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（浙江杭蕭鋼構(gòu)股份有限公司，杭州 310003）

 [摘要]瑞立項(xiàng)目桁架安裝施工區(qū)域狹窄，大噸位、大跨度高空安裝是框架結(jié)構(gòu)安裝施工的難點(diǎn)。施工過程中，如何確保250t吊車在地下室頂板安全行走，是預(yù)控工程順利進(jìn)行的關(guān)鍵。本文介紹了通過腳手架計(jì)算規(guī)則采用板底均布支撐，合理布置現(xiàn)場(chǎng)吊車位置及桁架構(gòu)件進(jìn)場(chǎng)順序，高效的完成了桁架結(jié)構(gòu)安裝，并對(duì)整體流程進(jìn)行了簡(jiǎn)明闡述。

[關(guān)鍵詞]桁架；框架結(jié)構(gòu)；均布支撐；安裝流程

Analysis of construction technology of walking 250t truck crane in basement roof of Rayleigh project施工技術(shù)分析

Liu Chongyang, Wang Yanchao, Zhou Jia

(Zhejiang Hangxiao Group Steel Structure Co., Ltd., Hangzhou 310003, China)

Abstract: Rayleigh project truss installation in narrow area, large tonnage, large span high-altitude installation is difficult in installation and construction of frame structure. In the construction process, how to ensure that the 250t crane in the basement roof safety running, is the key to control the project smoothly. This paper introduces the calculation rules using the plate bottom scaffolding uniform support, reasonable arrangement of the crane position and the truss component approach sequence, efficient completion of the truss structure installation, and the whole process is discussed.

[關(guān)鍵詞]桁架；框架結(jié)構(gòu)；均布支撐；安裝流程

Keywords: truss; frame structure; uniform support; installation process

參考文獻(xiàn)

[1] GB 50755—2012 鋼結(jié)構(gòu)工程施工質(zhì)量驗(yàn)收規(guī)范[S]. 北京：中國(guó)建筑工業(yè)出版社，2012.

作者簡(jiǎn)介：劉重陽(yáng)，工程師，Email：liu.chongyang@hxss.com.cn。