无粘结预应力装配结构加固试验研究  

Strengthening Experiment Research of Unbonded Post-tensioned Precast Concrete Structure

作　　者：王冬雁[1] 李振宝[1] 杭英 郭二伟[1] 

机构地区：[1]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 [2]上海申英基建咨询有限公司,上海201103

出　　处：《工程抗震与加固改造》2007年第6期78-81,85,共5页Earthquake Resistant Engineering and Retrofitting

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20050005009)

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。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 pest-tensioned precast concrete joints with differences strengthening methods are analyzed.

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 

分 类 号：TU378[建筑科学—结构工程]