【作者】 吴素静；

【导师】 郝际平； 胡明；

【作者基本信息】 西安建筑科技大学 ， 结构工程， 2004， 硕士

【摘要】 建筑物在遭遇罕遇地震时，为了确保“大震不倒”，正确地了解并把握结构在地震中的破坏状况，必须追踪结构在地震时结构反应的全过程，了解结构的薄弱楼层和构件。本论文通过对某实际工程运用静力弹塑性分析和时程分析，对上述设计目标进行了分析及研究。 本论文分析模型采用日本已建成的某超高层钢骨混凝土住宅，通过使用国内计算软件(PKPM及MIDAS/Gen)对结构进行弹性及弹塑性分析。静力弹塑性分析方法和时程分析方法比一般通用的振型分解反应谱抗震分析方法能够提供更合理，更符合实际的结果，本论文的讨论研究为实际工程设计中采用上述两种方法时，提供了一定的理论及数据分析结果。 静力弹塑性分析本质上是一种静力分析方法，对结构进行静力单调加载下的弹塑性分析。进而揭示出在罕遇地震作用下结构实际的屈服机制，各塑性铰的出现顺序，找出结构的薄弱环节，确认结构设计中“强柱弱梁”的设计原则，得出Push-over图形(层剪力图形及构件剪力图形)。 时程分析是将地震波按时段进行数值化后，输入结构体系的振动微分方程，采用逐步积分法得出结构在整个地震时域中振动状态的全过程。本文根据Push-over曲线图形置换理想恢复力特征曲线，并从地震波的选用，结构分析模型以及结构动力方程的建立及解法等方面对结构的时程分析进行了讨论研究。 本文分析结果与原文献结果吻合相当一致。更多还原

【Abstract】 When the building encounters the rare earthquake, to ensure the building not to collapse during it ,to correctly grasp structure’s destroy status, to trace the whole process of the structure’s respond and to find out the weakness of the structure’s floors and elements, this paper carries though the pushover analysis and time history analysis of an actual structure.The analysis model came from a built high SRC structure of Japan. The building is making elastic and inelastic analysis through using the national program (PKPM and MIDAS/Gen). And the two analysis methods are more reasonable and combinable with the actual instance than the general seismic analysis methods. This paper mainly discusses the two methods of designing actual project and offers the results of the theory and data.The pushover analysis is essentially static analysis method. It is an inelastic analysis during the linear monotony loads. It can show the actual yield mechanism and the appearance sequence of the hinge, find out the weakness of the structure and gain the pushover figure (floor-shear diagram and element-shear diagram).Time history analysis is carries on after the seismic waves being numbered according to period, input values of seismic wave to vibration equation of system, adopt the method of progressive integral to gain the whole course of the structure’s state at the whole earthquake. To discuss the time history analysis, the paper explains many problems, such as the imitation of the resilience curve from the pushover figure, the selection of the seismic waves, the model of dynamical analysis and the establishment and solution of the vibration equation.The analysis results correspond well to the exist values.更多还原