2023NO.4建筑与土木SCIENCE&TECHNOLOGYINFORMATION科技资讯科技资讯SCIENCE&TECHNOLOGYINFORMATION大直径高抛钢管劲性混凝土柱施工技术研究贺凯1,2王志强1,2(1.中铁三局集团建筑安装工程有限公司山西太原030006;2.中铁三局集团有限公司山西太原030001)摘要:钢管混凝土结构已广泛用于高层建筑施工中。依托某实际工程,该文提出了大直径高抛钢管劲芯混凝土柱结构及其关键技术。通过采用钢板带定位环、脚手架钢管承重柱脚锚栓定位等精确控制技术安装内置劲芯柱钢管,采用单元分离式木质圆(方)柱模板体系进行外部混凝土结构浇筑,有效提高了劲芯柱钢管的安装精度和钢管劲芯混凝土柱浇筑质量。关键词:劲芯柱钢管自密实混凝土模板帽梁中图分类号:TU712.3;TU974文献标识码:A文章编号:1672-3791(2023)04-0064-04ResearchonConstructionTechnologyofLarge-DiameterHigh-ThrowingSteel-PipeStiff-CoreConcreteColumnHEKai1,2WANGZhiqiang1,2(1.ChinaRailwayNo.3EngineeringGroupCo.,Ltd.,ConstructionandInstallationEngineeringCo.,Ltd.,Taiyuan,ShanxiProvince,030006China;2.ChinaRailwayNo.3EngineeringGroupCo.,Ltd.,Taiyuan,ShanxiProvince,030001China)Abstract:Concrete-filledsteeltubestructureshavebeenwidelyusedinhigh-risebuildingconstruction.Relyingonanactualproject,thispaperproposesthestructureoflarge-diameterhigh-throwsteel-pilestiff-coreconcretecolumnanditskeytechnology.Throughtheuseofsteelplatebeltpositioningrings,scaffoldingsteelpipeload-bearingcolumnfootanchorboltpositioningandotherprecisecontroltechnologies,thebuilt-insteelpipewithstiff-corecolumnisinstalled,andtheunit-separatedwoodencircular(square)columnformworksystemisusedforexternalconcretestructurepouring,whicheffectivelyimprovestheinstallationaccuracyofthesteelpipewithstiff-corecolumnandthepouringqualityofsteel-pipestiff-coreconcretecolumn.KeyWords:Stiff-corecolumnsteelpipe;Self-compactingconcrete;Formwork;Capbeam钢结构以其工期短、施工方便、节能、环保、抗震、产业化生产等优势及以循环经济理念的推广被越来越多的建筑所采用。建筑结构形式由传统的钢筋混凝土结构逐渐向钢结构与钢筋混凝土结构相结合的结构形式转变。钢管混凝土结构是一种组合结构,具有充分利用材料特性、承载性能好、节省材料、施工方...