CN216304412U - Shallow formula bridge telescoping device that buries of grider - Google Patents
Shallow formula bridge telescoping device that buries of grider Download PDFInfo
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- CN216304412U CN216304412U CN202122010942.6U CN202122010942U CN216304412U CN 216304412 U CN216304412 U CN 216304412U CN 202122010942 U CN202122010942 U CN 202122010942U CN 216304412 U CN216304412 U CN 216304412U
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Abstract
The utility model discloses a grid beam shallow-buried bridge expansion device which comprises a middle beam steel arranged in the middle and side beam steels arranged on the left side and the right side of the middle beam steel and matched with the middle beam steel, wherein sealing rubber strips are correspondingly arranged between the middle beam steel and the side beam steels on the two sides; and the supporting boxes are arranged below the edge beam steels on the two sides, a plurality of supporting boxes are arranged on the two sides along the extending direction of the edge beam steels and the middle beam steels, and the edge beam steels on the two sides are fixed at the inner side positions of the upper ends of the supporting boxes on the two sides. The middle beam steel and the side beam steel of the device are supported and fixed, and the height of the supporting box is correspondingly set, so that the whole height of the middle beam steel and the whole height of the middle beam steel are 175mm, the whole height of the telescopic device is reduced, the telescopic device is suitable for all expansion joints with different reserved groove openings, and the market requirements of urban high-rise and high-speed special bridge sections can be met.
Description
Technical Field
The utility model relates to the technical field of expansion joint equipment, in particular to a lattice beam shallow-buried bridge expansion device.
Background
In the prior art, the reserved notches of the modular D160 expansion joints used by urban elevated express ways and part of high-speed special bridge sections are generally not deep, and some depths are only 200mm, but the reserved notches of most project modular D160 expansion joints such as expressways need to be more than 300mm, so that a common modular expansion device cannot be installed in the shallow reserved notches, the common requirements of urban elevated and high-speed special bridge sections cannot be met, and great troubles are brought to subsequent installation and design.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lattice beam shallow-buried bridge expansion device aiming at the defects in the prior art.
The technical scheme is as follows: the technical scheme adopted by the utility model for solving the problems is as follows: a grid beam shallow-buried bridge expansion device comprises middle beam steel arranged in the middle and side beam steel arranged on the left side and the right side of the middle beam steel and matched with the middle beam steel, wherein sealing rubber strips are correspondingly arranged between the middle beam steel and the side beam steel on the two sides; and the supporting boxes are arranged below the edge beam steels on the two sides, a plurality of supporting boxes are arranged on the two sides along the extending direction of the edge beam steels and the middle beam steels, the edge beam steels on the two sides are fixed at the inner side positions of the upper ends of the supporting boxes on the two sides, supporting cross beams are further arranged in the supporting boxes on the two sides, and the middle beam steel in the middle is correspondingly arranged on the supporting cross beams.
Further, the center sill steel is level with the side sill steels on both sides, and the height from the bottom of the support box on both sides to the upper end of the center sill steel is set to 175 mm.
Furthermore, the lower end parts of the side beam steels on the two sides are also provided with anchoring plates, the anchoring plates are correspondingly provided with anchoring ribs, and the anchoring plates are correspondingly arranged between the adjacent supporting boxes.
Furthermore, the supporting box and the anchoring plate are both provided with embedded steel bars embedded into concrete.
Furthermore, the outer sides of the upper ends of the supporting boxes on the two sides are provided with reinforcing steel bar nets.
Furthermore, the middle beam steel is correspondingly arranged to be an I-beam, the middle beam steel and the side beam steels on the two sides are also correspondingly provided with embedded grooves, and the sealing rubber strips are correspondingly arranged in the embedded grooves.
Furthermore, the supporting beams in the supporting boxes on two sides are supported and installed through spring parts and are fixed through fixing parts, a groove is further formed in the middle of each supporting beam, and the middle beam steel is correspondingly placed in the groove.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
(1) the supporting design of the girder steels on the two sides is simplified in the device, a series of supporting boxes are directly adopted to directly support and install the side girder steels, and the middle girder steel in the middle position is fixedly installed by adopting the supporting beams installed in the supporting boxes on the two sides, so that the middle girder steel and the side girder steel are both supported and fixed, and the height of the supporting boxes is correspondingly set, so that the integral height of the supporting boxes and the middle girder steel is 175mm, the integral height of the telescopic device is reduced, the telescopic device is suitable for all expansion joints with different reserved notch depths, and the market requirements of urban high racks and high-speed special bridge sections are met;
(2) the installation and construction process of the improved structure of the device is the same as the installation process of the existing expansion joint, the installation quality is easy to control, the spring part is arranged in the supporting box in the device, the spring part is not contacted with the outside air and is not easy to corrode, the maintenance is easy, the supporting beam is in spring type fixed installation, the structure is more stable and reasonable, the device can be popularized in the application place with the reserved notch at the expansion joint, the product installation quality is improved, the maintenance cost is reduced, and the practicability is stronger.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, 2 and 3, the lattice beam shallow-buried bridge expansion device comprises a middle beam steel 1 arranged in the middle and side beam steels 2 arranged on the left and right sides of the middle beam steel 1 and used with the middle beam steel 1, wherein sealing rubber strips 3 are correspondingly arranged between the middle beam steel 1 and the side beam steels 2 on the two sides; and the supporting boxes 4 are arranged below the edge beam steels 2 at the two sides, a plurality of supporting boxes 4 at the two sides are arranged along the extending direction of the edge beam steels 2 and the middle beam steels 1, the edge beam steels 2 at the two sides are fixed at the inner side positions of the upper ends of the supporting boxes 4 at the two sides, the supporting cross beams 5 are also arranged in the supporting boxes 4 at the two sides, and the middle beam steel 1 in the middle is correspondingly arranged on the supporting cross beams 5.
The supporting design of the two-side edge beam steel is simplified in the device, the edge beam steel is directly supported and installed by a series of supporting boxes, the middle beam steel at the middle position is fixedly installed by the supporting beams installed in the two-side supporting boxes, and the middle beam steel and the edge beam steel are supported and fixed, and the height of the supporting boxes is correspondingly set, so that the integral height of the middle beam steel and the integral height of the middle beam steel are 175mm, the integral height of the telescopic device is reduced, the telescopic device is suitable for all expansion joints with different reserved groove opening depths, and the market requirements of urban high racks and high-speed special bridge sections are met.
The middle beam steel 1 is flush with the side beam steel 2 at two sides, and the height from the bottom of the supporting box 4 at two sides to the upper end part of the middle beam steel 1 is 175 mm; the lower end parts of the edge beam steels 2 on the two sides are also provided with anchoring plates 6, the anchoring plates 6 are correspondingly provided with anchoring ribs 7, and the anchoring plates 6 are correspondingly arranged between the adjacent supporting boxes 4.
Embedded steel bars 8 embedded into concrete are also arranged on the supporting box 4 and the anchoring plate 6; the outer sides of the upper ends of the supporting boxes 4 on both sides are also provided with reinforcing steel bar meshes 9.
The middle beam steel 1 is correspondingly arranged as an I-beam, the middle beam steel 1 and the side beam steel 2 at two sides are also provided with corresponding embedded grooves 10, and the sealing rubber strips 3 are correspondingly arranged in the embedded grooves 10.
The supporting beams 5 in the supporting boxes 4 on both sides are supported and installed through spring elements and fixed through fixing pieces, a groove 11 is further arranged at the middle part of the supporting beam 5, and the middle beam steel 1 is correspondingly placed in the groove 11.
The installation and construction process of the improved structure of the device is the same as the installation process of the existing expansion joint, the installation quality is easy to control, the spring part is arranged in the supporting box in the device, the spring part is not contacted with the outside air and is not easy to corrode, the maintenance is easy, the supporting beam is in spring type fixed installation, the structure is more stable and reasonable, the device can be popularized in the application place with the reserved notch at the expansion joint, the product installation quality is improved, the maintenance cost is reduced, and the practicability is stronger.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the utility model and the appended claims, and all equivalent changes and modifications made within the spirit and scope of the utility model as claimed should be included in the appended claims.
Claims (7)
1. The utility model provides a shallow formula bridge telescoping device that buries of lattice girder which characterized in that: the steel plate comprises middle beam steel (1) arranged in the middle and side beam steel (2) which is arranged on the left side and the right side of the middle beam steel (1) and is matched with the middle beam steel (1) for use, wherein sealing rubber strips (3) are correspondingly arranged between the middle beam steel (1) and the side beam steel (2) on the two sides; and the lower part of the edge beam steel (2) positioned at the two sides is also provided with a plurality of supporting boxes (4), the supporting boxes (4) at the two sides are arranged along the extending direction of the edge beam steel (2) and the middle beam steel (1), the edge beam steel (2) at the two sides are fixed at the inner side positions of the upper ends of the supporting boxes (4) at the two sides, the supporting boxes (4) at the two sides are also internally provided with supporting cross beams (5), and the middle beam steel (1) positioned in the middle is correspondingly arranged on the supporting cross beams (5).
2. The grid beam shallow-buried bridge expansion device of claim 1, wherein: the middle beam steel (1) is flush with the side beam steel (2) on two sides in height, and the height from the bottom of the supporting box (4) on two sides to the upper end of the middle beam steel (1) is 175 mm.
3. The grid beam shallow-buried bridge expansion device of claim 2, wherein: the lower end of the side beam steel (2) on two sides is also provided with an anchoring plate (6), the anchoring plate (6) is correspondingly provided with an anchoring rib (7), and the anchoring plate (6) is correspondingly arranged between the adjacent supporting boxes (4).
4. The grid beam shallow-buried bridge expansion device of claim 3, wherein: and embedded steel bars (8) embedded into concrete are also arranged on the supporting box (4) and the anchoring plate (6).
5. The grid beam shallow-buried bridge expansion device of claim 1, wherein: the outer sides of the upper ends of the supporting boxes (4) at the two sides are also provided with reinforcing steel bar nets (9).
6. The grid beam shallow-buried bridge expansion device of claim 1, wherein: the middle beam steel (1) is correspondingly arranged into an I-beam, the middle beam steel (1) and the side beam steel (2) on the two sides are also provided with corresponding embedded grooves (10), and the sealing rubber strips (3) are correspondingly arranged in the embedded grooves (10).
7. The grid beam shallow-buried bridge expansion device of claim 1, wherein: the supporting beams (5) in the supporting boxes (4) on two sides are supported and installed through spring parts and are fixed through fixing parts, a groove (11) is further formed in the middle of each supporting beam (5), and the middle beam steel (1) is correspondingly placed in the groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122010942.6U CN216304412U (en) | 2021-08-24 | 2021-08-24 | Shallow formula bridge telescoping device that buries of grider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122010942.6U CN216304412U (en) | 2021-08-24 | 2021-08-24 | Shallow formula bridge telescoping device that buries of grider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216304412U true CN216304412U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122010942.6U Active CN216304412U (en) | 2021-08-24 | 2021-08-24 | Shallow formula bridge telescoping device that buries of grider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216304412U (en) |
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2021
- 2021-08-24 CN CN202122010942.6U patent/CN216304412U/en active Active
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