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（1內(nèi)蒙古建筑職業(yè)技術(shù)學(xué)院，呼和浩特 010070；2城市建設(shè)研究院）

[摘要] 基于動(dòng)力增量時(shí)程分析法的結(jié)構(gòu)易損性分析是基于性能抗震設(shè)計(jì)的重要內(nèi)容。本文重點(diǎn)分析了不同抗震設(shè)防烈度下三層RC框架結(jié)構(gòu)遭受地震動(dòng)破壞時(shí)的情況，統(tǒng)計(jì)得出了相應(yīng)的破壞概率矩陣與結(jié)構(gòu)易損性曲線；建立了設(shè)防烈度與破壞概率之間的關(guān)系，為設(shè)計(jì)人員確定結(jié)構(gòu)抗震性能水準(zhǔn)提供了數(shù)據(jù)支持。

[關(guān)鍵詞] 易損性；增量動(dòng)力分析法；框架結(jié)構(gòu)

中圖分類號(hào)：TU375

作者簡介：賈秀英，？

Analysis on structural seismic vulnerability of RC frames with different seismic fortification levels

Jia Xiuying， Yang Yanqi

（1 IMTCC，Hohehot 010070，China；2 ？）

Abstracts：Seismic vulnerability analysis based on IDA is the most important content of performance-based seismic design. A three-storey frame structure designed under different seismic fortification intensity were analyzed when Subjected to seismic damage in this paper, the statistics show that the corresponding destruction probability matrix and structural vulnerability curve; The relationship fortification intensity and failure probability were founded, and it can give the designers support data when determining the structural seismic performance level .

Keywords：vulnerability；IDA；frame structure

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