【摘要】 某城市交通上盖建筑的结构高度为119.1m,具有刚度突变、构件中断等不规则项，为满足功能需求，采用厚板转换全框支剪力墙结构。通过5个算例模型的振型分解反应谱法计算，分析了转换板厚度对结构抗震性能的影响规律，进而确定了板厚。在PERFORM-3D中采用深梁划分转换板，用深梁非线性行为来模拟板厚的受力状态，对结构进行了罕遇地震下的动力弹塑性时程分析，找到该结构的薄弱部位，检验结构是否满足设计时既定的性能目标，综合评价该类结构的抗震性能。分析结果表明：转换板厚度的增加对结构的抗震性能有一定影响，但增加到一定程度时，影响效率降低；在罕遇地震下，该结构的破坏次序为连梁-剪力墙-柱，符合预期破坏模式，具有较好的抗震性能。更多还原

【Abstract】 The structural height of a city traffic superstructure is 119.1m, and there are irregularities such as sudden changes in stiffness and component interruptions. In order to meet the functional requirements, thick slabs are used to convert full-frame-supported shear wall structures. Through the mode decomposition response spectrum method calculation of 5 example models, the influence of the thickness of the transfer plate on the seismic performance of the structure is analyzed, and then the thickness of the plate is determined. In software Perform-3D, the deep beam is used to divide the transfer plate, and the nonlinear behavior of the deep beam is used to simulate the stress state of the plate thickness. The dynamic elastoplastic time history analysis of the structure under rare earthquakes is carried out to find the weak part of the structure. Whether the structure meets the established performance goals is checked during design, and the seismic performance of this type of structure is comprehensively evaluated. The results show that the increase of the thickness of the transfer plate has a certain influence on the seismic performance of the structure. However, when the thickness increases to a certain extent, the efficiency of its impact diminishes. Under rare earthquakes, the structural damage sequence is coupling beams, shear walls, and columns in that order, which is in line with the expected failure mode, the structure has good seismic performance.更多还原