新型GFRP-钢复合筋材料拉伸性能测试  

Tensile Property Test for a New Type of GFRP-Steel Composite Bars

作　　者：黄健 阎亮 熊哲[2] 陈苇 吴宝龙 李丽娟[2] 何少华 麦广浩 HUANG Jian;YAN Liang;XIONG Zhe;CHEN Wei;WU Baolong;LI Lijuan;HE Shaohua;MAI Guanghao(Huace Engineering Testing Co.,Ltd.,Guangzhou 510320,China;School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]华测工程检测有限公司,广州510320 [2]广东工业大学土木与交通工程学院,广州510006

出　　处：《工业建筑》2024年第4期219-227,共9页Industrial Construction

基　　金：国家自然科学基金项目(12032009)。

摘　　要：对新型GFRP-钢复合筋进行拉伸性能测试,分析了复合筋的破坏过程和力学性能指标。同时构建了新型GFRP-钢复合筋的应力-应变关系理论模型,并将其与试验结果进行对比分析。结果表明:GFRP-钢复合筋的应力-应变曲线表现出明显的双线性特征,其在内芯钢筋屈服后仍具备稳定的抗变形能力,所建立的应力-应变关系理论模型与试验结果吻合较好,证明了该模型能够有效地反映复合筋的拉伸性能。Tensile tests were conducted on a new type of GFRP-steel composite bars,the failure process and mechanical performance indicators of the composite bars were analyzed.A theoretical model of stress-strain relations for the new type of GFRP-steel composite bars was constructed,and compared with the test results for analysis.The results showed that the stress-strain curves of the GFRP-steel composite bars exhibited obvious bilinear characteristics,and it still maintained a stable deformation resistance after the yielding of the inner core steel rebars.Furthermore,the theoretical model of stress-strain relations established in the paper matched well with the test results,demonstrating the effectiveness of the model in reflecting the tensile properties of the composite bars.

关 键 词：GFRP-钢复合筋 拉伸性能 双线性特征 理论模型 

分 类 号：TU502[建筑科学—建筑技术科学]