新疆自然环境下外贴纤维增强材料加固混凝土梁受弯性能的试验研究

何原野; 刘清; 王克新

doi:10.13204/j.gyjz201203016

新疆自然环境下外贴纤维增强材料加固混凝土梁受弯性能的试验研究

doi: 10.13204/j.gyjz201203016

1.
新疆大学建筑工程学院,乌鲁木齐 830047

基金项目:

新疆维吾尔自治区高等学校科研计划重点项目(XJEDU2010I10);新疆大学横向科研项目;新疆大学天山学者讲座教授科研项目

详细信息

作者简介:
何原野，男，1987年出生，硕士研究生。E-mail:jj.heyuanye@163.com

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- 文章访问数: 117
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- 被引次数: 0
出版历程
- 收稿日期: 2011-08-25
- 刊出日期: 2012-03-20

EXPERIMENTAL STUDY ON BENDING BEHAVIOR OF FRP STRENGTHENED RC BEAMS IN XINJIANG NATURAL CONDITIONS

1.
College of Architectural and Civil Engineering,Xinjiang University,Urumqi 830047,China

摘要

摘要: 研究吐鲁番地区自然环境对纤维增强材料(FRP)加固混凝土梁受弯性能的影响,制作了8根试验梁,其中4根进行室内试验;4根放置在吐鲁番地区鄯善县,自然老化1 881 d后,进行受弯试验,并与在室内环境养护条件下的FRP加固混凝土梁的受弯性能进行对比。试验结果表明:环境作用后,加固梁的承载力,延性和刚度变化不大,破坏形式主要是玻璃纤维增强材料(GFRP)U型箍局部剥离,FRP布被崩断。说明新疆吐鲁番地区大温差、强紫外线的自然条件对FRP加固混凝土梁的受弯性能影响程度较小。
- FRP /
- 自然环境 /
- 混凝土梁 /
- 受弯性能
Abstract: It was studied the influence of Turpan natural environment on bending behavior of FRP strengthened RC beams.Eight pieces of experimental beams were made,4 beams for indoor test;the others placed outdoor,after 1 881 d natural aging,bending test was done,and the bending performances of FRP strengthened RC beams between indoor and outdoor environment were compared.The test results show that after the effects of environment,the bearing capacity,ductility and stiffness of strengthened beams have little change,damage forms are the partial peeling of GFRP U-hoops and the break of FRP tensile.Which shows that influence on the bending performance of FRP strengthened RC beams is small in Xinjiang Turpan natural conditions,where large temperature difference and strong ultraviolet ray exist.
- FRP /
- natural environment /
- concrete beam /
- bending behavior