北京理工大学体育文化综合馆钢屋盖结构设计

Steel roof structure design of Beijing Institute of Technologe Athletics Culture Center

北京理工大学体育文化综合馆钢结构屋盖由钢管相贯圆弧拱桁架及曲线屋面桁架组成。根据对圆弧拱桁架及曲线屋面桁架共同工作的分析,结构上采取一些措施减小相互间不利影响,如吊点处采用铰接节点、边支座采用滑动支座等。为增加屋架的出平面刚度,设置了与屋架垂直的空间桁架,最终设计时将其间隔设置,屋架为两两相连,既满足屋架出平面刚度需要,又不对下部结构产生过大反力。

Beijing Institute of Technologe Athletics Culture Center is a middle scale stadium building. The steel structure roof system consists of steel hollow truss arc arch and curve roof truss. It mainly describes the structure design of steel structure roof system and key techniques. According to analysis of co-working of steel hollow truss are arch and curve roof truss, we adopted some measures to minish the disadvantageous influence. For example, adopting hinged support, guided support, setting distant support truss to enhance lateral ridity of curve roof truss etc.