建筑施工·第44卷·第12期2941钢结构临边反坎支模及加固施工技术熊定振深圳市建设(集团)有限公司广东深圳518000摘要:在超高层建筑中临边结构多以钢结构为主,因造型需要,有些设计要求在钢结构外边缘增设现浇混凝土反坎。由于现浇混凝土反坎靠近钢结构外边缘,且无外脚手架协助操作,存在施工安全隐患大、操作不便、模板支设及加固困难等问题。为解决上述问题,采用钢结构临边反坎支模及加固施工技术,将传统双侧吊木模的施工方法改为预加工单侧钢模与单侧木模组拼的方式,取得了良好的社会与经济效益。关键词:超高层建筑;钢结构;临边反坎;支模;加固中图分类号:TU731文献标志码:A文章编号:1004-1001(2022)12-2941-03DOI:10.14144/j.cnki.jzsg.2022.12.038FormworkErectionandReinforcementConstructionTechnologyofSteelStructureEdgeFlashingRidgeXIONGDingzhenShenzhenConstructionGroupCo.,Ltd.,Shenzhen,Guangdong518000,ChinaAbstract:Insuperhigh-risebuildings,mostedgestructuresaresteelstructures.Duetothemodelingneeds,somedesignsrequireaddingcast-in-situconcreteflashingridgeattheouteredgeofthesteelstructure.Asthecast-in-placeconcreteflashingridgeisclosetotheouteredgeofthesteelstructure,andthereisnoexternalscaffoldtoassisttheoperation,therearemanyproblemssuchassevereconstructionsafetyhazards,inconvenientoperation,difficultformworkerectionandreinforcement,etc.Tosolvetheaboveproblems,theformworkerectionandreinforcementconstructiontechnologyofthesteelstructureedgeflashingridgeisadopted,andthetraditionalconstructionmethodofdoublesidehangingwoodenformworkischangedtotheassemblymethodofpre-processedsinglesidesteelformworkandsinglesidewoodenformwork,whichachievesgoodsocialandeconomicbenefits.Keywords:superhigh-risebuilding;steelstructure;edgeflashingridge;formworkerection;reinforce1工程概况中国国有资本风投大厦位于深圳市南山区前海桂湾片区,总用地面积约12万m2,总建筑面积177362m2。本项目西侧(A栋)塔楼为超高层建筑,高238.5m,地上52层,东侧(B栋)塔楼高74.0m,地上16层,均为甲级办公楼,地下室5层,为车库、设备用房和垃圾房。项目A栋超高层建筑结构形式为钢管混凝土外框架+伸臂桁架+混凝土核心筒体系。A塔在45层转换层位置由于钢结构外边缘...