上海某展示中心空間鋼管結(jié)構(gòu)安裝技術(shù)解析
劉重陽,王彥超,趙 龍,周 佳
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(浙江杭蕭鋼構(gòu)股份有限公司, 杭州 310003)[摘要] 大跨度多曲面焊接空間鋼管結(jié)構(gòu)是空間結(jié)構(gòu)安裝施工的難點(diǎn)。施工過程中,如何合理、有效地預(yù)控結(jié)構(gòu)的整體安裝質(zhì)量是確保工程順利進(jìn)行的關(guān)鍵。本文介紹了雙曲率圓管空中對接、圓管桁架原位三機(jī)抬吊、穹頂結(jié)構(gòu)對稱高空閉合及方管支撐體系設(shè)計等重點(diǎn)和難點(diǎn),并對構(gòu)件制作的優(yōu)化組合、安裝過程中精確度監(jiān)測、焊接收縮量及變形控制等方面進(jìn)行了簡明闡述。[關(guān)鍵詞] 鋼結(jié)構(gòu);多曲面;空間結(jié)構(gòu);三機(jī)抬吊中圖分類號:TU391 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2013)S1-1017-05作者簡介:劉重陽,工程師,Email:liu.chongyang@hxss.com.cn。Installation technique of the spatial steel tube structure of Exhibition Center in ShanghaiLiu Chongyang, Wang Yanchao, Zhao Long, Zhou Jia(Zhejiang Hangxiao Group Steel Structure Co. , Ltd. , Hangzhou 310003, China)Abstract: Welding spatial structure of multi surface and large span is difficult in installation. In the process of construction, how to reasonably, effectively control the overall structure quality of the installation is the key-point to ensure the smooth progress of the projects. This paper introduces the double curvature tube joint, pipe truss in situ three cranes lifting, dome structure symmetry aloft closing, and the design of RHS bracing system. The optimization and combination of components in fabrication and installation are discussed. Accurate monitoring in installation and shrinkage and deformation control during welding are described.Keywords: steel structure; multi surface; spatial structure; three cranes lifting
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