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Composite steel fiber-concrete steel bridge deck based on cohesive cotter groups

A technology of steel fiber concrete and steel bridge deck, which is applied to bridges, bridge parts, bridge construction, etc., to achieve the effects of improved mechanical performance, convenient maintenance, and convenient construction

Active Publication Date: 2017-10-10
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the steel fiber reinforced concrete composite steel bridge deck based on bonded stud group involved in the content of this application has not been found in the approved and accepted patents and domestic and foreign documents

Method used

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  • Composite steel fiber-concrete steel bridge deck based on cohesive cotter groups
  • Composite steel fiber-concrete steel bridge deck based on cohesive cotter groups
  • Composite steel fiber-concrete steel bridge deck based on cohesive cotter groups

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Effect test

Embodiment 1

[0040] exist figure 1 , 2 , 3, the present invention is based on the steel fiber concrete composite steel bridge deck of bonded stud group, has the following steps:

[0041] S1, the steel bridge deck cover plate 1 is cleaned and shot blasted with a high-pressure air gun;

[0042]S2. Bond the stud connection assembly 2 on the steel bridge deck cover plate 1; in this embodiment, epoxy resin glue is used to paste the stud connection assembly 2 on the steel bridge deck cover plate 1, and the epoxy resin glue The thickness is 2-4mm. Further, this embodiment uses Sika 30 to bond the stud connection components. In terms of strength, the bonded combination layer can not only meet the force requirements of the structure, but also has high wear resistance and vibration resistance; in terms of durability , the epoxy resin glue has no shrinkage after curing, has good temperature resistance, and has high creep resistance under long-term load; in terms of construction feasibility, the ep...

Embodiment 2

[0055] exist Figure 6 In the stud connection assembly 2 of this embodiment, two stud connectors 2-2 are vertically arranged on the bottom plate 2-1, and the distance between adjacent stud connectors 2-2 is 150 mm to 250 mm. All the other components and the connections of the components are the same as those in Embodiment 1.

Embodiment 3

[0057] exist Figure 7 Among them, the stud connection assembly 2 of this embodiment is vertically provided with four stud connectors 2-2 on the bottom plate 2-1, and the connecting line of the center lines of the four stud connectors 2-2 is a square. The distance between the adjacent peg connectors 2-2 is 150 mm to 250 mm, and the other components and their connection relationship are the same as those in Embodiment 1.

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Abstract

The invention provides a composite steel fiber-concrete steel bridge deck based on cohesive cotter groups. The preparation method comprises the following steps that 1, cleaning and shot blasting are conducted on the cover plate of the steel bridge deck by means of a high-pressure air gun; 2, cotter connecting components are arranged on the cover plate of the steel bridge deck in a bonding mode; 3, a fiber-concrete pavement layer is casted on the cover plate of the steel bridge deck with the cohesive cotter groups and the cotter connecting components in situ. By means of the composite steel fiber-concrete steel bridge deck based on the cohesive cotter groups, the structure stiffness can be improved, the stress amplitude of a fatigue detail place is reduced, and long service life design of an orthotropic steel bridge deck is achieved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and specifically relates to a steel fiber concrete composite steel bridge deck based on bonded stud groups. The method is mainly used to improve the fatigue performance of the steel bridge deck and improve the durability of the steel bridge deck pavement , Extend the service life of steel bridge deck pavement. Background technique [0002] The orthotropic steel bridge deck not only bears the direct action of the wheel load, but also participates in the joint stress as a part of the main girder, and is an important force-bearing component of the bridge structure. Orthotropic steel bridge decks are widely used in large and medium-span bridges and open bridges at home and abroad because of their light weight, large bearing capacity, fast construction speed, and beautiful structure. According to the traditional structural system analysis method, the steel box girder with orthotropic steel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12C04B28/04C04B111/27C04B111/20
CPCC04B28/04C04B2111/20C04B2111/2038C04B2111/27C04B2201/50C04B2201/52E01D19/125C04B18/146C04B14/06C04B14/48C04B2103/302C04B14/068
Inventor 段兰王春生王茜姚博张培杰奥利维张文婷杨少博
Owner CHANGAN UNIV
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