CN214530209U

CN214530209U - Bridge deck plate joint plate assembling and positioning device for chord member of steel truss girder bridge

Info

Publication number: CN214530209U
Application number: CN202023051491.2U
Authority: CN
Inventors: 杨立群; 苏甜; 赵悦
Original assignee: China Railway Shanhaiguan Bridge Group Co Ltd
Current assignee: China Railway Shanhaiguan Bridge Group Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-10-29
Anticipated expiration: 2030-12-17

Abstract

The utility model provides a joint plate assembling and positioning device for a bridge deck plate of a chord member of a steel truss bridge, which comprises a supporting seat, a connecting plate vertically fixed on the supporting seat and a supporting plate fixedly connected with the connecting plate; the bottom of the supporting plate is fixed on the connecting plate, and the top of the supporting plate is provided with a slope surface with the same gradient as that of the bridge deck joint plate; during operation, the assembling and positioning device is placed on one side of the rod piece in a fitting mode, and the height of the assembling and positioning device on one side of the rod piece in the fitting mode is different from the height of the rod piece by the thickness of the bridge deck joint plate. The utility model ensures the cross slope gradient and the integral flatness of the bridge deck joint plate, greatly improves the assembly positioning precision of the bridge deck joint plate, reduces the error caused by manual assembly, and simultaneously protects the parent metal of the member riser from being damaged; after the bridge deck joint plate is welded, the assembling and positioning device can be moved out and then used for subsequent assembling of the bridge deck joint plate, so that the assembling progress is accelerated while materials are saved and the installation precision is guaranteed.

Description

Bridge deck plate joint plate assembling and positioning device for chord member of steel truss girder bridge

Technical Field

The utility model belongs to the technical field of the decking equipment technique and specifically relates to a steel truss bridge chord member decking joint plate equipment positioner.

Background

In the prior art, a steel truss girder bridge chord member and a steel box girder are connected in a bolt welding mode, a bridge deck plate connector plate is arranged on one side of the chord member and is consistent with the gradient of a 2% cross slope of the top of the steel box girder, and a chord web plate connector plate is connected with a web plate of the steel box girder through bolts. When the bridge deck plate joint is installed on one side of the rod piece, the gradient of the 2% cross slope is difficult to control, and if the installation positioning precision is not controlled in advance, the web plate joint plate cannot be accurately installed, and the bridge deck plate joint cannot be smoothly butted with the steel box girder.

The existing treatment mode is that a process plate is used for positioning below a bridge deck, the process plate is cut after butt joint is completed, the cut process plate can only be scrapped, and a bridge deck joint plate and a rod piece vertical plate need to be polished to be flat. During the process of cutting off the process plate, the base material can be damaged by carelessness. In summary, the prior art processes waste material, increase assembly costs, and may reduce the quality of the finished product.

SUMMERY OF THE UTILITY MODEL

To the technical problem that exists among the current steel truss bridge chord member and the steel box girder butt joint process, the utility model provides a steel truss bridge chord member decking joint plate equipment positioner.

A bridge deck plate joint plate assembling and positioning device for a chord member of a steel truss bridge is characterized in that the assembling and positioning device is arranged at equal intervals by being attached with rod pieces and comprises a supporting seat, a connecting plate vertically fixed on the supporting seat and a supporting plate fixedly connected with the connecting plate; the bottom of the supporting plate is fixed on the connecting plate, and the top of the supporting plate is provided with a slope surface with the same gradient as that of the bridge deck joint plate; during operation, the assembling and positioning device is placed on one side of the rod piece in a fitting mode, and the height of the assembling and positioning device on one side of the rod piece in the fitting mode is different from the height of the rod piece by the thickness of a bridge deck joint plate.

Furthermore, the supporting plate is vertically fixed on the connecting plate, and the supporting plate is perpendicular to the rod piece during operation.

Furthermore, the support plate and the connecting plate are detachably and fixedly connected through pins and fastening bolts.

Furthermore, the supporting seat is composed of an upper horizontal plate, a lower horizontal plate and H-shaped steel fixed between the upper horizontal plate and the lower horizontal plate.

The utility model ensures the cross slope gradient and the integral flatness of the bridge deck joint plate, greatly improves the assembly positioning precision of the bridge deck joint plate, reduces the error caused by manual assembly, and simultaneously protects the parent metal of the member riser from being damaged; the supporting plate which is detachably assembled is adopted, so that the reutilization of the tool is greatly improved compared with the process plate for installation; after the bridge deck joint plate is welded, the assembling and positioning device can be moved out and then used for subsequent assembling of the bridge deck joint plate, so that the assembling progress is accelerated while materials are saved and the installation precision is guaranteed.

Drawings

FIG. 1 is a schematic view of an assembled positioning device in use;

FIG. 2 is a side view of the positioning device in assembly;

FIG. 3 is a front view of the positioning device in assembly;

fig. 4 is a schematic view of the assembly positioning device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example 1

The utility model provides a steel truss bridge chord member decking joint plate equipment positioner, equipment positioner laminating member equidistance is placed, as shown in figure 1.

The assembling and positioning device comprises a supporting seat, a connecting plate 3 vertically fixed on the supporting seat and a supporting plate 4 fixedly connected with the connecting plate, as shown in fig. 2; the bottom of the supporting plate 4 is fixed on the connecting plate 3, and the top of the supporting plate is provided with a slope surface with the same gradient as that of the bridge deck joint plate, as shown in figure 3.

During operation, the assembling and positioning device is placed on one side of the rod piece, and the height of the assembling and positioning device, which is attached to the rod piece, is different from the height of the rod piece by the thickness of the bridge deck joint plate, namely, the bridge deck joint plate is just as high as the rod piece after being placed on the supporting plate of the assembling and positioning device, as shown in fig. 4.

The support plate may be in a nearly horizontal attitude, but such an arrangement of the support plate is disadvantageous for the stability of the assembled positioning device. For this purpose, in the present embodiment, the support plate 4 is fixed vertically to the connecting plate 3, and in operation, it is perpendicular to the bars, see fig. 4.

Because different rod piece heights are different, the support plate and the connecting plate are detachably and fixedly connected through the pins and the fastening bolts, so that the support plates with different heights can be replaced according to the rod piece heights, the reusability of the support seat and the connecting plate is improved, and the material cost is greatly saved.

The supporting seat is composed of an upper horizontal plate 2, a lower horizontal plate 2 and H-shaped steel 1 fixed between the upper horizontal plate and the lower horizontal plate. The horizontal plate and the H-shaped steel are the most common sectional materials for steel structure bridges, so that materials are convenient to obtain, and the stability of the support seat formed by splicing is good.

The assembling and positioning method for the joint plate of the bridge deck plate of the chord member of the steel truss girder bridge based on the assembling and positioning device comprises the following steps:

1. placing the chord member and a plurality of assembling and positioning devices on a special platform or an assembling jig;

2. attaching the assembling and positioning device to one side of the chord member;

3. placing the bridge deck joint plate on an assembling and positioning device, and fixing the bridge deck joint plate and the supporting plate in a spot welding manner after positioning;

4. and welding the main welding seam of the bridge deck joint plate and the rod piece.

5. And after the welding is finished, removing the assembling and positioning device.

Finally, it should also be noted that the above list is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. The assembling and positioning device for the bridge deck joint plates of the chord members of the steel truss bridge is characterized in that the assembling and positioning device is attached to rod members and is placed at equal intervals and comprises a supporting seat, a connecting plate vertically fixed on the supporting seat and a supporting plate fixedly connected with the connecting plate; the bottom of the supporting plate is fixed on the connecting plate, and the top of the supporting plate is provided with a slope surface with the same gradient as that of the bridge deck joint plate; during operation, the assembling and positioning device is placed on one side of the rod piece in a fitting mode, and the height of the assembling and positioning device on one side of the rod piece in the fitting mode is different from the height of the rod piece by the thickness of a bridge deck joint plate.

2. The device of claim 1, wherein the support plate is vertically fixed to the connecting plate, and is perpendicular to the rods during operation.

3. The device for assembling and positioning the joint plate of the bridge deck of the chord member of the steel truss bridge according to claim 2, wherein the support plate is detachably and fixedly connected with the connecting plate through a pin and a fastening bolt.

4. The device for assembling and positioning the joint plate of the bridge deck of the steel truss bridge chord member according to any one of claims 1-3, wherein the supporting seat is composed of an upper horizontal plate, a lower horizontal plate and H-shaped steel fixed between the upper horizontal plate and the lower horizontal plate.