中文摘要：

为实现利用简化杆系模型准确模拟钢板剪力墙结构复杂的滞回行为，提出一种适用于桁架单元的钢板剪力墙滞回理论模型。给出了该模型骨架曲线和滞回准则的数学表达，建立了关键点参数与结构特性之间的解析关系，综合考虑了材料本构关系影响以及钢板受压区域的贡献，该模型适用于不同内嵌钢板宽厚比情况。利用ABAQUS有限元软件用户子程序接口UMAT进行二次开发，编制了相应的计算程序，实现了钢板剪力墙简化滞回模型与杆系单元的集成，兼顾计算精度和计算效率。结合典型钢板剪力墙试验结果，验证了模型的准确性和适用性。

英文摘要：

In order to use the simplified line element model to accurately simulate the complicated hysteretic behavior of steel plate shear wall structure, a hysteretie theoretical model of infill plate with truss element was proposed. The mathematic expressions of skeleton curves and hysteretic criteria were given. The analytical relations of key points and structural characteristics were established. The proposed model can comprehensively consider the effect of material constitutive relationship and the contribution of compressive region, which could be used for simulating the hysteretic behavior of steel plate shear wall structures with a wide range of width-to-thickness ratios. The corresponding calculation procedure was developed using the user subroutine UMAT provided by ABAQUS. The integration of this hysteretic model of steel plate shear wall and line element was achieved, balancing the computational accuracy and efficiency. The accuracy and feasibility of model was verified by typical test results of steel plate shear walls.