UMass Design Building

Transcription

1 UMass Design Building: Timber Talk Dr. Peggi Clouston, Ph.D., P. Eng. Associate Professor Building and Construction Technology Program, UMass UMass Design Building, Amherst MA UMass Design Building First structure of its kind in the US! 86,000 sq. ft. institutional building Glulam. CLT, wood-concrete composites, hybrid trusses Go UMass! Thursday 1/21/16 Image credit : Leers Weinzapfel Associates 1

2 2/2/2016 What is timber engineering? eco-friendly high-tech bold and beautiful revolutionary new Prince George Airport, British Columbia Photo credit: McFarlane Green Biggar (MBG) Architects Tall Timber is in Tallest mass timber building in North America at 27m high Wood Innovation and Design Center (WIDC) British Columbia, CA Photo credit: McFarlane Green Biggar (MBG) Architects 2

3 World wide competition Forte Building Melbourne, Australia Treet Building Bergen, Norway Tallest in the world at 32m high Soon to open at 49m high 42 stories proposed! TIMBER TOWER PROJECT by SOM 3

4 Primary drivers: Sustainability & Innovation Green Building Awards WRNS Studio, San Francisco Office Building for GlaxoSmithKline Inc., Quebec Nordic CLT. Photo credit Stéphane Groleau 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 4

5 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 Photo credit: Neuweiser (creative commons) Wood and wood products store carbon until they burn or biodegrade 5

6 Wood products capture carbon Image courtesy of Joseph Mayo of Mahlum Architects Inc. Life Cycle Assessment (LCA) Study Image source: ReTHINK WOOD - Building Green with Wood (Module 2) 6

7 Healthy Indoor Environment Humidity control Stress reducing effects: Advanced adhesives w/ minimal to no off-gasing Image source: Prof. DDI Michael Flach UMass Design Building 7

8 Primary drivers: Sustainability & Innovation High-tech wood Glulam Cross Laminated Timber Wood Concrete Composites Parallel Strand Lumber (a type of SCL) 8

9 Glulam 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 Art Gallery of Ontario, Toronto Photo credit: Thomas Mayer The secret behind Glulam strength Defects are dispersed Layup is engineered L2 compression side L3 tension side L2 L1 - Dense 9

10 Design Building Glulam Column Installation 1/26/16 Cross-laminated timber (CLT) Earth Sciences Building at the University of British Columbia, Vancouver. Source: Structurlam Products, LP 10

11 Image source: KLH LTD 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 Forte, Melbourne -10 story CLT structure Image source: KLH LTD Built in 10 weeks by five workers! Video: U5ws 11

12 Wood-concrete composites Bertsche connector SFS Intec VB Screws Photo credit : SFS Intec Image: Bertsche System, GmbH HBV system Design Building floors 12

13 UMass WCC research Failure line Steel failure Benefit of composite action Publications Clouston P, Schreyer A Experimental Evaluation of Connector Systems for Wood Concrete Composite Floor systems in Mill Building Renovations. International Journal of the Constructed Environment, Volume 2, Issue 1, pp Clouston P, Schreyer A Design and Use of Wood-Concrete Composites. ASCE Practice Periodical on Structural Design and Construction, 13(4), pp Clouston P, Bathon L, Schreyer A Shear and Bending Performance of a Novel Wood-Concrete Composite System. ASCE Journal of Structural Engineering. 131(9), pp Clouston P, Civjan S, Bathon L Experimental Behavior of a Continuous Metal Connector for a Wood-Concrete Composite System. Forest Products Journal. 54(6) pp

14 Passive Fire Protection Durability 14

15 View from North Pleasant Street View of atrium and exhibit space Image credit : Leers Weinzapfel Associates 15

16 16

17 17

18 18

19 19

20 20

21 21

22 22

23 23

24 24

25 The south wing in a day Image credit : Leers Weinzapfel Associates 25