作　　者： ; ; ;

机构地区： 同济大学土木工程学院桥梁工程系

出　　处： 《材料导报》 2009年第8期53-58,64,共7页

摘　　要： FRP作为一种新型人工复合材料,因其强度高、密度小、施工简便、耐腐蚀性高、不增加构件截面尺寸等优点,被广泛应用于土木工程结构加固中。FRP约束混凝土本构关系、极限抗压强度、极限应变等力学参数是进行结构强度补强和延性加固的前提和基础。为使FRP约束混凝土更好地应用于工程实践,基于有限元分析手段和国内外近10年来关于FRP约束混凝土的试验研究与分析成果,深入分析和研究了约束比、混凝土柱截面形状、尺寸、强度、FRP用量、模量、FRP强度以及延伸率对FRP约束混凝土力学性能的影响。 As a new artificial complex material, FRP（Fiber reinforced polymer） is widely used to strengthen existing civil construction, due to their advantages in the high tensile strength, light weight, easy to construct, perfect corrosion resistance, no addition to dimensions of members etc. It＇s necessary to clearly comprehend the mechanical property for reinforcement with FRP. For application convenient of FRP in civil engineering, the impacts of confine- ment ratio, section shape, concrete compressive strength and FRP Young＇s modulus, tension strength and strain on mechanical property of concrete confined with FRP are analyzed in this paper by finite element analysis and collecting related studies overseas during recent ten years.

关 键 词： 约束混凝土 有限元分析

领　　域： [建筑科学] [金属学及工艺] [一般工业技术] [金属学及工艺]