FRP开孔板连接件界面剪切性能研究  

Research on Interface Shear Performance of FRP Perforated Plate Connectors

作　　者：李耘宇[1] 石蜀雁 陈舒 梁倩[3] LI Yunyu;SHI Shuyan;CHEN Shu;LIANG Qian(School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan,Hubei 430061,China;China Construction Fifth Engineering Division Co.,Ltd.,Changsha,Hunan 410004,China;Wuhan Electric Power Vocational and Technical College,Wuhan,Hubei 430061,China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,湖北武汉430061 [2]中国建筑第五工程局有限公司,湖南长沙410004 [3]武汉电力职业技术学院,湖北武汉430061

出　　处：《公路工程》2023年第2期153-159,164,共8页Highway Engineering

基　　金：国家自然科学基金青年科学基金项目(51708433)。

摘　　要：为研究纤维增强复合材料(Fiber Reinforced Polymer,FRP)开孔板连接件与混凝土的界面剪切性能,对3组不同开孔个数的FRP开孔板与混凝土连接件进行了拔出试验,基于试验数据建立了有限元模型,进一步研究了开孔直径对界面剪切性能的影响。对比分析了试验结果和数值模拟结果,提出并验证了FRP开孔板界面抗剪极限承载力计算公式。结果表明:增大开孔个数和开孔直径可有效提高界面的抗剪能力;简化公式的计算结果与试验和模拟结果吻合较好。In order to study the interfacial shear performance of Fiber Reinforced Polymer(FRP)perforated plate connector and concrete,pull-out tests of specimens in three groups with different number of holes were carried out.Based on the experimental data,a finite element model was established to further study the effect of the diameter of holes on the interfacial shear performance.The experimental results and numerical simulation results were compared and analyzed,and the formula for calculating interface shear ultimate bearing capacity of FRP perforated plate was proposed and verified.The results show that increasing the number and diameter of holes can effectively improve the shear resistance of the interface.The calculated results of the simplified formula agree well with the experimental and simulation results.

关 键 词：FRP开孔板连接件 界面剪切性能 拔出试验 极限承载力 

分 类 号：TU398[建筑科学—结构工程]