CN202401393U

CN202401393U - Composite bridge floor

Info

Publication number: CN202401393U
Application number: CN201120539683XU
Authority: CN
Inventors: 刘建成; 熊建武; 林铸明; 孙建群; 程营; 徐进; 周自文; 况祺; 孙永刚; 白斌胜; 金沛之
Original assignee: 63983 Troops of PLA
Current assignee: 63983 Troops of PLA
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-08-29
Anticipated expiration: 2021-12-21

Abstract

The utility model relates to a composite bridge floor, which belongs to the field of traffic facilities and comprises an upper bridge floor layer and a lower bridge floor layer, wherein the upper bridge floor layer and the lower bridge floor layer are made by a carbon fiber composite material, a first light wooden core material layer and a second light wooden core material layer are arranged between the upper bridge floor layer and the lower bridge floor layer, a bonding layer is arranged between a first wooden core material layer and a second wood core material layer, the bonding layer is formed by carbon fiber and resin, and a nonmetallic pin is arranged between a main beam and a bridge floor. According to the utility model, by adopting the composite material and two layers of wooden core plate layers, the weight of a bridge girder is greatly reduced under the condition that the bearing requirements are satisfied.

Description

A kind of composite material bridge floor

Technical field

The utility model relates to a kind of motor-driven bridge, especially a kind of bridge floor that can motor-driven bridge.

Background technology

Motor-driven bridge is widely used in action fields such as military affairs, rescue and relief work, and traditional motor-driven bridge adopts high strength steel or middle high-strength aluminum alloy as structural meterials usually, and bridge floor also generally is welded by above-mentioned material.This bridge not only weight is bigger, and manufacturing process requirement is higher, the structure easy deformation.In order to alleviate the weight of bridge, the bridge that also has adopts composite material, waits like glass fiber reinforced plastic, carbon fiber and makes bridge floor, and adopting upper and lower bridge floor layer usually is composite material, and the intermediate layer is one deck cork wood sandwich layer.Mechanical connection manner through bolt or rivet and so on is connected with the girder of bridge then.Because the thickness of light wood core is limited, be difficult to bear the current of big load vehicle, bolt and rivet also have weakening effect to the stress performance of composite material bridge floor simultaneously.

Summary of the invention

The technical problem that the utility model will solve provides a kind of composite material bridge floor, and this bridge floor can bear bigger load, can guarantee the current of equipments such as heavy vehicle and engineering machinery.

In order to solve the problems of the technologies described above; The utility model comprises girder; Be provided with bridge floor layer and following bridge floor layer above the girder; Last bridge floor layer is processed by carbon fibre composite with following bridge floor layer, and the first cork wood core layer and the second cork wood core layer are arranged between last bridge floor layer and following bridge floor layer, between the first cork wood core layer and the second cork wood core layer carbon fiber resin composite material tack coat is arranged.

Also be provided with non-metallic pin between said bridge floor and the girder, non-metallic pin is vertical with bridge floor and run through the flange of bridge floor and girder web.

The utility model has alleviated the weight of bridge owing to adopt carbon fibre composite and cork wood core layer, is convenient to motor-driven and transportation, owing to adopted two-layer cork wood core layer, has improved the rigidity and the supporting capacity of bridge construction simultaneously.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

The specific embodiment

Like accompanying drawing 1; The utility model comprises girder 1; Be provided with bridge floor layer 2 and following bridge floor layer 3 above the girder; Last bridge floor layer 2 and following bridge floor layer 3 are processed by carbon fibre composite, carbon fiber resin composite material tack coat 6 are arranged having between last bridge floor layer 2 and the following bridge floor layer 3 between the first cork wood core layer 4 and the second cork wood core layer, 5, the first cork wood core layer 4 and the second cork wood core layer 5.

In order to improve the degree of being connected firmly between bridge floor and the girder, and reduce the destruction of connector to the bridge floor mechanical property as far as possible, be provided with non-metallic pin 7 between this bridge floor and the girder, non-metallic pin is vertical with bridge floor and run through the flange of bridge floor and girder web.The relative conventional steel structural bridge of the utility model, under same bearer ability situation, can weight reduction about 30%.

Claims

1. composite material bridge floor; Comprise girder (1); Be provided with bridge floor layer (2) and following bridge floor layer (3) above the girder (1), it is characterized in that, last bridge floor layer (2) and following bridge floor layer (3) are processed by carbon fibre composite; The first cork wood core layer (4) and the second cork wood core layer (5) are arranged between last bridge floor layer (2) and following bridge floor layer (3), between the first cork wood core layer (4) and the second cork wood core layer (5) carbon fiber resin composite material tack coat (6) is arranged.

2. composite material bridge floor according to claim 1 is characterized in that, is provided with non-metallic pin (7) between this bridge floor and the girder, and non-metallic pin (7) is vertical with bridge floor and run through the flange of bridge floor and girder web.