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Rigid combined steel bridge deck pavement structure

A technology of steel bridge deck and steel bridge deck, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of fatigue cracks, easy cracks, delamination, rutting, structural safety and durability hazards of steel bridge decks. , to achieve the effect of improving fatigue problems, improving structural fatigue, and improving overall stiffness

Pending Publication Date: 2016-08-03
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of traffic volume and the increasing overload, the traditional asphalt concrete and other flexible pavements on steel bridges are prone to cracks, delamination, rutting and other diseases after 3 to 5 years of use; Fatigue cracks occur on the steel deck itself, which is harmful to the safety and durability of the structure

Method used

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  • Rigid combined steel bridge deck pavement structure
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 , figure 2 As shown, the present invention provides a rigid composite steel bridge deck pavement structure, which mainly includes a high-strength and toughness concrete pavement layer 1 and an orthotropic steel bridge deck 2 .

[0019] Wherein, the high-strength and toughness concrete pavement 1 and the orthotropic steel bridge deck 2 are combined by epoxy adhesive 3 and / or shear connectors 4 into a whole to bear force together. The thickness of the high-strength and toughness concrete pavement layer 1 ranges from 5 to 10 cm. The high-strength and toughness concrete used is conventionally maintained on-site low-shrinkage concrete, which has high crack resistance, is convenient for construction, and has low maintenance costs. The high-strength and toughness concrete is steel fiber concrete, and steel fibers are evenly distribut...

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Abstract

The invention provides a rigid combined steel bridge deck pavement structure which comprises a high-strength high-toughness concrete pavement layer and orthotropic steel bridge deck slabs. The high-strength high-toughness concrete pavement layer and the orthotropic steel bridge deck slabs are combined to form a whole for co-stressing by adopting an epoxy binder or shear connecting parts, or by simultaneously adopting the epoxy binder and the shear connecting parts. The rigid combined steel bridge deck pavement structure reasonably designed and construed meticulously has higher rigidity and strength and good durability and anti-fatigue performance and can replace pavement of transitional asphalt concrete and other flexible materials and improve the fatigue problem of steel beams.

Description

technical field [0001] The invention relates to the technical field of steel bridge deck pavement, in particular to a steel bridge deck pavement structure mainly used for deck design of new steel bridges or bridge deck pavement repair of existing steel bridges. Background technique [0002] With the continuous increase of traffic volume and the increasing overload, the traditional asphalt concrete and other flexible pavements on steel bridges are prone to cracks, delamination, rutting and other diseases after 3 to 5 years of use; Fatigue cracks occur on the steel deck itself, which is harmful to the safety and durability of the structure. A large number of long-span steel girder bridges have been built in my country in the past 30 years, and a large number of bridge deck pavement damages and steel deck fatigue problems have occurred, especially the main girders of self-anchored suspension bridges, cable-stayed bridges, etc. difficulty. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): E01D19/08
CPCE01D19/083
Inventor 方亚非王倩邵长宇张剑英张春雷颜海陈亮
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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