MODELING THE NON-LINEAR BEHAVIOR OF WOOD FRAME SHEAR WALLS

Abstract eng:
Wood frame shear walls are an integral component of the lateral load resisting system of any low-rise structure constructed today. While seemingly ordinary, a wood frame shear wall is a complex physical structure that includes various types of structural members and connections. A study has recently been undertaken to investigate the effect of vertical load on the static and cyclic lateral load response of wood frame shear walls. A coordinated theoretical and experimental program is underway; the theoretical program is to involve the development of simple mechanics based models and detailed finite element models of the wall. Presented in the paper are preliminary results of the detailed finite element modeling effort, and a comparison to experimental results. The shear wall is modeled using the ANSYS finite element program. The static, non-linear behavior of the wall is investigated, including the effect of vertical load. Results are verified against available test data. Preliminary results show good correlation between the finite element model and the experimental data.

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