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| 外贴CFRP加固RC简支梁粘结界面温度剪应力分析 | |
| 作者姓名： | 蒋鑫 彭晖 张建仁 胡柏学 黄浩 |
| 作者单位： | 1. 湖南省交通科学研究院,湖南长沙,410015 2. 长沙理工大学桥梁工程安全控制教育部重点实验室,湖南长沙,410004 3. 湖南省交通科学研究院,湖南长沙410015;长沙理工大学桥梁工程安全控制教育部重点实验室,湖南长沙410004 |
| 基金项目： | 国家自然科学基金项目(51008036);湖南省自然科学基金项目(10JJ4038);交通运输部应用基础研究项目(2010318000006);湖南省研究生创新基金项目(CX2010B356) |
| 摘 要： | 在良好的粘结状态下,基于平截面假定与线弹性假定,建立了CFRP加固RC简支梁的本构关系与力学平衡微分方程,再引入边界条件,对碳纤维增强复合板材加固钢筋混凝土简支梁的粘结界面温度剪应力的函数表达式进行了推导.通过表达式,阐明了温度剪应力与混凝土梁的抗弯刚度和粘贴层的硬度等因素有关.为加固结构在服役期健康状况评估和结构设计提供参考. |
| 关 键 词： | CFRP 加固 RC简支梁 温度 剪应力 |
Temperature shear stress analysis for bonding interface of simply supported RC beams strengthened with externally bonded CFRP |
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| Authors: | JIANG Xin PENG Hui ZHANG Jian-ren HU Bo-xue HUANG Hao |
| Institution: | 1(1.Hunan Institute of Communication Research,Changsha 410015,China; 2.Key Lab for Safety Control of Bridge Engineering of Ministry of Education, Changsha University of Science & Technology,Changsha 410004,China) |
| Abstract: | Based on the hypothesis of plane and linear elastic,differential equations were built according to the plane finite element theory and the mechanic balance relationship,temperature shear stress function of simply supported reinforced concrete(RC) beams strengthened with externally bonded carbon fiber reinforced polymer(CFRP) plates was derived in terms of boundary condition under perfect bonding conditions.It was shown from results that there are many factors such as flexural rigidity of concrete beams and toughness of adhensive influence temperature shear stress.It will give a reference to evaluate the health condition and design method for simply supported RC structures strengthened with externally bonded CFRP plates |
| Keywords: | CFRP strengthen simply supported RC beams temperature shear stress |
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