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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］三門峽文體中心體育場(chǎng)外徑230m，采用不設(shè)永久縫鋼筋混凝土看臺(tái)，結(jié)構(gòu)設(shè)計(jì)時(shí)考慮看臺(tái)的受力特點(diǎn)，采用ETABS軟件按照看臺(tái)斜梁實(shí)際標(biāo)高建立計(jì)算模型，充分反映看臺(tái)斜梁對(duì)結(jié)構(gòu)整體剛度的影響，構(gòu)件設(shè)計(jì)考慮了斜梁的軸力影響?？磁_(tái)設(shè)計(jì)采用多種先進(jìn)技術(shù)解決了看臺(tái)結(jié)構(gòu)超長(zhǎng)導(dǎo)致的混凝土裂縫控制難題。體育場(chǎng)鋼罩篷和看臺(tái)相互獨(dú)立，采用三角形管桁架，并在根部蛻變?yōu)閮筛鞴?，形?ldquo;羽毛”外觀，鋼罩篷最終由80根基本相同的“羽毛”整體拼裝而成，整體結(jié)構(gòu)超長(zhǎng)。采用SAP2000軟件進(jìn)行整體計(jì)算，結(jié)果表明，環(huán)形鋼罩篷的部分環(huán)向構(gòu)件的溫度應(yīng)力較大，其他部位不敏感。

［關(guān)鍵詞］空間鋼管桁架; 無(wú)縫看臺(tái); 超長(zhǎng)結(jié)構(gòu)

中圖分類號(hào)：TU318.2      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)20-0095-04

Structural design of the stadium in Sanmenxia Cultural and Sports Center

Yang Yong, Chen Binlei, Chen Dong, Huang Zhongjie, Li Rui

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

Abstract: The outer diameter of the stadium of Sanmenxia Cultural and Sports Center is 230m and reinforced concrete stand is without permanent joint. The stress characteristics of stand were considered in structural design. ETABS program was used to model according to actual elevation of the inclined beams of stand to fully reflect the influence of inclined beams on the stiffness of the whole structure. The component design considered the effect of axial forces of the inclined beams. A variety of advanced measures were used to solve the problem of crack control due to the superlong stand structure. The steel awning, which is independent from the stand, adopts the triangle tube truss with two tubes turned out at the roots to form “feather” appearance. Steel awning was assembled as a whole by 80 identical “feather” ultimately with super-long structure. SAP2000 software was used in analyzing the steel awning structure and the results show that temperature stresses of some circumferential components are large but others are not sensitive to temperature.

Keywords:spatial tube truss; seamless stand; super-long structure

作者簡(jiǎn)介：楊勇，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:yynjtu@sohu.com。

參考文獻(xiàn)

［1］GB 50011—2010 建筑抗震設(shè)計(jì)規(guī)范［S］. 北京：中國(guó)建筑工業(yè)出版社，2010.

［2］GB 50017—2003 鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京：中國(guó)計(jì)劃出版社，2003.