建筑结构学报2011,Vol.32Issue(12):224-234,11.
结构静力非线性分析与弹塑性时程分析结果的统计关系及残余变形计算
Statistical relationship between results of static nonlinear analysis and elasto-plastic time-history and calculation of residual deformation for structures
摘要
Abstract
Elasto-plastic time-history response analysis were conducted for SDOF system based on Takeda's and Kinematic restoring force model under 100 normalized recoded ground motions.Static nonlinear analysis was conducted using the established elastic response spectrum,which was set up based on the same group of recoded ground motions.The relationship between the results of static nonlinear analysis and those of elasto-plastic time-history response analysis,and the relationship between the residual deformation and the maximum plastic deformation were determined in the sense of statistics.It indicates that the relationship between average of results of elasto-plastic time-history response analysis for SDOF and the result of static nonlinear analysis is a function of the peak acceleration of ground motion and natural period while not affected by the stiffness degrading ratio.The result of static nonlinear analysis is always slightly lower than the average result of elasto-plastic time-history response analysis in the case of Takeda's and Kinematic models,while remarkably higher in the case of Eurocode's model.Both of the peak acceleration of ground motion and stiffness ratio has a significant influence on the relationship between residual deformation and maximum plastic deformation.关键词
结构抗震/单自由度体系/弹塑性时程分析/静力非线性分析/最大弹塑性位移/残余变形Key words
earthquake resistance of structure/SDOF/elastic-plastic time-history analysis/static nonlinear analysis/maximum deformation/residual deformation分类
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贡金鑫,程玲,张勤..结构静力非线性分析与弹塑性时程分析结果的统计关系及残余变形计算[J].建筑结构学报,2011,32(12):224-234,11.基金项目
国家自然科学基金重点项目 ()