Abstract： In the traditional analysis of structural seismic vulnerability，the structural seismic response index does not adequately represent the damage characteristics，so that it cannot provide an accurate initial damage index for the evaluation of structural post-earthquake resilience. In view of the above problem and the demand for assessment of structural seismic resilience，a damage index based on elasto-plastic energy dissipation difference is proposed for assessment of structural seismic vulnerability. A method of calculating the damage index under specified ground motion intensity and exceedance probability is establishedBy making use of the characteristic of describing the dynamic evolution process of system damage and recovery，the performance level recovery function model of single building structure and regional building group based on SIR model is proposed，and the calculation method of structural resilience ability is also suggested，so that the whole process of “direct damageindirect damage-recovery” for building structure group under seismic excitation can be representedVulnerability analysis and post-earthquake resilience evaluation are performed for the single structure and regional structure. The results show that the damage index based on elasto-plastic energy dissipation difference has the advantages of accuracy，stability and clarity，and hence it is superior to the traditional indices in discreteness and correlation. SIR resilience evaluation model is more accurate and efficient，and is suitable to be extended to regional building groups，and hence，it is a useful supplement to the existing framework of regional resilience evaluation.
何浩祥 胡一凡 吴山. 基于耗能差指数和SIR模型的#br# 结构易损性及可恢复能力评估[J]. 土木工程学报, 2020, 53(4): 11-22.
He Haoxiang Hu Yifan Wu Shan. Evaluation of structural vulnerability and resilience based#br# on energy dissipation difference index and SIR model. 土木工程学报, 2020, 53(4): 11-22.
