广州建筑 ›› 2021, Vol. 49 ›› Issue (5): 33-.

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装配式混凝土预制结构柱施工质量控制研究

  

  • 出版日期:2021-10-12 发布日期:2022-04-19

  • Online:2021-10-12 Published:2022-04-19

摘要: 装配式混凝土预制结构柱与常规现浇混凝土结构柱施工方法及工序存在较大差异,预制结构柱施工是对构件厂生产的成品结构柱进行现场吊运、安装、连接,其有着更高的精度和质量控制要求。而且预制结构柱施工作为一种新工艺,又是控制结构主体安全的最后一道防线,对装配式混凝土预制结构柱施工质量控制展开研究具有重要意义。本文对采用连接套筒式的装配式预制结构柱的施工工艺进行总结,对其常见的质量问题进行梳理。重点对套筒与钢筋保护、伸出钢筋轴线定位、吊装施工、灌浆施工、防雷连接施工等关键工艺中存在的常见问题进行阐述,并提出了相应的防治措施,为装配式混凝土预制结构柱的施工质量控制、管理人员提供借鉴。

Abstract: The construction of precast structural column is quite different from that of conventional cast-in-situ concrete structural column. The construction of prefabricated structural columns is to lift, install and connect the finished structural columns produced by the component factory on site. It has higher precision and quality control requirements. Precast structural column construction is a new technology and the last line of defense to control the safety of the main structure. The research on the construction quality control of prefabricated concrete structural column is of great significance. This paper summarized the construction technique of the connecting-sleeve prefabricated structural column, and discussed its common quality problems. The protection of sleeve and reinforcement, positioning of protruding reinforcement, hoisting operation, grouting operation and lightning protection connection construction techniques are discussed. Besides, the corresponding controlling methods were put forwards, which can provide reference for the construction management of prefabricated concrete structural columns.