中文摘要：

采用ABAQUS有限元软件对一平面不规则复杂超限结构的抗震性能进行数值仿真,并将计算结果与振动台试验进行对比,验证数值仿真结果的准确性。利用杆单元、壳单元建立结构的动力弹塑性分析模型,计算结构在不同输入水平下的加速度响应和位移响应,并重点分析穿层柱的受力情况及开洞楼板的应力水平。数值计算得到的加速度响应和振动台试验结果规律基本一致,有限元模型基本反映了结构在模拟地震下的响应;部分穿层柱所受地震剪力较相邻层对应位置框架柱更小,角部位置穿层柱的扭转响应更敏感;洞口边缘楼板较易出现应力集中现象,竖向构件与楼板连接部位更为明显,错层斜板在地震输入过程中角部更易出现应力集中,主要表现为受拉破坏。ABAQUS能够对平面不规则复杂超限结构的抗震性能进行比较准确的数值仿真,为结构关键构件的精细化分析提供依据。

英文摘要：

Numerical Simulation of complex transfinite structure with plane irregularity is carried out by using ABAQUS finite element software,and the calculated results and the shaking table test are compared,the accuracy of the numerical simulation results is verified. Rod element and shell element are used to establish the structure of the dynamic elastic-plastic analysis model,the structure is calculated under different input level and displacement response of the acceleration response,and the force of the wear layer column and the stress level of the open hole are analyzed. The results of numerical calculation are consistent with the experimental results. The finite element model basically reflects the response of the structure under simulated earthquake. Seismic shear force on the part wear layer column is smaller than the adjacent to a corresponding location frame column,and the corner wear layer torsional response is more sensitive. The stress concentration phenomenon is easy to occur in the floor of the entrance of the cave,especially in the connection parts of vertical component and floor. The corner of staggered inclined plate easy appears the stress concentration phenomenon during the seismic input,and mainly manifests as tensile failure. ABAQUS is able to do the accurate numerical simulation of seismic performance of irregular and complex structures with irregular plane,it could provide the basis for analysis of structural refinement of the key components.