Steel bridge deck protecting device and production method thereof

A protection device and production method technology, applied in bridges, bridge parts, bridge construction and other directions, can solve the problems of delamination and slippage between bridge deck and asphalt concrete surface layer, poor durability of interlayer bonding, poor high temperature stability, etc. Achieve the effect of enhanced interlayer adhesion durability, reduced damage, and low surface tension

Inactive Publication Date: 2011-01-05
广州新粤交通技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Analyzing the use of asphalt pavement on steel bridges at home and abroad, it is found that poor high temperature stability and fatigue cracking are the main forms of damage to orthotropic steel bridge deck pavement, and the root cause of the damage lies in the tracking of the deformation of the asphalt concrete surface by the bridge deck. Insufficient adhesion, poor durability of bonding between layers, resulting in delamination and slippage of the bridge deck and asphalt concrete surface and damage

Method used

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  • Steel bridge deck protecting device and production method thereof
  • Steel bridge deck protecting device and production method thereof
  • Steel bridge deck protecting device and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, it is a longitudinal section schematic diagram of the structure of the steel bridge deck protection device of the present invention. The steel bridge deck protection device of the present invention includes the bottom layer arranged on the steel bridge deck, that is, the asphalt concrete surface layer 1 on the bridge deck 5, and also includes A layer of bonding transition layer 4 arranged between the bridge deck 5 and the asphalt concrete surface layer 1, the bonding transition layer 4 includes a graded crushed stone layer 3 mixed with epoxy resin and polyurethane A binder layer 2, the graded crushed stone layer 3 is arranged on the binder layer 2 and under the asphalt concrete surface layer 1 .

[0034] In this embodiment, the adhesive formed by compounding epoxy resin and polyurethane is purchased from U.S. dow chemical company, and its trade name is FLEXOGRID system, which can be Mark-166.2 (A component: B component=1: 1, dosage : 1.35 lit...

Embodiment 2

[0058] Other structures of the steel bridge deck protection device in this embodiment are the same as those in Embodiment 1, except that two bonding transition layers are arranged between the bridge deck and the asphalt concrete surface.

[0059] Its production method is all identical with embodiment 1 except repeating step (3) and step (4) after step (4).

[0060] The steel bridge deck protection structure of this embodiment also has extremely high guarantees for high temperature stability, fatigue crack resistance, followability to steel plate deformation, deformation characteristics, interlayer bonding, and a complete waterproof and drainage system. It is easy to maintain, and has the advantages of wear resistance, anti-skid, waterproof, good anti-aging performance, large deformation, small weight, long service life, and simple and convenient maintenance. The specific experimental results are omitted.

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Abstract

The invention discloses a steel bridge deck protecting device and a production method thereof. The protecting device comprises a bituminous concrete surface layer arranged above a deck slab of a steel bridge deck, and at least one bonding transitional layer arranged between the deck slab and the bituminous concrete surface layer, wherein the bonding transitional layer comprises a graded gravel layer and a bonding agent layer formed by compounding epoxy resin and polyurethane; and the graded gravel layer is arranged above the bonding agent layer and below the bituminous concrete surface layer. The protecting device of the invention integrally bonds the bituminous concrete surface layer and the deck slab so as to enhance the deck slab deformation following performance of the bituminous concrete surface layer, enhancing inter-layer bonding durability and reducing damages caused by delaminating and slippage between the bituminous concrete surface layer and the deck slab.

Description

technical field [0001] The invention belongs to the technical field of steel bridge deck design, construction, maintenance and repair, and in particular, the invention relates to a new steel bridge deck protection device and a production method thereof. Background technique [0002] Steel deck pavement is an important part of the bridge traffic system, and its quality directly affects the safety, comfort, bridge durability, investment benefits and social benefits of traffic. The emergence of orthotropic bridge deck system has greatly reduced the weight of the bridge, made the span of the bridge longer, and promoted the construction of super-long-span bridges. The steel deck pavement technology is accompanied by the construction of super-long-span bridges. And developed a special paving technology with high technical difficulty. Due to the small rigidity and large deformation of the orthotropic steel bridge deck system, the requirements for the steel deck pavement are very s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32E01D19/12
Inventor 刘先淼李向阳刘宜聪刘学
Owner 广州新粤交通技术有限公司
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