【正文】 汾河特大橋 跨七一渠 連續(xù)箱梁施工方案 中鐵十一局山西中南部鐵路通 道 ZNTJ7 標(biāo)項(xiàng)目經(jīng)理部 1 目 錄 一、編制依據(jù) ....................................................................................................................... 1 二、工程概況 ....................................................................................................................... 1 三、施工機(jī)具、設(shè)備配置 ................................................................................................... 1 四、施工主要材料數(shù)量 ....................................................................................................... 2 （一）連續(xù)梁施工主要材料用量見下表： ......................................................................... 2 （二） W7 W77墩 0段施工輔助材料用量表： .............................................................. 3 （三）邊跨現(xiàn)澆段支架材料用量表 : .................................................................................. 3 五、人員組織 ....................................................................................................................... 4 六、施工進(jìn)度計(jì)劃安排 ....................................................................................................... 4 七、施工方案 ....................................................................................................................... 4 （一） 0段施工方法 ......................................................................................................... 5 支座施工 .............................................................................................................. 5 0段支架施工 ....................................................................................................... 9 0段支架預(yù)壓及外模安裝 ..................................................................................... 9 梁體鋼筋安裝 ......................................................................................................13 預(yù)應(yīng)力管道安裝 ..................................................................................................13 0段砼澆筑 ..........................................................................................................15 0段外模拆除及預(yù)應(yīng)力施工 .................................................................................17 1段施工 .............................................................................................................17 （二）掛籃安裝和懸臂現(xiàn)澆梁段施工 ...............................................................................17 掛籃安裝、預(yù)壓 ..................................................................................................17 懸臂現(xiàn)澆梁段施工 ...............................................................................................20 養(yǎng)護(hù) ....................................................................................................................20 （三）掛籃移動 ...............................................................................................................20 （四）邊跨現(xiàn)澆段施工 ....................................................................................................21 工藝流程 .............................................................................................................21 施工方法 .............................................................................................................21 （五）合攏段施工 ...........................................................................................................24 合攏段施工工藝 ..................................................................................................24 合攏段的配重 ......................................................................................................25 合攏段的鎖定支撐 ...............................................................................................25 合攏段施工注意事項(xiàng) ...........................................................................................26 （六）體系轉(zhuǎn)換 ...............................................................................................................27 （七）懸臂澆筑中的施工監(jiān)控量測 ...................................................................................27 撓度監(jiān)測 .............................................................................................................27 懸臂澆注梁段的中線控制 ....................................................................................28 立模標(biāo)高的確定與調(diào)整 ........................................................................................28 材料參數(shù)測量 ......................................................................................................29 觀測注意事項(xiàng) ......................................................................................................30 （八）預(yù)應(yīng)力筋張拉施工 .................................................................................................30 縱向穿鋼束 ..........................................................................................................30 汾河特大橋 跨七一渠 連續(xù)箱梁施工方案 中鐵十一局山西中南部鐵路通 道 ZNTJ7 標(biāo)項(xiàng)目經(jīng)理部 2 張拉準(zhǔn)備工作 ......................................................................................................31 張拉施工 .............................................................................................................31 張拉施工主要技術(shù)措施 ........................................................................................32 張拉施工注意事項(xiàng) ...............................................................................................32 （九）預(yù)應(yīng)力孔道真空壓漿 .............................................................................................33 （十）預(yù)埋件設(shè)置 ...........................................................................................................35 八、連續(xù)梁施工質(zhì)量控制措施 ......................................................................................... 35 （一）預(yù)應(yīng)力施工質(zhì)量控制措施 ......................................................................................35 （二）掛籃懸臂現(xiàn)澆施工技術(shù)保證措施 ............................................................................36 （三）橋梁測量控制技術(shù)措施 ...................