This article mainly explores the construction technology of pumped concrete for the steel-concrete composite structure of a certain factory building and the node treatment method for the upper and lower steel pipe columns.The lower section of the column is lifted by pumping,and concrete is injected into the steel pipe;The upper column is constructed using high-level throwing and auxiliary vibration methods to complete the concrete construction.The steel tube concrete column adopts an embedded column base and uses positioning templates to reduce the error of embedded bolts,improving the installation accuracy of the steel tube concrete column.At the nodes of the upper and lower columns,flexible welding methods are selected according to the different diameters of the steel pipes to improve welding quality and ensure the stability and bearing capacity of the steel-concrete composite structure.
关键词
钢管混凝土组合结构/泵送混凝土/分层振捣/节点施工
Key words
steel-concrete composite structure/pumped concrete/layered vibration/node construction
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