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Slurry-injection-free rib planting structure with expansion head and construction method thereof

A construction method and head-enlarging technology, applied in building construction, construction, etc., can solve problems such as injection of chemical glue, and achieve the effects of simple construction, reduced construction complexity, and increased stress area

Inactive Publication Date: 2020-02-28
四川建力源工程技术咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above problems, the present invention provides a grout-free planting bar structure with an expanding head and its construction method, which are used to solve the problems in the prior art that holes need to be drilled inside hard reinforced concrete and chemical glue needs to be injected

Method used

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  • Slurry-injection-free rib planting structure with expansion head and construction method thereof
  • Slurry-injection-free rib planting structure with expansion head and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like Figure 1-2 As shown, a grouting-free planting bar structure with an expanding head and its construction method, including tie bars 3, also include embedded tubes 4 and embedded parts 2 that are pre-embedded in reinforced concrete 1 in sequence, and embedded parts The middle part of 2 has a round hole 21, and the round hole 21 communicates with the embedded tube 4 and is located on the same horizontal line. One end of the tie bar 3 is provided with an expanding head 31, and the expanding head 31 can slide in the embedded tube 4 and expand The diameter of the head 31 is larger than the diameter of the circular hole 21 .

[0034] Working principle: While laying reinforced concrete 1, the pre-embedded tube 4 and the embedded parts 2 with round holes 21 are pre-embedded in the reinforced concrete 1 in sequence, and the pre-embedded tube 4 is pre-embedded in the reinforced concrete 1 first, Then extend the enlarged head 31 with the tie bar 3 into the embedded tube 4, a...

Embodiment 2

[0037] like Figure 1-2 As shown, on the basis of the above-mentioned embodiments, this embodiment provides a preferred structure of the embedded part and the embedded cylinder. That is, the embedded part 2 is a pre-embedded slab, and the pre-embedded slab is vertically arranged, and the tie bars 3 are connected to the pre-embedded slab, and the pre-embedded slab is pre-embedded in the reinforced concrete 1, and the contact area between the pre-embedded slab and the reinforced concrete 1 is large. When the tie bars 3 are subjected to horizontal tension or vertical shear force, due to the transferability of the force, the stress area of ​​the tie bars 3 is indirectly increased, so that the masonry structure and reinforced concrete 1 are connected more firmly; the pre-embedded tube 4 is a PVC plastic round pipe, which is durable, and the pre-embedded PVC plastic round pipe can provide a good sliding place for the enlarging head 31.

[0038] Preferably, the outer surface of the ...

Embodiment 3

[0042] like Figure 1-2 As shown, on the basis of Examples 1-2, this example provides a preferred structure that can further increase the firmness of the connection between the masonry structure and the reinforced concrete. That is, the side of the pre-embedded slab is connected with a plurality of anchor bars 5 extending into the reinforced concrete 1, and the tie reinforcement 3 is transmitted to the pre-embedded slab by the tension or shear force of the masonry structure, and the pre-embedded slab then transfers the tensile force to the pre-embedded slab. Or the shearing force is transmitted to the anchoring steel bar 5. Since the anchoring steel bar 5 is embedded in the reinforced concrete 1, the anchoring steel bar 5 can increase the anchoring capacity of the embedded slab, thereby further strengthening the connection between the masonry structure and the reinforced concrete 1. of firmness.

[0043] Preferably, the number of anchoring steel bars 5 on the same cross secti...

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Abstract

The invention relates to the technical field of building construction, in particular to a slurry-injection-free rib planting structure with an expansion head and a construction method thereof. The invention aims to solve the problems in the prior art that holes need to be drilled in hard reinforced concrete, and chemical gel needs to be injected in. The slurry-injection-free rib planting structurecomprises a steel tie bar, and further comprises a pre-buried barrel and a pre-buried component which are sequentially pre-buried in reinforced concrete; a round hole is formed in the pre-buried component; the round hole communicates with the pre-buried barrel and is on the same plane as the pre-buried barrel; the expansion head is arranged on one end of the steel tie bar; the expansion head canslide in the pre-buried barrel; and the diameter of the expansion head is larger than that of the round hole. According to the slurry-injection-free rib planting structure, the pre-buried component and the pre-buried barrel are pre-buried in the reinforced concrete; besides, the round hole is formed in the central part of the pre-buried component; the steel tie bar with the expansion head can slide in the pre-buried barrel, so that a hole does not need to be drilled in the reinforced tie bar in a later period; and the diameter of the expansion head is larger than that of the round hole, so that the chemical gel does not need to be injected in the round hole.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a grouting-free bar-planting structure with an expanding head and a construction method thereof. Background technique [0002] In building construction, the masonry structure needs to set a large number of tie bars inside the masonry structure according to the specifications, and the masonry structure is tightened in the reinforced concrete structure to increase the firmness between the masonry structure and the reinforced concrete structure. [0003] The basic process of setting the tie bars in the prior art is to construct the reinforced concrete structure first, and before constructing the masonry structure, it is necessary to drill holes in the side of the reinforced concrete that meet the age requirements, and put the tie bars into the drilled holes Then the chemical adhesive is injected under pressure to make the implanted steel bar and reinforced concrete eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/41
CPCE04B1/41
Inventor 宋明健
Owner 四川建力源工程技术咨询有限公司