CFRP约束轴压预压混凝土棱柱体的应力研究
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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.
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.
引文
[1]TENG J G,CHEN J F,SMITH S T.FRP strengthened RC structure[M].England:John Willey&Sons ITD,2002.
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[3]柳丽霞,孟庆娟,马卫华,等.碳纤维(CFRP)约束混凝土轴心抗压性能对比试验研究[J].唐山学院学报,2007,20(4):104-105.
[4]叶列平,谭壮.纤维增强塑料混凝土在土木工程种的应用综述[C]//中国纤维增强塑料(CFRP)混凝土结构学术交流会,北京,2000:5-8.
[5]柳丽霞.CFRP约束轴压受损混凝土的试验研究[J].世界地震工程,2007,23(4):134-138.
[2]THOMAS K.Towards structural forms for composite fiber materials[J].Sructural Engineering International,1996,9(4):232-241.
[3]柳丽霞,孟庆娟,马卫华,等.碳纤维(CFRP)约束混凝土轴心抗压性能对比试验研究[J].唐山学院学报,2007,20(4):104-105.
[4]叶列平,谭壮.纤维增强塑料混凝土在土木工程种的应用综述[C]//中国纤维增强塑料(CFRP)混凝土结构学术交流会,北京,2000:5-8.
[5]柳丽霞.CFRP约束轴压受损混凝土的试验研究[J].世界地震工程,2007,23(4):134-138.
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