÄUSEL - WIESENTALTel. +49 7254 209 0Fax +49 7254 209 100

GERMANY UHPCFranz-John Strasse 13/1D-77855 ACHERNTel. +49 7841 6812 904

FRANCE1, chemin du portF-77670 VERNOU LA CELLE SUR SEINETel. +33 (0)1 60 39 61 70Fax +33 (0)1 60 39 61 81

FRANCE345 Chemin des TeppesF-26300 CHATEAUNEUF SUR ISERETel. +33 (0)4 75 25 98 80Fax +33 (0)4 75 25 98 81

Service commercialTel. 0825 800 818

Service commercialTel.+33(0)3 88 80 94 70

Fehr Groupe SAS (head office)ZA Emile Mathis - 21 route de Froeschwiller - F-67110 REICHSHOFFEN

Tel. +33 (0)3 88 80 86 30 - Fax +33 (0)3 88 80 34 52

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