CFRP约束轴压预压混凝土棱柱体的应力研究  

Stress study on preloaded concrete prism restrained by CFRP under uniaxial loading

作　　者：曹志强[1] 马卫华[1] 柳丽霞[1] 李素娟[1] 华玉[1] 

机构地区：[1]唐山学院,河北唐山063000

出　　处：《混凝土》2009年第7期46-47,51,共3页Concrete

基　　金：河北省科技厅科学技术研究与发展指导计划(07215641)

摘　　要：通过CFRP约束预压混凝土棱柱体的轴压试验,研究了在不同预压力下的CFRP加固预压混凝土棱柱体试件与CFRP加固未预压混凝土棱柱体试件,测得CFRP加固后的极限应力值,并与混凝土棱柱体试件的应力值进行了对比分析,分析了CFRP加固混凝土棱柱体的破坏特征,为实际工程的加固提供了试验依据。Through the test of 42 prisms under axial compression,the ultimate stress of CFRP restrained concrete with different preloading is tested, then compared it with nonpreloaded samples.The main aspects of the research includes the performances contrast on experimental study of CFRP-confined preloaded concrete prismy against unpreloaded or unpreloaded confined by CFRP.The character of breakage about concrete prismy confined by CFRP is analyzed, and provides the experiments normally for actual engineering.

关 键 词：CFRP 预压混凝土 棱柱体 轴压比 应力 

分 类 号：TU528.572[建筑科学—建筑技术科学]