| 钢筋混凝土延性桥墩震后快速修复技术研究 |
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| 引用本文： | 司炳君,孙治国,王清湘,王东升.钢筋混凝土延性桥墩震后快速修复技术研究[J].大连理工大学学报,2010,50(1):93-98. |
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| 作者姓名： | 司炳君 孙治国 王清湘 王东升 |
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| 作者单位： | 1. 大连理工大学海岸和近海工程国家重点实验室,辽宁,大连,116024
2. 大连海事大学道路与桥梁工程研究所,辽宁,大连,116026 |
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| 基金项目： | 国家自然科学基金资助项目(50978042);;国家自然科学基金青年基金资助项目(50308027);;大连理工大学海岸和近海工程国家重点实验室主任基金资助项目(LP0504) |
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| 摘 要： | 采用3种不同修复方案对3个发生严重破坏的钢筋混凝土延性桥墩进行震后快速修复技术研究.试件首先在固定的轴力和侧向反复荷载下进行拟静力试验使之发生弯曲延性破坏,然后分别利用植筋、浇筑套箍、缠绕CFRP等方法对其进行快速修复并重新进行加载试验.试验结果表明,采用不同方案修复的桥墩承载力和延性指标均能得到较好恢复甚至提高,由于内部损伤的存在,修复后桥墩的初始刚度较低;缠绕CFRP修复的试件,由于施工简单,修复效果较好且造价较低,可在工程实际中推广.
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| 关 键 词： | 钢筋混凝土延性桥墩 修复 植筋 套箍 CFRP |
Research on rapid repair techniques for earthquake damaged ductile RC bridge piers |
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| SI Bingjun,SUN Zhiguo,WANG Qingxiang,WANG Dongsheng.Research on rapid repair techniques for earthquake damaged ductile RC bridge piers[J].Journal of Dalian University of Technology,2010,50(1):93-98. |
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| Authors: | SI Bingjun SUN Zhiguo WANG Qingxiang WANG Dongsheng |
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| Institution: | SI Bing-jun1,SUN Zhi-guo2,WANG Qing-xiang1,WANG Dong-sheng21.State Key Laboratory of Coastal , Offshore Engineering,Dalian University of Technology,Dalian 116024,China,2.Institute of Road , Bridge Engineering,Dalian Maritime University,Dalian 116026 |
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| Abstract: | An experimental study on three severely earthquake damaged ductile RC bridge piers was carried out to evaluate the feasibility of three available rapid repair techniques for bridge piers.The piers were initially severely damaged subjected to pseudo-static cyclic lateral loading while the axial load holded constant.Then the damaged piers were repaired with three different techniques by using additional bars,jacketing and CFRP sheets.The repaired specimens were tested again under the same loads.The results in... |
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| Keywords: | ductile RC bridge piers repair additional bars jacketing CFRP |
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