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中文摘要：
锈蚀引起钢筋截面面积缩小、力学性能劣化以及钢筋混凝土间粘结性能退化等,是导致结构抗震性能退化的最主要因素。基于增量动力分析（IDA）方法,通过对不同锈蚀程度的RC框架结构进行抗地震倒塌易损性分析,讨论了钢筋锈蚀程度对RC框架结构在大震、特大地震下的抗地震倒塌能力和抗地震倒塌安全储备能力的影响,并根据分析结果提出了相关建议。结果表明,钢筋锈蚀程度对其抗地震倒塌能力有重要影响,特别是在特大地震下,当钢筋锈蚀率大于10%时,其影响最为显著。
英文摘要：
Corrosion is the most important factor in the structural seismic performance degradation, which leads to rebar section area reduction, mechanical properties degradation and bonding properties degradation between reber and concrete. Collapse fragility analysis of RC frame structures with different corrosion extent was carried out based on incremental dynamic analysis （IDA） method. The influence of the rehar corrosion extent on the seismic collapse resistance ability and safety margin against seismic collapse was researched under the rare earthquake and the mega earthquake. Relevant suggestions were proposed based on the analysis results. The results show that the rehar corrosion extent has a great influence on the seismic collapse resistance ability , especially the structures under the rnega earthquake with the rebar corrosion rate greater than the 10%.
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