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钢箱梁支架上组焊及安装施工技术方案 摘要近十几年来,钢箱梁桥较多且断面尺寸较大,给运输、吊装都存在一定安全隐患本文以曹妃甸工业区1#桥例,介绍了钢箱梁施工由拼装到大节段焊接全部采用在支架上组焊及安装,在形成叠合梁结构的过程中,避免大节段运输、吊装等问题同时减少钢箱梁的变形,引起顶板混凝土顶板的开裂,本文主要介绍钢梁在支架上现场组焊、安装的施工技术与施工方案 关键词钢箱梁;支架上组焊安装施工;技术与工艺方案 Abstract:Inthelastdecadesteelboxgirderbridgesbecomesmoreandtheyhavelargercross-sectionaldimensions.Theybothbringgreaterproblemsfortransportationandliftingespeciallylargesegementsofthetransportationandliftingwhichhavesomesecurityrisks.Inthispaperthe1#bridgeofCaofeidianIndustrialZoneforexampledescribestheconstructionofsteelboxgirderbyassemblingtothelargesegmentisusedtoweldonthebracketweldingandinstallationintheprocessofformingacompositebeamstructureavoidingdeformationofthesteelbeamcausingroofconcretecracking.Thispapermainlyintroducesthesteelbeamsweldingonthestantconstructiontechnologyandconstructionscheme. Keywords:steelboxgirder;weldinginstallationandconstr...。