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（1 青島綠城建筑設(shè)計(jì)有限公司， 青島 266000； 2 重慶綠城兩江建筑設(shè)計(jì)有限公司， 重慶 401121）

［摘要］重慶西南大學(xué)附屬中學(xué)體育館是綜合性的體育館。根據(jù)建筑的平面跨度，通過(guò)張弦梁、帶肋結(jié)構(gòu)、立體桁架等多種方案的比選，屋面最終選擇了簡(jiǎn)潔美觀、易于施工的空間網(wǎng)格結(jié)構(gòu)，該結(jié)構(gòu)形式用鋼量最小并完全能夠滿足屋面的受力性能的要求。為滿足建筑立面效果，本工程的主要豎向構(gòu)件采用了人字形鋼柱，鋼柱下采用樁基，通過(guò)計(jì)算分析，人字形鋼柱能夠滿足豎向和水平承載要求。此外，對(duì)本工程還進(jìn)行了抗震性能化設(shè)計(jì)，同時(shí)在大震彈塑性時(shí)程分析的基礎(chǔ)上，明確了結(jié)構(gòu)在大震下的薄弱部位和損傷情況，并據(jù)此進(jìn)行有效的設(shè)計(jì)，保證了結(jié)構(gòu)體系的合理性及可靠性。

［關(guān)鍵詞］體育館； 空間網(wǎng)格； 性能化設(shè)計(jì)； 抗震設(shè)計(jì)

中圖分類號(hào)：TU318， TU398文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

作者簡(jiǎn)介：呂曉東，碩士，工程師，Email：lxlxdj66@163.com。