无粘结预应力装配梁非线性弯矩曲率的研究  

RESEARCH ON NON-LINEAR MOMENT-CURVATURE OF UNBONDED POST-TENSIONED PRECAST CONCRETE BEAMS

作　　者：王冬雁[1] 李振宝[2] 闫维明[2] 

机构地区：[1]中国建筑工程总公司技术中心,北京101300 [2]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

出　　处：《工业建筑》2009年第7期44-47,82,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(50678005);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：在对4个无粘结预应力直接装配节点试件进行试验研究的基础上,采用弯矩-曲率分析方法对4个无粘结预应力直接装配节点试件进行了弹性和弹塑性阶段的分析,建立了装配节点弯矩-曲率模型,并编制了相应的计算程序,用试验结果检验了理论分析值,证明吻合良好,为研究预应力装配结构体系在大震情况下的非线性性能,提供了合理有效的非线性曲率模型。On the basis of test researching on four unbonded prestressed assembly specimens, it was used the tool of moment-curvature to analyse the performances on elastic and elastic-plastic phase of the four unbonded prestressed precast samples. It was gained the moment-curvature model of prestressed preeast specimens, by which the validity of theoretical analysis was verified by comparing the test results. Computing programmed was made and the theoretical results showed a good agreement with those of the test. Which provided a reasonable and effective nonlinear moment-curvature model for studying the non-linear performance of prestressed precast structures under a big earthquake.

关 键 词：无粘结预应力装配节点 非线性性能 弯矩曲率分析 弯矩曲率模型 

分 类 号：TU378[建筑科学—结构工程]