| CFRP布修复震损高强混凝土柱抗震性能试验研究 |
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| 引用本文： | 王苏岩,曹怀超,刘毅.CFRP布修复震损高强混凝土柱抗震性能试验研究[J].铁道科学与工程学报,2012(3):1-7. |
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| 作者姓名： | 王苏岩 曹怀超 刘毅 |
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| 作者单位： | 大连理工大学建设工程学部 |
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| 基金项目： | 国家自然科学基金项目资助(50878035) |
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| 摘 要： | 为了研究CFRP(碳纤维)布修复震损高强混凝土方柱的抗震性能,共进行了4个高强混凝土方柱试件模型的低周反复荷载试验,分别研究横向CFRP布方式加固试件和修复震损试件、横向结合L型CFRP布方式修复震损试件的抗震性能.在试验数据的基础上分析对比了试件的延性性能、承载力、能量耗散、刚度退化以及CFRP应变.研究结果表明:经...
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| 关 键 词： | CFRP 修复 高强混凝土 抗震性能 柱 |
Experimental investigation on seismic behavior of damaged high strength concrete columns repaired with CFRP sheets |
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| WANG Su-yan,CAO Huai-chao,LIU Yi.Experimental investigation on seismic behavior of damaged high strength concrete columns repaired with CFRP sheets[J].Journal of Railway Science and Engineering,2012(3):1-7. |
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| Authors: | WANG Su-yan CAO Huai-chao LIU Yi |
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| Institution: | (Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | In order to investigate the seismic behavior of high strength concrete square columns repaired with CFRP sheets,four high strength concrete square columns were tested under low reversed cyclic loading.The test included one reference column,one undamaged column strengthened with wrapped jacketing,two damaged columns repaired with wrapped jacketing and L-shaped jacketing combined with wrapped jacketing separately.Based on the test data,the ductility,bearing capacity,energy dissipation,stiffness degradation,and CFRP sheets strain for different columns were compared systematically.The results show that the seismic behavior of two repaired columns are significantly improved.The ductility of these two columns become much better than that of reference column,but are slightly worse than the undamaged column strengthened with wrapped jacketing.Compared with the wrapped jacketing method,the method of L-shaped jacketing combined with wrapped jacketing is more effective in repairing the damaged column. |
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| Keywords: | CFRP repair high strength concrete seismic behavior columns |
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