CN219653551U

CN219653551U - Tool for replacing support in narrow space of plate girder bridge

Info

Publication number: CN219653551U
Application number: CN202320105305.3U
Authority: CN
Inventors: 孙雪成; 陈耀井; 张珉玮; 陈磊
Original assignee: Jiangsu Expressway Engineering Conservation Co ltd
Current assignee: Jiangsu Expressway Engineering Conservation Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-09-08
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses a tool for replacing a support in a narrow space of a plate girder bridge, which comprises a first bottom plate and a second bottom plate, wherein the first bottom plate is positioned on one side of the second bottom plate, the tops of the first bottom plate and the second bottom plate are fixedly connected with support columns through bolts, the top ends of the support columns are fixedly connected with a top plate through bolts, the outer walls of one side of the first bottom plate and the outer wall of one side of the second bottom plate are fixedly connected with a support plate through bolts, and the outer wall of one side of the top plate is fixedly connected with a limiting plate through bolts. This instrument is changed to narrow and small space support of girder bridge through the combined installation of first bottom plate and second bottom plate, can make the instrument set up in the outside of support in narrow and small space, realizes that the instrument is quick convenient installation fixed to through the fixed connection of first bottom plate and second bottom plate, guarantee the fixed on the jack position, reduce the production of skew, also can realize synchronous jacking, avoid taking place the circumstances of eccentric pressurized or local pressure-bearing.

Description

Tool for replacing support in narrow space of plate girder bridge

Technical Field

The utility model relates to the technical field of support replacement, in particular to a tool for replacing a support in a narrow space of a plate girder bridge.

Background

The bridge support is an important structural component for connecting the upper structure and the lower structure of the bridge, is positioned between the bridge and the filler stone, can reliably transfer the load and deformation born by the upper structure of the bridge to the lower structure of the bridge, and is an important force transmission device of the bridge.

The bridge beam supports are easy to damage after being used for a period of time, the damaged supports are required to be checked regularly and replaced, when the supports are replaced, the bridge beam is usually supported by using a hydraulic jack, constructors take out the damaged supports, then a new support is placed at a preset position, and finally the new support is fixed.

However, when the device is applied, the symmetry of jacks at two sides of the bent cap and the synchronous jacking process are strictly required, so that the eccentric compression or partial compression is prevented, the partial instability of the saddle-shaped bracket is avoided, and therefore, a tool for replacing a support in a narrow space of a plate girder bridge is provided to solve the problems.

Disclosure of Invention

The utility model aims to provide a tool for replacing a support in a narrow space of a plate girder bridge, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tool is changed to narrow and small space support of girder bridge, includes first bottom plate and second bottom plate, first bottom plate is located one side of second bottom plate, and the top of first bottom plate and second bottom plate all passes through bolt fixedly connected with support column, bolt fixedly connected with roof is passed through on the top of support column, all pass through bolt fixedly connected with backup pad on one side outer wall of first bottom plate and second bottom plate, pass through bolt fixedly connected with limiting plate on one side outer wall of roof, be provided with first connecting block on one side outer wall of first bottom plate, be provided with the second connecting block on one side outer wall of second bottom plate, through connecting bolt fixed connection between first connecting block and the second connecting block, bolt fixedly connected with jack is passed through at the top of backup pad.

Compared with the prior art, the utility model has the beneficial effects that: this instrument is changed to narrow and small space support of girder bridge through the combined installation of first bottom plate and second bottom plate, can make the instrument set up in the outside of support in narrow and small space, realizes that the instrument is quick convenient installation fixed to through the fixed connection of first bottom plate and second bottom plate, guarantee the fixed on the jack position, reduce the production of skew, also can realize synchronous jacking, avoid taking place the circumstances of eccentric pressurized or local pressure-bearing.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a top view of a first base plate and a second base plate of the present utility model;

FIG. 3 is a front view of a first bottom plate and top plate of the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 2.

In the figure: 1. a first base plate; 2. a second base plate; 3. a support column; 4. a top plate; 5. a support plate; 6. a limiting plate; 7. a first connection block; 8. a second connection block; 9. a connecting bolt; 10. and (5) a jack.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a tool is changed to narrow and small space support of girder bridge, the cross section of first bottom plate 1, second bottom plate 2 and roof 4 is semicircle arc structure, through the semicircle arc structure of first bottom plate 1, second bottom plate 2 and roof 4, can make to become annular structure, and then can make the instrument set up in the outside of girder bridge support, is convenient for carry out convenient installation in narrow and small space to make the change of follow-up support.

The support columns 3 are arranged in total, and each two groups of six support columns 3 are distributed at the top of the first bottom plate 1 and the top of the second bottom plate 2 at equal intervals, so that the top plate 4 can be supported more stably.

The output of jack 10 runs through limiting plate 6, carries out spacingly through limiting plate 6 to the output of jack 10, can guarantee jack 10 to the precision and the stability of girder bridge jack-up.

Screw holes for installing and fixing the jack 10 are formed in the top of the supporting plate 5, so that the jack 10 can be installed and fixed conveniently, and position offset dislocation is avoided.

The contact surfaces of the first connecting block 7 and the second connecting block 8 are matched, so that the first connecting block 7 and the second connecting block 8 can be stably connected together.

Through holes are formed in the outer walls of one sides of the first connecting block 7 and the second connecting block 8, so that the connecting bolts 9 penetrate through the first connecting block 7 and the second connecting block 8 to be fastened.

The jack 10 adopts a hydraulic jack, so that the jacking capacity of the jack 10 is ensured, and further, the jacking of a slab bridge can be realized.

Working principle: when the bridge girder bridge is used, the first bottom plate 1 and the second bottom plate 2 are respectively placed on the outer sides of the supports between the bridge girder bridge and the bridge pier, the first bottom plate 1 and the second bottom plate 2 are transversely pushed into a narrow space, the first connecting block 7 and the second connecting block 8 are butted together, the first connecting block 7 and the second connecting block 8 are fixedly connected through the connecting bolts 9, the replacement tool is arranged on the outer sides of the supports, the bridge girder bridge is jacked up by the output end on one side of the jack 10 after the jack 10 works, the supports are detached and replaced by the jack 10 after the extrusion of the supports is lost, the supports are replaced by the jack 10 after the replacement of the supports is completed, the bridge girder bridge moves downwards under the action of gravity and extrudes the supports, the connecting bolts 9 are screwed down after the replacement of the supports is completed, the first connecting block 7 and the second connecting block 8 are separated, and the bridge girder bridge is taken out from the narrow space of the bridge girder bridge pier after the first bottom plate 1 and the second bottom plate 2 are separated.

To sum up: this instrument is changed to narrow and small space support of girder bridge through the combined installation of first bottom plate 1 and second bottom plate 2, can make the instrument set up in the outside of support in narrow and small space, realizes the quick convenient installation of instrument and fixes to through the connection of first bottom plate 1 and second bottom plate 2 fixed, guarantee the fixed on the jack 10 position, reduce the production of skew, also can realize synchronous jacking, avoid taking place the circumstances of eccentric pressurized or local pressure-bearing.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. The utility model provides a tool is changed to narrow and small space support of girder bridge, includes first bottom plate (1) and second bottom plate (2), its characterized in that: the utility model discloses a lifting jack, including first bottom plate (1), second bottom plate (2), connecting bolt (9), jack, connecting bolt (10) are passed through to the top of support column (3), first bottom plate (1) is located one side of second bottom plate (2), and all through bolt fixedly connected with backup pad (5) on the outer wall of one side of first bottom plate (1) and second bottom plate (2) through bolt fixedly connected with limiting plate (6), be provided with first connecting block (7) on the outer wall of one side of first bottom plate (1), be provided with second connecting block (8) on the outer wall of one side of second bottom plate (2), through connecting bolt (9) fixedly connected with between first connecting block (7) and the second connecting block (8), the top of backup pad (5) is through bolt fixedly connected with jack (10).

2. The replacement tool for a beam bridge small space support according to claim 1, wherein: the cross sections of the first bottom plate (1), the second bottom plate (2) and the top plate (4) are of semicircular arc structures.

3. The replacement tool for a beam bridge small space support according to claim 1, wherein: six support columns (3) are arranged in total, and every two support columns (3) are distributed at the tops of the first bottom plate (1) and the second bottom plate (2) at equal intervals.

4. The replacement tool for a beam bridge small space support according to claim 1, wherein: the output end of the jack (10) penetrates through the limiting plate (6).

5. The replacement tool for a beam bridge small space support according to claim 1, wherein: screw holes for installing and fixing the jack (10) are formed in the top of the supporting plate (5).

6. The replacement tool for a beam bridge small space support according to claim 1, wherein: the contact surfaces of the first connecting block (7) and the second connecting block (8) are matched in a fit manner.

7. The replacement tool for a beam bridge small space support according to claim 1, wherein: through holes are formed in the outer walls of one sides of the first connecting block (7) and the second connecting block (8).

8. The replacement tool for a beam bridge small space support according to claim 1, wherein: the jack (10) adopts a hydraulic jack.