框架柱试验结果的震害指数计算模型比较

A Comparative Study on Seismic Damage Index Based on Test Results

基于钢筋混凝土框架柱试验研究结果和恢复力模型,对国际上较常用的3个震害指数计算模型进行计算.通过对3个不同轴压比框架柱试件基于不同震害指数模型计算结果的比较,分析所选用震害指数模型在评估钢筋混凝土构件破坏状态方面存在的优缺点.在此基础,提出震害指数研究的发展方向和建议.

The damage indices of three cyclic loading reinforced concrete column specimens were calculated according to three known seismic damage index models, which were based on accumulative damage, deformation-energy and structural stiffness, respectively. Based on the calculation results, test data and damage characteristics in the test process. the validity of these damage index models on evaluation of damage degree of RC columns under seismic loading were analyzed and compared. The existing problems on the research of seismic damage index and some suggestions for the future research were brought forward finally.