Fast + Epp structural engineers Tanya Luthi, P.E.

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1 Fast + Epp structural engineers Tanya Luthi, P.E. Seattle Wood Solutions Fair April 25, 2017 Disclaimer: This presentation was developed by a third party and is not funded by WoodWorks or the Softwood Lumber Board.

2 Copyright Materials 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. Fast + Epp 2017

3 The Wood Products Council is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES), Provider #G516. Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-aia members are available upon request. 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. This course is registered with AIA CES

4 Mass timber structural framing systems have high strength-to-weight ratios, are dimensionally stable, and are quickly becoming systems of choice for sustainably minded designers. This presentation will provide a detailed look at the structural design processes associated with a variety of mass timber products, including glued-laminated timber (glulam), cross-laminated timber (CLT), and nail-laminated timber (NLT). Applications for the use of these products in gravity force-resisting systems under modern building codes will be discussed. Other technical topics will include use of mass timber panels as two-way spanning slabs, connection options and design considerations, and detailing and construction best practices.

5 At the end of the this course, participants will be able to: Discuss mass timber products and building systems and their possibilities as structural framing. Compare structural properties and performance characteristics of mass timber products and review their unique design considerations. Review structural design steps for members and connections in common mass timber framing systems. Highlight structural detailing best practices to address items such as shrinkage and expansion, load path continuity, and speed of construction.

6 + Vancouver Canada + Frankfurt Germany + New York USA + Seattle USA + Edmonton Canada

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9 Illustration Credit: Geoff s Woodwork

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19 nail-laminated timber (NLT) glulam panels (GLT) plank decking structural composite lumber (LSL, LVL) CLT wood-concrete composites

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22 Image Credit: Michael Elkan Architect: Perkins + Will

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33 Image Credit: CadMakers Photo Credit: Seagate Structures

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35 Photo Credit: Seagate Structures

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38 Image Courtesy of Holmes Fire

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42 shear walls Photo Credit: Equilibrium Consulting Photo Credit: Sissi Slotover-Smutny

43 rocking walls rocking moment frames Illustration Credit: PresLam

44 wood braced frames Photo Credit: Equilibrium Consulting hybrids (steel or concrete LFRS)

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49 Photo Credit: Reiulf Ramstad Arkitekter

50 Photo Credit: Cast Connex Photo Credit: Ben McMillan

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52 Photo Credit: Simpson Strong-Tie

53 Photo Credits: Fire Tower Engineered Timber

54 Photo Credit: TimberPlates.com Photo Credit: VicBeam Photo Credit: Uihlein-Wilson Architects

55 Photo Credits: Shigeru Ban Architects

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57 Image Credit: My-Ti-Con

58 Image Credits: My-Ti-Con

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60 Photo Credit: TiComTec Photo Credit: TiComTec

61 Photo Credits: KNAPP

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65 Photo Credit: Seagate Structures

66 Δ1 Δ2 TIIMBER COLUMNS CONCRETE CORE TIIMBER COLUMNS Δ1 (CONCRETE) Δ2 (TIMBER) = SHRINKAGE + ELASTIC SHORTENING + CREEP = SHRINKAGE + ELASTIC SHORTENING + CREEP + JOINT SETTLEMENT

67 60 50 Deflection (mm) Dead Load Elastic Live Load Elastic Longitudinal Shrinkage Creep and Joint Settlement Total

68 SHIMS

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71 partially threaded screws (intermittent) ring shank nails (frequent) continuous plywood spline SECTION

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78 PLAN VIEW

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83 Photo Credits: Bing Thom Architects

84 Photo Credits: Bing Thom Architects

85 Image Credits: StructureCraft Builders

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89 Photo Credit: PUBLIC

90 Photo Credits: SFS Intec

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102 This concludes The American Institute of Architects Continuing Education Systems Course Contact Us: 11 th Floor, 41 East 11 th St. New York, NY Tel: