Semi-grouting sleeve assembly for fabricated building and construction method thereof

Abstract

The invention discloses a semi-grouting sleeve assembly for prefabricated building. The semi-grouting sleeve assembly comprises a first steel bar provided with a first external thread, a second steelbar provided with a second external thread, an integrated nut bolt, a straight thread sleeve provided with a grout discharging hole, a semi-grouting sleeve and a square nut. The semi-grouting sleeve comprises a rectangular pipe, a square-round reducer pipe, a round pipe, an outer-round inner-square pipe and a grouting hole formed in the square-round reducer pipe; one end of the rectangular pipe istransitionally enlarged and gradually changed to one end of the round pipe through the square-round reducer pipe, the outer diameter of the round pipe is the same as that of the outer-round inner-square pipe, and fourth external threads are arranged on the outer surfaces of the round pipe and the outer-round inner-square pipe; and a rectangular hole allowing the first steel bar to penetrate through and allowing the square nut not to penetrate through is formed in the outer-round inner-square pipe, and first internal threads matched with the first external threads and third external threads are formed in the straight thread sleeve. The semi-grouting sleeve assembly is simple in structure and low in application cost, and the overall quality of the semi-grouting sleeve assembly can be guaranteed when the sleeve is not fully grouted.

Description

technical field [0001] The invention relates to the technical field of steel bar connection in prefabricated buildings, in particular to a semi-grouting sleeve assembly for prefabricated buildings and a construction method thereof. Background technique [0002] The grouting sleeve is a combination of specially processed sleeves, supporting grouting materials and steel bars. When connecting the steel bars, the fast-hardening non-shrinking grouting material is injected, and the steel bars and the sleeves are connected by the bonding and occlusion between the materials. Reliable, wide applicability, easy installation and other advantages, it is mainly used in the connection of prefabricated component steel bars in prefabricated concrete structures and the overall butt joint of steel cages in cast-in-place concrete structures. [0003] Grouting sleeves include full grouting sleeves and half grouting sleeves. Full grouting sleeves are grouting sleeves that use grouting at both en...

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Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the above-mentioned defects in the prior art, and to provide a semi-grouting sleeve component for prefabricated buildings and its construction method, which is used to solve the problem of existing prefabricated buildings. In construction, the application cost of semi-grouting sleeve is high, the quality of grouting is difficult to guarantee, and the pouring is difficult.

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