Steel-wood combined bridge deck structure and paving method thereof

A steel-wood combination and steel bridge deck technology, applied in bridges, bridge parts, bridge construction, etc., to achieve the effects of preventing detachment between layers, reducing fatigue damage, and reducing shear deformation

Active Publication Date: 2022-02-01
中铁建大桥工程局集团南方工程有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a steel-wood composite bridge deck structure and its paving method, which can give full play to the performance advantages of steel and wood, so as to reduce the fatigue damage problem of the steel bridge deck in the prior art and prolong the service life of the bridge deck

Method used

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  • Steel-wood combined bridge deck structure and paving method thereof
  • Steel-wood combined bridge deck structure and paving method thereof
  • Steel-wood combined bridge deck structure and paving method thereof

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Embodiment Construction

[0024] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 As shown, a steel-wood composite bridge deck structure includes a steel bridge deck 3, and several U-ribs 4 are uniformly fixed on the bottom of the steel bridge deck 3, and adjacent U-ribs 4 are arranged at intervals, and the steel bridge deck The upper and lower surfaces of 3 are evenly coated with inorganic zinc-rich primer, and several wooden laths 1 are evenly distributed and fixed on the upper surface of the steel bridge deck 3. , the preferred treatment standard LY / T3228-2020 "Pressure anti-corrosion treatment of glued wood". Adjacent wooden laths 1 are arranged at a certain distance, and the distance between two adjacent wooden laths 1 is 500±10mm. The plank 1 is cross-laminated timber (CLT), the thickness of the plank 1 is 50±2mm, and the width is 600-1200mm, the bonding of the plank 1 and the asphalt concrete 2 can be fully obtained by the design of such size and spacing Assur...

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Abstract

The invention belongs to the technical field of bridge engineering, and relates to a steel-wood combined bridge deck structure and a paving method thereof. The steel-wood combined bridge deck structure comprises a steel bridge deck slab, a plurality of U-shaped ribs are evenly distributed and fixed to the bottom end of the steel bridge deck slab, the adjacent U-shaped ribs are arranged at intervals, and a plurality of wood laths are further evenly distributed and fixed to the upper surface of the steel bridge deck slab; the adjacent wood laths are arranged at intervals, and asphalt concrete is laid between the adjacent wood laths and on the upper sides of the adjacent wood laths. Through the structural design, the bridge deck has a certain buffering effect, fatigue damage to the steel bridge deck is reduced, and the asphalt concrete is fixed through the wood laths, so that interlayer separation caused by insufficient interlayer bonding force can be prevented; as the wood laths are relatively flexible materials, a part of shear deformation can be absorbed, and the shear deformation of the bridge deck caused by vehicle braking can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and relates to a steel-wood composite bridge deck structure and a paving method thereof. Background technique [0002] Due to the advantages of strong bearing capacity and short construction period, steel bridge decks are widely used in large and medium-span bridges. However, with the construction and use of a large number of steel structure bridges, it is not uncommon for the steel deck pavement system to be damaged within the service life, such as cracks, wave movement, local swelling (asphalt bag, high temperature air bag), rutting, etc. . These problems not only have a great impact on driving comfort, but also easily cause traffic accidents, resulting in huge social and economic losses. Due to the small out-of-plane rigidity of the steel bridge deck, the deformation of the bridge structure and temperature changes, vehicle loads, earthquakes, etc. The deformation and stress under ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01C7/32
CPCE01D19/12E01C7/32
Inventor 刘朋陈艺旋赵健安路明任延龙王元清
Owner 中铁建大桥工程局集团南方工程有限公司
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