揚(yáng)州體育公園體育場罩篷鋼結(jié)構(gòu)設(shè)計
趙宏康,邵建中,謝超
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(蘇州設(shè)計研究院股份有限公司, 蘇州 215021)[摘要]揚(yáng)州體育公園體育場罩篷鋼結(jié)構(gòu)是一個超大跨度帶預(yù)應(yīng)力索拱的復(fù)雜結(jié)構(gòu),介紹了其結(jié)構(gòu)設(shè)計和分析結(jié)果,包括結(jié)構(gòu)布置、受力特點(diǎn)、拱腳約束的影響、荷載取值、強(qiáng)度分析、變形控制、動力特性和穩(wěn)定設(shè)計等?;?/span>ABAQUS有限元軟件的線性屈曲分析和在材料非線性、幾何非線性雙重非線性下考慮初始缺陷的非線性穩(wěn)定分析,包括結(jié)構(gòu)的失穩(wěn)機(jī)制、拱腳約束對結(jié)構(gòu)整體穩(wěn)定性的影響以及部分桿件退出工作情況下的結(jié)構(gòu)整體穩(wěn)定分析,結(jié)果表明結(jié)構(gòu)具有良好的整體穩(wěn)定性。依據(jù)分析結(jié)果找到了大跨鋼結(jié)構(gòu)設(shè)計的控制因素和設(shè)計需要注意的內(nèi)容。[關(guān)鍵詞]揚(yáng)州體育公園; 鋼結(jié)構(gòu); 總裝模型; 管桁架; 溫度作用; 抗震性能; 非線性穩(wěn)定分析; 局部失效中圖分類號:TU393.3 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2013)20-0017-09Design of steel roof structure for stadium in Yangzhou Sports ParkZhao Hongkang, Shao Jianzhong, Xie Chao(Suzhou Institute of Architectural Design Co., Ltd., Suzhou 215021, China)Abstract: The steel roof structure of stadium in Yangzhou Sports Park is a large span spatial steel arch structure with prestressed cables. Structure design and analysis results were introduced, including structural layouts, load-bearing characteristics, effects of arch constraints, loadings, strength analysis, deformation control, dynamic characteristics and stability analysis, and etc.. Linear buckling analysis and double nonlinear stability analysis (including material nonlinear and geometry nonlinear, considering the initial defects) based on finite element software ABAQUS include the structure instability mechanism, influence of arch foot constraints on overall structure stability and analysis after some components fail. Results show that the overall structure has well stability, according to which the control factors and details of long span spatial steel structure design were provided.Keywords: Yangzhou Sports Park; steel structure;final assembly model;tube truss; temperature effect;seismic performance; nonlinear stability analysis; partial failure作者簡介:趙宏康,碩士,研究員級高級工程師,一級注冊結(jié)構(gòu)工程師,結(jié)構(gòu)總工程師,Email: zhao880616@126.com。參考文獻(xiàn)[1]趙宏康,戴雅萍,陳磊,等. 揚(yáng)州體育公園體育場結(jié)構(gòu)設(shè)計綜述[J]. 建筑結(jié)構(gòu),2013,43(20):11-16.[2]JGJ/T 249—2011 拱形鋼結(jié)構(gòu)技術(shù)規(guī)程[S]. 北京:中國建筑工業(yè)出版社,2011.[3]趙宏康. 采用預(yù)調(diào)內(nèi)力方法設(shè)計復(fù)雜空間鋼結(jié)構(gòu)[J]. 建筑結(jié)構(gòu),2013,43(20):26-29.[4]陳紹蕃. 鋼結(jié)構(gòu)穩(wěn)定設(shè)計指南[M]. 北京:中國建筑工業(yè)出版社,2011.[5]JGJ 7—2010 空間網(wǎng)格結(jié)構(gòu)技術(shù)規(guī)程[S]. 北京:中國建筑工業(yè)出版社,2010.[6]趙宏康,丁磊. 揚(yáng)州體育公園體育場巨型拱結(jié)構(gòu)新型支座結(jié)構(gòu)設(shè)計研究[J]. 建筑結(jié)構(gòu),2013,43(20):30-34.[7]日本鋼結(jié)構(gòu)協(xié)會,美國高層建筑和城市住宅理事會. 高冗余度鋼結(jié)構(gòu)倒塌控制設(shè)計指南[M]. 陳以一,趙憲忠,譯. 上海:同濟(jì)大學(xué)出版社,2007.
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