- 摘 要
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(深圳市歐博工程設計顧問有限公司, 深圳 518053)
[摘要]龍華文體中心項目位于深圳市龍華區,建筑高度23.85m,為多層鋼筋混凝土框架結構,有大跨度鋼網架結構屋蓋。介紹了基礎設計和主體結構設計的情況,由于坡道和2層(屋面)大平臺橫跨各個樓層,使得水平力具有多個向下傳遞的路徑,各樓層分界不明顯,與常規項目不同。理論分析表明,層的概念不影響結構受力,僅數據指標的宏觀表現形式不同,采用三維空間結構計算軟件可合理計算結構反應并進行設計。常規項目按層模型去統計指標數據來衡量整體結構水平和豎向的規則性,不適用于本工程。采用基于性能的設計方法,對構件進行小震、中震、大震的性能目標復核,并對超長結構進行技術分析和構造加強,經多軟件復核對比,構件滿足各工況下的設計目標要求。
[關鍵詞]龍華文體中心;框架結構;鋼網架屋蓋;PHC預應力管樁;超長結構;溫度應力;性能化設計
中圖分類號:TU318,TU375,TU391 文獻標識碼:A文章編號:1002-848X(2021)24-0051-06
Structural design of Longhua Cultural and Sports Center
HE Yuanming, HUANG Yongjun, WU Jun, ZHONG Xuefu, HE Yiyun, HE Zheyu, YI Zhijiang, MAO Tongxiang
(Shenzhen AUBE Architectural Engineering Design Co., Ltd., Shenzhen 518053,China)
Abstract: Longhua Cultural and Sports Center is located in Longhua district, Shenzhen, with a building height of 23.85m. It is a multi-story reinforced concrete frame structure with a large-span steel grid structure roof. The foundation design and main structure design were introduced. Because of the ramp and 2-storey (roof) large platform span each floor, there are many paths for the downward transmission of the horizontal forces, and the boundary of each floor is not obvious, which is different from the conventional project. Theoretical analysis shows that the concept of floor don’t affect the internal force of the structure, but the macro manifestations of data indicators are different. The structural response could be reasonably calculated and designed by using three-dimensional spatial structure calculation software. Conventional projects measure the horizontal and vertical regularity of the overall structure according to the statistical index data of the floor model, which is not applicable to the project. The performance-based design method was adopted to recheck the performance objectives of components under small earthquake, medium earthquake and large earthquake, and carried out technical analysis and structural strengthening for super long structures. Through multi software recheck and comparison, the components met the design objectives under various working conditions.
Keywords:Longhua Cultural And Sports Center; frame structure; steel grid roof ; PHC prestressed pipe pile; super long structure; temperature stress;performance-based design
作者簡介:何遠明,碩士,高級工程師,Email:heyuanming237@sina.com。