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1、目錄一、編制依據(jù)··································································································1二、工程概況··································································································1三、斜拉索掛索施工工藝································································
2、············2四、斜拉索PE修補(bǔ)工藝．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．9五、斜拉索張拉施工工藝············································································10六、質(zhì)量保證措施························································································11七、工期保證措施····························
3、····························································13八、安全保證措施························································································13九、附件········································································································15十、附圖·············
4、···························································································15中鐵大橋局天興洲長(zhǎng)江大橋工程指揮部2#、3#墩斜拉索安裝技術(shù)方案斜拉索安裝技術(shù)方案一、編制依據(jù)1、《武漢天興洲公鐵兩用長(zhǎng)江大橋正橋——鋼梁施工圖》（共三冊(cè)）；2、《武漢天興洲公鐵兩用長(zhǎng)江大橋正橋——斜拉橋斜拉索總裝配圖》3、《鐵路橋涵施工規(guī)范》TB10203-2002；4、《鐵路橋涵工程施工質(zhì)量驗(yàn)收標(biāo)準(zhǔn)》TB10415-2003；5、《客運(yùn)專線鐵路橋涵工程施工質(zhì)量驗(yàn)收暫行標(biāo)準(zhǔn)》鐵建設(shè)[
5、2005]160號(hào)；6、《鐵路工程施工安全技術(shù)規(guī)程》TB10401.1－2-2003（上下冊(cè)）；7、《建筑機(jī)械使用安全技術(shù)規(guī)程》JGJ33-2001；二、工程概況1、天興洲大橋正橋?yàn)椋?8+196+504+196+98）米雙塔三索面斜拉橋，上層為六車道公路，下層為四線鐵路。斜拉橋主梁為板桁結(jié)合鋼桁梁，上弦中部756米范圍是正交異性鋼板橋面，兩端各168米范圍是混凝土結(jié)合板橋面。橋塔為倒“Y”型混凝土塔，塔頂標(biāo)高為+205m，承臺(tái)以上塔高188.5m。2、全橋共設(shè)16對(duì)192根斜拉索，采用三索面空間索布置，斜拉索采用PES7-241、PES7-253、PES7-283、
6、PES7-337、PES7-379、PES-409、PES-421、PES-451等八種規(guī)格三十二種型號(hào)。整股鋼絲用高強(qiáng)纏包帶纏緊后外擠雙層雙螺旋線HDPE護(hù)套，鋼絲的抗拉標(biāo)準(zhǔn)強(qiáng)度Rby=1670MPa，最長(zhǎng)索272.183m，最短索82.938m，單根索最大重量41.184t（鋼絲重），兩端均采用張拉冷鑄錨具。張拉端設(shè)在塔內(nèi)，同一號(hào)斜拉索要求上、中、下游、主、邊跨六根索同時(shí)對(duì)稱張拉。3、工藝適用范圍本工藝的適用范圍為天興洲大橋2#墩（漢口側(cè)）、3＃墩（武昌側(cè)）斜拉索（邊跨邊桁S1～S16、邊跨中桁MS1～MS16、中跨邊桁C1～C16、中跨中桁MC1～MC16號(hào)）的
7、掛設(shè)及張拉。詳見附圖TQ－07－01：天興洲大橋斜拉索布置圖中鐵大橋（鄭州）纜索有限公司第1頁中鐵大橋局天興洲長(zhǎng)江大橋工程指揮部2#、3#墩斜拉索安裝技術(shù)方案三、斜拉索掛索施工工藝（一）、施工方案天興洲大橋2#、3#墩塔柱封頂后進(jìn)行斜拉索安裝。根據(jù)施工現(xiàn)場(chǎng)塔頂?shù)跫?、塔旁塔吊的配置分為兩種方式進(jìn)行安裝：A、1—6#斜拉索先掛塔端（1—4#斜拉索戴平錨杯螺母，5—6#斜拉索錨杯張拉桿副螺母鎖緊），再通過20噸放索盤橋面展索，安裝梁端并軟牽引到位，最后5—6#斜拉索塔端剛性牽引到位（斜拉索戴平錨杯螺母）。B、7—16#斜拉索先根據(jù)橋面成型長(zhǎng)度進(jìn)行橋面展索，
