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（中國建筑科學研究院，北京 100013）

［摘要］中國國家博物館為具有國際先進水平的大型博物館，其內(nèi)有大量大空間展廳和公共空間采用了鋼桁架結(jié)構(gòu)體系，總面積約30 000m²。介紹了鋼桁架作為結(jié)構(gòu)體系在本項目中的主要優(yōu)勢。采用SAP2000對結(jié)構(gòu)進行了整體分析計算，介紹了分析設計的荷載取值、設計準則、樓板在設計中的考慮、鋼結(jié)構(gòu)預起拱、材料選擇、截面形式選擇、鋼結(jié)構(gòu)合攏、樓蓋舒適度計算等大跨度鋼結(jié)構(gòu)設計中的常見問題。對鋼結(jié)構(gòu)樓屋蓋選用鋼筋桁架樓板進行了介紹。

［關鍵詞］中國國家博物館；鋼桁架；設計；鋼筋桁架樓板；振動舒適度

中圖分類號：TU392文獻標識碼：A文章編號：1002-848X(2011)06-0020-06

Steel structure design of National Museum of China

Liu Feng, Song Tao, Zhao Jida, Xiao Congzhen, Sun Jianchao, Fu Longbiao, Chen Caihua, Li Yi(China Academy of Building Research, Beijing 100013, China)

Abstract:The National Museum of China is a super-large museum with international advanced level, in which there are many exhibition halls and public area with large space requirement. Steel truss system is adopted for these regions, whose total area is about 30000m². The  advantage of the steel truss system in this project was introduced. SAP2000 was used for integral analysis of the structure. The design load and effect, the design principle, the consideration of concrete slab in the steel structure design, the pre-cambering of the steel truss, the selection of material and section shape, the closure of steel structure and the vibration comfort of the floor were discussed, which were all focus in the design of large-span steel structure. Concrete slabs with steel\|bars truss were used for the floor and roof slabs, which were presented  as well.

Keywords:National Museum of China; steel truss; design; slabs with steel-bars truss; vibration comfort

作者簡介：劉楓,碩士,一級注冊結(jié)構(gòu)工程師,Email:liufeng@cabrtech.com。

參考文獻

［1］  孫建超，楊金明，齊國紅，等. 中國國家博物館改擴建工程新館結(jié)構(gòu)設計［J］. 建筑結(jié)構(gòu)，2011，41(6):6\|13.

［2］  趙鵬飛，潘國華，湯榮偉，等. 武漢火車站復雜大型鋼結(jié)構(gòu)體系研究［J］. 建筑結(jié)構(gòu),2009,39(1):1-4.

［3］  陽升，錢基宏，趙鵬飛，等. 武漢火車站大跨度樓面結(jié)構(gòu)振動舒適度研究［J］. 建筑結(jié)構(gòu),2009,39(1):28-30.