基于损伤的累积滞回耗能与延性系数

Study on Accumulated Dissipated Hysteretic Energy and Ductility Index based on Damage

从地震损伤评价出发,通过分析与推导,建立了基于位移延性系数的损伤评价模型。采用四个柱的破坏性试验数据,运用推导出来的模型进行了柱的损伤程度评价。考虑到延性系数计算的困难以及其与累积滞回耗能的关系,通过分析建立起累积滞回耗能与位移延性系数的关系曲线。

A damage evaluation model was built based on the displacement ductility index from the point of seismic damage assessment in this paper.Test data of four destructive columns were used to value their damage state,which was in accordance with the new model.Taken the difficulties in the calculation of ductility index and the relation to the dissipated hysteric energy into account,a dependence curve of the index and the dissipated hysteretic energy was built.