CN220643910U

CN220643910U - Device is changed to bridge superstructure case roof beam bracket support

Info

Publication number: CN220643910U
Application number: CN202322212386.XU
Authority: CN
Inventors: 王磊; 王技; 马新勇; 张权; 刁琪; 孔佑畅
Original assignee: Cccc Ruitong Road & Bridge Maintenance Science & Technology Co ltd
Current assignee: Cccc Ruitong Road & Bridge Maintenance Science & Technology Co ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-03-22
Anticipated expiration: 2033-08-16

Abstract

The utility model relates to the technical field of bridge maintenance, in particular to a device for replacing a bracket support of a box girder of a bridge superstructure. The utility model can not only take out the original support in a narrow space, but also accurately position the original support, so that the replaced new support can be accurately placed at the original support position. The technical scheme adopted by the device comprises a pair of steel structure components, wherein the two steel structure components are connected through a steel rod; the structure of each steel structure assembly comprises a first steel member and a second steel member; the structure of the first steel member is a rectangular frame with a top surface and a side surface open, two rows of positioning holes are uniformly distributed on one side surface, a handle is fixedly arranged on one small-area surface of the rectangular frame, and one end of the side surface open extends outwards; the structure of the steel member II is an L-shaped plate, a U-shaped groove is formed in the long side end portion of the L-shaped plate, bolts are arranged in the U-shaped groove, and the steel member I and the steel member II are connected into a whole through the bolts.

Description

Device is changed to bridge superstructure case roof beam bracket support

Technical Field

The utility model relates to the technical field of bridge maintenance, in particular to a device for replacing a bracket support of a box girder of a bridge superstructure.

Background

Bridge supports belong to removable parts, and the general design life is 15 years, and the bridge can appear ageing, deformation, disease such as fracture after many years operation, loses normal support function. Therefore, the upper and lower members of the bridge are abnormally restrained, so that the bridge is seriously damaged, and the main beam is seriously deformed, so that the normal use function of the bridge is affected. Therefore, the bridge supports which have been used for a long time need to be replaced periodically.

The existing bridge support is replaced by using a pier cap or a temporary support as a jack-up platform, and removing and replacing the original bridge support after Liang Tiding is lifted to a control height.

Because the space of the bracket support of the box girder is very narrow, the existing lifting platform used as a jack is difficult to take out the old support through a pier cap or a temporary support, and the new support is difficult to accurately install, because the position of the support has great influence on the girder body, the new support is required to be placed at the original support position, and therefore the box girder is prevented from generating redundant internal force.

Disclosure of Invention

The utility model provides a device for replacing a bracket support of a box girder of a bridge superstructure, which not only can take out an original support in a narrow space, but also can accurately position the original support, so that a new support after replacement can be accurately placed at the position of the original support.

The technical scheme adopted by the utility model is as follows:

the utility model provides a bridge superstructure case roof beam bracket support change device which characterized in that: the steel structure comprises a pair of steel structure components, wherein the two steel structure components are connected through a steel rod;

the structure of each steel structure assembly comprises a first steel member and a second steel member;

the structure of the first steel member is a rectangular frame with a top surface and a side surface open, two rows of positioning holes are uniformly distributed on one side surface, a handle is fixedly arranged on one small-area surface of the rectangular frame, and one end of the side surface open extends outwards;

the structure of the steel member II is an L-shaped plate, a U-shaped groove is formed in the long side end portion of the L-shaped plate, bolts are arranged in the U-shaped groove, and the steel member I and the steel member II are connected into a whole through the bolts.

Further, the steel bars are provided with 2, and the both ends of every steel bar are provided with the nut respectively, and two steel bars set up from top to bottom, pass the locating hole and pass through the nut and connect a pair of steel member one.

Further, the handle is a handle with a staff gauge.

Compared with the prior art, the utility model has the beneficial effects that

1. The utility model has reasonable structural design and easy operation, and the original support can be taken out in a narrow space through the structure.

2. The device is provided with the handle with the scale, so that the position of the old support can be positioned when the old support is taken, and a new support is accurately placed in the position of the old support, thereby realizing accurate positioning.

3. According to the utility model, two welded steel members are formed into a whole through the bolts and the steel bars, so that the structure is small in volume and can be assembled rapidly; the front end of the device is provided with the handle, thereby being convenient for field operation.

Drawings

Fig. 1 is a view showing the effect of the present utility model.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a schematic structural view of a first steel member of the present utility model.

Fig. 4 is a schematic structural view of a second steel member of the present utility model.

Fig. 5 is a schematic view of the assembled structure of the first and second steel members of the present utility model.

Fig. 6 is a schematic view of a steel bar according to the present utility model.

Marking: 1. the support, steel member one, steel member two, 4, the bolt, 5, take the scale handle, 6, the steel bar, 7, the nut, 8, the bracket on the case roof beam, 9, the bracket under the case roof beam.

Detailed Description

The utility model will be described in detail below with reference to the drawings and the detailed description.

The embodiment provides a replacement device for a bracket support of a box girder of a bridge upper structure, which comprises a pair of steel structure components, wherein the structure of each steel structure component comprises a steel member I2 and a steel member II 3, the structure of the steel member I2 is a rectangular frame with a top surface and a side surface which are open, two rows of positioning holes are uniformly distributed on one side surface, a handle 5 with a scale is fixedly arranged on one small area surface of the rectangular frame, so that the positions of a new support and an old support are conveniently measured, one end of the side surface which is open extends outwards to fix the steel member II 3, and the replacement device is shown in fig. 3; the structure of steel member two 3 is the L template, and the long limit end of L template is provided with the U type groove, and L template can block in the support rear side, is convenient for take out the support, as shown in fig. 4, is provided with bolt 4 in the U type groove, and steel member one 2 and steel member two 3 pass through bolt 4 to be connected in an organic wholely, and the minor face of steel member two 3 is laminated with a small area face of steel member one 2, as shown in fig. 5.

The two steel members 2 are connected through two steel bars 6, nuts 7 are respectively arranged at two ends of each steel bar 6, the two steel bars 6 are arranged up and down, and the pair of steel members 2 are connected through the nuts 7 through positioning holes, as shown in fig. 2 and 6.

The device provided by the utility model has the advantages that the support 1 is enclosed between the two first steel members 2 and the steel bar 6, the old support of the bridge box girder bracket in a narrow space is taken out, and the new support is accurately placed at the original support position.

The working process of the utility model comprises the following steps:

step 1, the assembled steel member assembly is placed at the position of an old support and is tightly attached to the old support through a handle 5 with a scale, a steel rod 6 passes through a steel rod positioning hole reserved in the steel member assembly and is screwed tightly to form a complete bridge upper structure box girder bracket support replacing device, and if the steel rod is far away from the outer edge of the box girder bracket member, a cushion block can be filled at the positions of the steel rod and the support to facilitate the installation of the steel rod.

And 2, measuring scale reading on a handle, and taking out the old support outwards through the handle after a jack arranged at the bottom of the box girder jacks up the bracket 8 on the box girder.

And 3, placing the new support in the box girder bracket support replacing device, installing the new support through a handle, observing a scale at the handle in the placing process, enabling the new support to be accurately placed at the original support position, and taking out the two steel members I2 after the steel rod 7 is removed.

Claims

1. The utility model provides a bridge superstructure case roof beam bracket support change device which characterized in that: comprises a pair of steel structure components, wherein the two steel structure components are connected through a steel rod (6);

the structure of each steel structure assembly comprises a first steel member (2) and a second steel member (3);

the structure of the first steel member (2) is a rectangular frame with a top surface and a side surface which are open, two rows of positioning holes are uniformly distributed on one side surface, a handle (5) is fixedly arranged on one small-area surface of the rectangular frame, and one end of the side surface which is open extends outwards;

the structure of the steel member II (3) is an L-shaped plate, a U-shaped groove is formed in the long side end portion of the L-shaped plate, a bolt (4) is arranged in the U-shaped groove, and the steel member I (2) and the steel member II (3) are connected into a whole through the bolt (4).

2. The bridge superstructure box girder corbel support exchange device of claim 1, wherein: the steel bars (6) are provided with 2, the two ends of each steel bar (6) are respectively provided with a nut (7), the two steel bars (6) are arranged up and down, and a pair of steel members (2) are connected through the nuts (7) and pass through the positioning holes.

3. A bridge superstructure box girder corbel support changing device according to claim 1 or 2, wherein: the handle (5) is a handle with a staff gauge.