某地铁停车场上盖超限高层建筑动力弹塑性分析

Analysis of High-rise Building Dynamic Elastic Plastic Cover of a Subway Car Park

地铁停车场上建造的高层建筑结构形式复杂,一般属于超限高层建筑。采用集中塑性铰模型模拟梁柱构件、纤维单元模型模拟结构剪力墙,采用Midas Building软件建立了某地铁车场上一个高层建筑结构的数值模型,对该结构进行了罕遇地震作用下的弹塑性时程分析,获得结构弹塑性层间位移角和梁柱及剪力墙塑性铰分布。结果表明,该超限高层建筑结构层间位移角满足规范限值的要求,梁、柱和剪力墙塑性铰分布合理,罕遇地震作用下结构符合抗震设计安全要求。

Building underground parking lot on the form of high-rise building structure is complex, generally belong to high-rise building. Using lumped plastic hinge model simulation of beam column elements, fiber element model to simulate the structure of shear wall, built a subway station on the high-rise building structure numerical model by using the Midas Building software, the structure of the rare earthquake the elastoplastic time history analysis of the structure is obtained, the elasto-plastic inter story displacement angle of beam and column and shear wall, the distribution of the plastic hinge. The results show that, the high-rise building structure layer displacement angle to meet the requirements specification limits, beam, column and shear wall in the plastic hinge distribution is reasonable, infrequent structures under earthquake can meet the seismic design safety requirements.