国彩
282017-09
長江航道科研實驗新基地二期工程鋼結構工程
9051次2017-09-28

7號模型試驗大廳抗側力體系,縱向為混凝土框架結構、橫向為混凝土排架結構,屋蓋跨度72m,采用倒三角形立體鋼管桁架結構。桁架兩端固定鉸接于兩側混凝土柱上。


本工程擬采用“地面拼裝,空中對接”的方案進行施工,10榀倒三角截面圓管主桁架,四條次桁架(36個單元),地面拼裝量很大。焊接量大且要求高,鋼管桁架弦桿與腹桿相連接均采用焊接,約650噸鋼結構焊接量。

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国彩

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