GFRP/钢筋混合配筋混凝土梁的受弯试验研究  

Experimental study on flexural behavior of hybrid GFRP bar and steel bar reinforced with concrete beams

作　　者：王勃[1] 苗贺 WANG Bo;MIAO He(School of civil engineering,Jilin Jianzhu university,Changchun 130118,China)

机构地区：[1]吉林建筑大学土木工程学院,长春130118

出　　处：《吉林建筑大学学报》2022年第2期7-11,共5页Journal of Jilin Jianzhu University

基　　金：国家自然科学基金项目(51178206);吉林省高校“十三五”科研规划项目(JJKH20170253KJ).

摘　　要：本文采用4根GFRP/钢筋混合配筋混凝土梁进行受弯性能试验,并用1根钢筋混凝土梁和1根GFRP筋混凝土梁作为对比,结合试验过程分析了梁的破坏状态,给出了3种配筋梁的荷载-挠度曲线.通过对试验结果分析表明:GFRP筋钢筋混合配筋混凝土梁发生了适筋破坏和超筋破坏;混合配筋梁和钢筋混凝土梁的荷载挠度曲线分为3个阶段;GFRP筋混凝土梁挠度曲线只有2个阶段.In this paper,four GFRP/reinforced concrete beams were used to test the bending performance,and a reinforced concrete beam and a GFRP reinforced concrete beam were compared.Combined with the test process,the failure state of beams was analyzed and the load deflection curves of three kinds of reinforced beams were given.The analysis of the test results shows that the failure of proper reinforcement and the failure of excessive reinforcement occur in the GFRP reinforced concrete beam.The deflection curves of hybrid reinforced and reinforced concrete beams can be divided into three stages,while the deflection curves of GFRP reinforced concrete beams only have two stages.

关 键 词：混合配筋 GFRP筋 受弯试验 混凝土梁 

分 类 号：TG139.6[一般工业技术—材料科学与工程]