大直径高抛钢管劲性混凝土柱施工技术研究  

Research on Construction Technology of Large-Diameter High-Throwing Steel-Pipe Stiff-Core Concrete Column

作　　者：贺凯 王志强 HE Kai;WANG Zhiqiang(China Railway No.3 Engineering Group Co.,Ltd.,Construction and Installation Engineering Co.,Ltd.,Taiyuan,Shanxi Province,030006 China;China Railway No.3 Engineering Group Co.,Ltd.,Taiyuan,Shanxi Province,030001 China)

机构地区：[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

出　　处：《科技资讯》2023年第4期64-67,共4页Science & Technology Information

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。Concrete-filled steel tube structures have been widely used in high-rise building construction. Relying on an actual project, this paper proposes the structure of large-diameter high-throw steel-pile stiff-core concrete column and its key technology. Through the use of steel plate belt positioning rings, scaffolding steel pipe loadbearing column foot anchor bolt positioning and other precise control technologies, the built-in steel pipe with stiff-core column is installed, and the unit-separated wooden circular(square) column formwork system is used for external concrete structure pouring, which effectively improves the installation accuracy of the steel pipe with stiffcore column and the pouring quality of steel-pipe stiff-core concrete column.

关 键 词：劲芯柱钢管 自密实混凝土 模板 帽梁 

分 类 号：TU712.3[建筑科学—建筑技术科学] TU974