预应力FRP筋嵌入式加固混凝土梁正截面承载力研究  

Study of calculation methods for flexural capacity of normal section of RC beam strengthened with near-surface mounted (NSM) prestressed FRP reinforced

作　　者：刘锋涛[1] 张鹏[1] 屈建[1] 杨文瑞[1] 

机构地区：[1]广西工学院土木建筑工程学院,广西柳州545006

出　　处：《广西工学院学报》2012年第2期95-101,共7页Journal of Guangxi University of Technology

基　　金：国家自然科学基金(51168006);广西工学院2011年大学生立项(2011035)资助

摘　　要：对预应力纤维增强塑料(FRP)筋嵌入式加固混凝土梁正截面受力状态进行分析,并考虑二次受力对加固梁的影响,通过正截面强度计算的应变协调分析方法 ,对开裂弯矩、屈服弯矩和极限弯矩公式进行推导和优化,得出简单实用的计算公式.计算结果与实验结果吻合良好,可为以后的研究和设计提供参考.Normal section of RC reinforced were analyzed. Through beam strengthened with Near-Surface Mounted （NSM） prestressed FRP the analysis method of the normal section of the coordination between the strain strength, cracking moment ,yield moment and ultimate moment formula were derived and optimized. Simple and practical formula was obtained. The calculated result agrees well with the experimental result, which is provided for future reference in research and design.

关 键 词：嵌入式 FRP 开裂弯矩 屈服弯矩 极限弯矩 二次受力 

分 类 号：TU378[建筑科学—结构工程]