CN216809635U - Steel distribution beam device for jacking bridge - Google Patents
Steel distribution beam device for jacking bridge Download PDFInfo
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- CN216809635U CN216809635U CN202123255089.0U CN202123255089U CN216809635U CN 216809635 U CN216809635 U CN 216809635U CN 202123255089 U CN202123255089 U CN 202123255089U CN 216809635 U CN216809635 U CN 216809635U
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Abstract
The utility model relates to the technical field of bridge jacking engineering, and particularly discloses a steel distribution beam device for bridge jacking, which comprises a distribution beam main body, a bridge main body, jacks and a column-embracing beam, wherein the distribution beam main body is arranged below the bridge main body, the jacks are uniformly arranged at the lower side of the distribution beam main body, the jacks are connected with the distribution beam main body through hydraulic jacks, and the bottoms of the jacks are connected with the column-embracing beam; the deformed steel bars are welded and fixed with the main body of the distribution beam; the bottom of the jack is provided with a steel plate, and the steel plate is connected with the column-holding beam; the distribution beam is used as a stress and force transmission component, and the jacking force can be uniformly transmitted to the stress surface at the bottom of the beam body by using the distribution beam during jacking, so that the concentrated force effect generated when the jack is directly contacted with the beam bottom is avoided; the device overall structure is simple, reasonable in design, and the construction deployment is convenient, can effectively improve the efficiency of construction.
Description
Technical Field
The utility model relates to the technical field of bridge jacking engineering, in particular to a steel distribution beam device for jacking a bridge.
Background
With the vigorous development of infrastructure construction, many road bridges are built. In the long-time use process, the actual load of a road bridge is far greater than the originally expected standard load, so that the lower support of the bridge is rapidly aged, engineering diseases such as support shear deformation failure, bridge displacement and the like occur, and a series of safety problems are brought. At this point, the lower support needs to be replaced by jacking the bridge. Before the lower support is replaced, the bridge needs to be lifted, then the lower support is replaced, and then the bridge is placed back to the original position, and the stress state of the beam body needs to be maintained basically when the support is replaced.
The existing bridge jacking mostly adopts a plurality of groups of jacks to assist in working, and because the jacks have small stress points on the bridge when being adopted, the jack easily generates a concentrated force effect, so that the bridge structure is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steel distribution beam device for jacking a bridge, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a steel distribution beam device for jacking a bridge comprises a distribution beam main body, a bridge main body, jacks and an embracing column beam, wherein the distribution beam main body is arranged below the bridge main body, multiple groups of the jacks are uniformly arranged on the lower side of the distribution beam main body, the jacks are connected with the distribution beam main body through hydraulic jacks, and the bottoms of the jacks are connected with the embracing column beam; the deformed steel bars are planted in the bridge main body and are welded and fixed with the distribution beam main body; the bottom of the jack is provided with a steel plate, and the steel plate is connected with the column beam.
Preferably, the top surface of the jack is provided with a reinforcing frame with a steel structure, and the reinforcing frame is welded and fixed with the top surface of the jack; the two reinforcing frames are arranged side by side and are respectively positioned at the two ends of the jack; the two reinforcing frames are fixedly connected through an X-shaped connecting frame.
Preferably, the jacks at the lower side of the distribution beam main body are symmetrically arranged along the central axis, and the jacks at the two sides of the central axis are divided into two parts; a steel-structured limiting frame is arranged between the two jacks, and a limiting block is arranged at the top of the limiting frame.
Preferably, the gap between the distribution beam main body and the bridge main body is filled with grouting material to form a filling layer.
Preferably, the jack bottom is provided with the flange structure, the flange structure passes through the stock with the steel sheet and is connected, the stock is inlayed in embracing the pillar roof beam.
Compared with the prior art, the utility model has the beneficial effects that: the distribution beam is used as a stress and force transmission component, and the jacking force can be uniformly transmitted to the stress surface at the bottom of the beam body by using the distribution beam during jacking, so that the concentrated force effect generated when the jack is directly contacted with the beam bottom is avoided; the device has the advantages of simple overall structure, reasonable design, convenient construction and deployment and capability of effectively improving the construction efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numbers in the figures: 1. a distribution beam body; 2. a bridge main body; 3. a jack; 4. a column beam is embraced; 5. a limiting frame; 6. a limiting block; 7. a hydraulic jack; 8. a connecting frame; 9. a reinforcing frame; 10. a filling layer; 11. and (3) a steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides a technical solution: a steel distribution beam device for jacking a bridge comprises a distribution beam main body 1, a bridge main body 2, jacks 3 and column embracing beams 4, wherein the distribution beam main body 1 is arranged below the bridge main body 2, a plurality of groups of the jacks 3 are uniformly arranged on the lower side of the distribution beam main body 1, the jacks 3 are connected with the distribution beam main body 1 through hydraulic jacks 7, and the bottoms of the jacks 3 are connected with the column embracing beams 4; the deformed steel bars are planted in the bridge main body 2 and are welded and fixed with the distribution beam main body 1; the bottom of the jack 3 is provided with a steel plate 11, and the steel plate 11 is connected with the column-embracing beam 4.
Further, a reinforcing frame 9 of a steel structure is arranged on the side surface of the jack 3, and the reinforcing frame 9 and the side surface of the jack 3 are welded and fixed; two reinforcing frames 9 are arranged side by side and are respectively positioned at two ends of the jack 3; the two reinforcing frames 9 are fixedly connected through an X-shaped connecting frame 8.
Further, the jacks 3 on the lower side of the distribution beam main body 1 are symmetrically arranged along the central axis, and the jacks 3 on the two sides of the central axis are divided into two parts; a steel-structured limiting frame 5 is arranged between the two jacks 3, and a limiting block 6 is arranged at the top of the limiting frame 5.
Further, the gap between the distribution beam main body 1 and the bridge main body 2 is formed into a filling layer 10 through grouting material pressure grouting.
Further, the bottom of the jack 3 is provided with a flange structure, the flange structure is connected with the steel plate 11 through an anchor rod, and the anchor rod is embedded in the column-holding beam 4.
The working principle is as follows: one embodiment of the present invention is described below for further illustration.
The jack 3 adopts a 500t specification, and 16 groups in total are adopted.
Before the distribution beam main body 1 is installed, a frame body is erected on the bottom surface of the bridge main body 2, and then the installation position of the distribution beam main body 1 is lofted out on the bridge main body 2 and a line is bounced; then implanted into the bottom of the bridge main body 2 at two sides of the central axis
The deformed steel bars are implanted into the steel tube at the transverse interval of 2m, the implantation depth is 12cm, and the exposed length is 18 cm-40 cm. The implanted steel bars are 2cm away from the 1 edge of the distribution beam main body, and A-level steel bar planting glue is selected.
After the threaded steel is implanted, the distribution beam body 1 transversely penetrates through the beam bottom, the distribution beam body 1 is hoisted to the beam bottom on the outer side by using 2 cranes 16t, the axis of the distribution beam body 1 is aligned with the elastic line at the bottom of the bridge body 2, and the distribution beam body 1 and the implanted threaded steel are welded immediately after the distribution beam body 1 is adjusted to be in a horizontal state. The length of the double-side welding between the deformed steel bar and the distribution beam body 1 is not less than 16 cm. After the distribution beam main body 1 is fixedly welded on the bridge main body 2, the grouting material C50 is poured between the distribution beam main body 1 and the bridge main body 2 due to the fact that the beam bottom of the bridge main body 2 has a certain gradient.
The top of the jack 3 is connected with the distribution beam main body 1 through a hydraulic jack 7, the bottom of the jack 3 is connected with a steel plate 11 through a flange structure and an anchor rod, and the anchor rod is embedded in the column holding beam 4. The lateral surfaces of the jacks 3 are connected through a transverse reinforcing frame 9, so that the structural stability between the adjacent jacks 3 is ensured; two reinforcing frames 9 are arranged side by side and fixedly connected through an X-shaped connecting frame 8, so that the stability of the jack 3 is further enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a steel distribution beam device for bridge jacking which characterized in that: the distribution beam comprises a distribution beam main body (1), a bridge main body (2), jacks (3) and column-embracing beams (4), wherein the distribution beam main body (1) is arranged below the bridge main body (2), multiple groups of the jacks (3) are uniformly arranged on the lower side of the distribution beam main body (1), the jacks (3) are connected with the distribution beam main body (1) through hydraulic jacks (7), and the bottoms of the jacks (3) are connected with the column-embracing beams (4); the deformed steel bars are planted in the bridge main body (2) and are welded and fixed with the distribution beam main body (1); the steel plate (11) is arranged at the bottom of the jack (3), and the steel plate (11) is connected with the column-embracing beam (4).
2. The steel distribution beam device for jacking a bridge according to claim 1, wherein: a reinforcing frame (9) with a steel structure is arranged on the side surface of the jack (3), and the reinforcing frame (9) is welded and fixed with the side surface of the jack (3); two reinforcing frames (9) are arranged side by side and are respectively positioned at two ends of the jack (3); the two reinforcing frames (9) are fixedly connected through an X-shaped connecting frame (8).
3. The steel distribution beam device for jacking a bridge according to claim 1, wherein: the jacks (3) on the lower side of the distribution beam main body (1) are symmetrically arranged along the central axis, and the jacks (3) on the two sides of the central axis are divided into two parts; a steel-structured limiting frame (5) is arranged between the two jacks (3), and a limiting block (6) is arranged at the top of the limiting frame (5).
4. The steel distribution beam device for jacking a bridge according to claim 1, wherein: and a gap between the distribution beam main body (1) and the bridge main body (2) is filled with grouting material under pressure to form a filling layer (10).
5. The steel distribution beam device for jacking a bridge according to claim 1, wherein: the bottom of the jack (3) is provided with a flange structure, the flange structure is connected with the steel plate (11) through an anchor rod, and the anchor rod is embedded in the column-embracing beam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123255089.0U CN216809635U (en) | 2021-12-22 | 2021-12-22 | Steel distribution beam device for jacking bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123255089.0U CN216809635U (en) | 2021-12-22 | 2021-12-22 | Steel distribution beam device for jacking bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216809635U true CN216809635U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123255089.0U Active CN216809635U (en) | 2021-12-22 | 2021-12-22 | Steel distribution beam device for jacking bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216809635U (en) |
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2021
- 2021-12-22 CN CN202123255089.0U patent/CN216809635U/en active Active
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