| 锈蚀RC框架柱恢复力模型研究 |
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| 引用本文： | 李 磊,周 宁,郑山锁.锈蚀RC框架柱恢复力模型研究[J].福州大学学报(自然科学版),2013,41(4):729-734. |
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| 作者姓名： | 李 磊 周 宁 郑山锁 |
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| 作者单位： | 西安建筑科技大学土木工程学院，陕西 西安 710055;西安建筑科技大学土木工程学院，陕西 西安 710055;西安建筑科技大学土木工程学院，陕西 西安 710055 |
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| 基金项目： | 国家自然科学基金资助项目(51108376) |
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| 摘 要： | 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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| 关 键 词： | RC框架柱 锈蚀 恢复力模型 抗震性能 |
Study on restoring force model of corroded RC frame column |
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| LI Lei,ZHOU Ning and ZHENG Shan-suo.Study on restoring force model of corroded RC frame column[J].Journal of Fuzhou University(Natural Science Edition),2013,41(4):729-734. |
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| Authors: | LI Lei ZHOU Ning and ZHENG Shan-suo |
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| Institution: | (College of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an,Shaanxi 710055,China) |
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| Abstract: | The effect of the reinforcement corrosion on the backbone curve of the RC column was investigated based on the regression analysis of a large test samples. The parameters on tri-linear backbone curve were given, considering strength and stiffness degradation, and defined the degradation index based on energy dissipation; the restoring model of corroded RC column was established at last. The model can well reflect the hysteretic properties of corroded RC columns by comparing the theory and test value. |
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