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选取100条地震波并标准化为地面峰值加速度为0.1g～0.5g的地震波,采用Takeda和Kinematic恢复力模型对单自由度体系进行弹塑性时程分析;同时使用100条地震波获得的不同阻尼比的弹性加速度反应谱,基于Takeda、Kinematic模型,采用欧洲规范的方法,对单自由度体系进行静力非线性分析;建立静力非线性分析结果与弹塑性时程分析结果的统计关系以及单自由度体系残余变形与最大塑性位移的统计关系。分析表明:弹塑性时程分析结果的平均值与静力非线性分析结果的关系在一定程度上受地面峰值加速度和结构自振周期影响,基本不受结构刚度退化比影响;基于Takeda和Kinematic模型的静力非线性分析结果略低于弹塑性时程分析结果的平均值,而基于欧洲规范方法的静力非线性分析结果则高于弹塑性时程分析结果的平均值;残余变形与最大塑性位移的关系明显受地面峰值加速度和结构刚度退化比的影响。
100 seismic waves were selected and normalized to the peak ground acceleration of 0.1g ~ 0.5g. Takeda and Kinematic restoring force models were used to analyze the elasto-plastic time-history of the single-degree-of-freedom system. At the same time, the elasticity of different damping ratios obtained by 100 seismic waves Acceleration response spectra, based on the Takeda and Kinematic models, the static and nonlinear analysis of single-degree-of-freedom system is carried out by the European standard method. The statistical relationship between static nonlinear analysis results and elasto-plastic time-history analysis results is established. Statistical Relationship Between Residual Deformation and Maximum Plasticity Displacement. The analysis shows that the relationship between the mean value of the elasto-plastic time history analysis and the static nonlinear analysis results is affected to some extent by the peak ground acceleration and the natural period of the structure, and is not affected by the structural stiffness degradation rate. Based on the Takeda and Kinematic models The results of static nonlinear analysis are slightly lower than those of elasto-plastic time history analysis. The results of static nonlinear analysis based on European standard method are higher than those of elasto-plastic time history analysis. The residual deformation and maximum plasticity The displacement relationship is significantly affected by the peak ground acceleration and the structural stiffness degradation ratio.