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High-performance steel bridge deck structure

A steel bridge deck, high-performance technology, used in bridges, bridge parts, bridge materials, etc., can solve problems such as weak lateral stiffness, reduce fatigue stress, improve structural properties, and reduce maintenance costs.

Inactive Publication Date: 2018-06-22
长沙慧桥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the bottom of the orthotropic steel deck, there are multiple stiffeners arranged longitudinally along the bridge to increase the longitudinal stiffness of the orthotropic steel deck, but its transverse stiffness is weak

Method used

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  • High-performance steel bridge deck structure
  • High-performance steel bridge deck structure
  • High-performance steel bridge deck structure

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] Such as Figure 1-Figure 5 As shown, the specific structure of the present invention is as follows: comprising a bridge deck surface layer 1 on the top layer, a grid layer 20 in the middle, and an orthotropic steel bridge deck 3 on the bottom layer, and the grid layer 20 is composed of partitions 21 Composed cell 2 and filler 4 filled in the cell 2. The bridge surface layer 1 is asphalt concrete, the partition plate 21 is metal material, and the filling material 4 is active powder concrete. Asphalt concrete and reactive powder concrete can bond better, which improves the problem of insufficient bonding adhesion between asphalt concrete bridge deck surface and orthotropic steel bridge deck.

[0034] The bridge deck surface layer 1 is the bridge deck pavement layer, which generally includes a waterproof layer, an adhesive layer, a wear layer and the like. The orthotropic steel bridge deck 3 refers to a traditional orthotropic steel bridge deck, which is composed of a st...

Embodiment approach 2

[0040] Such as Image 6 As shown, the difference between this embodiment and Embodiment 1 is that the cell 2 is hexagonal in plan view.

[0041] Beneficial effects of the present invention:

[0042] 1. The traditional orthotropic steel deck structure is improved, and the newly added grid layer improves the rigidity and strength of the steel deck and reduces the risk of fatigue damage of the steel deck. After the bridge is completed, only the surface of the bridge deck needs to be repaired regularly, and other parts of the bridge deck generally do not need to be maintained, thus reducing the maintenance cost of the steel bridge deck.

[0043] 2. The newly added grid layer can assist the load bearing of the orthotropic steel bridge deck, can effectively improve the stiffness and strength of the bridge deck, significantly reduce the fatigue stress of the steel deck, prolong the service life of the orthotropic steel bridge deck, and significantly improve the strength of the steel...

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Abstract

The invention discloses a high-performance steel bridge deck structure. The high-performance steel bridge deck structure is characterized in that a grating layer filled with fillers is arranged between a conventional bridge deck surface layer and an orthotropic steel bridge deck slab additionally. The grating layer comprises cases and the fillers in the cases. The cases are formed by separation ofseparation plates. Different types of grating layers can be selected flexibly to meet rigidity and strength requirements of the bridge deck structure design. The high-performance steel bridge deck structure has the advantages that the problems of proneness to fatigue rupture and poor adhesion between bridge deck surface layers and orthotropic steel bridge deck slabs of conventional steel bridge deck structures are solved effectively, and the high-performance steel bridge deck structure can be widely applied to construction, maintenance and reinforcement of various steel bridge decks.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a high-performance steel bridge deck structure. Background technique [0002] In recent decades, the number of newly built steel bridges has been increasing, and the steel bridge decks mostly adopt traditional orthotropic steel bridge decks. At the bottom of the orthotropic steel deck, there are multiple stiffeners arranged longitudinally along the bridge to increase the longitudinal stiffness of the orthotropic steel deck, but its transverse stiffness is weak. Under the repeated action of traffic loads, the bridge deck is repeatedly subjected to bending deformation, and stress concentration occurs repeatedly at the welding points of the orthotropic steel bridge deck and stiffeners, which makes this part prone to fatigue failure. This has become a technical problem for today's steel bridge deck structures. Contents of the invention [0003] The purpose of the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D101/30
CPCE01D19/125E01D2101/30
Inventor 徐昭陵陆尚武方志黄振宇张贵明陈国平谢立新刘建华谢鸿贺宁季小勇刘山建
Owner 长沙慧桥科技有限公司
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