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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）

［摘要］安徽蚌埠體育中心體育場(chǎng)鋼屋蓋采用空間鋼結(jié)構(gòu)體系，下部看臺(tái)采用現(xiàn)澆混凝土框架結(jié)構(gòu)體系,罩棚由兩個(gè)高低大小均不相同且各個(gè)方向均不對(duì)稱的弧形組成，單個(gè)罩棚呈現(xiàn)由高向低變化、由大向小變化的水滴形態(tài)，兩個(gè)罩棚沒(méi)有連接卻在空中互相呼應(yīng)，整體呈現(xiàn)臥龍擺尾的形態(tài)；介紹了鋼屋蓋關(guān)于大、小兩個(gè)參數(shù)化選型的流線型罩棚的結(jié)構(gòu)選型及布置；通過(guò)運(yùn)用調(diào)整結(jié)構(gòu)構(gòu)造、體外預(yù)應(yīng)力張拉索和調(diào)頻質(zhì)量阻尼器三種方法，解決了由于單個(gè)柱支承單榀鋼架且罩棚后端沒(méi)有落地,導(dǎo)致整體結(jié)構(gòu)有前傾態(tài)勢(shì)、懸挑鋼梁撓度過(guò)大以及結(jié)構(gòu)振動(dòng)影響觀看效果等技術(shù)難點(diǎn)。

［關(guān)鍵詞］蚌埠體育中心體育場(chǎng)； 流線型罩棚； 預(yù)應(yīng)力張拉索； 調(diào)頻質(zhì)量阻尼器

中圖分類號(hào)：TU391文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)18-0104-06

Design of asymmetric large-cantilever streamlined curved steel shed structure for Bengbu Sports Center Stadium in Anhui 

Wu Xueli, Wang Tiefeng, Lei Xiaodong, Gao Jianmin

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The steel roof of Bengbu Sports Center Stadium in Anhui adopts spatial steel structure system, and the lower stand adopts cast-in-place concrete frame structural system. The shed is composed of two arcs with different heights and sizes and asymmetrical directions. The single shed presents the shape of water droplets changing from high to low and from large to small. The two sheds are not connected but echo each other in the air, presenting the form of dragon swinging the tail as a whole. The structural selection and layout of streamlined sheds with large and small parameters for steel sheds were introduced. A single steel frame was supported by a single column and the rear end of the shed does not support on the ground, so there were technical difficulties such as forward inclination of the whole structure, excessive deflection of cantilever steel beams and the structural vibration effect on the audience. These technical difficulties were solved by means of adjusting structural details, external prestressing tension cables and tuned mass dampers.

Keywords:Bengbu Sports Center Stadium; streamlined steel shed; prestressed tension cable; tuned mass damper