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锈蚀RC框架柱恢复力模型研究

LI Lei,ZHOU Ning,ZHENG Shan-suo

Journal of Fuzhou University(Natural Science Edition)（2013）

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Abstract
通过对大量锈蚀RC框架柱抗震性能试验资料的统计分析,研究了锈蚀对RC柱骨架线影响的规律.采用三折线骨架曲线,并且给出特征点的计算方法;考虑往复荷载作用下强度退化及刚度退化效应,基于能量耗散原理,定义了退化指数,最终建立了能够反映强度和刚度退化的锈蚀RC柱恢复力模型.经验证表明:该模型能够较好地反映锈蚀RC柱的滞回特性,符合试验结果.
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Key words
corrosion,RC frame column,restoring model,seismic behavior
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