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中文摘要：
获得地震动引起混凝土结构残余变形量化指标,提出震致残余变形的控制准则,可为震后结构抗震加固提供技术依据,开展了混凝土框架柱的震致残余变形的非线性分析。按低周反复加载的混凝土模型柱的非线性分析结果获得的滞回曲线与试验结果较为吻合,验证了分析方法的适用性。以不同的轴压比、剪跨比、混凝土强度、纵筋配筋率等扩参数分析,分析了混凝土柱残余变形的控制因素。输入Emeryville地震波,考虑混凝土强度、剪跨比、配筋率的影响,分析了混凝土柱的非线性动力时程反应,获得了相应的震致残余变形大小及各参数对其影响规律。
英文摘要：
Quantifying assessment on residual displacements and proposing control deadline of residual displacement for reinforced concrete structures are an essential measure of post-earthquake seismic strengthening. Thus,nonlinear analysis was used to acquire the residual displacement of reinforced concrete（ RC） columns. A RC column model was subjected into repeated loading pattern. An approximate tendency of reduced pinch was observed in both of the hysteretic loops based on experiment from model specimens and their nonlinear analysis,which verifies the feasibility of analyzing simulation. Expanding parameters including ratio of axial compression stress to strength,aspect ratio,concrete strength and steel ratio,were used to analyze control impact of response of residual displacement. Considering to concrete strength,aspect ratio and steel ratio,Emeryville wave was input to analyze the nonlinearly dynamic response. The magnitudes of the residual drifts of RC columns were calculated and the influence of three parameters was compared
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