CN210031455U

CN210031455U - Small box girder bridge floor connecting structure

Info

Publication number: CN210031455U
Application number: CN201821933219.7U
Authority: CN
Inventors: 蒋垠茏
Original assignee: SHANGHAI MUNICIPAL TRANSPORTATION DESIGN INSTITUTE Co Ltd
Current assignee: SHANGHAI MUNICIPAL TRANSPORTATION DESIGN INSTITUTE Co Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-02-07
Anticipated expiration: 2028-11-22

Abstract

The utility model discloses a little case roof beam bridge floor connection structure, include: the small box girders are erected into a bridge, and the upper end surfaces of the small box girders form a bridge deck; each rubber sheet is laid on a structural seam between every two small box girders; the steel plates are provided with the studs, and each steel plate is arranged on one rubber sheet; the reinforced concrete layer is laid on the bridge floor and is positioned on the steel plate; the asphalt concrete layer is laid on the reinforced concrete layer. The utility model discloses a construction method makes little case roof beam bridge floor pavement can be continuous, has improved the continuity of bridge floor structure to construction speed has been accelerated.

Description

Small box girder bridge floor connecting structure

Technical Field

The utility model relates to a technical field of little case girder construction especially relates to a little case girder bridge floor connection structure's technical field.

Background

The small box girder is one of the middle girders in bridge engineering, the inner part of the small box girder is hollow, and flanges are arranged on two sides of the upper part of the small box girder and are similar to boxes, so that the small box girder is named. The small box girder has better structural integrity and convenient erection, and is widely applied to bridge engineering at present. However, in the prior art, the small box girder is usually a simply supported girder, that is, the small box girder and the deck pavement are both disconnected at the capping girder and are connected by adopting an expansion joint. The structural form has great influence on the travelling comfort and the continuity of the bridge deck structure and certain influence on the aesthetic property of the bridge

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model aims at providing a little case roof beam bridge floor connection structure can improve the continuity of current bridge floor poor, promotes the construction speed.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a small box girder deck connection structure, comprising:

the small box girders are erected into a bridge, and the upper end surfaces of the small box girders form a bridge deck;

the rubber sheet is laid on the bridge floor and covers a plurality of structural seams among a plurality of small box girders;

the steel plates are arranged on the rubber sheets, and each steel plate is positioned on one structural seam;

the reinforced concrete layer is laid on the bridge floor and is positioned on the steel plates;

and the asphalt concrete layer is laid on the reinforced concrete layer.

In the above small box girder bridge deck connection structure, the reinforced concrete layer is provided with a plurality of pairs of grooves, and each pair of grooves is arranged on the upper surface of the reinforced concrete layer along the width direction of the bridge deck; and each pair of said grooves is located above one of said steel plates.

Above-mentioned little box girder bridge floor connection structure, wherein, be provided with the sealant in the recess.

Above-mentioned little box girder bridge floor connection structure, wherein, each weld on the steel sheet and have a plurality of welding nails to a plurality of welding nails is rectangle array and sets up in one on the steel sheet.

With above technical scheme, can reach following beneficial effect:

the utility model discloses a construction method makes little case roof beam bridge floor pavement can be continuous, has improved the continuity of bridge floor structure to construction speed has been accelerated.

Drawings

FIG. 1 is a schematic view of a small box girder bridge deck connection structure of the present invention;

fig. 2 is an enlarged view of a of fig. 1.

In the drawings: 1. a small box girder; 11. structural sewing; 12. a bridge deck; 2. a rubber sheet; 3. a steel plate; 31. welding nails; 4. a reinforced concrete layer; 41. a groove; 5. an asphalt concrete layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Fig. 1 is a schematic view of a small box girder bridge floor connection structure of the utility model. Fig. 2 is an enlarged view of a of fig. 1.

Referring to fig. 1 to 2, in a preferred embodiment, a box girder deck connection structure includes:

the small box girders 1 are erected into a bridge, the upper end faces of the small box girders 1 form a bridge deck 12, and a structural joint 11 is arranged between every two small box girders 1.

And the rubber sheets 2 are paved on the bridge deck 12, and the rubber sheets 2 cover the structural seams 11.

A plurality of steel sheets 3 with studs, a plurality of steel sheets 3 are arranged on the rubber sheet 2, and each steel sheet is positioned on a structural seam 11.

And the reinforced concrete layer 4 is paved on the bridge deck 12, and the reinforced concrete layer 4 is positioned on the plurality of steel plates 3.

And the asphalt concrete layer 5 is paved on the reinforced concrete layer 4.

The above is merely an example of the preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

Further, in a preferred embodiment, the reinforced concrete layer 4 is provided with a plurality of pairs of grooves 41, and each pair of grooves 41 is opened on the upper surface of the reinforced concrete layer 4 along the width direction of the bridge deck 12; and each pair of grooves 41 is located above a steel plate 3.

Further, in a preferred embodiment, a sealing paste is disposed within the recess 41.

Further, in a preferred embodiment, a plurality of welding nails 31 are welded on each steel plate 3, and the welding nails 31 are arranged on one steel plate 3 in a rectangular array.

In addition to the above embodiments, the present invention further has the following working method:

step one, erecting a plurality of small box girders 1 to form a bridge.

And step two, arranging a rubber sheet 2 on a bridge deck 12 of the bridge, and covering a plurality of structural seams 11 by the rubber sheet 2.

And step three, arranging a plurality of steel plates 3 on the rubber sheet 2, and arranging each steel plate 3 above the structural joint 11.

Fourthly, a reinforced concrete layer 4 is laid on the bridge deck 12 of the bridge, and the reinforced concrete layer 4 is positioned above the steel plates 3;

and step five, paving an asphalt concrete layer 5 on the reinforced concrete layer 4.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides a little box girder bridge floor connection structure which characterized in that includes:

the rubber sheets are laid on the bridge deck and cover a plurality of structural seams among the small box girders;

and the asphalt concrete layer is laid on the reinforced concrete layer.

2. The small box girder bridge deck connection structure of claim 1, wherein the reinforced concrete layer is provided with a plurality of pairs of grooves, and each pair of grooves is arranged on the upper surface of the reinforced concrete layer along the width direction of the bridge deck; and each pair of said grooves is located above one of said steel plates.

3. The box girder deck connection structure of claim 2, wherein a sealant is provided in the groove.

4. The bridge deck connection structure of small box girders according to claim 1, wherein a plurality of welding nails are welded to each steel plate, and a plurality of welding nails are arranged on one steel plate in a rectangular array.