多筒体支承的大跨空间结构设计与研究

简上体育综合体项目高54m,垂直叠加多种功能的体育活动场馆,通过沿东侧及南侧叠落退让,形成块体穿插的建筑造型.针对这个特殊的建筑体型及功能要求,结构设计采用多筒体支承的大跨空间桁架结构,利用筒体间桁架将上部3～5层重力荷载传递至落地筒体.6个钢筋混凝土筒体由多榀大跨桁架连成整体,通过楼盖的协同作用,共同抵抗水平力.重点...

Structural design and research of multi-tube supported large-span space truss

The Jianshang Sports Complex project is 54 m high, and is a sports venue vertically stacked with multiple functions. By stacking and retreating along the east and south sides, it forms an architectural shape interspersed with blocks. In response to this special building shape and functional requirements, the structural design adopts a multi-tube supported large-span space truss structure, and uses the inter-tube truss to transmit the gravity load of the upper 3~5 floors to the floor-standing tube. The six reinforced concrete tubes are connected as a whole by multiple pieces of large-span trusses, and they jointly resist horizontal forces through the synergy of the floor slab. The structural system and structural design concept were mainly introduced. Synergistic effect analysis was conducted of multi-tubes;reasonable determination and simulation of anti-progressive collapse were conducted;the comfort design standard and strengthening measure of the large-span sports venue were put forward;research was conducted on joint design and structure performance under various working conditions were analyzzed.