碳纤维片材加固钢筋混凝土梁的可靠度分析  

RELIABILITY ANALYSIS OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH FRP LAMINATES

作　　者：易小红[1] 何益斌[1] 黄频[1] 刘文竞[1] 张铁成[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《建筑技术开发》2007年第5期12-15,共4页Building Technology Development

基　　金：湖南省科技厅

摘　　要：建立了 FRP 加固钢筋混凝土梁的极限状态方程;讨论了碳纤维片材的耐久性、纤维布与混凝土间界面的粘结耐久性对加固有构件抗力的影响;通过一次二阶矩法计算了《碳纤维片材加固混凝土结构技术规程》(CECS146:2003)加固的钢筋混凝土梁抗弯可靠度指标,计算结果大于3.7,表明满足《建筑结构可靠度设计统一标准》(GB50068-2001)对抗弯可靠度指标的要求。The limit state equation of reinforced concrete beam strengthened with bonded CFRP laminates was established. The influence mechanism of concrete beams resistance after reinforcement is discussed. The liability index of reinforced concrete beam strengthened with bonded FRP laminates in accordance with the “Technical specification for strengthening concrete structure with FRP laminate（ CECS146：2003 ）” was calculated with First Order Second Moment . It was shown that the reliability indices of FRP laminates bonded reinforced concrete beam were over 3.7 and could meet the demands of the “Unified Standard for Reliability Design of Building Structures （ GB50068- 2001 ）”

关 键 词：碳纤维 可靠度 加固 钢筋混凝土 

分 类 号：TU375.1[建筑科学—结构工程]