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(1 上海建筑設(shè)計(jì)研究院有限公司, 上海 200041;2 上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心, 上海 200041)

摘要: 針對(duì)合肥濱湖國(guó)際會(huì)展中心綜合館大跨度屋蓋,提出一種鋼-鋁組合張弦空間桁架新型受力體系,其中上部組合桁架的下弦桿、腹桿采用鋼構(gòu)件,組合桁架上弦桿采用鋁合金型材,撐桿和拉索為鋼結(jié)構(gòu),該體系集合了傳統(tǒng)張弦桁架空間受力特點(diǎn)和鋁合金結(jié)構(gòu)的優(yōu)點(diǎn),形成鋁合金主結(jié)構(gòu)與屋蓋圍護(hù)系統(tǒng)一體化設(shè)計(jì). 介紹了屋蓋受力體系的構(gòu)成、鋼-鋁合金連接節(jié)點(diǎn)、一體化屋面和張弦桁架的分析設(shè)計(jì)結(jié)果,同時(shí)研究了屋蓋結(jié)構(gòu)的穩(wěn)定性、抗連續(xù)倒塌等問題. 分析結(jié)果表明,屋蓋體系各項(xiàng)指標(biāo)均滿足規(guī)范要求,可為鋼-鋁合金組合空間桁架結(jié)構(gòu)體系的研究和應(yīng)用提供參考.

關(guān)鍵詞: 鋼-鋁組合張弦空間桁架; 大跨空間結(jié)構(gòu); 穩(wěn)定性; 抗連續(xù)倒塌; 一體化屋面

中圖分類號(hào):TU398+. 9 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)01-0023-06

DOI:10. 19701 / j. jzjg. SHY2303

Research on design technology of large-span steel-aluminum composite stringed alloy trussroof system of Hefei Binhu International Convention and Exhibition Center Complex

SUN Qiuzhi1,2, XU Jianli1,2, LI Yaming1,2, LIU Hongxin1,2

(1 Shanghai Institute of Architectural Design & Research Co. , Ltd. , Shanghai 200041, China;2 Shanghai Engineering Research Center of Spatial Structures, Shanghai 200041, China)

Abstract: According to the large-span roof of Hefei Binhu International Convention and Exhibition Center Complex, a newtype steel-aluminum composite stringed alloy truss fore system was proposed. The lower chords and webs of the uppercomposite truss are steel members, the upper chords of the composite truss are aluminum alloy profiles, and the braces andcables are steel structures. This system combines the characteristics of traditional truss string structure and the advantagesof aluminum alloy structure, forming an integrated design of aluminum alloy main structure and roof enclosure system. Thestructure of the roof structure, steel-aluminum alloy joints, analysis and design results of integrated roof and truss stringwere introduced, and the stability and resistance to continuous collapse of the roof structure were studied. The analysisresults show that all the indexes of the roof system meet the requirements of the code, which provides a reference for thedevelopment of the steel-aluminum composite alloy truss structural system.

Keywords:steel-aluminum composite stringed alloy truss; large-span spatial structure; stability; resistance to continuouscollapse; integrated roof

∗華東建筑集團(tuán)股份有限公司課題(18-1 類-0066-結(jié)),上海建筑設(shè)計(jì)研究院有限公司課題(18-B1-0244-結(jié)).

作者簡(jiǎn)介:孫求知,碩士,工程師,主要從事大跨結(jié)構(gòu)設(shè)計(jì)工作,Email:sunqz@ isaarchitecture. com.

[引用本文] 孫求知,許建立,李亞明,等. 合肥濱湖國(guó)際會(huì)展中心綜合館大跨度鋼-鋁組合張弦空間桁架屋蓋體系設(shè)計(jì)技術(shù)研究[J]. 建筑結(jié)構(gòu),2023,53( 1):23-28. SUN Qiuzhi,XU Jianli,LI Yaming, et al. Research on designtechnology of large-span steel-aluminum composite stringed alloy truss roof system of Hefei Binhu International Conventionand Exhibition Center Complex [J]. Building Structure,2023,53(1):23-28.