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一平面及立面均不规则的不对称连体高层建筑结构采用框架-剪力墙结构体系,通过EPDA软件进行了三维弹塑性时程分析,对揭示出的薄弱部位进行了重点加强,对关键构件进行大震下的配筋复核与设计。在完成数值计算后,又进行了1∶30缩尺的整体模型振动台试验,得到了结构的动力特性、位移反应、楼层的最大位移与平均位移之比以及在各级地震下结构的裂缝开展情况。试验结果表明:虽然结构存在刚度突变、扭转不规则及楼板大开洞这三项超限情况,但通过分析及合理设计,并采取抗震加强措施,能使结构满足预设的性能目标。
An asymmetric high-rise building with an irregular plane and an elevation adopts the frame-shear wall structure system. The three-dimensional elasto-plastic time history analysis is conducted by EPDA software, and the weak spots revealed are emphasized. The key Reinforcement Review and Design of Members under Strong Earthquakes. After the numerical calculation was completed, a 1:30 scale global model shaking table test was carried out. The dynamic characteristics of the structure, the displacement response, the ratio between the maximum displacement and the average displacement of the floor, and the crack initiation under various earthquakes Happening. The test results show that although the structure has three kinds of overrun conditions, such as sudden change in stiffness, irregular twist and large opening in the floor, the structure can meet the preset performance target through analysis and rational design and seismic strengthening measures.