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Precast grouted steel bar connecting sleeve and construction method thereof

A technology of steel connecting sleeves and prefabricated sleeves, applied in the directions of structural elements, building components, building reinforcements, etc., can solve the problems of complicated steel connection construction and unsuitable prefabricated concrete structures, etc., and achieve the effect of reliable connection effect.

Inactive Publication Date: 2011-05-25
HEILONGJIANG YUHUI NEW BUILDING MATERIAL
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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, mechanical connection methods such as lap joints, welded connections, or extruded sleeves are often used for the connection of steel bars. The construction of steel bar connections is relatively complicated, and the connection of steel bars must be completed before pouring concrete, which is not applicable Prefabricated construction method for precast concrete structures

Method used

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  • Precast grouted steel bar connecting sleeve and construction method thereof
  • Precast grouted steel bar connecting sleeve and construction method thereof
  • Precast grouted steel bar connecting sleeve and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The prefabricated grouting steel bar connection sleeve comprises: a sleeve body 1, elastic rubber sealing rings 2 are installed at both ends of the sleeve body 1, and a limit bolt 3 is arranged in the middle of the sleeve body 1, so that Both ends of the sleeve body are provided with grouting holes 4 and exhaust holes 5 communicating with the inside, and the inner wall of the sleeve body is a tapered thread 6 .

Embodiment 2

[0019] In the prefabricated sleeve grouting reinforcing bar connection sleeve described in Example 1, the circumferential thickness of the elastic rubber sealing ring is larger than the gap between the sleeve body and the reinforcing bar, and the inner diameter of the elastic rubber sealing ring is smaller than the outer diameter of the reinforcing bar. A section of thread is provided on the wall of the grouting hole and the vent hole.

Embodiment 3

[0021] Utilize embodiment 1 or embodiment 2 described prefabricated cover grouting steel bar connection sleeve to carry out the working method of construction, after described prefabricated concrete member is manufactured in factory, its reserved steel bar 7 ends are temporarily fully inserted into sleeve, and It can be temporarily fixed with limit bolts to avoid loss. When another prefabricated concrete component is hoisted and positioned, and its reserved steel bars 8 are correspondingly close to it, move the sleeve 1 to the connection of the steel bars so that the sleeves are respectively inserted into two Coaxial steel bars to the design depth, screw in the limit bolt 3, squeeze in the elastic rubber sealing ring 2, connect the grouting pipe and pour the cement-based grouting material through the grouting hole 4, and ventilate through the vent hole 5 to ensure that the grouting is dense. After the grouting material is solidified and hardened, the reserved steel bar 7 and th...

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Abstract

The invention discloses a precast grouted steel bar connecting sleeve and a construction method thereof. In the traditional cast-in-place concrete structure, steel bars are mainly connected by adopting a mechanical connecting method such as lapping, welding or sleeve extrusion or the like, the construction for connecting the steel bars is complex, and the connection of the steel bars must be completed before the concrete is poured, so the connecting method is not suitable for an assembled construction method for a precast concrete structure. The precast grouted steel bar connecting sleeve comprises a sleeve body (1), two ends of the sleeve body (1) are provided with elastic rubber sealing rings (2), a limiting bolt (3) is arranged in the middle of the interior of the sleeve body (1), two ends of the sleeve body are provided with a grouting hole (4) and an exhaust hole (5) communicated with the interior, and the inner wall of the sleeve body is provided with a conical thread (6). The precast grouted steel bar connecting sleeve is suitable for assembled connection construction of the steel bars.

Description

Technical field: [0001] The invention relates to a working method of a prefabricated sleeve grouting steel bar connection sleeve used for the assembled connection of steel bars. Background technique: [0002] In traditional cast-in-place concrete structures, mechanical connection methods such as lap joints, welded connections, or extruded sleeves are often used for the connection of steel bars. The construction of steel bar connections is relatively complicated, and the connection of steel bars must be completed before pouring concrete, which is not applicable Prefabricated construction method for precast concrete structures. Invention content: [0003] The object of the present invention is to provide a prefabricated sleeve grouting steel bar connection sleeve with simple operation and reliable performance and a construction method using the sleeve. [0004] Above-mentioned purpose realizes by following technical scheme: [0005] The prefabricated grouting steel bar con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/16
Inventor 刘文清闫红缨姜洪斌
Owner HEILONGJIANG YUHUI NEW BUILDING MATERIAL
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