现役混凝土在CFRP约束下的轴压试验研究  

Study on axial compression test of active concrete with CFRP constraint

作　　者：柳丽霞[1] 李瑞敏[1] 李素娟[1] 曹志强[1] 

机构地区：[1]唐山学院,河北唐山063000

出　　处：《自然灾害学报》2009年第2期173-176,共4页Journal of Natural Disasters

基　　金：河北省科技厅科学技术研究与发展指导计划(课题编号:07215641)

摘　　要：地震等自然灾害可以直接破坏主体结构。主要构件的加固、修复成为令人关心的研究课题。研究了方柱在不同预压力下的混凝土应力-应变关系,测得了混凝土、CFRP约束混凝土和CFRP约束预压混凝土棱柱体在轴压作用下的应力、应变数值,进行了混凝土棱柱体在预压后用CFRP加固的再受荷强度影响分析,为实际工程的加固设计提供了试验依据。The earthquake damage of primary structure affects the application of building , therefore, strengthening and repairation of the stracture becomes and important research subject. The active concrete culumns with square section and confined by CFRP sheet were tested under uniaxial compression with different preloaded loading. The main aspects of the research work are experimental study of CFRP - confined prismatic concrete in service. The re- suits give a reference to strengthening design of the structure.

关 键 词：CFRP 现役混凝土 轴压比 预压力 

分 类 号：TU375.3[建筑科学—结构工程]