装配式建筑预制柱套筒灌浆连接技术分析研究

Analysis on Sleeve Grouting Connection Technology of Prefabricated Columns in Prefabricated Building

通过灌浆套筒的连接原理和受力特点分析,灌浆料对套筒和钢筋的连接机理的总结,套筒灌浆连接在框架柱体系下的受力破坏形式分析归纳,总结预制柱灌浆套筒部位混凝土保护层的控制、套筒连接范围内约束箍筋的合理设置、选择合适的套筒尺寸、主筋在套筒内锚固长度等设计质量控制要点,通过选择合适的检测方式,验证了分析总结和设计质量管控的合理性,为装配式建筑的后续发展提供一定的参考。

This paper analyzes the connection principle and stress characteristics of grouting sleeves,summarizes the connection mechanism of grouting materials on sleeves and steel bars,and explains the failure forms of sleeve grouting connections in frame column systems.The design quality control points are summarized such as the control of concrete protective layer at the grouting sleeve position of prefabricated columns,the reasonable setting of restraining stirrups within the sleeve connection range,the selection of appropriate sleeve sizes,and the anchoring length of the main reinforcement in the sleeve.By selecting appropriate testing methods,the rationality of the analysis summary and design quality control is verified,providing certain reference for the subsequent development of prefabricated buildings.