In spite of existing comprehensive studies on the behavior of steel plate shear wall (SPSW), some aspects of the SPSW have remained unknown, yet. One of the important aspects that is unknown is the crack effect on the SPSW behavior in linear and nonlinear zones. Some experimental studies have been reported that SPSWs were fractured due to crack propagation. Therefore, the crack effect on the behavior of SPSW should be accounted in considering of SPSW behavior. Although the effect of crack on the thin SPSW has been investigated to a limited extent numerically, stiffened SPSPW, especially diagonally stiffened SPSW, has not been studied. In doing so, in this paper, the effect of crack effect on the behavior of diagonally stiffened SPSWs is studied parametrically and numerically. Numerical results showed that stiffened walls exhibit better behavior in the presence of crack compared with SPSW in both elastic and inelastic zones. Because crack propagates in nonlinear zone, it has not effective on elastic behavior of diagonally stiffened SPSW. The effect of crack was also presented as mathematical equations to estimate load–displacement curve that are in agreement with the finite element results especially for wall thinker stiffeners.

中文翻译：

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裂纹对对角加劲肋加固钢板剪力墙的影响

尽管已经对钢板剪力墙（SPSW）的性能进行了全面的研究，但SPSW的某些方面仍然未知。未知的重要方面之一是裂纹对线性和非线性区域中SPSW行为的影响。据报道，一些实验研究表明，SPSW由于裂纹扩展而断裂。因此，在考虑SPSW行为时应考虑裂纹对SPSW行为的影响。尽管已在有限的数值上研究了裂纹对薄SPSW的影响，但尚未研究加劲的SPSPW，尤其是对角加劲的SPSW。为此，本文通过参数和数值研究了裂纹对斜向加筋SPSW性能的影响。数值结果表明，在弹性和非弹性区域中，与SPSW相比，加筋墙在存在裂缝的情况下表现出更好的行为。由于裂纹在非线性区域中传播，因此对斜向加筋的SPSW的弹性行为无效。裂缝的影响也以数学方程式的形式表示，以估算载荷位移曲线，该曲线与有限元结果相吻合，特别是对于墙式思想家加劲肋。