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FRP-混凝土组合板界面的可靠连接是保证其正常工作的基础。为考察组合板中的界面粘结性能,该文对采取4种连接方式的27个玻璃FRP(GFRP)-混凝土组合构件进行双剪推出试验,根据试验结果分析构件的破坏模式、承载力变化及界面滑移情况。研究结果表明:4种连接方式均获得了较高的粘结强度,可考虑作为GFRP-混凝土组合板的界面抗剪构造措施;GFRP-混凝土界面粘结强度与混凝土强度等级、界面粗糙程度、胶结剂的粘结能力、剪力键布置方式有关,且随混凝土强度等级的提高而有所增大。基于该文的试验设计和试验结果,对试验中的3个试件进行了三维非线性有限元分析。
The reliable connection of the FRP-concrete panel interface is the basis for its proper operation. In order to investigate the interfacial bonding properties of the composite board, 27 glass FRP (GFRP) -structures with four connections were double-scaled and launched. According to the experimental results, the damage modes, the change of bearing capacity, Interface slip condition. The results show that all four kinds of connection methods have high bond strength, which can be taken as the interface shear strength of GFRP-concrete composite board. The bond strength between GFRP-concrete interface and concrete strength, interface roughness, The bonding ability of the agent, the arrangement of the shear bond, and the increase of the strength level of the concrete. Based on the experimental design and experimental results, three-dimensional nonlinear finite element analysis of three specimens in the experiment was carried out.