碳纤维布用于改善斜向受力高强混凝土柱抗震性能的研究  

STUDY ON THE SEISMIC BEHAVIOR OF HIGH-STRENGTH CONCRETE COLUMN WITH CFS SUBJECTED TO AXIAL COMPRESSION AND BIAXIAL BENDING

作　　者：赵彤[1] 刘明国[1] 谢剑[1] 

机构地区：[1]天津大学

出　　处：《土木工程学报》2002年第3期13-19,共7页China Civil Engineering Journal

基　　金：国际合作研究项目 (日本文部省 N0 .1 0 0 4 50 55);天津市青年科学基金 (No .99370 2 0 1 1 )

摘　　要：基于 8根高强混凝土柱在周期反复荷载作用下受力性能的试验 ,本文编制了矩形截面高强混凝土双向压弯构件全过程受力分析计算机程序 ,对影响碳纤维布抗震加固效果的因素进行了分析 ,理论计算结果与试验结果吻合较好。在此基础上 ,本文进一步分析了斜向受力情况下碳纤维布包裹层数、轴压比、荷载角等因素对抗震加固效果的影响。试验结果与电算结果均表明 ,在一定范围内横向缠裹碳纤维布可显著改善高强混凝土柱的延性。An experimental study of eight pieces of high-strength concrete columns under cyclic loading is conducted.At same time,a computer program for the high-strength concrete column strengthened with carbon fiber sheet (CFS) is developed.The ductility of high-strength concrete column is focus studied.The test results are compared with that of the theoretical ones;it is in good agreement.Many factors such as the number of CFS layers,ratio of axial compression stress to strength,and loading angle are analyzed.It is shown that the ductility is improved remarkably.

关 键 词：碳纤维布 斜向受力 高强混凝土 柱 延性 

分 类 号：TU375.3[建筑科学—结构工程]