预应力芳纶纤维布加固混凝土梁的受剪承载力试验研究

邓宗才; 张建军; 张建伟; 杜修力; 何唯平

doi:10.13204/j.gyjz200604006

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预应力芳纶纤维布加固混凝土梁的受剪承载力试验研究

doi: 10.13204/j.gyjz200604006

1.
1. 北京工业大学建工学院北京 100022;
2.
2. 深圳市海川实业股份有限公司深圳 518040

基金项目:

北京市自然科学基金重点项目(编号:8051001);北京市教委项目(编号:KM10005007)。

详细信息

作者简介:
邓宗才男 1961年 12月出生教授 E-mail: dengzc@bjut.edu.cn

中图分类号: TU378.2
计量
- 文章访问数: 108
- HTML全文浏览量: 11
- PDF下载量: 73
- 被引次数: 0
出版历程
- 收稿日期: 2005-11-15
- 刊出日期: 2006-04-20

EXPERIMENTAL STUDY ON SHEAR CAPACITY OF RC BEAMS STRENGTHENED WITH PRESTRESSED AFRP SHEETS

1.
1. Civil Engineering College,Beijing University of Technology Beijing 100022;
2.
2. Shenzhen Haichuan Industrial Co.,Ltd Shenzhen 518040

摘要

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。
- 预应力 /
- 芳纶纤维布 /
- 永久锚具 /
- 加固 /
- 混凝土梁
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.
- prestress /
- AFRP sheet /
- permanent anchor /
- strengthening /
- RC beam

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参考文献(6)

Triantafillou Thanasis C, Deskovic Nikola. Innovative Pestressing withFRP Sheets: Mechanics of Shor-t Term Behaviors. Journal of EngineeringMechanics, 1991, 117(7): 1 652-1 672

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飞渭, 江世永, 彭飞飞, 等. 预应力碳纤维布加固混凝土受弯构件试验研究. 四川建筑科学研究, 2003,29(2): 56-60

尚守平, 彭晖, 董桦, 等. 预应力碳纤维布材加固混凝土受弯构件的抗弯性能研究. 建筑结构学报, 2003,24(5): 24-30

Raafat E-l Hacha M A, R Gordon Wight, Mark F Green. PrestressedCarbon Fiber Reinforced Polymer Sheets for Strengthening ConcreteBeams at Room and Low Temperatures. Journal of Composites forConstruction, 2004, 8(1): 3-13

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