Mass Timber: Knowing Your Options

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1 Mass Timber: Knowing Your Options Presentation to the Architectural Institute of BC & the American Institute of Architects 24 October, 2013 Ian Boyle P.Eng., Struct.Eng., P.E., S.E. Bernhard Gafner P.Eng., MIStructE, C.Eng., Dipl.Ing. FH/STV Vancouver Edmonton Frankfurt

2 Fresh Thinking Holistic Design Vancouver Edmonton Frankfurt

3 Outline Overview Design process + case studies Future Useful tools

4

5 Overview Definition of Mass Timber Structural Building Systems Products Sizes and Design Characteristics Comparison

6 Mass timber construction uses large and ideally prefabricated wood for wall, floor, and roof construction. [ ] Because of their high strength and dimensional stability, they can be used as alternatives to concrete, masonry and steel in many building types. Quote from MassTimber.com

7 Overview Building Systems

8 Building Systems Light Wood Frame (Stick Frame)

9 Building Systems Post + Beam (with Mass Timber or light wood frame floors)

10 Building Systems Mass Timber (100%)

11 Building Systems Institutional Residential Light Wood Frame Post + Beam Mass Timber (100%) Mass Timber Floors (and Shearwalls) Mass Timber Walls and Floors

12 Building Systems Institutional Residential Light Wood Frame Post + Beam Mass Timber (100%) Mass Timber Floors (and Shearwalls) Mass Timber Walls and Floors

13 Overview Products

14 Overview NLT Nail Laminated Timber

15 NLT Alternative Names: nailed timber, nail-up, edge-lam, brettstapel System: regular framing members (2x, 3x) on edge + fastened together Suppliers: a good carpenter Basic Info: - material/fibre used: S-P-F / Douglas Fir or any other - harvesting cycle: 80 years - floor, roof (and wall) with Plywood sheathing for lateral loads

16 NLT Comments: Non-standardized panel product

17 NLT Comments: Non-standardized panel product - base material covered with grading rules

18 Courtesy of Nicola Log Works

19 Courtesy of Nicola Log Works

20 NLT Comments: Non-standardized panel product Specifications

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22 NLT Comments: Non-standardized panel product Specifications Requires care with regards to swelling / shrinkage perpendicular to grain

23 NLT

24 NLT Samuel Brighouse Elementary Perkins + Will Canada

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27 NLT SFU UniverCity Childcare Hughes Condon Marler Architects

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29 Overview Products

30 Overview GLT Glue Laminated Timber

31 GLT Alternative Names: System: Suppliers: Basic Info: glued edge laminated timber, edge laminated timber, edge-lam glulam beams on edge Structurlam (Penticton), Western Archrib (Edmonton), Nordic (Montreal) or any other glulam supplier - material/fibre: S-P-F / D. Fir / Black Spruce / - harvesting cycle: 80 years - adhesive: Phenol Resorcinol (black) or Melamine (clear) - adhesive amount: 1% by weight - floor, roof (and wall) with Plywood sheathing for lateral loads

32 GLT Comments: Standardized product

33 GLT

34 GLT Comments: Standardized product Requires care with regards to swelling / shrinkage perpendicular to grain

35 GLT

36 GLT Comments: Standardized product Requires care with regards to swelling / shrinkage perpendicular to grain Glulam beam GLT

37 GLT

38 GLT

39 GLT Slave Lake Government Centre Manasc Isaac Architects

40

41 GLT Kin Centre Arena Complex PBK Architects

42

43 Overview Products

44 Overview CLT Cross Laminated Timber

45 CLT Alternative Names: System: Suppliers: Basic Info: cross laminated timber, x-lam cross laminated timber panels 2x members glued together Structurlam (Penticton, BC), Nordic (Montreal, QC), Smartlam (Whitefish, MT) - material/fibre: S-P-F / Black Spruce - harvesting cycle: 80 to 100 years - adhesive: Polyurethane - adhesive amount: 4% by weight - floor, roof and wall with joints detailed for lateral loads

46 CLT Comments: Standardized product

47 CLT

48 CLT Comments: Standardized product Dimensionally very stable

49 CLT

50 CLT Comments: Standardized product Dimensionally very stable Two directional span capabilities

51 CLT

52 CLT Wayne Gretzky Centre Courtesy of Structurlam Products

53 Courtesy of Structurlam Products

54 CLT District 03 Courtesy of Nordic

55 Courtesy of Nordic

56 Overview Products

57 Overview Solid LSL Laminated Strand Lumber

58 Solid LSL Alternative Names: System: Suppliers: n/a laminated strand lumber (timber strands glued together) *Weyerhauser, Louisiana Pacific, Basic Info*: - material/fibre: Aspen - harvesting cycle: 60 to 70 years - adhesive: MDI - Isocyante - adhesive amount: 6% by weight - floor, roof and wall with joints detailed for lateral loads (limited thicknesses!)

59 Solid LSL Comments: Standardized product

60 Solid LSL

61 Solid LSL Comments: Standardized product Dimensionally relatively stable

62 Solid LSL

63 Solid LSL Gilmore SkyTrain Station Perkins + Will Canada

64

65 Solid LSL False Creek Community Centre Henriquez + Partners Architects

66 Overview Products

67 Overview Solid LVL Laminated Veneer Lumber

68 Solid LVL Alternative Names: System: Suppliers: Microlam, Versalam laminated veneer lumber (veneers stacked & glued together) Louisianan Pacific*, Weyerhaeuser, Boise Cascade, West Fraser, Metsawood Basic Info*: - material/fibre: D. Fir - harvesting cycle: 80 years - adhesive: Phenol Formaldehyde - adhesive amount: 7% by weight - floor, roof and wall with joints detailed for lateral loads (limited thicknesses!)

69 Solid LVL Comments: Standardized product

70 Solid LVL

71 Solid LVL Comments: Standardized product Dimensionally relatively stable (can add cross layers)

72 Solid LVL

73 Solid LVL

74 Solid LVL

75 Overview Products

76 Overview Brisco Fine Line LVL Laminated Veneer Lumber

77 Brisco Fine Line LVL Alternative Names: System: Suppliers: Basic Info: N/A laminated veneer lumber (veneers stacked & glued together) Brisco - material/fibre: D. Fir - harvesting cycle: 80 years - adhesive: Phenol Formaldehyde - adhesive amount: 7% by weight - floor, roof and wall with joints detailed for lateral loads

78 Brisco Fine Line LVL Comments: Standardized product

79 Brisco Fine Line LVL

80 Brisco Fine Line LVL Comments: Standardized product Dimensionally relatively stable

81 Brisco Fine Line LVL Courtesy of Brisco

82 Courtesy of Brisco

83 Courtesy of Brisco

84 Courtesy of Brisco

85 Overview Products

86 Overview WCC Wood Concrete - Composite

87 WCC Alternative Names: System: Timber Concrete Composite Solid wood panel at bottom, concrete over top (acting as one unit) Base layer can be nearly any solid wood panel Connector supplied by wood panel supplier or general contractor Free, stiff and strong diaphragm

88 Overview OTHERS PSL (Parallam) Solid Decking / T&G Logs

89 Sizes and Design Characteristics

90 Sizes and Design Characteristics Depth

91 Sizes and Design Characteristics Width

92 Sizes and Design Characteristics Length 16m (50 ) to 20m (66 ) basic transportation length

93 Comparison

94 Comparison Stiffness Design is mostly governed by deflection (stiffness) and / or vibration

95 Stiffness DARK COLOR = DEPTH LIGHT COLOR = RELATIVE STIFFNESS

96 Comparison Fire In general, all products have a similar char rate Approximately 38mm 44mm / 60 minutes - Check with Code Consultant Be careful with CLT if required rating is between 45 and 90 minutes - Most of the time it s not a problem for panels with 5+ layers

97 Fire

98 Fire

99 Fire

100 Practical Considerations

101 Practical Considerations Location

102 Location Local trades Distance to suppliers (LEED, Living Building Challenge) Dry vs. wet climate Funding Season of construction (winter prefab)

103 Practical Considerations Size of a Project

104 Size of Project Sole Sourcing / Suppliers capacity Sequencing on Site / Staging Procurement

105 Practical Considerations Procurement

106 Procurement Design - Bid - Build Construction Management Design Build?

107 Depth 6m FLOOR SPAN 220mm 260mm 5m FLOOR SPAN 160mm 200mm 4m FLOOR SPAN 110mm 150mm DEPTHS ACCOUNT FOR VIBRATION

108 Practical Considerations Decide Early

109 Decide Early Use the product to its fullest extent possible Work with supplier Economical solution

110 Practical Considerations BIM

111 BIM CNC fabrication requires 3-D files Architectural 3-D models (REVIT) are not compatible with fabrication models 3-D shop drawing model including connections Successful projects using prefabricated systems rely heavily on integrated design (including fabricator & installer) and 3-D computer models to detect potential conflicts and fabrication/installation issues early in the process

112 Practical Considerations Movement

113 Practical Considerations Movement NLT, GLT: 0.25% change in dimension for each 1% change in moisture content 12%MC when installed 14%MC during construction 50mm swelling in 10m *38mm each 6m (1 ½ each 20 )

114 Practical Considerations Connections Wall Floor Wall Wall Wall Foundation

115 Practical Considerations Connections

116 Practical Considerations Connections Galvanized or otherwise protected steel parts and fasteners to deal with moisture:

117

118 Mass Timber Design Process Case studies as a means to introduce concepts, uses and challenges: Case 1: Athabasca University Academic Research Ctr. Case 2: Mountain Equipment Co-op Head Office

119 Case Study One Athabasca University

120 Design

121

122

123

124

125

126

127 Nail Laminated

128 Nail Laminated Standard & locally available Prefabrication Aesthetics Low-skilled labour Integrates mechanical & electrical systems

129

130 Tender & Construction

131

132

133

134

135

136

137

138

139 Case Study Two Mountain Equipment Co-op

140

141 Design

142

143

144

145

146 NLT CLT

147 Tender 2x8 solid wood NLT panels 2x10 panels at snow drift zones and green roof Random stack pattern for long span ½ plywood and topping One hour fire rating (including char reduction)

148 Construction

149

150

151

152

153

154

155

156

157

158

159 The Future of Mass Timber

160 The Future Innovative Products + Applications

161 The Future Innovative Products + Applications

162 The Future Procurement TIME SAVINGS TRADITIONAL DESIGN SHOP DRAWINGS FABRICATION INSTALLATION DESIGN ASSIST DESIGN SHOP DRAWINGS FABRICATION INSTALLATION DESIGN DEVELOPMENT CONTRACT DOCUMENTS TENDER + CONSTRUCITON PRE-TENDER

163 The Future Tall(er) Wood Buildings

164

165 CONCEPT App Idea calculator for architects Member calculator Material gallery

166 CONCEPT App Depth Calculator

167 CONCEPT App Depth Calculator Results

168 CONCEPT App Material Gallery

169 CONCEPT App Material Gallery

170 CONCEPT App Available on itunes or visit for more information

171 Thank You Vancouver Edmonton Frankfurt

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