CN215052153U - Device for preventing bridge closure template falls - Google Patents
Device for preventing bridge closure template falls Download PDFInfo
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- CN215052153U CN215052153U CN202120482416.7U CN202120482416U CN215052153U CN 215052153 U CN215052153 U CN 215052153U CN 202120482416 U CN202120482416 U CN 202120482416U CN 215052153 U CN215052153 U CN 215052153U
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- steel
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- square steel
- bridge
- closure
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Abstract
The utility model discloses a device for preventing bridge closure template falls, include the bracket base that is setting up on the box girder roof and the box girder bottom plate of bridge closure section both sides, set up closure section steel template subassembly in the bridge closure section, set up the anchor reinforcing bar in the bracket base of coaxial arrangement respectively, anchor reinforcing bar outside end is fixed respectively and is setting up square steel supporting seat, a square steel is being coaxial suit in the square steel supporting seat between two bracket bases of coaxial arrangement, set up the steel wedge between square steel one end and one of them square steel supporting seat, level respectively is setting up the prestressing force pore canal in the bridge box girder of closure section both sides, the prestressing force pore canal fit in setting up the prestressing force reinforcing bar, through the prestressing force reinforcing bar and bracket base, square steel accomplish the location locking of closure section steel template subassembly. The device can demolish the template and prevent that the template from falling and provide reliable performance after closing the dragon for the bridge, stops that the template falls.
Description
Technical Field
The utility model relates to a prevent device that bridge closure template falls, specifically speaking relate to a prevent device that formwork support falls after being applicable to large-span bridge closure, belong to bridge and culvert engineering technical field.
Background
Traditional large-span bridge need be with locking device fixed closure section space when closing up, installs the steel template, and the ligature closes up a section reinforcing bar, lays closure section prestressing force pore canal, pours the concrete, demolishs the steel template after treating the concrete reaches design strength, and stretch-draw closure prestressing steel bar accomplishes the bridge and closes the dragon. The construction method has the advantages that when the closure steel template is detached, the falling problem often occurs due to improper operation or aging failure of the template, pedestrians or vehicles are hit very often, and even the major accident that the running of a railway line under a bridge is interrupted is caused.
Disclosure of Invention
The utility model aims at providing a prevent device that bridge closure template falls can prevent that the template from falling and providing reliable performance for demolising the template after the bridge closure, stops the accident potential of template falling.
The utility model discloses a realize above-mentioned purpose, the technical solution who adopts is: the utility model provides a device for preventing bridge closure template falls, includes that the bracket base that is setting up about being dorsad interval respectively on the box girder roof and the box girder bottom plate of bridge closure section both sides, setting up closure section steel template subassembly in the bridge closure section the vertical inner wall in both sides and the bottom surface of closure section steel template subassembly respectively set up the shear resistant member, set up anchor bar in the bracket base of coaxial arrangement respectively, anchor bar outside end is fixed respectively and is being set up square steel supporting seat, a square steel is being coaxial suit in the square steel supporting seat between two bracket bases of coaxial arrangement, is setting up the steel wedge between square steel one end and one of them square steel supporting seat, respectively the level is setting up the prestressing force pore canal in the bridge box girder of closure section both sides, the prestressing force pore canal fit in and is setting up the prestressing force muscle, through prestressing force muscle and bracket base, And the square steel completes the positioning and locking of the steel template assembly at the closure section.
Pouring closure section concrete, and removing the square steel supporting seat, the steel wedge, the square steel, the bracket base and the anchoring steel bar after the concrete reaches the designed strength; the steel template assembly at the closure section is not removed, so that the steel template assembly is connected with the beam body concrete into a whole through the shear resistant piece, a steel-concrete composite beam structure is formed after closure, and the closure template is not dropped through the non-removal of the closure template. The utility model provides an anchoring point and a supporting point of the rigid square steel by arranging the bracket base, and provides fastening force for the rigid support of the square steel; through setting up prestressing steel strand wires, locking square steel supporting seat. Through setting up the shear resistant member, strengthened being connected of steel template and concrete. The steel structure with the steel-concrete composite structure is formed by arranging the steel inner template and the steel outer template. The steel inner template and the steel outer template are coated with the anticorrosive paint, so that the durability of the template is ensured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side sectional view of the structure of FIG. 1;
fig. 3 is a front view structure schematic diagram of a steel formwork assembly of a closure section.
Detailed Description
The utility model provides a prevent device that bridge closure template falls, as shown in fig. 1, 2, 3, includes that it sets up the bracket base 1 to be left and right back of the body interval respectively on box girder roof 12 and the box girder bottom plate 13 of bridge closure section both sides, is setting up closure section steel template subassembly 11 in the bridge closure section the outer mould 8 of closure section steel template subassembly 11, the vertical inner wall in centre form 9 both sides and the outer mould 8 bottom surface on set up shear 10 respectively. Anchor reinforcing bar 2 is being set up respectively in the bracket base 1 of coaxial arrangement, and anchor reinforcing bar 2 outside end is fixed respectively and is being set up square steel supporting seat 3, and coaxial suit is being a square steel 4 in the square steel supporting seat 3 between two bracket bases of coaxial arrangement, is setting up steel wedge 5 between 4 one end of square steel and one of them square steel supporting seat 3 for it is spacing and fixed to carry out square steel 4. Prestressed channels 6 are horizontally arranged in the bridge box girders on two sides of the closure section respectively, prestressed reinforcements 7 are arranged in the prestressed channels 6 in a matching manner, and the positioning and locking of the closure section steel formwork assembly 11 are completed through the prestressed reinforcements 7, the bracket base 1 and the square steel 4.
Pouring closure section concrete, and removing the square steel supporting seat 3, the steel wedge 5, the square steel 4, the bracket base 1 and the anchoring steel bar 2 after the concrete reaches the designed strength; the steel formwork assembly 11 at the closure section is not removed, so that the steel formwork assembly is connected with the beam body concrete into a whole through the shear resistant piece 10, a steel-concrete composite beam structure is formed after closure, and the closure formwork does not fall off through the non-removal of the closure formwork assembly 11.
Claims (1)
1. The utility model provides a device that prevents bridge closure template from falling, includes the bracket base that is setting up about being respectively on the box girder roof and the box girder bottom plate of bridge closure section both sides dorsad interval, setting up closure section steel template subassembly in the bridge closure section the vertical inner wall in both sides and the bottom surface of closure section steel template subassembly on set up respectively and shearing characterized by: the anchor reinforcing steel bars are respectively arranged in the corbel bases which are coaxially arranged, the outer side ends of the anchor reinforcing steel bars are respectively fixedly provided with square steel supporting seats, one piece of square steel is coaxially sleeved in the square steel supporting seat between the two corbel bases which are coaxially arranged, a steel wedge is arranged between one end of the square steel and one of the square steel supporting seats, prestressed ducts are horizontally arranged in the bridge box girders of the two closure sections respectively, prestressed reinforcing steel bars are arranged in the prestressed ducts in a matched mode, and the corbel bases and the square steel are used for positioning and locking the steel template assemblies of the closure sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120482416.7U CN215052153U (en) | 2021-03-06 | 2021-03-06 | Device for preventing bridge closure template falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120482416.7U CN215052153U (en) | 2021-03-06 | 2021-03-06 | Device for preventing bridge closure template falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215052153U true CN215052153U (en) | 2021-12-07 |
Family
ID=79255123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120482416.7U Active CN215052153U (en) | 2021-03-06 | 2021-03-06 | Device for preventing bridge closure template falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215052153U (en) |
-
2021
- 2021-03-06 CN CN202120482416.7U patent/CN215052153U/en active Active
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