【正文】 新建合 肥 至福州鐵路安徽段站前五標段 烏溪河特大橋連續(xù)梁 施工 方案 中交三航局合福鐵路安徽段站前五標項目經(jīng)理部 三分部 i 目 錄 編制目的、依據(jù)及原則 ............................................................................................................ 1 編制依據(jù) ......................................................................................................................... 1 編制原則 ......................................................................................................................... 2 工程概況 ................................................................................................................................. 2 施工總體安排 .......................................................................................................................... 4 、施工準備 ....................................................................................................................... 4 、施工平面布置 ................................................................................................................ 6 、施工用電規(guī)劃 ................................................................................................................ 6 、施工進度計劃 ................................................................................................................ 6 、連續(xù)梁主要施工過程及流程圖 ........................................................................................ 7 、連續(xù)梁施工測量控制 ...................................................................................................... 7 0段施工 ................................................................................................................................. 9 、支座墊石 ......................................................................................................................10 、臨時固結(jié)措施 ...............................................................................................................10 0段支架 ......................................................................................................................13 、支座安裝 ......................................................................................................................17 、模板安裝 ......................................................................................................................18 、鋼筋安裝 ......................................................................................................................18 、混凝土施工 ...................................................................................................................19 、預應力張拉 ...................................................................................................................22 、預應力真空壓漿施工工藝 ..............................................................................................26 懸澆段施工 ............................................................................................................................29 、掛籃的組拼及檢算 ........................................................................................................30 、三角掛籃加載試壓 ........................................................................................................33 、調(diào)整底模板 ...................................................................................................................35 、外模合攏 ......................................................................................................................35 、綁扎底、腹板鋼筋安裝豎向預應力孔道 .........................................................................36 、內(nèi)模安裝 ......................................................................................................................36 、端模安裝、孔道安裝及頂板鋼筋綁扎 ............................................................................36 、模板加固 ......................................................................................................................36 、梁段混凝土澆筑 ............................................................................................................36 、拆模 ...........................................................................................................................37 、混凝土養(yǎng) 護 .................................................................................................................37 、預應力鋼束張拉 ..........................................................................................................37 、孔道壓漿 ....................................................................................................................38 、封錨 ...........................................................................................................................39 、掛籃前移 ....................................................................................................................39 中跨合攏段施工 .....................................................................................................................39 A8 懸澆段施工 .......................................................................................................................41 邊跨現(xiàn)澆段施工 .....................................................................................................................41 邊跨合攏段施工及體系轉(zhuǎn)換 ....................................................................................................42 連續(xù)梁施工重點控制措施 .......................................................................................................43 新建合 肥 至福州鐵路安徽段站前五標段 烏溪河特大橋連續(xù)梁 施工 方案 中交三航局合福鐵路安徽段站前五標項目經(jīng)理部 三分部 ii 、連續(xù)梁防開裂技術(shù) ........................................................................................................43 、大跨度橋梁懸臂施工的線形控制技術(shù) ............................................................................44 、夏季混凝土施工保證 措施 ..............................................................................................44 施工準備 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