建筑施工·第44卷·第12期2875预留地铁线内包超大钢骨转换结构承台基础施工技术殷伟1葛军2蒋文翔2孙洪飞2骆淼21.南京市江北新区建设和交通工程质量安全监督站江苏南京211899;2.中建八局第三建设有限公司江苏南京210046摘要:城市化的发展推动着交通综合体系的不断完善,因此城市轨道交通与机场航站楼的联系愈发紧密。地铁与机场航站楼的无缝衔接被纳入到机场航站楼建设范畴内。结合某大型机场航站楼改扩建工程实例,通过BIM应用、工艺创新、质量控制等措施,解决了预留地铁线内包超大钢骨转换结构承台基础施工过程中工序复杂、钢筋定位困难、施工难度大等一系列问题,以便在类似机场航站楼的预留地铁线基础工程中予以推广和借鉴。关键词:预留地铁线;超大钢骨;BIM建模;Y形支架体系;钢筋代换中图分类号:TU753文献标志码:A文章编号:1004-1001(2022)12-2875-04DOI:10.14144/j.cnki.jzsg.2022.12.019ConstructionTechnologyofPlatformFoundationofReservedSubwayLinewithSuperLargeSteelFrameConversionStructureYINWei1GEJun2JIANGWenxiang2SUNHongfei2LUOMiao21.NanjingJiangbeiNewAreaConstructionandTrafficEngineeringQualityandSafetySupervisionStation,Nanjing,Jiangsu211899,China;2.TheThirdConstructionCo.,Ltd.ofChinaConstructionEighthEngineeringDivision,Nanjing,Jiangsu210046,ChinaAbstract:Thedevelopmentofurbanizationispromotingthecontinuousimprovementofthecomprehensivetransportationsystem,sothelinkagebetweenurbanrailtransitandairportterminalsisbecomingincreasinglycloser.Theseamlessconnectionbetweenthesubwayandtheairportterminalisincludedinthescopeofairportterminalconstruction.Combinedwiththereconstructionandexpansionprojectofalargeairportterminal,throughBIMapplication,processinnovation,qualitycontrolandothermeasures,aseriesofproblemssuchascomplexprocess,difficultrebarpositioning,andconstructiondifficultyintheconstructionprocessoftheplatformfoundationofthesuperlargesteelskeletontransformationstructureinsidethereservedsubwaylinearesolved,soastopromoteanddrawlessonsfromthereservedsubwaylinefoundationprojectsofsimilarairportterminals.Keywords:reservedsubwayline;superlargesteelframe;BIMmodeling;Y-shapedsupportsystem;rebarreplacement制导流槽控制...