Modeling Force Transfer around Openings in Wood-Frame Shear Walls
Publication: Journal of Structural Engineering
Volume 138, Issue 12
Abstract
This paper presented a modeling study on force transfer around openings (FTAO) in wood-frame shear walls detailed for FTAO. To understand the load transfer in the walls, this study used a finite-element model WALL2D, which is able to model individual wall components, including framing members, sheathing panels, oriented panel-frame nailed connections, framing connections, hold-down connections, and strap connections for reinforcing the corners of openings. The various wall models were validated through laboratory testing of 12 full-scale shear wall configurations, which included a variety of opening types and sizes. At the wall design load level, the predicted strap forces around openings also agreed well with the test results, in contrast with four simplified analytical methods commonly used in designing shear walls with openings detailed for FTAO. This wall model thus presents a useful tool to check the accuracy of the simplified methods and develop a better understanding of the behavior of wood-frame shear walls with openings.
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Acknowledgments
This work is part of a joint research project of APA – The Engineered Wood Association, USDA Forest Products Laboratory and the University of British Columbia. The research fund provided under the joint venture Agreement 09-11111138-117 between APA – The Engineered Wood Association and Forest Products Laboratory is greatly acknowledged.
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© 2012 American Society of Civil Engineers.
History
Received: Aug 25, 2011
Accepted: Feb 17, 2012
Published online: Feb 22, 2012
Published in print: Dec 1, 2012
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