- 摘 要
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(浙江杭蕭鋼構(gòu)股份有限公司,杭州 310003)
[摘要]大跨桁架結(jié)構(gòu)施工方案一般采用原位拼裝、整體提升或者附近拼裝滑移就位,但因場(chǎng)地復(fù)雜無(wú)法使用大型吊裝的情況下,利用現(xiàn)場(chǎng)僅有一臺(tái)塔吊從兩端向中間進(jìn)行高空組裝。此方法打破了常規(guī)的施工方法,施工實(shí)踐結(jié)果證明該方案不僅安裝速度快、費(fèi)用低,而且高空作業(yè)減少。介紹了安裝過(guò)程中各種不利因素的分析及重點(diǎn)難點(diǎn)的解決辦法,并對(duì)構(gòu)件的制作的優(yōu)化組合、安裝過(guò)程中精確度監(jiān)測(cè)、焊接收縮量及變形控制等方面進(jìn)行了簡(jiǎn)明闡述。
[關(guān)鍵詞]鋼結(jié)構(gòu);桁架;高空拼裝
中圖分類(lèi)號(hào):TU60 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):
作者簡(jiǎn)介:劉重陽(yáng),工程師,Email: liu.chongyang@hxss.com.cn。
Assembly technology of high-altitude heavy truss in Elephant International Center
Liu Chongyang, Wang Yanchao, Zhao Long, Shi Yongan
(Zhejiang Hangxiao Group Steel Structure Co., Ltd., Hangzhou 310003, China)
Abstract: The construction scheme of large span truss generally adopts in situ assembly, the ascension of the whole or in the vicinity of assembling slip emplacement, but because the site is complex and cannot use large hoisting situation, only a tower crane can work from both ends to the middle of the high-altitude assembly site. This method breaks the conventional construction method, the construction practice proves that the scheme can not only fast installation, low cost, but also reduce the work high above the ground. The analysis and key points were introduced during the installation of various unfavorable factors of solution, and the optimize combination of components, making the installation process of shrinkage and deformation control, welding accuracy of monitoring were discussed.
Keywords: steel structure;truss; high-altitude assembly
參考文獻(xiàn)
[1] 郭彥林,崔曉強(qiáng).大跨度復(fù)雜鋼結(jié)構(gòu)施工過(guò)程中若干技術(shù)問(wèn)題及探討[J].工業(yè)建筑,2004,34(12) :1-5.
[2] JBJ81—2002 建筑鋼結(jié)構(gòu)焊接技術(shù)規(guī)程[ S ]. 北京:中國(guó)建筑工業(yè)出版社,2003.
[3]周保平,金彥飛.裙房屋蓋高空大跨度弧型鋼箱梁施工技術(shù)[J].鋼結(jié)構(gòu),2013(10):60-64.
[4]梁銳,尉成偉. 青島北客站復(fù)雜巨型倒三角箱型構(gòu)件高空安裝技術(shù)[J].鋼結(jié)構(gòu),2013(9):68-72.
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