[提要]  通过重庆大学体育馆带悬臂看台预应力框架设计，总结出在预应力结构设计中应合理利用预应力钢筋线型的变化以及截面尺寸的局部变化等手段，解决在框架不同部位设计弯矩变化较大的问题。同时，在预应力结构设计中要充分考虑施工的可行性。建议在某些具体情况下，通过计算分析后适当放宽裂缝控制标准。
[关键词]  体育馆建筑  预应力框架  裂缝控制  悬臂

Based on the design of a prestressed frame with cantilever in a gymnasium, the problem that the moment varies in different part of the frame is solved by varying prestressing tendon style and local section height. At the same time, the feasibility of design and construction have been considered. It is proposed to relax the standard of crack control in some case with reliable calculation.
Keywords: prestressed frame; crack control; cantilever; gymnasium