%A LI Ying-min, YANG Long, LIU Shuo-yu, LUO Wen-wen %T Method of failure mode evaluation of structure based on seismic resilience index %0 Journal Article %D 2017 %J Journal of ZheJiang University (Engineering Science) %R 10.3785/j.issn.1008-973X.2017.11.014 %P 2197-2206 %V 51 %N 11 %U {https://www.zjujournals.com/eng/CN/abstract/article_39886.shtml} %8 2017-11-05 %X

A resilience index, which can be used to evaluate the safety, economy, and recoverability of different failure modes was proposed in order to provide the decision-making basis of performance-based seismic design of structures. The calculation method and process of resilience index used for a single structure in a given earthquake intensity region were illustrated based on the seismic resilience of system. The seismic resilience indexes of RC frame structures, which were associated with five kinds of typical failure modes, were figured out through vulnerability analysis and resilience parameter analysis. The susceptibilities of seismic resilience indexes to seismic resilience parameters were analyzed, A modified calculation method of seismic resilience indexes of structure in a given earthquake intensity region was proposed. Results demonstrate that the factors related to seismic damage of structure are comprehensively covered by seismic resilience index, and the resilience (safety, economy, and recoverability) of structure is reflected by this index. The resilience of structures associated with different failure modes are separated obviously from each other by the modified indexes. The results of modified indexes conform to the qualitative judgment for the performances associated with different failure modes in existing researches.