
科学技术与工程

中国技术经济学会
空间钢框架-耗能墙-钢管混凝土桁架消能摇摆结构的抗震性能
刘文洋 , 蔡孜涵 , 白那 , 张荣花
科学技术与工程 ›› 2025, Vol. 25 ›› Issue (34) :14808-14816
空间钢框架-耗能墙-钢管混凝土桁架消能摇摆结构的抗震性能
Seismic Performance of Space Steel Frame Structure with Energy Dissipating Walls and Concrete Filled Steel Tube Swing Trusses
为提升钢框架结构的抗震韧性,将开洞屈曲约束钢板墙和钢管混凝土摇摆桁架与钢框架结构结合,形成钢框架-耗能墙-钢管混凝土桁架消能摇摆结构。利用开洞屈曲约束钢板墙提高结构的耗能能力,利用钢管混凝土摇摆桁架提高结构的震后可恢复性。对空间钢框架-耗能墙-钢管混凝土桁架消能摇摆结构进行了实际地震动作用下的动力非线性分析,系统研究其减震效果和震后可恢复性。结果表明:开洞屈曲约束钢板墙能够有效地耗散地震能量,减轻框架结构的地震损伤。钢管混凝土摇摆桁架能够协调结构的层间变形从而避免结构出现薄弱层破坏,且桁架底部设置的预应力钢绞线能够大幅降低结构的残余变形,提高结构震后可恢复性。提出的新型结构体系可用于新建建筑或对既有建筑进行抗震加固与改造。
In order to improve the seismic resilience of steel frame structures, steel frame structure with energy dissipating walls and concrete filled steel tube swing truss was proposed. In the proposed structure, holed buckling restrained steel plate shear walls(holed BRW) were used to improve the energy dissipating capacity of structure, and the concrete filled steel tube swing trusses were used to enhance the post-earthquake resilience of structure. Dynamic nonlinear analyses of space steel frame structure with energy dissipating walls and concrete filled steel tube swing trusses under actual seismic motion were conducted to investigate the seismic response reduction effect and post-earthquake recoverability. The analysis results show that the holed BRWs can effectively dissipate the seismic energy and reduce the seismic damage of frame structures. The concrete filled steel tube swing trusses make the inter-storey deformation of structure more uniform to avoid weak storey damage. Furthermore, the prestressed steel strands at the bottom of swing truss can effectively reduce the residual inter-storey deformation of structure and improve the post-earthquake resilience. The proposed novel structure can be used for new buildings or seismic reinforcement and renovation of existing buildings.
钢框架 / 屈曲约束钢板墙 / 钢管混凝土 / 摇摆结构 / 抗震韧性
steel frame / buckling restrained steel plate shear wall / concrete filled steel tube / swing structure / seismic resilience
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