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Prefabricated concrete hollow wall form expansion preventing device and construction process

A technology of prefabricated concrete and construction technology, which is applied to the preparation of formwork/formwork/work frame connectors, walls, and building components on site, which can solve the inconvenience of production and construction, the prohibition of relevant specifications, and the increase of prefabrication Thickness and other issues to achieve the effect of eliminating potential safety hazards, fully bearing the overall force, and reducing product cost

Pending Publication Date: 2020-12-18
赵红玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems brought about by the two methods are: the project cost has risen sharply, and at the same time, increasing the prefabricated thickness is not allowed by the relevant regulations.
However, there are still insurmountable shortcomings: because it is a point tie, if more tie points are added, it will cause inconvenience in production and construction, and there will be many holes that need post-processing

Method used

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  • Prefabricated concrete hollow wall form expansion preventing device and construction process
  • Prefabricated concrete hollow wall form expansion preventing device and construction process
  • Prefabricated concrete hollow wall form expansion preventing device and construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as image 3 As shown, a precast concrete hollow wall anti-expansion mold device provided in Embodiment 1 of the present invention includes a hollow wall and a pressure beam assembly, wherein the hollow wall includes two prefabricated wall panels 1 arranged in parallel and two prefabricated wall panels connected to each other. A plurality of tension bolt groups 2 of the wallboard 1, and a cast-in-place cavity 3 between two prefabricated wallboards 1, such as Figure 1-2 shown. The pressure beam assembly includes a plurality of bottom pressure beams 4, which are arranged on the outer sides of the two prefabricated wall panels 1 of the hollow wall and connected with the tension bolt groups 2 of the hollow wall.

[0056] In the embodiment of the present invention, the bottom pressure beams 4 on the two prefabricated wall panels 1 are arranged symmetrically, and the multiple bottom pressure beams 4 on one side are parallel to each other. The linear connection greatly ...

Embodiment 2

[0062] Such as Figure 7-9 As shown, on the basis of the above-mentioned embodiment, the pressure beam assembly includes a plurality of bottom pressure beams 4, and also includes at least one two-layer pressure beam and a pad beam 5 connected to the two-layer pressure beam, and the two-layer pressure beam is arranged on The outer side of the bottom pressure beam 4 and is connected with at least two bottom pressure beams 4 ; the pad beam 5 is located inside the second layer pressure beam and is in contact with the prefabricated wall panel 1 .

[0063] In this embodiment, the backing beam 5 is arranged between two adjacent bottom pressure beams 4 to overcome the problem of local mold expansion due to the large distance between the two bottom pressure beams 4 and the lack of support. Specifically, according to the calculation requirements, install the pad beam 5 as the case may be, that is, determine whether the pad beam 5 needs to be erected according to the difference in the la...

Embodiment 3

[0069] Such as Figure 10 As shown, on the basis of Embodiment 2, the pressure beam assembly includes a plurality of bottom pressure beams 4, at least one second-layer pressure beam and a backing beam 5 connected to the second-layer pressure beam, and also includes a sealing plate 8, a sealing plate 8 is connected to the second-layer pressure beam, and the second-layer pressure beam is connected to the bottom pressure beam 4, so that the sealing plate 8 is attached to the prefabricated wall panel 1, so that the holes and pre-embedded wall panels 1 are sealed by the sealing plate 8 Parts to avoid serious grout leakage in holes during secondary concrete pouring.

[0070] Such as Figure 11-12 As shown, in the embodiment of the present invention, the sealing plate 8 includes an end plate 802 and a sealing beam 801 arranged on the end plate 802, wherein the sealing beam 801 is connected to the two-layer pressure beam, and the end plate 802 is bonded to the prefabricated wall pane...

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Abstract

The invention belongs to the technical field of fabricated buildings, and particularly relates to a prefabricated concrete hollow wall form expansion preventing device and a construction process. Thedevice comprises a hollow wall and a pressing beam assembly, the pressing beam assembly comprises multiple bottom layer pressing beams, and the multiple bottom layer pressing beams are arranged on theouter sides of prefabricated wall plates of a hollow wall and connected with split bolt sets of the hollow wall; and the bottom layer pressing beams are of I-shaped structures and comprise flange plates I, web plates and flange plates II, wherein the flange plates I and the flange plates II are arranged in parallel, the web plates are vertically connected between the flange plates I and the flange plates II, the web plates are parallel to the prefabricated wall plates, and multiple connecting holes used for being connected with the split bolt sets are formed in the web plates in the length direction. According to the device and the process, the equipment investment is low, the effect is quick, unnecessary reinforcing bars in a cavity is reduced, and the manufacturing cost of a product isreduced.

Description

technical field [0001] The invention belongs to the technical field of prefabricated buildings, in particular to a prefabricated concrete hollow wall anti-expansion formwork device and construction technology. Background technique [0002] With the rapid development of construction industrialization, the demand for concrete prefabricated components is increasing year by year. In prefabricated buildings, the shear wall structure accounts for the largest proportion and the technology is the most complicated. In the existing codes, shear walls are divided into two types: solid shear walls and hollow shear walls (also known as double-sided laminated shear walls, hollow walls); solid shear walls can only rely on "sleeve grouting" The process of connecting the stressed steel bars up and down has great uncertainty in operation and connection quality, so it is gradually faded out of the prefabricated construction market. The hollow wall is also called the assembled integral double...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/00E04B2/84E04B2/86E04G17/065
CPCE04B2/00E04B2/84E04B2/86E04G17/065
Inventor 郑永春
Owner 赵红玲