| CFRP增强方截面钢管混凝土受弯性能研究 |
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| 引用本文： | 王庆利,车媛,叶茂.CFRP增强方截面钢管混凝土受弯性能研究[J].土木工程学报,2011(Z1). |
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| 作者姓名： | 王庆利 车媛 叶茂 |
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| 作者单位： | 沈阳建筑大学;大连理工大学;大连市建筑设计研究院有限公司; |
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| 基金项目： | 教育部新世纪优秀人才支持计划(NCET-08-0865); 辽宁省高等学校优秀人才支持计划(2007R31) |
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| 摘 要： | 以钢管约束效应系数和纵向CFRP增强系数为主要参数,进行16个CFRP增强方钢管自密实混凝土受弯构件的静力试验研究。试验结果表明,试件的弯矩-曲率曲线可以划分为以下三个阶段:弹性段、弹塑性段和软化段;纵向CFRP可以提高试件的抗弯承载力和刚度。对试验结果的分析表明,钢管和CFRP在横向和纵向都可以共同工作;在整个加载过程中,试件变形基本符合平截面假定。应用ABAQUS模拟试件的弯矩-曲率曲线和破坏模态,计算结果与试验结果吻合良好。
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| 关 键 词： | 方钢管混凝土 CFRP约束 受弯构件 静力性能 试验研究 有限元模拟 |
Research on flexural performances on the CFRP confined concrete filled steel tube with square cross-section |
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| Wang Qingli Che Yuan, Ye Mao.Research on flexural performances on the CFRP confined concrete filled steel tube with square cross-section[J].China Civil Engineering Journal,2011(Z1). |
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| Authors: | Wang Qingli Che Yuan Ye Mao |
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| Affiliation: | Wang Qingli1 Che Yuan1,2 Ye Mao3(1.Shenyang Jianzhu University,Shenyang 110168,China,2.Dalian University of Technology,Dalian 116024,3.Dalian Institute of Architectural Design & Research Co.,Ltd.,Dalian 116021,China) |
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| Abstract: | Static behaviors of sixteen self-consolidating concrete filled square steel tubular flexural members confined by CFRP were experimentally investigated in this paper by using the confinement factor of the steel tube and the strengthening factor of the longitudinal CFRP as the main parameters.The test results show that the moment-curvature curves of the composite members can be divided into three stages-elasticity,elasto-plasticity and softening stage,and the longitudinal CFRP can enhance the flexural bearing... |
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| Keywords: | concrete filled square steel tube CFRP confinement flexural member static behavior experimental study finite element simulation |
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