Special-shaped grouting sleeve for steel bar connection and preparation method thereof: Fid-Bau Portal

Special-shaped grouting sleeve for steel bar connection and preparation method thereof

JIN ZHIXIN

The invention relates to a special-shaped grouting sleeve for steel bar connection and a preparation method thereof. The special-shaped grouting sleeve comprises a first grouting sleeve body and a second grouting sleeve body, and sleeve body conical openings are formed in the ends, away from each other, of the first grouting sleeve body and the second grouting sleeve body correspondingly; the ends, close to each other, of the first grouting sleeve body and the second grouting sleeve body are closed ends; the closed ends of the first grouting sleeve body and the second grouting sleeve body arein lap joint to form a transition section; a grout passing hole communicating with the first grouting sleeve body and the second grouting sleeve body is formed in the sleeve body at the lap joint position of the transition section; and a first connecting steel bar and a second connecting steel bar are inserted into the first grouting sleeve body and the second grouting sleeve body respectively. The installation is quick, the joint is accurate, the connection performance of the steel bars and the sleeve is improved, the shear deformation resistance of the sleeve bodies is enhanced, and the problems of non-uniform anchoring length of the steel bars in the sleeve bodies and prone to deformation and damage of the sleeve bodies are solved.

本发明涉及一种钢筋连接用异形灌浆套筒及其制备方法，所述异形灌浆套筒包括第一灌浆筒体和第二灌浆筒体，第一灌浆筒体和第二灌浆筒体远离彼此的一端均开设有筒体锥形口，第一灌浆筒体和第二灌浆筒体靠近彼此的一端为封闭端，且第一灌浆筒体和第二灌浆筒体的封闭端相互搭接形成过渡段，在过渡段的相互搭接处的筒体上开设有连通第一灌浆筒体和第二灌浆筒体的过浆孔，第一灌浆筒体和第二灌浆筒体中分别插设有第一连接钢筋和第二连接钢筋。安装快速且接头精确，增加了钢筋与套筒的连接性能，增强了筒体的抗剪变形能力，解决钢筋在套筒中锚固长度不均匀及套筒易变形破损的问题。

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