UMass Design Building: Timber...
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2/2/2016 1 UMass Design Building: Timber Talk Dr. Peggi Clouston, Ph.D., P. Eng. Associate Professor Building and Construction Technology Program, UMass [email protected] UMass Design Building, Amherst MA Image credit : Leers Weinzapfel Associates UMass Design Building Thursday 1/21/16 First structure of its kind in the US! 86,000 sq. ft. institutional building Glulam. CLT, wood-concrete composites, hybrid trusses Go UMass!
Transcript of UMass Design Building: Timber...
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UMass Design Building: Timber TalkDr. Peggi Clouston, Ph.D., P. Eng.Associate Professor
Building and Construction Technology Program, [email protected]
UMass Design Building, Amherst MA
Image credit : Leers Weinzapfel Associates
UMass Design Building
Thursday 1/21/16
First structure of its kind in the US! 86,000 sq. ft. institutional building Glulam. CLT, wood-concrete composites,
hybrid trusses Go UMass!
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What is timber engineering? “high-tech”
Prince George Airport, British ColumbiaPhoto credit: McFarlane Green Biggar (MBG) Architects
“bold and beautiful”
“revolutionary”
“eco-friendly”
“new”
Tallest mass timber building in North America at 27m high
Tall Timber is ‘in’
Wood Innovation and Design Center (WIDC) British Columbia, CAPhoto credit: McFarlane Green Biggar (MBG) Architects
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World wide competition
Forte Building Melbourne, Australia
Tallest in the world at 32m high Soon to open at 49m high
Treet BuildingBergen, Norway
TIMBER TOWER PROJECT by SOM
42 storiesproposed!
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Primary drivers:
Sustainability&Innovation
“Wood can help to earn points in categories typically found in green building rating systems— including certified wood, recycled/reused/salvaged materials, local sourcing of materials, waste minimization,
indoor air quality, advanced building techniques and skills and life cycle impacts” …
Quote source: ReTHINK Wood
WRNS Studio, San Francisco
Green Building Awards
Office Building for GlaxoSmithKline Inc., QuebecNordic CLT. Photo credit © Stéphane Groleau
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Sustainability and wood
• Wood is the only major renewable building material
• Wood is recyclable and triggered biodegradable
• Wood products store carbon
• Life Cycle Assessment (LCA) studies show wood to have a comparatively small environmental footprint
• Wood creates a healthy indoor environment
Carbon sequestration and storage
• Wood and wood products store carbon until they burn or biodegrade
Photo credit: Neuweiser (creative commons)
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Image courtesy of Joseph Mayo of Mahlum | Architects Inc.
Wood products capture carbon
Life Cycle Assessment (LCA) Study
Image source: ReTHINK WOOD® - Building Green with Wood (Module 2)
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Image source: Prof. DDI Michael Flach
Healthy Indoor Environment
• Humidity control
• Stress reducing effects:
http://woodworks.org/wp-content/uploads/Wood-Human-Health11.pdf
• Advanced adhesives w/ minimal to no off-gasing
UMass Design Building
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Primary drivers:
Sustainability&Innovation
High-tech wood
Glulam
Cross Laminated Timber
Parallel Strand Lumber (a type of SCL)Wood Concrete Composites
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Art Gallery of Ontario, TorontoPhoto credit: Thomas Mayer
• Used for over 100 years• Covered in IBC• Manufacturing and design info. by AITC • Minimum X-sections ~6”x8” (columns), ~5”x10” (beams)• Spans up to 60’
Glulam
L1 - Dense
L2
L2
L3
compressionside
tensionside
The secret behind Glulam strength
• Defects are dispersed• Layup is engineered
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Design Building Glulam Column Installation 1/26/16
Earth Sciences Building at the University of British Columbia, Vancouver. Source: Structurlam Products, LP
Cross-laminated timber (CLT)
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• 3/5/7 layers• ≥ 4in thick as floors and ≥ 3in as roofs• panels up to 12ft by 60ft• Adhesives in accordance with
ANSI/APA PRG 320
Image source: KLH LTD
• Built in 10 weeks by five workers!
Forte, Melbourne -10 story CLT structure
Image source: KLH LTD
Video:https://www.youtube.com/watch?v=cqXygHyU5ws
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Bertsche connector
HBV system
SFS Intec VB Screws
Photo credit : SFS Intec
Image: Bertsche System, GmbH
Wood-concrete composites
Design Building floors
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UMass WCC research
Failure line
Steel failure
Benefit of composite action
Publications
❖ Clouston P, Schreyer A. 2012.“Experimental Evaluation of ConnectorSystems for Wood Concrete CompositeFloor systems in Mill BuildingRenovations.” International Journal of theConstructed Environment, Volume 2,Issue 1, pp.131-144.
❖ Clouston P, Schreyer A. 2008. “Designand Use of Wood-Concrete Composites”.ASCE Practice Periodical on StructuralDesign and Construction, 13(4), pp. 167-175
❖ Clouston P, Bathon L, Schreyer A. 2005.“Shear and Bending Performance of aNovel Wood-Concrete CompositeSystem”. ASCE Journal of StructuralEngineering. 131(9), pp.1404-1412
❖ Clouston P, Civjan S, Bathon L. 2004.“Experimental Behavior of a ContinuousMetal Connector for a Wood-ConcreteComposite System”. Forest ProductsJournal. 54(6) pp. 76-84
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Passive Fire Protection
Durability
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View from North Pleasant Street
Image credit : Leers Weinzapfel Associates
View of atrium and exhibit space
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Image credit : Leers Weinzapfel Associates
The south wing in a day…
