钢管混凝土柱顶升施工技术被引量：3

Lift-up Construction Technology of Concrete-filled Steel Tubular Column

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摘要钢管混凝土结构充分发挥了混凝土抗压和钢材抗拉的性能特点,具有承载力高、抗震性能好、施工简便、耐火性能好等特点,综合优势明显,应用前景广阔。钢管柱混凝土顶升施工技术是一种先进的施工方法,从钢管柱底部灌入高性能自密实混凝土,并利用泵送压力把混凝土顶升到预定高度的免振捣施工方法。顶升法具有减少高空作业及劳动强度、缩短工期、工效高等特点,在超高层建筑中得到应用。研究了钢管混凝土柱顶升法的技术特点、工艺流程、高性能自密实混凝土、顶升压力计算、钢管柱防爆验算和钢管柱混凝土浇筑的质量控制要点。 Concrete-filled steel tubular column(CFSTC)benefits from the compressive and tensile properties of both concrete and steel.It has the qualities including high bearing capacity,good seismic performance,ease of construction,good fire resistance,which obviously has a wide range of advantages and applications.The advanced technique casts high performance concrete into a steel column and uses pumping pressure to lift up concrete to a predetermined height without vibration.The lift-up construction technique,which has been applied for high-rise buildings,has the advantage of reducing risk and intensity of the work in high places with less construction time and high efficiency.This paper focused on the lift-up construction technique’s attributes,construction procedures,high performance self-compacting concrete,lift-up pressure calculation,steel tube explosion-proof calculation,and quality control points.

作者田伟杨伟波邹仙德 TIAN Wei;YANG Weibo;ZOU Xiande(China State Construction Overseas Development Co.,Ltd.,Shanghai200125,China;Egypt Branch of China State Construction Engineering Co.,Ltd.,Cairo11835,Egypt;Northeast Branch of China Construction Eighth Engineering Division Co.,Ltd.,Dalian,Liaoning116019,China)

机构地区上海中建海外发展有限公司中国建筑股份有限公司埃及分公司中国建筑第八工程局有限公司东北分公司

出处《施工技术（中英文）》 CAS 2022年第24期107-113,共7页 Construction Technology

基金 China State Construction Research Project(CSCEC-2019-Z-22) China Construction Eighth Engineering Division Research Project(2019-2-08)。

关键词钢管混凝土柱顶升高性能混凝土顶升压力质量控制施工技术 concrete-filled steel tubular column lift-up high performance concrete lift-up pressure quality control construction

分类号 TU755 [建筑科学—建筑技术科学]

作者简介 TIAN Wei,Doctor,Professorate Senior Engineer,National First Grade State Registered Structure Engineer,National State Registered Consultant,National First Grade State Registered Construction Engineer,National First Grade Cost Engineer,E⁃mail:vannytian@163.com。