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  (/knowledge-corner.html).  Glossary, properties and capacities of scaffold elements The below scaffolding glossary, properties and capacities are based on UK market. I take no responsibility for the below information, use it at your own risk and make sure to double check the values.  (/) Start Here (/) Spreadsheets (/spreadsheets.html) YourEmails (/youremails.html) Checkout (/checkout.html) - (http://www.yourspreadsheets.co.uk) Knowledge Corner (/knowledge- corner.html) Custom Work (/custom-work.html) Contact me / Activation (/contact- me--activation.html) Click here to go back to Knowledge Corner Properties and capacities Properties of standard scaffold tubes in accordance with TG20 / BS 5973: 1993 / BS 1139 - 1.2 / BS EN 12811-2  Allowable scaffold tube strut loads (based on 'as new' scaffold tube as given above) in accordance with TG20  Properties of scaffold boards in accordance with TG20 / BS 2482:1981  Outside diameter = Wall thickness = Cross sectional area = Mass = Inertia = r = Zp (S in TG20) = Ze = Allowable bending moment = Allowable shear = Min yield strength = Modulus of elasticity = Steel tube (as new U.N.O.): 48.3 (+/- 0.5) mm 4.0 (+0.47/-0.4) mm 5.57 cm2 4.37 kg/m 13.8 cm4 1.57 cm 7.87 cm3 5.7 cm3 1.12 (used tubes: 0.99) kNm 26.1 (used tubes: 23.3) kN 235 N/mm2 210000 N/mm2 Aluminium tube: 48.3 (+/- 0.5) mm 4.47 (+0.56) mm 6.15 cm2 1.67 (-7.5%) kg/m 14.9 cm4 1.56 cm 8.61 cm3 6.18 cm3 1.33 kNm 25.5 kN 255 N/mm2 70000 N/mm2 Effective length: 0.6 m 0.8 m 1.0 m 1.2 m 1.4 m 1.6 m 1.8 m 2.0 m 2.2 m 2.4 m 2.6 m 2.8 m 3.0 m 3.2 m 3.4 m 3.6 m 3.8 m 4.0 m Safe axial load: Steel tube 70.9 kN 65.0 kN 58.6 kN 51.9 kN 45.3 kN 39.2 kN 33.7 kN 29.1 kN 25.3 kN 22.0 kN 19.3 kN 17.1 kN 15.2 kN 13.6 kN 12.2 kN 11.0 kN 10.0 kN 9.1 kN Safe axial load: Aluminium tube 79.3 kN 64.8 kN 48.9 kN 36.5 kN 27.9 kN 21.8 kN 17.5 kN 14.4 kN 12.0 kN 10.1 kN 8.7 kN 7.5 kN 6.6 kN 5.8 kN 5.2 kN 4.6 kN 4.2 kN 3.8 kN Width = Standard 225 mm Super Boards 225 mm Omega Timber Batten 225 mm

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  • (/knowledgecorner.html).

    Glossary,propertiesandcapacitiesofscaffoldelements

    Thebelowscaffoldingglossary,propertiesandcapacitiesarebasedonUKmarket.Itakenoresponsibilityforthebelowinformation,useitatyourownriskandmakesuretodoublecheckthevalues.

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    Propertiesandcapacities

    PropertiesofstandardscaffoldtubesinaccordancewithTG20/BS5973:1993/BS11391.2/BSEN128112

    Allowablescaffoldtubestrutloads(basedon'asnew'scaffoldtubeasgivenabove)inaccordancewithTG20

    PropertiesofscaffoldboardsinaccordancewithTG20/BS2482:1981

    Outsidediameter=Wallthickness=

    Crosssectionalarea=Mass=

    Inertia=r=

    Zp(SinTG20)=Ze=

    Allowablebendingmoment=Allowableshear=

    Minyieldstrength=Modulusofelasticity=

    Steeltube(asnewU.N.O.):48.3(+/0.5)mm

    4.0(+0.47/0.4)mm5.57cm24.37kg/m13.8cm41.57cm7.87cm35.7cm3

    1.12(usedtubes:0.99)kNm26.1(usedtubes:23.3)kN

    235N/mm2210000N/mm2

    Aluminiumtube:48.3(+/0.5)mm4.47(+0.56)mm

    6.15cm21.67(7.5%)kg/m

    14.9cm41.56cm8.61cm36.18cm31.33kNm25.5kN

    255N/mm270000N/mm2

    Effectivelength:0.6m0.8m1.0m1.2m1.4m1.6m1.8m2.0m2.2m2.4m2.6m2.8m3.0m3.2m3.4m3.6m3.8m4.0m

    Safeaxialload:Steeltube70.9kN65.0kN58.6kN51.9kN45.3kN39.2kN33.7kN29.1kN25.3kN22.0kN19.3kN17.1kN15.2kN13.6kN12.2kN11.0kN10.0kN9.1kN

    Safeaxialload:Aluminiumtube

    79.3kN64.8kN48.9kN36.5kN27.9kN21.8kN17.5kN14.4kN12.0kN10.1kN8.7kN7.5kN6.6kN5.8kN5.2kN4.6kN4.2kN3.8kN

    Width=Standard225mm

    SuperBoards225mm

    OmegaTimberBatten225mm

  • ScaffoldcouplersafeworkingloadsinaccordancewithTG20/EN74/testsbyothers

    SteelScaffoldBeamsinaccordancewithBS449/BS5973

    Modulusofelasticity=210000N/mm2

    AluminiumScaffoldBeamsbasedonmanufacturers'specification

    Modulusofelasticity=70000N/mm2

    Mainscaffoldingterms

    Anchoranelementthattransfersforcesbetweenascaffoldingtieandasupportingstructure.Canbetemporaryorpermanent.

    BasePlatearigidplateunderastandard,usedtospreadreaction.Bayspacebetweentwoadjacentstandardsalongfaceofascaffold.BayLengthdistancebetweencentresoftwoadjacentstandards.

    Thickness=Massperunitlength=Massperunitarea=

    Maxsupport=Minsectionmodulus=

    AllowableB.M.(1board)=AllowableB.M.(4boards)=

    Boardoverhandmin=Boardoverhandmax=

    38(+/2)mm6kg/m

    25kg/m21.2m(+100mm)

    47.5cm30.48kNm0.71kNm50mm150mm

    38(+/2)mm6kg/m

    25kg/m21.5m(+100mm)

    47.5cm30.63kNm1.01kNm50mm150mm

    63(+/3)mm10kg/m41kg/m22.5m

    132cm31.30kNm1.30kNm50mm250mm

    Couplertype:Rightanglecoupler(ClassA)=Rightanglecoupler(ClassB)=

    SGBMK3Arightangle=Swivelcoupler(ClassA)=Sleevecoupler(ClassA)=Sleevecoupler(ClassB)=Parallelcoupler(ClassB)=

    Putlogcoupler=SGBBraceD/H=

    Spigotpin=Adjustablebase/FH=

    Slippingforce6.1kN9.1kN12.5kN6.25kN3.60kN5.45kN6.10kN0.63kN5.0kN

    Shear

    21kN

    Axial

    30kN

    Beamtype:Ladder

    UnitLayher450mmLayher750mm

    Iyy2600.0cm410572.0cm44481.0cm413702.0cm4

    Selfweight0.1275kN/m0.1300kN/m0.1000kN/m0.1600kN/m

    MaxallowableB.M.13.70kNm27.70kNm24.98kNm55.16kNm

    Maxallowableshear18.0kN20.0kN18.54kN27.27kN

    NOTE:Beamcapacityisafunctionofspacingoflateralbracing.Thistobeprovidedinaccordancewithmanufacturer'sspecification.

    Beamtype:CombisafeUbix450

    ASP610ASP750

    CombisafeUbix780Haki450Haki750

    Layher450Layher750

    Rux450ApolloCradleX

    Iyy4957.86cm416563.1cm417340.8cm417340.8cm44483.0cm417182.0cm44481.0cm415195.0cm4notgivennotgiven

    Selfweight0.045kN/m0.060kN/m0.060kN/m0.060kN/m0.050kN/m0.074kN/m0.050kN/m0.060kN/mnotgivennotgiven

    MaxallowableB.M.19.60kNm18.50kNm43.80kNm36.50kNm15.70kNm41.90kNm13.94kNm42.50kNm18.12kNm42.90kNm

    Maxallowableshear17.10kN24.00kN31.50kN30.70kN12.70kN30.60kN12.32kN25.60kN9.70kN45.40kN

    NOTE:Beamcapacityisafunctionofspacingoflateralbracing.Thistobeprovidedinaccordancewithmanufacturer'sspecification.NOTE:ASPwasboughtbyCombisafeandnowonlyUbix450(previouslyASP450)andUbix780(previouslyASP780)areavailable.OtherASPsizesarelistedforreference.

  • Allrightsreserved20092015DamianJanicki

    Coupleranelementthatconnectstwoscaffoldtubestogether.

    Ledgeralongitudinalscaffoldtube(normally)paralleltoabuildingface.Supportsputlogsortransoms,andfrequentlyfortiesandledgerbraces.Usuallyconnectedtoadjacentstandards.

    Putlogascaffoldtubewithflattenedend.Restsinoronpartofabrickworkstructure.

    Safeworkingmomentisacharacteristicmomentofresistancedividedbyafactorofsafety.Scaffoldtubeanytubularelementofascaffold:standard,ledger,transometc.Standardaverticalscaffoldtube.Swivelcoupleracouplerforjoiningtubesatanangle(i.e.otherthanatarightangle).

    Tieconnectsascaffoldtoananchor.Transomascaffoldtubespanningacrossledgersandsupportingscaffoldboardsformingaworkingplatformorconnectingouterstandardstoinnerstandards.

    Workingloadaloadthatcanbesafelycarriedbyastructuralmember.

    Yourcomments

    Perpendiculartotransoms.

    Perpendiculartoscaffoldboards.

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