In the past three decades, several experiments were conducted to investigate the seismic behavior of composite plate shear walls (C-PSW) because of their advantages to conventional reinforced concrete (RC) and steel plate shear walls (SPSW). Numerical studies, however, are limited due to the complexities for the finite element modeling of the steel and concrete material behaviors and their composite action.

Herein, the cyclic behavior of various C-PSW with and without boundary elements (BE) is investigated numerically. The effects of design parameters such as aspect ratio, axial load ratio, and the length of the BE on the response of C-PSW are investigated. The advanced finite element software LS-DYNA is utilized to develop the cyclic model of C-PSW. The LS-DYNA model is validated using the available experimental data in the literature. Numerical analyses indicate that the‌‌ BE has a significant impact on the stiffness, strength, and energy absorption of C-PSW especially in high aspect ratio walls. A simplified method is proposed to estimate the peak shear strength of C-PSW with BE using the results of the numerical and experimental study.

在过去的三十年中，由于复合板剪力墙（C-PSW）相对于常规钢筋混凝土（RC）和钢板剪力墙（SPSW）的优势，进行了一些实验来研究其抗震性能。然而，由于钢和混凝土材料特性及其复合作用的有限元建模的复杂性，数值研究受到了限制。

在此，对具有和不具有边界元素（BE）的各种C-PSW的循环行为进行了数值研究。研究了长宽比，轴向载荷比和BE长度等设计参数对C-PSW响应的影响。利用先进的有限元软件LS-DYNA来开发C-PSW的循环模型。使用文献中的可用实验数据验证了LS-DYNA模型。数值分析表明，‌‌ BE对C-PSW的刚度，强度和能量吸收有显着影响，尤其是在高纵横比墙中。提出了一种简化的方法，利用数值和实验研究的结果估算了含BE的C-PSW的峰值剪切强度。