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Grout sleeve for connecting prefabricated member steel bars and construction method of grout sleeve

A technology for prefabricated components and grouting sleeves, which is applied to building components, structural elements, building reinforcements, etc., can solve the problems of complex construction process, difficult to guarantee the quality of steel bar connection, and inability to connect steel bars, and achieves low cost, simple construction, The effect of reliable connection effects

Inactive Publication Date: 2014-02-19
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional cast-in-place concrete structures, the steel bars are often connected by means of lap joints, welded joints, or extruded sleeve mechanical connections. Rebar connection
The key problem is: this kind of steel bar connection method cannot be applied to the steel bar connection of prefabricated components

Method used

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  • Grout sleeve for connecting prefabricated member steel bars and construction method of grout sleeve
  • Grout sleeve for connecting prefabricated member steel bars and construction method of grout sleeve

Examples

Experimental program
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Effect test

Embodiment 1

[0010] The sleeve body 1 of the present invention can be made by casting. In order to remove the mold smoothly, the wall thickness of the middle part of the sleeve body 1 can be greater than that of the two ends, which is more in line with the distribution rule that the internal force in the middle part of the sleeve body is large and the internal force at both ends is small. The independent cubic block-shaped protrusion 6 provided on the inner wall of the sleeve ensures the bonding effect between the steel bars 7 and 8, the grouting material and the sleeve body 1. After the grouting material is solidified and hardened, the two reserved steel bars are connected through the sleeve to form a One. The outer diameter of the elastic rubber sealing ring 2 at both ends of the sleeve body 1 is greater than the inner diameter of the sleeve body 1, and the inner diameter of the elastic rubber sealing ring 2 is slightly smaller than the outer diameter of the steel bars 7 and 8 to ensure t...

Embodiment 2

[0012] The construction method of the present invention is as follows. After the assembled prefabricated components are manufactured in the factory, the reserved steel bars 7 can be temporarily inserted into the sleeve body 1 and fixed with the fixing bolts 3 to prevent the sleeve from being lost. During assembly and construction, loosen the fixing bolts 3 and remove the sleeve. For cylinder body 1, first put two elastic sealing rubber rings 2 on the reserved steel bars 7 and 8 respectively, insert the reserved steel bars 7 and 8 of the two assembled prefabricated components from both ends of the sleeve body 1, hoist and position them, Move the sleeve body 1 to the joint of the steel bars, adjust to the design depth of the two coaxial steel bars, screw in the fixing bolt 3 to fix it, squeeze in the elastic sealing rubber ring 2, connect the grouting gun to the grouting hole 4 through threads, and pour in cement Base grouting material, the air vent 5 should be unblocked during ...

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Abstract

The invention discloses a grout sleeve for connecting prefabricated member steel bars and a construction method of the grout sleeve, relating to the technical field of precast concrete members. The grout sleeve is used for solving the connection problem of prefabricated member steel bars and has the advantages of simplicity in construction, low cost, high strength and reliability in connection. The grout sleeve comprises a sleeve body, sealing rings and a set bolt, wherein the sleeve body is provided with a grout hole and a vent hole; the set bolt is arranged in the middle of the sleeve body; massive bulges are arranged on the inner wall of the sleeve body; the sealing rings are arranged at two ends in the sleeve body. When a prefabricated member is assembled, two reserved steel bars of the prefabricated member are inserted from two ends of the sleeve body, are fixed by the set bolt and squeeze into the elastic sealing rubber rings, then, a cement-based grouting material is filled from the grout hole, and the two reserved steel bars are connected to form a whole body through the sleeve. The grout sleeve can be used for connecting various prefabricated member steel bars.

Description

technical field [0001] The invention relates to the technical field of concrete prefabricated components, in particular to a grouting sleeve for connecting steel bars of an assembled prefabricated component and a construction method thereof. Background technique [0002] In traditional cast-in-place concrete structures, the steel bars are often connected by means of lap joints, welded joints, or extruded sleeve mechanical connections. Rebar connections. The key problem is: the connection method of this kind of steel bar cannot be applied to the steel bar connection of prefabricated components. Contents of the invention [0003] The object of the present invention is to provide a connection grouting sleeve for the steel bars of assembled prefabricated components and a construction method thereof, which has the characteristics of simple construction and reliable performance. [0004] The purpose of the present invention is achieved like this. The prefabricated pre...

Claims

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Application Information

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IPC IPC(8): E04C5/16E04G21/12
Inventor 谷凡赵唯坚刘明吴陶高
Owner SHENYANG JIANZHU UNIVERSITY
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