NEHRP Consultants

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Task Orders : 31-35
Task Orders : 36-



Applied Technology Council


Consortium of Universities for Research in Earthquake Engineering

Funded by the
National Institute of
Standards and Technology

Projects : Task Order 36

Development of Technical Brief on Structural Design Issues:
Seismic Design of Structural Wood Diaphragm Systems


The primary objective of this task was to produce a new techbrief addressing the analysis, design, detailing, and construction of structural wood roof, floor and wall diaphragm systems for use as lateral load-resisting systems in buildings in areas of moderate to high seismic activity.

This techbrief synthesized model building code requirements and leading practitioner-recognized techniques, resulting in clear and concise analysis, design, and construction guidance on structural wood diaphragm systems for use by practicing structural engineers.

Project Director:

• Kelly E. Cobeen (Wiss, Janney, Elstner Associates, Inc.)
• J. Daniel Dolan (Washington State University)
• Douglas Thompson (STB Structural Engineers, Inc.)
• John W. van de Lindt (Colorado State University)

Project Technical Committee members:

• Andre Filiatrault (University at Buffalo, SUNY)
• Philip Line (American Wood Council)
• Gary L. Mochizuki (Simpson Strong-Tie)
• Tom C. Xia (DCI Engineers)

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last updated 12.17.14