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基于大型有限元软件ABAQUS,开展罕遇地震作用下天津某商业大厦超限高层结构弹塑性时程响应分析,以把握结构的弹塑性行为、主要构件的损伤程度。介绍了弹塑性时程分析在软件中的实现方法,包括材料本构和构件模拟、积分方法的选取,补充了铰接、非结构质量的模拟方式。计算结果表明:在给定的罕遇地震作用下,结构整体受力性能良好,满足第三水准的抗震设防目标要求。
Based on the large-scale finite element software ABAQUS, the elasto-plastic time-history response analysis of the over-limit high-rise structure of a commercial building in Tianjin under rare earthquakes is carried out to grasp the elastic-plastic behavior of the structure and the damage degree of the main components. The realization methods of elastoplastic time-history analysis in software are introduced, including the selection of material constitutive and component simulation and integral method, and the supplement of articulation and non-structural mass simulation methods. The calculation results show that under the given rare earthquakes, the overall mechanical performance of the structure is good, and the requirements of the third level of seismic fortification are met.