【正文】 ......................................... 6 工期計(jì)劃 ..................................................................................................................... 7 懸臂施工進(jìn)度指標(biāo)計(jì)算 ................................................................................... 7 工期計(jì)劃 ........................................................................................................... 8 4 施工方案 ............................................................................................................................. 10 施工方案概述 ........................................................................................................... 10 0段施工 .................................................................................................................... 10 0段施工工藝流程 ........................................................................................... 10 支座安裝 ......................................................................................................... 10 臨時(shí)固結(jié) ......................................................................................................... 14 （ 40+64+40） m 連續(xù)梁施工方案 II 0＃段施工支架 ................................................................................................ 15 0＃段施工支架預(yù)壓 ........................................................................................ 16 0段模板 .......................................................................................................... 20 0段鋼筋 .......................................................................................................... 20 鋼筋及預(yù)應(yīng)力管道 ......................................................................................... 22 0段混凝土澆筑 .............................................................................................. 22 貝雷桁架掛籃 .................................................................................................... 28 貝雷桁架掛籃的設(shè)計(jì)及加工 ......................................................................... 28 掛籃性能預(yù)壓試驗(yàn) ......................................................................................... 33 掛籃拼裝 ......................................................................................................... 33 掛籃懸臂施工 ........................................................................................................... 35 掛籃懸臂澆筑施工工藝流程 ......................................................................... 35 掛籃行走 ......................................................................................................... 36 鋼筋及預(yù)應(yīng)力管道安裝 ................................................................................. 37 混凝土澆筑 ..................................................................................................... 38 邊跨現(xiàn)澆段施工 ....................................................................................................... 41 邊跨現(xiàn)澆段施工工藝流程 ............................................................................. 41 邊跨現(xiàn)澆段支架布置及安裝 ......................................................................... 42 直線段支架預(yù)壓 ............................................................................................. 43 現(xiàn)澆段施工 ..................................................................................................... 44 合龍段施工 ............................................................................................................... 44 合龍段施工工藝流程 ..................................................................................... 44 合龍段施工順序 ............................................................................................. 44 合龍段吊架 ..................................................................................................... 44 合龍段施工配重 ............................................................................................. 44 合龍段臨 時(shí)鎖定措施 ..................................................................................... 44 合龍段混凝土澆筑前的準(zhǔn)備工作 ................................................................. 47 合龍段混凝土的澆筑及養(yǎng)護(hù) ......................................................................... 48 注意事 項(xiàng) ......................................................................................................... 48 體系轉(zhuǎn)換 ......................................................................................................... 49 連續(xù)梁鋼筋施工 ....................................................................................................... 50 （ 40+64+40） m 連續(xù)梁施工方案 III 工藝流程 ......................................................................................................... 50 質(zhì)量控制要點(diǎn) ................................................................................................. 50 質(zhì)量控制程序 ................................................................................................. 54 鋼筋及預(yù)應(yīng)力管道安裝 ................................................................................. 54 預(yù)應(yīng)力施工 ............................................................................................................... 56 預(yù)應(yīng)力體系 ..................................................................................................... 56 伸長值的計(jì)算 ................................................................................................. 57 張拉前的準(zhǔn)備工作 ......................................................................................... 57 縱向預(yù)應(yīng)力體系施工 ..................................................................................... 58 橫向預(yù)應(yīng)力體系施工 ..................................................................................... 61 豎向預(yù)應(yīng)力體系施工 ..................................................................................... 63 管道壓漿 ......................................................................................................... 64 封錨 ...................................................................