Lateral Performance of Nonsymmetric Diagonal-Braced Wood Shear Walls
Publication: Journal of Structural Engineering
Volume 135, Issue 2
Abstract
The lateral performance of structurally nonsymmetric diagonal-braced wood shear walls used in post-and-beam timber buildings was investigated with laboratory testing and computer modeling. Monotonic and reversed cyclic tests were performed to study the capacities of a total of eight full-scale shear walls, with and without gypsum wallboard sheathing. Significant increases of strength, stiffness, and energy dissipation were observed in the shear walls with the additional gypsum wallboard sheathing. An efficient mechanics-based wood shear wall model was then introduced to represent the hysteretic load–drift behavior of these diagonal-braced walls. The predicted seismic response of the model agreed very well with the shake table test results of a simple one-story post-and-beam structure, making it possible to develop, in future research, structural models for more-complicated post-and-beam buildings with good computational efficiency and accuracy.
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Acknowledgments
The writers would like to acknowledge the Coast Forest and Lumber Association of Canada for supporting this work with a research grant. The writers would also like to thank Dr. Ricardo O. Foschi for invaluable comments and suggestions when preparing this paper.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 2 • February 2009
Pages: 178 - 186
Copyright
© 2009 ASCE.
History
Received: Dec 17, 2007
Accepted: Jun 27, 2008
Published online: Feb 1, 2009
Published in print: Feb 2009
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