Self-locking steel bar connecting grouting sleeve

A grouting sleeve and self-locking technology, which is applied in the direction of structural elements, building components, building reinforcements, etc., can solve the problems of less grouting sleeves, low shear bearing capacity, small construction space, etc., to solve eccentricity and sticking Wall problems, accurate radial positioning, and the effect of improving anchorage performance
CN109098358APending Publication Date: 2018-12-28SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2018-12-28

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Abstract

The invention discloses a self-locking steel bar connecting grouting sleeve which comprises a sleeve body. The sleeve body is provided with a grouting hole and a grout outlet hole, a grouting cavity communicated with the grouting hole and the grout outlet hole is formed in the sleeve body, the inner wall of the grouting cavity is provided with ribs or corrugations, and the inner wall of the grouting cavity is also provided with multiple clamping tongues. On one hand, when steel bars are inserted into the self-locking steel bar connecting grouting sleeve, a mechanical anchoring force can be effectively provided through the self-locking effect between the steel bars and threaded steel bar ribs; on the other hand, when connected steel bars inserted into prefabricated members have deviations,and when the steel bars are inserted into the grouting sleeve, the situation of wall attachment or eccentricity occurring during connection of the self-locking steel bar connecting grouting sleeve canbe effectively avoided through appropriate position correction of the steel bars due to the vertical radial effect of the clamping tongues.
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Description

technical field

[0001] The invention relates to the technical field of civil engineering and transportation, in particular to a self-locking grouting sleeve for connecting steel bars. Background technique

[0002] With the development and wide application of my country's construction industrialization, the connection technology and measures between concrete prefabricated components have become more and more key technologies and bottlenecks for promoting the prefabricated concrete structure and improving the quality of the prefabricated concrete structure, especially the connection between steel bars. connection technology. Grouting sleeve connection can reduce the amount of wet work on the construction site, and the connection between prefabricated components can be completed only through grouting anchorage. The construction speed is fast and the construction site does not require formwork support and concrete. The construction is green, convenient and economical. , this con...

Claims

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