| 无粘结预应力装配结构加固试验研究 |
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| 引用本文： | 王冬雁,李振宝,杭英,郭二伟. 无粘结预应力装配结构加固试验研究[J]. 工程抗震与加固改造, 2007, 29(6): 78-81,85 |
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| 作者姓名： | 王冬雁 李振宝 杭英 郭二伟 |
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| 作者单位： | 北京工业大学工程抗震与结构诊治北京市重点试验室,北京,100022;上海申英基建咨询有限公司,上海,201103 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金资助项目(20050005009) |
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| 摘 要： | 本文采用碳纤维布和外包钢两种加固方法,对无粘结后张预应力装配梁、柱节点进行了低周反复加载试验研究。试验表明加固后预应力装配梁、柱节点仍然保持了令人满意的抗震特性,如自恢复能力和较大非线性位移下破坏较少等能力。分析了不同加固方法对无粘结后张预应力装配节点抗震性能的影响。
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| 关 键 词： | 低周反复加载 无粘结后张预应力装配节点 碳纤维布加固 外包钢加固 |
| 文章编号： | 1002-8412（2007）06-0078-04 |
| 收稿时间： | 2007-06-29 |
| 修稿时间： | 2007-06-29 |
Strengthening Experiment Research of Unbonded Post-tensioned Precast Concrete Structure |
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| Wang Dong-yan,Li Zhen-bao,Hang Ying,Guo Er-wei. Strengthening Experiment Research of Unbonded Post-tensioned Precast Concrete Structure[J]. Earthquake Resistant Engineering and Retrofitting, 2007, 29(6): 78-81,85 |
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| Authors: | Wang Dong-yan Li Zhen-bao Hang Ying Guo Er-wei |
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| Abstract: | In this paper,seismic performances of unbonded post-tensioned precast concrete joints strengthened with CFRP and angle steels under reversed cyclic loading are studied.Experiments show that these joints after strengthened also have desirable seismic characteristics such as a self-centering capability and an ability to undergo large nonlinear displacements with little damage.At last,the effects on seismic characteristics of unbonded post-tensioned precast concrete joints with differences strengthening methods are analyzed. |
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| Keywords: | reversed cyclic loading unbonded post-tensioned precast concrete joints strengthened with CFRP strengthened with angle steel |
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