北京科技大学体育馆屋面钢网架结构设计

北京科技大学体育馆(2008奥运会柔道、跆拳道比赛馆)屋面钢结构采用大跨度双层钢网架,荷载较大,建筑做法复杂多样。设计中,比赛馆采用改进型双向正放网架的结构形式,游泳馆采用双向正交斜放网架的结构形式。节点主要采用螺栓球,部分受力较大的部位采用焊接板式节点。比赛馆采用板式橡胶垫支座,并根据工程需要在特殊部位采用了可滑动节点的设计。经过精心设计,取得了安全、适用、美观、经济等综合效益。

STRUCTURAL DESIGN OF LATTICED STEEL-ROOFS IN BEIJING UNIVERSITY OF SCIENCE & TECHNOLOGY

Large-span latticed double-layer structures are used for the steel roofs' design of Judo & Taekwondo Gymnasium for Beijing Olympic Games 2008 in Beijing University of Science and Technology.There are various of equipments with heavy weights on the structures.In this project,a developed bidirectional latticed structure supported perpendicularly on the edges is designed for the main roof,while a bidirectional one supported at a 45°angle for the swimming pool.Most of the nodes are designed as bolt-balls,the others under large forces as welded with plates.Rubber bearings are used for the main roof,and a type of sliding connection is used for the hanging of glass curtain walls.An overall benefit of safety,applicability,esthetics and economics is gained with the elaborate design.