大跨度大懸挑屋蓋網架跨層提升施工技術
                                  • 作者: 張寧,陳萌,張偉,等
                                  論文摘要

                                  大跨度大懸挑屋蓋網架跨層提升施工技術

                                  張寧,陳萌,張偉,李松茂,杜琦,楊磊

                                  (中建科工集團有限公司,四川 成都 610040)

                                  [摘要]成都天府國際機場T1航站樓屋蓋網架平面投影面積約17.84m2,其中D區大廳網架平面投影面積為約10.51m2,網架厚度1.56.4m,最大跨度108m,最大懸挑長度約39m。根據網架投影所在的不同樓層進行合理分區,以網架投影所處樓層的不同劃分提升分塊,跨層累積提升后,再安裝分塊網架間的補檔桿件,拼裝為整體后提升至設計標高。此施工方法降低了網架拼裝高度,施工簡單,安全性高,節約措施量,大幅提高了網架結構施工效率。

                                  [關鍵詞]鋼結構;網架;拼裝;整體提升

                                  [中圖分類號] TU758.11    [文獻標識碼]A    [文章編號] 1002-8498(2021)08-0114-03

                                  Cross story Hoisting Construction Technology  of Large span and Long cantilever Roof Grid

                                  ZHANG Ning, CHEN Meng, ZHANG Wei, LI Songmao, DU Qi, YANG Lei

                                  (China Construction Science and Industry Co., Ltd .,Chengdu,Sichuan 610040, China)

                                  Abstract:The plane area of the roof grid for Chengdu Tianfu International Airport Terminal T1 is about 178 400m2. The plane area of the Zone D grid is about 105 100m2. The thickness of the grid is 1.5~6.4m. The maximum span is 108m and the maximum overhang length is about 39m. Reasonable partitioning is performed according to the different floors where the grid frame projection is located, and the different sections are used to lift the blocks. After accumulating the cross level accumulation, the supplementary levers between the grid sections are installed and assembled. The whole grid is raised to the design level. This construction method reduces the assembled height of the grid frame, has simple construction and high safety performance, saves the amount of measures, and greatly improves the construction efficiency of the grid frame structure.

                                  Keywords:steel structures; grids; assembly; overall lifting

                                  [作者簡介]張寧,助理工程師,Email594925197@qq.com

                                   

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