CN211541761U - Detachable embedded tensioning notch - Google Patents
Detachable embedded tensioning notch Download PDFInfo
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- CN211541761U CN211541761U CN201922281220.7U CN201922281220U CN211541761U CN 211541761 U CN211541761 U CN 211541761U CN 201922281220 U CN201922281220 U CN 201922281220U CN 211541761 U CN211541761 U CN 211541761U
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- tooth screw
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Abstract
The utility model discloses a detachable embedded tensioning slot, which comprises an anchor backing plate, a fine-tooth screw rod, a polystyrene foam plate and an end mould steel plate, wherein the anchor backing plate is provided with a through hole, the screw rod is used for penetrating through the fine-tooth screw rod, the size of the polystyrene foam board is consistent with the size of a designed tensioning notch, the end die steel plate is provided with a hole, the position of the hole corresponds to the position of the reserved small hole of the formed prestressed anchor backing plate, the fine-tooth screw rod penetrates through the reserved small hole of the anchor backing plate, the polystyrene foam board and the reserved hole of the end die steel plate, a gasket and a nut are arranged on the fine-tooth screw rod on the outer side of the end mould steel plate and are firmly connected, the nut and the gasket are removed after concrete pouring is finished, the polystyrene foam plate is removed, after the precast beam is moved out, and (4) dismantling the polystyrene foam plate in the tensioning notch to finish the whole construction process of the tensioning notch. The utility model discloses the construction is simple and convenient, fix a position accurate, readily removable and remove, can ensure that the stretch-draw notch after the shaping satisfies the designing requirement.
Description
Technical Field
The utility model belongs to the technical field of bridge segment roof beam prefabrication construction, concretely relates to can dismantle embedded stretch-draw notch and construction method thereof.
Background
At present, in the construction of a section beam prefabricated tensioning notch, a box made of a wood mold is generally adopted, the position of the tensioning notch is inaccurately positioned by adopting the method, and the difficulty in dismantling the wood mold is large after the construction is finished. Therefore, a novel embedded tensioning slot with simple and convenient construction, accurate positioning and easy disassembly needs to be designed.
Disclosure of Invention
In order to overcome the technical defect that the tensioning notch position location that the box that adopts the wood pattern preparation to make leads to is inaccurate among the prior art, demolish the degree of difficulty big, the utility model provides a can dismantle embedded tensioning notch passes the preformed hole on reservation aperture, polystyrene cystosepiment and the end mould steel sheet on the anchor backing plate through thin tooth screw rod, installs gasket and nut and connect firmly on the thin tooth screw rod in the end mould steel sheet outside for the location of tensioning notch is accurate, and the construction back is easily dismantled, has solved above-mentioned technical problem.
The utility model discloses a following technical scheme realizes above-mentioned mesh, a can dismantle embedded stretch-draw notch, including anchor backing plate, thin tooth screw rod, polystyrene foam board, end mould steel sheet, gasket and nut, there is the reservation on the anchor backing plate to have the through-hole for pass thin tooth screw rod, polystyrene foam board size of a dimension is unanimous with design stretch-draw notch size of a dimension, trompil on the end mould steel sheet, and the position in hole corresponds with shaping prestressed anchor backing plate reservation aperture position, thin tooth screw rod passes reservation aperture on the anchor backing plate, polystyrene foam board and the end mould steel sheet on the reservation hole, installs gasket and nut and is connected firmly on the thin tooth screw rod in the end mould steel sheet outside, makes it form integratively.
Foretell embedded stretch-draw notch can be dismantled, polystyrene cystosepiment is the producer according to design thickness customization, and length and width size cuts into the size that needs according to the design drawing on the scene, compares ordinary cystosepiment and has higher intensity and rigidity, can resist the lateral pressure of concrete placement in-process, guarantees stretch-draw notch shaping design size.
According to the detachable embedded tensioning notch, the fine-tooth screw rod is a stainless steel rod piece, the end head of the fine-tooth screw rod on the anchor backing plate is in a hat shape, one end of the fine-tooth screw rod on the outer side end die is provided with threads, the fine-tooth screw rod is screwed and fixed on a steel plate of the outer side end die by using the gasket and the nut after being installed, and the pore sizes of the gasket and the nut correspond to the outer diameter size of the fine-tooth screw rod.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can reach following beneficial effect:
1. the utility model relates to a detachable embedded tensioning notch, compared with the traditional wood box, the detachable embedded tensioning notch is easier to position, and the defect that the wood box is difficult to position and the quality risk in the construction process are avoided;
2. the utility model discloses after the construction is accomplished, demolish polystyrene cystosepiment and than demolish traditional wooden box, worker efficiency of construction is higher to construction quality easily guarantees, can not cause the destruction to the component, and the construction effect is better, has established good basis for follow-up construction.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a front view of a detachable embedded tensioning slot of the present invention;
fig. 2 is a left side view of a detachable embedded tensioning slot of the present invention;
in the figure: 1-anchor backing plate, 2-fine thread screw, 3-polystyrene foam plate, 4-end die steel plate, 5-gasket and 6-nut.
Detailed Description
As shown in fig. 1 and 2, for the utility model relates to a can dismantle home view and left side view of embedded stretch-draw notch, including anchor backing plate 1, thin tooth screw rod 2, polystyrene foam board 3, end mould steel sheet 4, gasket 5 and nut 6, there is the through-hole to reserve on the anchor backing plate 1, be used for passing thin tooth screw rod 2, 3 size of a dimension of polystyrene foam board is unanimous with design stretch-draw notch size of a dimension, trompil on the end mould steel sheet 4, the position in hole corresponds with the position of 1 preformed aperture of shaping prestressing force anchor backing plate, thin tooth screw rod 2 passes the preformed aperture on the anchor backing plate 1, the preformed aperture on polystyrene foam board 3 and the end mould steel sheet 4, install gasket 5 and nut 6 and be connected firmly on the thin tooth screw rod 2 in the end mould steel sheet 4 outside, make it form an organic whole.
The polystyrene foam board 3 is customized according to the design thickness by a manufacturer, the length and the width are cut into required sizes on site according to design drawings, and compared with a common foam board, the polystyrene foam board has higher strength and rigidity, can resist the lateral pressure in the concrete pouring process, and ensures the design size of the formed stretching notch.
The fine-tooth screw rod 2 is a stainless steel rod piece, one end of the fine-tooth screw rod on the anchor backing plate 1 is in a hat shape, one end of the outer side end die steel plate 4 is provided with threads, the fine-tooth screw rod is screwed and fixed on the outer side end die steel plate 4 through a gasket 5 and a nut 6 after installation, and the pore sizes of the gasket 5 and the nut 6 correspond to the outer diameter size of the fine-tooth screw rod 2.
The utility model discloses when using, mainly accomplish the work progress of stretch-draw notch through following step:
the method comprises the following steps: measuring the position of the tensioning notch according to a design drawing, and determining the size of the tensioning notch;
step two: cutting the polystyrene foam board 3 with the thickness corresponding to the stretching notch into the size designed by the drawing;
step three: a hole is formed in the end die steel plate 4, and the position of the hole in the end die steel plate 4 corresponds to the position of the formed small hole in the prestressed anchor backing plate 1;
step four: installing a polystyrene foam plate 3 at the position of a tensioning slot, penetrating a prestressed anchor backing plate 1 and the polystyrene foam plate 3 through a preformed hole on the anchor backing plate 1, the polystyrene foam plate 3 and a preformed hole on an end die steel plate 4 by adopting a fine-tooth screw rod 2, arranging a gasket 5 and a nut 6 on the outer end die steel plate 4, and screwing the gasket and the nut into a whole;
step five: after the concrete pouring is finished and the formwork stripping condition is achieved, the nuts 6 on the outer sides of the end formwork steel plates 4 are unloaded, and then the follow-up operation can be carried out;
step six: and (4) after the precast beam is moved out, dismantling the polystyrene foam plate 3 in the tensioning notch to finish the construction process of the tensioning notch.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (4)
1. The utility model provides a can dismantle embedded stretch-draw notch, includes anchor backing plate (1), fine tooth screw rod (2), polystyrene foam board (3), end mould steel sheet (4), gasket (5) and nut (6), its characterized in that: have the reservation on anchor backing plate (1) to have the through-hole for pass fine tooth screw rod (2), polystyrene foam board (3) size of a dimension is unanimous with design stretch-draw notch size of a dimension, trompil on end mould steel sheet (4), the position in hole and shaping prestressing force anchor backing plate (1) reserve the position correspondence of aperture, fine tooth screw rod (2) pass reserve the aperture on anchor backing plate (1), polystyrene foam board (3) and end mould steel sheet (4) the aperture of reserving, install gasket (5) and nut (6) and be connected firmly on fine tooth screw rod (2) in the end mould steel sheet (4) outside, make it form an organic whole.
2. A removable in-line tensioning slot according to claim 1, wherein: the polystyrene foam board (3) is customized according to the design thickness, and has higher strength and rigidity compared with the common foam board.
3. A removable in-line tensioning slot according to claim 1, wherein: the fine-tooth screw rod (2) is a stainless steel rod piece, the end of the fine-tooth screw rod at the anchor backing plate (1) is in a hat shape, one end of the end die steel plate (4) is provided with threads, and the end is locked on the end die steel plate (4) by adopting a gasket (5) and a nut (6).
4. A removable in-line tensioning slot according to claim 1, wherein: the hole diameters of the gasket (5) and the nut (6) correspond to the outer diameter of the fine-tooth screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922281220.7U CN211541761U (en) | 2019-12-18 | 2019-12-18 | Detachable embedded tensioning notch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922281220.7U CN211541761U (en) | 2019-12-18 | 2019-12-18 | Detachable embedded tensioning notch |
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| Publication Number | Publication Date |
|---|---|
| CN211541761U true CN211541761U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922281220.7U Active CN211541761U (en) | 2019-12-18 | 2019-12-18 | Detachable embedded tensioning notch |
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| CN (1) | CN211541761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211107A (en) * | 2020-10-30 | 2021-01-12 | 中交路桥建设有限公司 | Tensioning notch template structure and method for ensuring welding length of cut steel bars of tensioning groove |
| CN114600790A (en) * | 2022-01-20 | 2022-06-10 | 中国人民解放军西部战区总医院 | Small animal blunt contusion striking system |
-
2019
- 2019-12-18 CN CN201922281220.7U patent/CN211541761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211107A (en) * | 2020-10-30 | 2021-01-12 | 中交路桥建设有限公司 | Tensioning notch template structure and method for ensuring welding length of cut steel bars of tensioning groove |
| CN114600790A (en) * | 2022-01-20 | 2022-06-10 | 中国人民解放军西部战区总医院 | Small animal blunt contusion striking system |
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