| 预应力芳纶纤维布加固混凝土梁的受剪承载力试验研究 |
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| 引用本文： | 邓宗才,张建军,张建伟,杜修力,何唯平.预应力芳纶纤维布加固混凝土梁的受剪承载力试验研究[J].工业建筑,2006,36(4):19-22. |
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| 作者姓名： | 邓宗才 张建军 张建伟 杜修力 何唯平 |
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| 作者单位： | 北京工业大学,建工学院,北京,100022;深圳市海川实业股份有限公司,深圳,518040 |
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| 基金项目： | 北京市自然科学基金
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北京市教委科研项目 |
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| 摘 要： | 通过7根芳纶纤维布加固钢筋混凝土梁的抗剪性能试验,研究了芳纶纤维布的预应力水平及加固形式对混凝土梁抗剪承载力的影响。试验结果表明,带永久锚具的预应力芳纶纤维布加固混凝土梁与非预应力芳纶纤维布加固混凝土梁相比,其开裂荷载显著提高,屈服荷载与极限荷载明显提高;预应力芳纶纤维布加固混凝土梁的抗剪承载力随着纤维布预应力水平的提高而增大。
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| 关 键 词： | 预应力 芳纶纤维布 永久锚具 加固 混凝土梁 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2005年11月15 |
EXPERIMENTAL STUDY ON SHEAR CAPACITY OF RC BEAMS STRENGTHENED WITH PRESTRESSED AFRP SHEETS |
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| Deng Zongcai,Zhang Jianjun,Zhang Jianwei,Du Xiuli,He Weiping.EXPERIMENTAL STUDY ON SHEAR CAPACITY OF RC BEAMS STRENGTHENED WITH PRESTRESSED AFRP SHEETS[J].Industrial Construction,2006,36(4):19-22. |
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| Authors: | Deng Zongcai Zhang Jianjun Zhang Jianwei Du Xiuli He Weiping |
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| Affiliation: | 1 Civil Engineering College, Beijing University of Technology Beijing 100022;2 Shenzhen Haichuan Industrial Co. ,Ltd Shenzhen 518040 |
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| Abstract: | Based upon the experimental study on shear bearing capacity of seven strengthening RC beams using aramid fiber reinforced plastic(AFRP) sheets,the effects of different prestress levels and different shear strengthening measures on shear bearing capacity of RC strengthening beams were researched.The experimental results show that as compared with the beams strengthened with non-prestressed AFRP sheets,the initial cracking load of the beam strengthened with prestressed AFRP sheets is increased significantly,at the same time,the yield load and ultimate load are increased significantly;when the prestressed level of AFRP sheet is gradually increased,the shear bearing capacity of the strengthened beams is also gradually increased. |
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| Keywords: | prestress AFRP sheet permanent anchor strengthening RC beam |
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