The purpose of this study is to investigate the coordinated relationship between energy dissipation and recentering capacity of Self-Centering Beam-Column Joints(SCBCJs),and propose a simplified design method to achieve rational configuration of energy dissipaters and prestressing tendons in SCBCJs.A theoretical restoring force model of SCBCJs is established to explore the coordinated relationship between recentering and energy dissipation capacities of such joints.The feasibility of the simplified design method is verified through finite element analysis.The energy dissipation capacity of the joint increases with the increase of the recentering-to-dissipation ratio R,while the recentering capacity decreases with the increase of R.Under cyclic loading,the hysteresis loop of SCBCJs exhibits a"flag"shape with no residual deformation,indicating strong energy dissipation capacity.The established expression of the coordinated relationship can characterize the energy dissipation and recentering capacities of SCBCJs.The proposed simplified design method achieves rational matching of energy dissipation and recentering capacities in SCBCJs,thereby addressing the issue of energy dissipater and prestressing bar allocation during design.
关键词
自复位梁-柱节点/耗能能力/复位能力/恢复力模型/连接器
Key words
self-centering beam-column joints(SCBCJ)/energy dissipation capability/recentering capability/restoring force model/connector
维普
万方数据