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A sealing protection structure of a highway bridge telescopic device

A technology of telescopic devices and protective structures, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of increased safety hazards for maintenance workers, open circuit construction, uneven road surface temperature, etc., so as to reduce daily maintenance and cleaning work, improve damping and reduce The vibration function and the effect of reducing the impact of car jumping

Active Publication Date: 2016-06-15
AVIC BEIJING INST OF AERONAUTICAL MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing road bridge expansion devices are modular road bridge expansion devices. The sealing rubber belt of the expansion device is easy to age and needs to be replaced frequently. The deformation of different parts is also different, which brings many difficulties to the replacement of the sealing rubber belt, the replacement period is long, and the circuit breaker construction is required
Secondly, the daily maintenance of special-shaped steel expansion devices requires frequent cleaning of debris accumulated between the joints, which not only increases the maintenance workload, but also increases the safety hazards of maintenance workers

Method used

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  • A sealing protection structure of a highway bridge telescopic device
  • A sealing protection structure of a highway bridge telescopic device
  • A sealing protection structure of a highway bridge telescopic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 , Special-shaped steel 2 adopts "F" steel, and the expansion device composed of special-shaped steels 2 and 5 and sealing rubber band 3 is filled with elastic filling material 4, and special-shaped steels 2 and 5 are embedded in the top of bridge beams 1 and 6, in the beam body Expansion joints are formed on 1 and 6, the sealing rubber band 3 is inserted into the profiled steel 2 and 5 on both sides, the upper part of the sealing rubber band 3 forms a V-shaped space, and the elastic filling material 4 is placed in the V-shaped space formed on the upper part of the sealing rubber band 3 , Is flush with the top surfaces of the bridge beam bodies 1 and 6, and the elastic filling material 4 is bonded with the special-shaped steel 2 and 5.

[0017] The elastic filling material 4 is polysulfide sealant, which is filled into the expansion joint and is naturally vulcanized into an elastomer.

Embodiment 2

[0019] The following describes the present invention in detail with reference to the embodiments schematically given in the drawings, in which:

[0020] Such as figure 2 , Special-shaped steel 2 is made of "E"-shaped steel, and the expansion device composed of special-shaped steels 2 and 5 and sealing rubber band 3 is filled with elastic filling material 4, and special-shaped steels 2 and 5 are embedded in the top of bridge beams 1 and 6. Expansion joints are formed on 1 and 6, the sealing rubber band 3 is inserted into the profiled steel 2 and 5 on both sides, the upper part of the sealing rubber band 3 forms a V-shaped space, and the elastic filling material 4 is placed in the V-shaped space formed on the upper part of the sealing rubber band 3 , Is flush with the top surfaces of the bridge beam bodies 1 and 6, and the elastic filling material 4 is bonded with the special-shaped steel 2 and 5.

[0021] The elastic filling material 4 is a silicone sealant, which is filled into t...

Embodiment 3

[0023] The following describes the present invention in detail with reference to the embodiments schematically given in the drawings, in which:

[0024] Such as image 3 , Special-shaped steel 2 adopts "C" steel, and the expansion device composed of special-shaped steels 2 and 5 and sealing rubber band 3 is filled with elastic filling material 4, and special-shaped steels 2 and 5 are embedded in the top of bridge beams 1 and 6, in the beam body Expansion joints are formed on 1 and 6, the sealing rubber band 3 is inserted into the profiled steel 2 and 5 on both sides, the upper part of the sealing rubber band 3 forms a V-shaped space, and the elastic filling material 4 is placed in the V-shaped space formed on the upper part of the sealing rubber band 3 , Is flush with the top surfaces of the bridge beam bodies 1 and 6, and the elastic filling material 4 is bonded with the special-shaped steel 2 and 5.

[0025] The elastic filling material 4 is a polyurethane sealant, which is fille...

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Abstract

The invention belongs to the technical field of bridge expansion devices, and relates to a sealing protection structure for a road bridge expansion device. The expansion device consisting of deformed steel and a sealing rubber belt is full of an elastic filling material; the deformed steel is embedded into the upper top of a bridge beam body; an expansion joint is formed on the beam body; the sealing rubber belt is clamped on the deformed steel on both sides; a V-shaped space is formed on the upper part of the sealing rubber belt; the elastic filling material is placed into the V-shaped space formed on the upper part of the sealing rubber belt, and is flush with the upper top surface of the bridge beam body; the elastic filling material is bonded together with the deformed steel; the filling material is a high polymer material, and is vulcanized into an elastomer in a natural state. Due to the adoption of the sealing protection structure for the road bridge expansion device, the service life of the road bridge expansion device is prolonged, the maintenance difficulty of the road bridge expansion device is lowered, the construction period is shortened, the road smoothness is improved, the influence of jumping is lowered, and the service life of a bridge is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of bridge expansion devices, and relates to a road bridge expansion device sealing protection structure, and is particularly suitable for the maintenance of new modeling digital road bridge expansion devices and road bridge expansion devices with damaged sealing rubber belts. Background technique [0002] Most of the existing road bridge expansion devices are modular road bridge expansion devices. The sealing rubber belt of the expansion device is easy to age and often needs to be replaced. However, due to the difference in traffic volume and road surface load, the road surface temperature is uneven, and the expansion device The amount of deformation of different parts is also different, which brings a lot of difficulties to the replacement of the sealing rubber belt, the replacement period is long, and the construction of the circuit is required. Secondly, the daily maintenance projects of special-shaped steel e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/06
Inventor 蔺艳琴王君瑾谭华青汤怀国高利杰王子涵
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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