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静力弹塑性(Pushover)分析方法作为一种评估结构抗震性能的非线性分析方法,具有简便、实用、可靠的优点,近年来在国内外得到了广泛的关注和研究。针对静力弹塑性分析方法的研究热点问题——侧向力加载模式作了详细的介绍和深入的分析,在此基础上对两个混凝土框架高层结构(分别为平面不规则和规则的结构)进行了基于侧向力加载模式的推覆分析。对比分析了不同侧向力加载模式下的基底剪力-顶点位移关系曲线和层间位移角关系曲线,认为基于均匀分布模式和倒三角分布模式的推覆分析对实际工程的弹塑性分析具有指导意义,自适应分布模式的推覆分析方法可以代替弹塑性时程分析方法来评估结构的抗震性能。
As a nonlinear analysis method to evaluate the seismic performance of structures, Pushover analysis method has the advantages of simplicity, practicability and reliability. In recent years, it has received extensive attention and research both at home and abroad. Aiming at the hot research problem of static elasto-plastic analysis method-lateral force loading mode, a detailed introduction and in-depth analysis are given. Based on this, two concrete frame high-rise structures (planar irregular and regular structures) Pushover analysis based on lateral force loading mode was performed. The curves of the relationship between the shear displacement of a substrate and the displacement of a bed under different lateral force loading modes are compared and analyzed. It is considered that the pushover analysis based on the uniform distribution mode and the inverted triangle distribution mode can guide the analysis of the elastic-plastic analysis of the actual project The meanings of the adaptive distribution model of the pushover analysis method can be used instead of elasto-plastic time history analysis to evaluate the seismic performance of the structure.