混凝土结构植筋连接件剪拉性能试验研究

Experimental Research on the Shear and Tensile Performance of Connector with Post-installed Rebar in Concrete Structures

为了研究剪拉作用下混凝土结构植筋连接件的力学性能,以荷载形式及加载方式为主要研究参量,对4组混凝土结构植筋连接件进行单剪和剪拉耦合作用加载试验。通过植筋连接件(试件)的承载力、刚度及滞回曲线等分析;结果表明:单剪荷载作用下的试件承载力、刚度和耗能性能等均大于剪拉耦合荷载作用状态;加载方式不影响试件的承载力、刚度及破坏状态等。

For studying the mechanical properties of concrete Structure connector with post-installed rebar under the shear and tensile action,simple shear tests and shear-and-pull coupling loading tests were performed on 4 sets of concrete structural connectors with post-installed rebar which the main parameters studied were the loading method and load form.The analysis of parameters such as bearing capacity,stiffness,and hysteresis curve of the connector (specimen) was mainly performed.The results show that the load-bearing capacity,stiffness and energy dissipation performance of the specimen under the single load are greater than the shear-and-pull coupling loads.The bearing capacity,stiffness,and failure status of the specimens are not affected by the loading method.