David Moses of Moses Structural Engineers showcases the latest innovations of building design using cross-laminated timber panels. CLTs are allowing new applications for wood design including multi-storey structural elements, with the benefit of faster build times, less waste, and sequestered carbon.

1. Cross-Laminated Timber:
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Revolutionizing Wood Use in Construction
David Moses, Principal
PhD, PEng, PE, LEED® AP
Moses Structural Engineers Inc.

2. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

3. Precision Wood Machining
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Structurlam Products Ltd., Penticton, BC

4. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

5. Cross-laminated Timber (CLT)
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• Solid wood panel
• Now available in Canada
• Many applications
• Better strength
• Better fire resistance
• Dimensionally stable
Source: FPInnovations

6. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Carbon Sequestration
Source: “Tackle Climate Change”

7. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: KLH & Waugh Thistleton Architects

8. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

9. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

10. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

11. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

12. Vancouver 2010 Oylmpics
Whistler, BC
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• Austria House – 1st use of CLT
• All prefabricated and site installed
• 1st Canadian Passive house

13. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Austria House

14. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Austria House

15. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Austria House

16. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
R&D and REVIT models

17. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

18. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Austria House

19. Murray Grove Building
London, England
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Waugh Thistleton
Architects

20. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Thistleton Architects
Courtesy: Waugh

21. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Waugh Thistleton Architects

22. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Architects
Courtesy: Waugh Thistleton

23. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Architects
Courtesy: Waugh Thistleton

24. Canadian Suppliers
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• Structurlam Products Ltd.
• Nordic Wood Structures
• CST Innovations
• KLH Element
Let’s look at examples from West to East

25. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Structurlam Products Ltd.

26. Dowling Residence, BC
DGBK Architects, Equilibrium Consulting
• 3-4 storey
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• 4700 sq.ft.
• 1st Canadian CLT structure on concrete base

27. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

28. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
From: BC WoodWorks! case study

29. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
From: BC WoodWorks! case study

30. Elkford Lake Community Centre, BC
Douglas Sollows Architects
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Associated Engineering
• 18,000 sq.ft.
• Max panels 10’x40’ x 12” thick
• CLT : Structurlam Products Ltd.

31. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Source: District of Elkford website

32. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Structurlam Products Ltd.

33. Video
Elkford Lake Community Centre, BC
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
http://www.youtube.com/ahc1893

34. UBC Earth Sciences Building, BC
Architect: Busby Perkins + Will
Structural Engineer: Equilibrium Consulting Inc.
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• 5 storeys
• Group A, Div.2 assembly occupancy
• Peer review & code equivalency
• CLT & glulam : Structurlam Products Ltd.

35. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Structurlam Products Ltd.

36. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Structurlam Products Ltd.

37. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Structurlam Products Ltd.

38. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Structurlam Products Ltd.

39. UBC Bioenergy R&D, BC
McFarland Marceau Architects Ltd.
Structural Engineer: Equilibrium Consulting Inc.
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• 20,000 sq.ft.
• Biogas steam plant for UBC campus
• CLT walls and roof deck on glulam rigid frame
on concrete base
• CLT : CST Ltd.

40. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
From: BC WoodWorks! case study,
McFarland Marceau Architects rendering

41. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: McFarland Marceau Arch + Equilibrium

42. Community Centre, St.Prime, Quebec
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• 1st CLT project in Quebec – June 2011
• Modern post and beam
• CLT panels 55’ long, 4” thick
• Supplier: Nordic Wood Structures

43. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

44. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

45. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

46. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

47. Durocher College Atrium
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• Built August 2011
• 36’ long panels
• Note the screws
• Supplier: Nordic Wood Structures

48. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

49. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

50. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Courtesy: Nordic Wood Structures

51. Other current projects - Quebec
• Labaie Arena – 125’ hybrid CLT trusses
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• Desbiens Retirement Home – 3-storey Oct. 2011
• Chibougamau Condos – 4-storey Fall 2011
Courtesy: Nordic Wood Structures

52. Cross-laminated Timber (CLT)
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Introductory Article (pdf) at:
www.mosesstructures.com

53. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
www.FPInnovations.ca
And Plant Qualification Standard

54. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.

55. Rules of Thumb
October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
• CLT design has the ‘feel’ of concrete
• Floor span-to-depth ratios 20-30
• Roof span-to-depth ratios 30-40
• Deflection and vibration control design(not strength)
• Engineers must consider creep and rolling shear
• Effective stiffness increases for longer spans
Courtesy: Equilibrium Consulting Inc.

56. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Source: Structurlam Products Ltd.
Preliminary sizing charts

57. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.
Building in London
Source: Stora Enso website, Austria

58. October 19, 2011 SBC Breakfast – Moses Structural Engineers Inc.