（1 青岛绿城建筑设计有限公司， 青岛 266000； 2 重庆绿城两江建筑设计有限公司， 重庆 401121）

［摘要］重庆西南大学附属中学体育馆是综合性的体育馆。根据建筑的平面跨度，通过张弦梁、带肋结构、立体桁架等多种方案的比选，屋面最终选择了简洁美观、易于施工的空间网格结构，该结构形式用钢量最小并完全能够满足屋面的受力性能的要求。为满足建筑立面效果，本工程的主要竖向构件采用了人字形钢柱，钢柱下采用桩基，通过计算分析，人字形钢柱能够满足竖向和水平承载要求。此外，对本工程还进行了抗震性能化设计，同时在大震弹塑性时程分析的基础上，明确了结构在大震下的薄弱部位和损伤情况，并据此进行有效的设计，保证了结构体系的合理性及可靠性。

［关键词］体育馆； 空间网格； 性能化设计； 抗震设计

中图分类号：TU318， TU398文献标识码：A文章编号：1002-848X(2017)19-0038-05

Structural design of Southwestern University affiliated high school gymnasium in Chongqing

Lü Xiaodong1, Xu Shijie1, Jia Haitao1, Wang Zhengyun1, Huang Jia2

(1 Qingdao Greenton Architectural Design Co., Ltd., Qingdao 266000, China; 2 Chongqing Liang Jiang Greenton Architectural Design Co., Ltd., Chongqing 401121, China)

Abstract:Southwestern University affiliated high school gymnasium in Chongqing is a comprehensive gymnasium. According to architecture plane span, different structural schemes of beam string structure, ribbed structure and three-dimensional truss were compared and the spatial grid structure scheme was finally chosen considering its advantages of simple and beautiful structure and easy construction for the roof. The  structure shape can fully meet the mechanical performance requirements of the  roof with the minimum amount use of steel. In order to meet the effect of the building facade, the main vertical members of the project adopt the herringbone-shaped steel columns, and the pile foundation is used under the steel column. The herringbone-shaped steel column can attain the requirements of the vertical and horizontal bearing capacities through calculation and analysis. In addition, a series of complete performance-based seismic design were conducted on the project under frequent, fortification and rare earthquakes. At the same time, the weak positions and damage conditions of the structure under the rare earthquake were clarified on the basis of the elastic-plastic time-history analysis under rare earthquake. The effective design was made to ensure the rationality and reliability of the structural system.

Keywords:gymnasium; spatial grid; performance-based design; seismic design

作者简介：吕晓东，硕士，工程师，Email：lxlxdj66@163.com。