Abstract
This paper investigates the effect of flange thickness on nonlinear behavior of flanged shear walls. Four T shape flanged shear walls are studied and analyzed using finite element method. The total volume of each model is similar, such that when thickness decreases in the model, the length of wing increases. The results indicate that in the presence of lateral loads, the thickness has a significant effect on the shear absorption, ductility, displacement and crack pattern of the flanged shear walls. Numerical results show that shear walls with thick flanges behave more efficient than walls with thin flanges. For instance, lateral strength resisted by shear walls with thin flanges is 1250kN which is 14 percent decrease compared with thick flanged wall. Moreover, nonlinear behavior of flanged shear wall with thick flanges shows that strength and ductility are equivalent. Finally, the analyses indicate that while flange is in pressure, the global behavior is much more improved compared with condition which is in tension.
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