温湿交变对外贴CFRP加固混凝土梁抗弯力学性能的影响研究

李伟文; 严志亮; 隋莉莉; 邢锋; 曹征良

doi:10.13204/j.gyjz201004007

温湿交变对外贴CFRP加固混凝土梁抗弯力学性能的影响研究

doi: 10.13204/j.gyjz201004007

1.
深圳市土木工程耐久性重点实验室深圳大学,广东深圳 518060

基金项目:

国家自然科学基金资助项目(50878130);深圳市科技计划资助项目(SY200806270091A);建设部研究开发项目(2008-K2-25)

详细信息

作者简介:
李伟文，男，1967年出生，副教授。E－mail:liweiwen@szu.edu.cn

中图分类号: TU375.1
计量
- 文章访问数: 142
- HTML全文浏览量: 14
- PDF下载量: 50
- 被引次数: 0
出版历程
- 收稿日期: 2009-08-07
- 刊出日期: 2010-04-20

THE INFLUENCE OF TEMPERATURE-HUMIDITY CYCLES ON BENDING MECHANICAL BEHAVIOR OF CONCRETE BEAMS STRENGTHENED BY CFRP

1.
The Key Lab on Durability of Civil Engineering in Shenzhen,Shenzhen University,Shenzhen 518060,China

摘要

摘要: 温湿交变是造成碳纤维增强复合材料(CFRP)加固钢筋混凝土梁性能退化的主要原因之一。通过试验，研究在温湿交变下碳纤维增强复合材料加固钢筋混凝土的力学特性，并观察其裂缝开展情况；在此基础上分析碳纤维增强复合材料加固钢筋混凝土梁在温湿交变条件下的破坏模式。试验结果与正常环境下的测试数据进行对比，得出了温湿交变对CFRP加固钢筋混凝土梁的影响程度和劣化机理。
- 碳纤维布 /
- 温湿交变 /
- 混凝土梁 /
- 力学特性 /
- 劣化机理
Abstract: The temperature-humidity cycle's action is one of major factors,which causing the deterioration of concrete structures,especially in the high temperature-humidity areas of the south of China. In this study,the influence of temperature-humidity cycles on mechanical behavior of concrete beams strengthened by carbon fiber reinforced plastics is explored,and crack phenomena are observed of concrete beams based on the fast temperaturehumidity tests. Moreover,the destructive pattern of concrete beams strengthened by CFRP with the temperaturehumidity cycle's action is analyzed. The test results are compared with experimental data under normal environmental condition,by which the deterioration mechanism of mechanical properties, and influenced degree of concrete structures strengthened by CFRP with temperature-humidity cycle's action are obtained.
- CFRP /
- temperature-humidity cycles /
- concrete beam /
- mechanical properties /
- deterioration mechanism

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参考文献(16)

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