| 粘贴预应力纤维片材加固混凝土梁截面非线性分析 |
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| 引用本文： | 肖菲菲,周朝阳.粘贴预应力纤维片材加固混凝土梁截面非线性分析[J].铁道科学与工程学报,2005,2(5):41-44. |
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| 作者姓名： | 肖菲菲 周朝阳 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075;中南大学,土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 与简单粘贴纤维片材加固法相比,采用粘贴预应力片材加固技术能更充分地利用纤维片材的强度,更有效地改善构件的使用性能,因而逐渐受到重视.采用条带划分法,运用C语言编程,对粘贴预应力碳纤维布加固混凝土梁截面的非线性受力性能（包括弯曲破坏形态和承载能力）进行了数值模拟分析.与试验结果的比较表明,应用该计算方法和程序,能够较好地反映外贴预应力纤维片材加固混凝土梁截面的试验现象和规律.基于分析结果,得到了一些有意义的结论.
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| 关 键 词： | 纤维片材 预应力 混凝土梁 非线性分析 加固 弯曲 |
| 文章编号： | 1672-7029(2005)05-0041-04 |
| 收稿时间： | 2005-06-15 |
| 修稿时间： | 2005年6月15日 |
Nonlinear analysis of RC beams strengthened by bonding prestressed FRP laminate |
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| XIAO Fei-fei,ZHOU Chao-yang.Nonlinear analysis of RC beams strengthened by bonding prestressed FRP laminate[J].Journal of Railway Science and Engineering,2005,2(5):41-44. |
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| Authors: | XIAO Fei-fei ZHOU Chao-yang |
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| Institution: | School of Civil Engineering and Architecture, Central South University, Changsha 410075, China |
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| Abstract: | Compared with conventional strengthening method by simply bonding FRP laminate, prestressed FRP lami- nate can increase the strength of FRP and improve the performance of RC beams more effectively, so this new tech- nique is recognized gradually. With FEM and corresponding program written, numerical analyses are presented for sec- tions of RC beams strengthened with bonded prestressed FRP Laminate. Comparison with experimental results shows the method and program can predict the flexural failure modes, load - carrying capacity and other nonlinear behavior of the tested specimens. And some valuable conclusions are drawn from the results. |
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| Keywords: | FRP laminate prestressing RC beam nonlinear analysis strengthening flexure |
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