新鄭國際機場改擴建工程鋼屋蓋結(jié)構(gòu)設(shè)計
隋慶海，申豫斌，吳一紅，王敬忠
- 摘 要
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(中國建筑東北設(shè)計研究院深圳分院，深圳 518031)［提要］鄭州新鄭國際機場改擴建工程采用了斜撐上撓曲線拉索雙變截面箱形曲梁組合結(jié)構(gòu)，屋蓋為四跨波浪式輕鋼屋面。采用合理的結(jié)構(gòu)形式提高了結(jié)構(gòu)抗風(fēng)變形的能力以及減小豎向荷載作用下結(jié)構(gòu)的外張變形。對結(jié)構(gòu)在各種荷載工況下的內(nèi)力進行了分析，結(jié)果表明，結(jié)構(gòu)受力合理。對曲梁的形式和索力大小之間的關(guān)系進行了分析，得到了合理的索張拉力取值。［關(guān)鍵詞］機場候機樓；索；變截面箱形曲梁；復(fù)雜結(jié)構(gòu)體系；結(jié)構(gòu)內(nèi)力Steel Roof Structural Design of Xinzheng International Airport Rebuilt and Retrofitting Engineering/Sui Qinghai,Shen Yubin,Wu Yihong,Wang Jingzhong(China Northeast Architecture Design & Research Institute Shenzhen Branch,Shenzhen 518031,China)Abstract:The combination structure of diagonal bracing,up deformation curve cable and bi-variational box section beam is adopted in Xinzheng International Airport rebuilt and retrofitting.The light steel roof with four-span conk shape is used.The rational structural system improves the antideformation of structure under wind load and vertical load.The internal forces under all load combination are analyzed,and the results show that the bearing characteristic of the structure is reasonable.Based on the analysis of relation between shape of curve beam and forces of cables,the rational tension forces are got.Keywords:cable; variational box section beam; complex structure system; structural internal force
