超高层建筑钢结构连接节点力学特性研究

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中图分类号：TG407；TQ635.2 文献标志码：A文章编号：1001-5922（2026）1-0234-04

Abstract：Taking the steel structure connection nodes of a certain super high-rise building as the research object， this study investigated themechanical propertiesof high-strength boltedconnection nodesusing a finiteelement model，focusing onanalyzing the efects of diffrent preload forces on the tensileandcompressive performance of the connection nodes.Theresults showed thatthe initial preload had litle influenceon the tensile load-displacement curves and compressve load-displacement curves of the steel structure connection nodes in super high-rise buildings，and theyieldloadandultimateloadof theconnection nodes didnotchangesignificantlywith thevariationof initial preload.Inadition，the greatertheinitial preload，thesignificantlyhigherboththeinitial tensilestifessand thetensile stiffess intheplastic stage of the target super high-rise building stelstructureconnection nodes，while theinitial compressive stiffness decreased to a certain extent.

Keywords：super high-rise buildings;steel structure;connection nodes;high strength bolts;mechanical properties

随着国家一系列政策措施的不断出台，以及“一带一路"建设方针的不断深入，由于土地资源紧张，环境保护政策的要求等，更多的超高层建筑项目将在我国不同区域开展[1-2]。（剩余4949字）