GFRP筋混凝土短柱偏压性能试验研究  

Experiment Research on Mechanical Behavior of Eccentrically Loaded Short Concrete Column Reinforced with GFRP Bars

作　　者：孙丽[1] 王世光[1] 侯娜[1] 张娜[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《建筑科学与工程学报》2014年第4期23-28,共6页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金项目(51178277);教育部新世纪优秀人才支持计划项目(NCET-12-1013);辽宁省高等学校优秀人才支持计划项目(LR2012018);沈阳市科技计划项目(F14-192-4-00)

摘　　要：进行了3组玻璃纤维增强复合材料(GFRP)筋混凝土短柱偏心受压破坏试验,对GFRP筋混凝土偏心受压柱的破坏形态、侧向挠度、内部筋体应变与混凝土表面的应变等试验结果进行了分析。结果表明:GFRP筋混凝土柱的破坏形式为受压破坏,随着初始偏心距的减小,GFRP筋混凝土柱的承载力有增大趋势;GFRP筋作为受压筋与混凝土的协同作用良好,且试件加载时的初始偏心距越小,混凝土与GFRP筋的协同作用越好;GFRP筋有较好的抗压性能,作为受力筋应用到混凝土受压构件中有很大的优越性。T hree groups of compressive failure experiments on eccentrically loaded short concrete column reinforced with glass fiber reinforced polymer （GFRP） bars were carried out .The failure pattern , lateral deflection , internal reinforcement strain and concrete surface strain of the compressed columns were analyzed . The results show that the failure pattern of the concrete column reinforced with GFRP bars is compressive damage ,and the bearing capacity of concrete columns reinforced GFRP bars tends to increase as the initial eccentricity decreases .Meanwhile , GFRP bar working with concrete performs well as the compression bar ,and it works better with concrete under the smaller initial eccentricity .GFRP bar acting as compressive bar in concrete is of great superiority due to its good compressive capacity .

关 键 词：GFRP筋 混凝土短柱 偏心距 破坏形态 承载力 侧向挠度 

分 类 号：TU377.9[建筑科学—结构工程]