Half-grouted sleeve with built-in cone

Abstract

The invention discloses a semi-grouting sleeve embedded with a cone. The semi-grouting sleeve comprises a connecting piece (3), a sleeve body (4), a grouting port (6), a grouting port (7), a cone body (9), shear bolts (11), elastic rubber sealing ring (12), wherein, one end of the sleeve body (4) is provided with a connector (3), and the other end is equipped with an elastic rubber sealing ring (12 ); the sleeve body (4) is equipped with a cone (9) embedded in one end of the elastic rubber sealing ring (12), and the outer wall of the side of the sleeve body (4) is provided with a grouting port (6) and a grouting port ( 7), there is a shear bolt (11) in the middle; one end of the fixed side threaded steel bar (1) is connected with the connector (3), and one end of the inserted side threaded steel bar (13) passes through the elastic rubber sealing ring (12) , The cone (9) is located in the sleeve body (4). The invention has the advantages of simple manufacture, low cost, etc., and is especially suitable for connecting longitudinal steel bars of beams, columns, and shear wall members, and can be widely used in assembled concrete structures, and has broad engineering application prospects.

Description

technical field [0001] The invention relates to a grout-anchored sleeve connector used for connecting steel bars between prefabricated concrete components, belonging to the technical field of construction engineering, in particular to a semi-grouted sleeve embedded with a cone. Background technique [0002] As we all know, prefabricated concrete structure is a structural form that conforms to industrial production methods. It has the advantages of fast construction speed, low labor intensity, less noise pollution and wet work, and easy control of product quality. It is the development direction of my country's future construction. [0003] The core and difficulty of prefabricated concrete structures is the connection of steel bars. The common forms of steel bar connection include mechanical connection, welding connection, lap connection, etc., but there is a problem that concrete needs to be poured at the connection node after the connection. The cement grouting sleeve conne...

AI Technical Summary

Problems solved by technology

[0009] The semi-grouting sleeve disclosed in Chinese patent document CN102587586A has the above-mentioned advantages, but still has the following problems: ① the grooves and / or ribs are formed by casting or machining, and the disadvantages of time-consuming and labor-intensive processing have not been fundamentally resolved; ②The grooves and / or convex ribs are made by rolling or spinning, and rely on multiple grooves inside the sleeve to resist shearing. Requirements, the wall thickness of the sleeve is relatively large, so as to ensure that the tensile force at the thinnest position of the sleeve wall after rolling (pressing) is greater than the tensile force of the connecting steel bar, which will directly lead to the bulky shape of the sleeve; on the other hand, Machining multiple grooves and / or ribs is still time-consuming and labor-intensive

[0010] In summary, the existing semi-grouting sleeves have disadvantages such as difficult processing, bulky form, and high cost, which is not conducive to the current development of my country's housing industrialization and construction industrialization

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