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.
作者
黄健
阎亮
熊哲
陈苇
吴宝龙
李丽娟
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)
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)。
关键词
GFRP-钢复合筋
拉伸性能
双线性特征
理论模型
GFRP-steel composite bar
tensile properties
bilinear characteristics
theoretical model
