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
黄健 1阎亮 1熊哲 2陈苇 2吴宝龙 2李丽娟 2何少华 2麦广浩2
作者信息
- 1. 华测工程检测有限公司,广州 510320;广东工业大学土木与交通工程学院,广州 510006
- 2. 广东工业大学土木与交通工程学院,广州 510006
- 折叠
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.
Abstract
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Key words
GFRP-steel composite bar/tensile properties/bilinear characteristics/theoretical model引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据