碳纤维布与混凝土间粘结性能试验研究  

Experimental Study on Bond Behavior Between Carbon Fiber Composite Sheets and Concrete

作　　者：冯展磊[1] 顾祥林[1] 张伟平[1] 刘丽梅[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2008年第4期110-114,共5页Structural Engineers

基　　金：上海市科学技术委员会科研攻关项目(032112060)

摘　　要：为研究碳纤维布与混凝土间粘结性能,通过15个变换研究参数的碳纤维布-混凝土单剪试验,分析了试验现象和受力机理;建立了局部粘结强度及粘结-滑移本构关系的理论计算公式。试验结果表明:局部粘结强度及达到局部粘结强度时的相对滑移均随混凝土强度的提高而增大,且两者均受碳纤维布与混凝土间宽度比的影响;粘结-滑移曲线形状亦随混凝土强度不同而变化。To investigate the bond behavior between carbon fiber composite sheets and concrete substrate, testing phenomena and mechanism of 15 carbon fiber composite sheet-concrete single shear joints with variable parameters were compared and analyzed, and formulas to calculate the local bond strength and the bond-slip relationship were established, The test results show that both the local bond strength and the corresponding slip increase with the increase of the concrete strength, meanwhile are influenced by the width ratio of carbon fiber composite sheet and concrete, also the bond-slip curve shape alters with the change of the concrete strength.

关 键 词：碳纤维布 混凝土 粘结 

分 类 号：TU375[建筑科学—结构工程]