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对天津津湾广场9号楼超高层建筑在罕遇地震作用下的非线性响应进行时程分析。采用三维结构非线性分析与性能评估软件Perform-3D建立计算模型。以FEMA梁与剪切强度截面为组件组装单元模型模拟框架梁;以弯曲塑性铰、剪切塑性铰与弹性截面梁为组件组装单元模型模拟连梁;以FEMA柱与剪切强度截面为组件组装单元模型模拟框架柱;以纤维墙元模型模拟剪力墙。根据FEMA356的性能指标体系对构件在罕遇地震作用下的性能进行评价,计算结果表明结构设计满足预先设定的性能目标。
Time-course analysis of nonlinear response of Tianjin Building No.9 Building of Tianjin Bay Tower under rare earthquakes. A computational model was built using 3D structural nonlinear analysis and performance evaluation software Perform-3D. The FEMA beam and shear strength cross-section are used to simulate the frame beam. The bending plastic hinge, the shear plastic hinge and the elastic cross-section beam are used to simulate the connecting beam. The FEMA column and the shear strength cross section are used to assemble the module Element model simulation frame column; simulation of shear wall with fiber wall element model. According to FEMA356 performance index system, the performance of components under rare earthquakes is evaluated. The results show that the structural design meets the preset performance targets.