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Mid-rise timber constructionoverview

Paolo.Lavisci@WoodSolutions.com.auProgram Development ManagerMid-Rise Construction

- Different system options

- NCC 2019 changes

- Mid-rise Advisory Program

- Conclusion

OUTLINE

MID-RISE WOOD PRODUCTSStrength graded, kiln dried

Cross Laminated Timber (CLT) Laminated Veneer Lumber (LVL)

Studs and Plates Glulam (GLT)Joists and Trusses

AS1720:CALCULATION

AS1684:DETAILING

LIGHT (STUD) FRAMESScaling up Residential Design

MORE OR STRONGER STUDS AT

LOWER WALLS

STANDARDFRAMING AT

UPPER WALLS

CROSS LAMINATED TIMBER (CLT)A “jumbo plywood”

DIAPHRAGM, LESS SPLITS,

DIMENSIONALSTABILITY

LAMINATED VENEER LUMBER (LVL)High strength&stiffness/weight ratio

FLOORCASSETTES,BRACING,3D TRUS

GLULAM (GLT)Flexible floorplans, aesthetics

3D TRUSSES,POST & BEAM,FLOOR SLABS

DIFFERENT SYSTEMSCAN BE COMBINED IN A PROJECT…

Light Frames

Post & Beam

Post-Tensioned

CLT, LVL, GLT…

CassetteFloor/Wall

FRAMES

PANELS

VOLUMES

PortalFrames

Unit, pod, shaft, stair..

...TO GET HARMONY

AND OPTIMSERESULTS.

RESIDENTIALOffsite assembly, onsite speed

Timelapse

COMMERCIALHybrid structure, optimal result

Timelapse

STUDENT ACCOMMODATIONMassive timber, passive house

SAFETY & EFFICIENCYDesign For Manufacturing and Assembling

STIFFER CORESfor slender buildings

OPEN FLOORPLANSfor larger grids / flexible use

CONTROL FLOOR DEPTHto limit building height

ACOUSTICS Timber is intrinsically quiet

HIGH DAMPING,

LOWFLANKING

DURABILITYA LOT OF EXPERIENCE

TERMITES

CORROSION

OF FASTENERS

DECAY

(ABOVE GROUND)BRISBANE

1913 & 2018

NCCCOMPLIANTBASED ONAS 1720+ EC5

ACRO-TIM Automated Calculation ROutines of mid-rise TIMber structures under combined wind and quake actions (VNA440-1718)

FREEASSISTANCE

TO ENGINEERSFOR MID-RISE

PROJECTS

STRUCTURAL DESIGNGuide and software

COST ENGINEERINGHow to cost timber structures

COMING SOON, WITH

A SUMMARYOF MAP’sDATA AND

EXPERIENCES

ZERO70%

TOTAL ON-SITE WASTE REDUCED BY

TIMBER WASTE GENERATED

ON SITE

WASTE GENERATED PER WEEK

Eurban, UK Lendlease, Vic Strongbuild, NSW

WASTE REDUCTIONIS VERY SIGNIFICANT

THE ONLY RENEWABLEBUILDING MATERIALS

Once turned into Engineered Wood Products, this equates to

970 m31-1.5 hrsLendlease, Melbourne

2,700 m33-4 hrsStrongbuild, Sydney

4,300 m35-6.5 hrsAtelier, Melbourne

1,700 m32-2.5 hrsMultiplex, Melbourne

11-15 m3/min

30-40 m3/min

Australiansoftwoodplantations(>1Mha) grow

HEALTHIER FOR OUR ENVIRONMENT

Wood is a “sink” for CO2 , with • low embodied energy and • low operation energy

Image: chrofi.com

https://www.woodsolutions.com.au

/articles/carbon-storage

Typically from lower blood pressure and heart rate, as demonstrated by clinical researches:• school children have less

stress and concentrate better (Austria)

• timber-built retirement villages promote tranquillity (UK, Finland)

• benefits in timber-based neurological clinics (Japan).

HEALTHIER FOR HUMANS

http://makeitwood.org/documents/doc-1501-

wood---nature-inspired-design-report-v3.pdf

Key findings (1,000 office workers):

• higher levels of satisfaction

• higher levels of concentration

• improved mood and productivity

• less sick leave

WELLNESS AND PRODUCTIVITY IN OFFICES

https://www.woodsolutions.

com.au/wood-at-work

- Different system options

- NCC 2019 changes

- Mid-rise Advisory Program

- Conclusion

OUTLINE

PERFORMANCE REQUIREMENTSOur Guidelines and Test Reports

OUR TDGsARE ALMOST

AN «INDUSTRY STANDARD»

• automatic sprinkler systems

• fire-protected structural timber (general or massive)

• non-combustible insulation

• cavity barriers (if applicable)

DTS PROVISIONS (2016)A direct pathway to approval

• automatic sprinkler systems

• fire-protected structural timber (general or massive)

• non-combustible insulation

• cavity barriers (if applicable)

DTS PROVISIONS (2016)A direct pathway to approval

< 75mm > 75mm

and glued

FIRE-PROTECTED TIMBERRequirements

> 75mm

and glued

< 75mm

GENERAL: 2x13mm FRPB (each side for walls, lower side for floors)

MASSIVE: 1x16mm FRPB (each side for walls, lower side for floors)

MANYALERNATIVE

LAY-UPSARE

POSSIBLE

NCC2019Another step forward

• Fire protected timber as DTS for all the Building Classes• Sprinklers for all Class 2&3 mid-rise buildings, regardless of

the construction material• With sprinklers, an increase in travel distances to fire exits,

from 6m to 12m (bigger footprint), for all building materials• The definition of Massive Timber now includes also “non-

chemically bonded” materials• Most sarking products now deemed “non combustible”.

- Different system options

- NCC 2019 changes

- Mid-rise Advisory Program

- Conclusion

OUTLINE

CODE,CRANE,

SEQUENCE,CONFLICTS,SYSTEMS...

THE MID-RISE ADVISORYFeasibility analysis

PROGRAM,DETAILS,

ACOUSTICS,COSTS...

THE MID-RISE ADVISORYCosting analysis

EXAMPLEBenchmarking a built project

Type Lay-up Depth Fire Acoustic

• Carpet• 2x 18mm MgOx Board• 15mm Plywood• 200mm Engineered Joist with

75mm Glasswool• Furring channel on resilient m.• 2x 16mm FRPB

330mm FRL90/90/90

Rw+Ctr: 64Lnw: 34

• Carpet• 200mm Concrete• 60mm Fiberglass insulation• Suspended steel grid• 13mm Plasterboard

330mm FRL90/90/90

Rw+Ctr: 64Lnw: 29

QUICKER TO INSTALL

=LOWER COST

EXAMPLEBenchmarking a built project

Type Lay-up Depth Fire Acoustic

• 2x 13mm FRPB• 90 x 45 stud• 20 mm gap• 90 x 45 stud• 2x 13mm FRPB

257mm FRL90/90/90

Rw+Ctr: 58

• 2x 13mm FRPB• 64mm Steel Stud• 11kg/m3 insulation• Gap (for columns)• 64mm Steel Stud• 13mm FRPB

300mm FRL90/90/90

Rw+Ctr: 59

INCREASE OF NET

SELLABLE AREA

2 YEARS OF MID-RISE ADVISORYNumbers (almost) tell the story

MOST PROJECTS ARE STILL

AT PLANNINGSTAGE

ALREADY 15 PROJECTSare being built or in tender

WOODUSED:

30,000 m3$38 Mil.

7 BUILT OR ON SITE

8 NOW IN TENDER

SOME TYPICAL FEATURESof a Mid-Rise project

• Urban infill (boundaries, shading)

• Height/shading constraints

• Eccentric core

• Cantilevers (balconies/floors)

• Voids, wall misalignements

• Extension over existing buildings

• Weak soils

• Acoustic/Fire integration

UNDERSTANDING MID-RISEDemo at Holmesglen TAFE

IMPROVE CONFIDENCE

OF SURVEYORS AND

BUILDERS

WITH A FIXED AND A

DISMOUNTABLECOMPONENT

• National advisory + R&D program focused on skills development

• Partnership across the whole building industry, based on existing and new “best practices”, that can maximise the results for both the partners and the community

PARTNERSHIPA flexible and efficient tool for the next stage

Activity ALL OPT

Advisory to design/development teams (feasibility, costing…) X

Focus on Institutions and Government initiatives (eg schools, social housing…) X

Improve off-site solutions, site safety and efficiency X

Develop Industry Standards and Codes of Practice X

Support education programs in collaboration with Universities & TAFEs X

Market Intelligence (planning reports, trend analyses…) X X

Accreditation/certification training programs/schemes X X

Tender Analysis and Value Management assessment X

Innovation, R&D and testing to develop company/shared IP X

Tailored staff training for partners (internship with the advisory team) X

ACTIVITIESA flexible mix with multiple benefits

ALL = Common activities shared by all the Partners. May involve external stakeholders.

OPT = Company-tailored, optional activities. May require confidentiality.

EXPECTED OUTCOMESwith prudent assumptions

JUST FOR MID-RISE,WE EXPECTA 20-30%GROWTH

PLUS THEGROWTH FOR ASSOCIATEDMATERIALS & SERVICES

- Different system options

- NCC 2019 changes

- Mid-rise Advisory Program

- Conclusion

OUTLINE

THE VALUE PROPOSITION OFTIMBER OFF-SITE SYSTEMS

THE BESTSOLUTION FOR

THE RIGHTOPPORTUNITY

BUILD OUR CITIES IN TIMBER ?IT’S HAPPENING…

HOW WILL TIMBER STRUCTURES BE USED IN YOUR NEXT PROJECT ?