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Fort Building australias First timBer HigHriseWood Solutions Presentation Atlanta Conference 6th February 2013
tHe Wood Products council
is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.
Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the
presentation without written permission of the speaker is prohibited.
The Wood Products Council 2013
At the end of this program, participants will be able to:
1. Learn how cross laminated timber is challenging current building practices to create buildings that are faster to erect and better for the environment.
2. Evaluate the attributes of CLT that can reduce a buildings carbon footprint
3. Understand how the use of CLT can significantly reduce the typical construction schedule of a mid-rise building
4. Learn how CLT buildings contribute to sustainable communities.
our international FootPrint
Established in 1958
Creating innovative and sustainable property and infrastructure solutions
Operate in 4 key regions Australia, Asia, America and EMEA
Over 17,000 employees
Completed over 10,000 projects worldwide
Over AUD$11.8 billion funds under management*
Market capitalisation of AUD$4.1 billion*
* as at 31 December 2011
EUROPE, MIDDLE EASt AnD AFRICA (EMEA)
dick dusseldorP, lend lease Founder 1973
The time is not far off when companies will have to justify their worth to society, with greater emphasis being placed on environmental and societal impact than straight economics.
green Buildings & sustainaBility innovation key commercial drivers in tHe market
Corporations Wishing to
Compete for Govt tenders Government
Green Lease Requirements
Investor & Community Valuetenant
lend lease & cross laminated timBer
Lend Lease are assessing the viability of utilising CLT to deliver select projects across their portfolio. The viability of CLT will rely on:
Economic procurement and importation of timber and/or establishment of a local timber supply and production facility.
Provision of a cost effective alternative to conventional structural solutions.
Resolution of technical issues design & delivery.
WHy cross laminated timBer?
Original driver: alternative solution for North Wharf (Vic Harbour) to reduce in ground costs.
Offers an opportunity to commercialise sustainability.
Envisaged shorter construction times to provide more opportunity for development feasibilities to meet threshold requirements.
Reduced tolerances facilitating off-site manufacture.
Detailed technical due diligence and market research to proof the CLT business case between 2009-2011.
Culminating in design & delivery of Fort as the pilot project for utilising CLT.
If the 19th century was the century of steel, & the 20th the century of concrete, then the 21st century is about engineered timber
Alex de Rijke, Director of dRMM
WHat is clt?
WHat is cross laminated timBer?
Planks of kiln-dried, finger-jointed spruce are sorted and cut into sheets of up to 16.5m by 2.95m.
The sheets are then stacked and glued under high pressure in perpendicular layers.
The process involves a high-pressure bonding system which allows the use of polyurethane adhesive in the boards solvent-free and formaldehyde-free.
Crosswise glueing at high pressure reduces the woods expansion and shrinkage to an insignificant level.
The panels are cut and processed CNC technology, resulting in excellent dimensional stability, both in overall panel size and for structural openings.
construction using cross laminated timBer
The CLT panels form a cellular structure of timber load bearing walls with timber floor slabs.
The solid wood panels are used as plate, wall & diaphragm members.
Joints are secured with screws & angled connection plates.
timBer as a material
Timber is the only renewable structural building material of scale
Forests act as a carbon sink - each tonne of CLT has sequestered ~1.6 tonnes of CO2 (~0.5tonnes of carbon locked-in)
Timber has the lowest energy consumption of any building material of scale across its life cycle
Sourced from sustainably managed forests
Reduced high risk work (eg work at heights). Elimination of injuries associated with formwork and reinforcing
Better work environment with less dust, less vibration and noise and less obstructions (no propping), thus reducing the impact of construction and disruption on local communities
Fewer operatives on site and for a reduced period of time
Sustainably sourced timber is the only carbon neutral structural option 1m of timber stores 0.25t of carbon
Timber has better thermal performance than reinforced concrete (reducing dependence on synthetic carbon based insulation)
The production process generates zero waste
Reduces fresh water consumption compared to reinforced concrete (up to 30 times less per m3)
Enhances Indoor Environment Quality and positive effects of timber environment (zero VOCs)
Reduces pollution on site i.e. noise, dust and contamination of water (eutrophication reduced by 75%)
Reduces the deliveries to site compared to reinforced concrete (up to 7.5 times less)
20% of the weight of the conventional structure
Reduces foundations due to lighter-weight construction as compared to reinforced concrete
Assists with poor ground conditions of sites such as Victoria Harbour
Reduced Preliminary & Supervision costs due to speed and efficiency of the construction methodology
Savings in follow-on trades as the material is easier to work with than concrete - conduits are pre-cut and the panels are flush fitted
Reduced holding costs
High precision and quality control leading to reduction in long term maintenance costs
Further step change efficiency improvements in conventional construction are very limited
Undertaking a CLT pilot project will verify the step-change improvements that can be expected from CLT
The pilot project will allow Lend Lease to identify areas for optimisation of the construction process which may lead to further significant efficiency improvements and project savings
Construction productivity & efficiency improved as compared to reinforced concrete
The use of BIM from design to manufacture and construction enhanced
Up-skilling of labour force both onsite and in the offsite manufacturing process s
WHy is emBodied carBon imPortant
tHe Focus on emBodied carBon is increasing
As reductions in operational carbon are achieved, embodied carbon is forming a higher percentage of a buildings overall co2 impact
cradle to gate
gate to site
end of life
clt BeneFits 21 reasons to use Wood Sustainable Speed of construction Precise Quality Control Lighter than masonry / concrete Transportable / storable Continuous work patterns Mass not frame Dry, clean, non-toxic Simple site procedures Good in a fire Flexible - easily changed on site Services integrated offsite
Structure can be the finish Strong and durable but can be
replaced if damaged Warm - own thermal properties
means less insulation Interesting tactile-flat surfaces Safe - non allergic & healthy to
inhabit Color - intrinsic colours, changed
simply Compatible with other materials Has aura, smells great, embodies
qualities of scale and time Alex de Rijke, Director of dRMM
clt track record
groWtH oF clt usage in euroPe
Fort Project used 1,000m3 oF clt