[1]李伟文,严志亮,曹征良,等.混凝土粗糙度对CFRP与混凝土粘结性的影响[J].深圳大学学报理工版,2007,24(1):13-17.
 LI Wei-wen,YAN Zhi-liang,CAO Zheng-liang,et al.Effect of concrete surface roughness on the bonding performance between the CFRP and concrete[J].Journal of Shenzhen University Science and Engineering,2007,24(1):13-17.
点击复制

混凝土粗糙度对CFRP与混凝土粘结性的影响()
分享到:

《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年1期
页码:
13-17
栏目:
土木建筑工程
出版日期:
2007-01-30

文章信息/Info

Title:
Effect of concrete surface roughness on the bonding performance between the CFRP and concrete
文章编号:
1000-2618(2007)01-0013-05
作者:
李伟文1严志亮1曹征良1潘金龙2
1)深圳大学土木工程学院;深圳市土木工程耐久性重点实验室,深圳518060;
2)香港科技大学土木工程学院,香港
Author(s):
LI Wei-wen1YAN Zhi-liang1CAO Zheng-liang1and? PAN Jin-long2
1)College of Civil Engineering,Shenzhen Municipal Key Laboratory of Durability for Civil Engineering Structure,Shenzhen University,Shenzhen 518060, P.R.China
2)Department of Civil Engineering,Hong Kong University of Science and Technology,Hong Kong
关键词:
混凝土结构碳纤维布复合材料单剪试验粘结性能粘结界面剥离破坏
Keywords:
concretecarbon fiber reinforced polymers single shear testbond behaviorconcrete surfacede-bonding
分类号:
TU 775;TU 37
文献标志码:
A
摘要:
采用单剪拉拔试验分析碳纤维布复合材料(Carbon fiber reinforced polymers,CFRP)加固混凝土结构因不同的混凝土表面处理而出现不同的粘结界面破坏形式,以及对粘结强度的影响.着重根据粘结-滑移关系曲线分析在不同应力作用下碳纤维布复合材料的应变和应力分布,以及剪应力在界面的传力机理.试验结果显示,混凝土表面的处理对CFRP加固混凝土结构的粘结性能影响较大,单剪试验中粘结剥离破坏过程具有明显的规律性.最后,根据试验结果提出建议以供FRP加固混凝土结构工程应用参考.
Abstract:
An experimental study was made to obtain clear understanding of the underlying mechanisms of the bonding strength of reinforced concrete structures with carbon fiber reinforced polymers (CFRP).The paper examines the load and strain data from a series of single shear pull-off tests,in which CFRP sheet is used to strengthen the concrete with different bond surface treatments.The concrete surface roughness has effect on the bond performance between the concrete and fiber reinforced polymers sheet.Key words:concrete;carbon fiber reinforced polymers; single shear test;bond behavior;concrete surface;de-bonding

参考文献/References:

[1]Wu Z,Hemdan S. FRP加固混凝土受弯构件在不同剪跨比的剥离破坏[C]//第七届纤维增强复合材料(FRP)加固混凝土结构国际会议论文集. 密歇根州:美国混凝土协会,2005.411-425(英文版).
[2]McSweeney B M,Lopez M M. FRP-混凝土的粘结性能:通过拉拔试验研究粘结强度的影响因素[C]// 第七届纤维增强复合材料(FRP)加固混凝土结构国际会议论文集. 密歇根州: 美国混凝土协会,2005. 441-460(英文版).
[3]Christopher K Y Leung.基于能量的FRP纤维布与混凝土表面的剥离模型[J].美国土木工程师会,2006,132(6):583-593(英文版).
[4]腾锦光,陈建飞,Smith S T,等. FRP加固混凝土结构[M].李 荣,腾锦光,顾磊,译. 北京:中国建筑工业出版社,2005.
[5]潘金龙. 纤维增强复合材料(FRP)加固混凝土梁因裂缝导致剥离破坏:试验和理论分析[D]. 香港: 香港科技大学,2005(英文版).
[6]Malvar L J,Joshi N R,Novinson T. 环境对碳纤维(CFRP)加固混凝土结构短期粘结性能影响研究[J].建筑复合材料,2003,7(1):58-63(英文版).
[7]高 颖,曹征良.碳纤维布加固钢筋混凝土梁的受弯承载力计算[J].深圳大学学报理工版,2005,22(1):85-90.
[1]Wu Z,Hemdan S. De-bonding in FRP-strengthened flexural members with different shear-span ratios[C]// 7th International Symposium Fiber-reinforced Polymer (FRP) Reinforcement for Concrete Structures. Michigan: American Concrete Institute,2005. 411-425.
[2]McSweeney B M,Lopez M M. FRP-concrete bond behavior: a parametric study through pull-off testing[C]//7th International Symposium Fiber-reinforced Polymer (FRP) Reinforcement for Concrete Structures. Michigan: American Concrete Institute,2005. 441-460.
[3]Christopher K Y Leung. Energy-based modeling approach for de-bonding of FRP plate from concrete substrate[J]. Journal of Engineering Mechanics. ASCE. 2006,132(6): 583-593.
[4]TENG Jin-guang,CHEN Jian-fei,Smith S T,et al. FRP Strengthened RC Structures [M]. LI Rong,TENG Jin-guang,GU Lei. Beijing: China Construction and Industry Publishing Company,2005 (in Chinese).
[5]PAN Jin-long. Crack-induced de-bonding failure in fiber reinforced plastics (FRP) strengthened beams: experimental and theoretical analysis [D]. Hong Kong: The Hong Kong University of Science and Technology. 2005.
[6]Malvar L J,Joshi N R,Novinson T. Environmental effects on the short-term bond of carbon fiber-reinforced polymer (CFRP) composites[J]. Journal of Composites for Construction,2003,7(1):58-63.
[7]GAO Ying,CAO Zheng-liang.Calculations of flexural strengths for reinforced concrete beams repaired with CFRP[J].Jounal of Shenzhen University Science and Engineering,2005,22(1):85-90(in Chinese).

备注/Memo

备注/Memo:
收稿日期:2006-09-19;修回日期:2006-12-21
基金项目:国家自然科学基金资助项目(50538060);深圳市科技计划费用资助项目(200522)
作者简介:李伟文(1967-),男(汉族),广东省东莞市人,深圳大学副教授.E-mail:liweiwen@szu.edu.cn
通讯作者:曹征良(1948-),男(汉族),深圳大学教授、博士.E-mail:cao_zl@szu.edu.cn
更新日期/Last Update: 2007-12-09