论文部分内容阅读
为了研究PBL连接件的静力学性能和疲劳性能,对国内外学者的相关试验数据进行归纳和总结。在静力学方面,针对两种不同构造形式的PBL连接件,分别从其抗剪承载力、抗剪刚度和粘结-滑移性能3方面进行对比分析;在疲劳性能方面,主要分析了PBL连接件的疲劳破坏形式及机理,并对其疲劳后的剩余承载力进行了研究。结果表明:构造形式和开孔板底部承压对承载力的影响最大;加入贯通钢筋后,抗剪刚度得到了明显的提高;PBL连接件的抗疲劳性能较好,但仍需进一步研究。
In order to study the static and fatigue properties of PBL connectors, the relevant experimental data of domestic and foreign scholars are summarized and summarized. In terms of statics, PBL connectors with two different configurations are compared respectively from the aspects of shear strength, shear stiffness and bond-slip performance. In terms of fatigue properties, PBL connectors are mainly analyzed Pieces of the form of fatigue damage and mechanism, and its residual capacity after fatigue were studied. The results show that the structure and the bearing pressure at the bottom of the perforated plate have the greatest influence on the bearing capacity. The shear rigidity of the PBL joint has been obviously improved after adding the through rebar. The fatigue resistance of the PBL joint is better, but further research is needed.