- 摘 要
-
(北京市建筑設計研究院有限公司， 北京 100045)
［摘要］潞城全民健身中心是北京市行政副中心的全民健身體育配套工程。結構整體地下1層，地上分為游泳滑冰館、網球館、全民健身館、籃球館、旋轉坡道五個相互獨立的結構單元。建筑地下采用鋼筋混凝土框架結構，地上為鋼框架結構，各館大跨度體育空間采用平面鋼桁架。針對不同體育場館功能及特點，分別對各場館進行了力學性能分析。完成了籃球館大跨度鋼屋蓋結構方案對比，對籃球館長柱及屋蓋進行屈曲分析以保證結構整體穩(wěn)定性。對游泳滑冰館重載大跨度樓蓋進行抗連續(xù)倒塌分析及關鍵節(jié)點受力分析，考慮有節(jié)奏運動對樓蓋使用功能的影響，以網球館大跨度樓蓋為例介紹了樓板舒適度分析，驗證了結構具體良好的承載能力及剛度。旋轉坡道建筑造型獨特，設計采用斜撐+懸掛結構體系實現(xiàn)復雜造型，通過承載力分析、舒適度分析及鋼支座有限元分析等論證了結構體系合理安全。
［關鍵詞］潞城全民健身中心；大跨度鋼屋（樓）蓋；屈曲分析；抗連續(xù)倒塌；樓板舒適度分析；旋轉坡道
中圖分類號：TU318 文獻標識碼：A文章編號：1002-848X(2021)19-0061-05
Structural design on Lucheng National Fitness Center
LI Qian, SONG Zikui, WEI Dong, CHEN Yaxin, FANG Qixiao
(Beijing Institute of Architectural Design, Beijing 100045， China)
Abstract: Lucheng National Fitness Center is the national fitness sports supporting project for the City Sub-center of Beijing. The overall structure is 1 floor underground. The above-ground part is divided into five independent structural units: swimming and skating hall, tennis hall, national fitness hall, basketball hall and rotating ramp. Reinforced concrete frame structure is adopted underground and steel frame structure is adopted above ground. The large span sports space of each stadium adopts plane steel truss. According to the functions and characteristics of different stadiums, the mechanical properties of each stadium were analyzed. The comparative analysis of large span steel roof structure schemes of basketball hall and the buckling analysis of the long column and the roof were completed in order to ensure the overall stability of the structure. The large span, heavy-load floor of the swimming and skating hall was selected for anti-progressive collapse analysis and key joint mechanical analysis. Considering the influence of rhythmic movement on the use function of the floor, the comfort analysis of the large span floor of the tennis hall had been carried out and the calculation results showed that the structure has sufficient bearing capacity and stiffness. The architectural modeling of rotating ramp is innovative and unique, and the brace+suspension system is used to achieve the complex shape. Then the bearing capacity analysis, comfort analysis and finite element analysis of steel bearing were conducted to verify the safety of the structure.
Keywords:Lucheng National Fitness Center； large span steel roof； buckling analysis； anti-progressive collapse； floor comfort analysis； rotating ramp
作者簡介：李芊，碩士，高級工程師，Email:liqian@biad.com.cn。
