To reduce the damage to a frame structure filled with a reinforced concrete wall and improve its mechani-cal properties,a gap was set between the frame and wall,where energy dissipation connectors were installed to pro-tect the main structure effectively.Therefore,ABAQUS was used to analyze the internal force and failure mode characteristics of different types of energy dissipation connectors.Typical slipping connectors were installed in slits on both sides of the steel frame-composite wall structure to dissipate energy.The results show that the length of the horizontal segment of the U-shaped connector greatly influences the ultimate deformation of the connector.The bi-linear ideal elastoplastic load-displacement curve of the U-shaped connector under vertical compression and horizon-tal shear represents a load-displacement relationship.The residual structural deformation with energy dissipation connectors is small at a relatively small drift ratio,indicating a good self-centering performance.Moreover,it can satisfy the requirement of large structural deformation.The design formulas of energy dissipation connectors were proposed according to the limit state of a load-bearing capacity based on the analysis results.
关键词
U形连接件/自复位性能/受力模式/塑性损伤/滞回曲线/装配式结构/框架-复合墙/抗震性能
Key words
U-shaped/connectors/self-centering performance/force mode/calculation of bearing capacity/hyster-etic curve/prefabricated structure/frame-composite wall/seismic performance
维普
万方数据