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Theoretical Models for Predicting Racking Resistance of Shear Walls  

Jang, Sang Sik (Dept. For. Prod., Chungnam National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.30, no.4, 2002 , pp. 96-105 More about this Journal
Abstract
Shear wall is the most important component resisting lateral loads imposed to a building by wind or earthquake. In shear walls, lateral load applied to framing is transmitted to sheathing panel through nailed joints between sheathing and framing so that the load is resisted by in-plane shear strength of sheathing. Therefore, nailed joints are the most basic and important component in the viewpoint of stiffness and strength of shear walls. In this study, stiffness and strength of single nailed joint were measured by single shear tests of nailed joints and used as input for theoretical models developed to estimate racking behavior of shear walls. And shear walls were tested to check the accuracy of theoretical models estimating racking resistance of shear walls. Stiffness of nailed joint was affected by grain direction of stud but direction of sheathing panel had little effect. Behavior of nailed joint and shear walls under lateral loads could be represented by three lines. Theoretical model II was more accurate than theoretical model I in estimating racking behavior of shear wall under loads.
Keywords
shear wall; nailed joint; theoretical model; lateral load; light-frame wood construction;
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