【作者】 陈巍； 范重； 吴浩； 胡纯炀； 朱丹； 杨苏； 张宇；

【Author】 CHEN Wei;FAN Zhong;WU Hao;HU Chunyang;ZHU Dan;YANG Su;ZHANG Yu;China Architecture Design & Research Group;

【机构】 中国建筑设计研究院有限公司；

【摘要】 北京通马路综合交通枢纽中央大厅建筑采用钢结构外露的屋盖效果,结构选型和布置要很大程度上考虑建筑效果的表达。屋盖采用双坡形屋面造型,结合箱形交叉梁和X形张弦结构的布置实现大跨度屋盖的设计。屋盖下部两座三层钢结构单体和裙房通过钢屋盖联系成整体,形成中央大厅的建筑效果。本文重点介绍了张弦结构的计算分析方法,通过预应力的调整,完成屋盖竖向变形的控制和构件合理设计。由于屋盖结构造型的要求较高,结构节点较为复杂,包括多向箱形构件不同标高交汇,张弦结构索、撑节点叠加,以及开花柱等情况,通过节点区局部加厚、加劲肋布置、铸钢工艺及节点有限元分析等技术措施,实现了节点美观,经济合理和安全可靠的目的。通过本文的介绍,可以为类似结构体系和张弦结构的设计提供参考。更多还原

【Abstract】 The central hall of Beijing Tongma Road Comprehensive Transportation Hub adopts a steel structure with exposed roof effect, and the selection and layout of the structure should largely consider the expression of the building effect. The roof adopts a double slope roof shape, combined with the layout of box shaped cross beams and X-shaped string structure to achieve the design of a large-span roof. The lower part of the roof consists of two three story steel single units and podiums connected by the steel roof, forming the architectural effect of a central hall. This article focuses on the calculation and analysis method of the tension string structure, Through the adjustment of prestress, the vertical deformation control of the roof and the reasonable design of components are completed. Due to the high requirements for the shape of the roof structure, the structural nodes are relatively complex, including the intersection of multi-directional box shaped components at different elevations, the stacking of tension string structure cables and support nodes, and flowering columns. Through technical measures such as partial thickening of the node area, the arrangement of stiffeners,casting steel technology, and finite element analysis of nodes, the goal of beautiful, economically reasonable, and safe and reliable nodes has been achieved.Through the introduction in this article, it can provide reference for the design of similar structural systems and string structures.更多还原