CN203546588U

CN203546588U - FES (FRP (Fiber Reinforced Polymer)-EBM (Epoxy Bond Metal)-SMA (Stone Matrix Asphalt)) steel bridge floor pavement structure

Info

Publication number: CN203546588U
Application number: CN201320654236.8U
Authority: CN
Inventors: 张锡祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-23
Filing date: 2013-10-23
Publication date: 2014-04-16
Anticipated expiration: 2023-10-23

Abstract

The utility model belongs to the technical field of road and bridge construction, and particularly discloses an FES (FRP (Fiber Reinforced Polymer)-EBM (Epoxy Bond Metal)-SMA (Stone Matrix Asphalt)) steel bridge floor pavement structure. An FRP pavement base layer, an EBM pavement transitional layer and an SMA pavement surface layer with a double-layer structure are arranged on a steel bridge surface plate from top to bottom sequentially. According to the pavement structure, on the basis that the advantages of high-temperature corrugation resistance, skid resistance, wear resistance and low construction cost of the SMA pavement surface layer are maintained and developed, the FRP pavement base layer is used for improving low-temperature bending resistance, long-acting water prevention and strong interface connection performance, thus, the pavement structure has the advantages that the structure form is more reasonable, the structure function is more complete, and the pavement structure has superior technological and economical competition advantages in comparison with conventional asphalt concrete pavement structures, such as a double-layer SMA pavement structure, a double-layer EA (Epoxy Asphalt) pavement structure, and a lower layer GA (Gussasphalt) and upper layer SMA pavement structure.

Description

FES bridge deck pavement structure

Technical field

The utility model belongs to road and bridge technical field of buildings, relate in particular to a kind of by fibre reinforced composites (Fiber Reinforced Polymer, FRP) mat formation basic unit, epoxy rubble (Epoxy Bond Metal, EBM) transition zone and stone mastic asphalt (the Stone Matrix Asphalt that mats formation, SMA) the FRP-EBM-SMA bridge deck pavement structure that combined facing layer forms of mating formation, referred to as FES bridge deck pavement structure.

Background technology

Double-deck SMA bridge deck pavement structure, introduction of foreign technology in domestic paving steel bridge deck engineering application the earliest with the most economical asphalt concrete pavement form of structure of construction costs, there is strong and excellent structure, the functional advantage of antiskid anti-wear performance of high temperature resistance rut ability, also exist anti-low-temperature bending ability weak with water resistance, the structure of interface shearing-resistance poor performance, function shortcoming.The fault of construction of this paving structure for a change, engineers from last century the nineties done so far a large amount of material modifications and the effort of structure optimization, but the birth defect because of material property produces little effect eventually, cause this paving structure formal cause to be queried and its engineering application is reduced gradually.

Summary of the invention

For above-mentioned the deficiencies in the prior art part, the utility model aims to provide a kind of form of structure more rationally and the more perfect FES bridge deck pavement structure of structure function, meeting under the prerequisite of paving steel bridge deck technical standard, comprehensive technology economic indicator is better than traditional double-deck SMA bridge deck pavement structure, also be better than double-deck epoxy asphalt concrete (Epoxy Asphalt Mixture, EA) paving structure and lower floor's pouring asphalt concrete (Gussasphalt, GA)+upper strata SMA combined type paving structure.

To achieve these goals, the utility model adopts following technical scheme: a kind of FES bridge deck pavement structure, is characterized in that: on steel bridge deck, be equipped with successively from bottom to up FRP basic unit, EBM transition zone and the double-deck SMA surface layer of mating formation of mating formation of mating formation.

" Material cladding " of the utility model application composite structure, " structure composite " thought, by the steel bridge deck at double-deck SMA bridge deck pavement structure and SMA, mat formation and between surface layer, increase one deck FRP basic unit and one deck EBM transition zone of mating formation of mating formation, the FRP of the usining long-acting water-proof topping of basic unit as steel bridge deck of mating formation, steel bridge deck and the SMA powerful bearing layer being connected of transition zone and interface that interlayer rigidity easy gradient changes of mating formation, the EBM of usining mats formation transition zone as FRP the mat formation structural transition layer that surface layer interface is connected and make the mat formation structural transition layer of surface layer interface structural reinforcing of SMA of basic unit and SMA of mating formation, thereby make each layer of paving structure can bring into play the length of its material property, bring the structural integrity of whole paving structure, the significantly raising of stability and durability.

Further, the FRP basic unit of mating formation, is three-dimensional glass cloth, two-dimentional glass fabric and the felt closely connected laminar composite deck that is adhered to steel bridge deck end face after modified epoxy dipping of laying from top to bottom; And form the rough surface with shearing tooth after three-dimensional glass cloth dipping modified epoxy.

Further, the EBM transition zone of mating formation, for taking shape in the mat formation epoxy macadam of rough surface of basic unit of FRP.

Useful effect structure of the present utility model:

1) this paving structure form is more reasonable

The form of structure that this paving structure changes along each stiffness layer easy gradient of pavement thickness direction, can alleviate mat formation high poor rigidity that between surface layer, material property great disparity is brought and material property of steel bridge deck and SMA and not mate the interface deformation causing and coordinate difficulty, reducing the two is the interface balance shear stress that meets deformation compatibility condition.This paving structure can make its structure stress more reasonable by means of the more reasonable of its form of structure.

The FRP of this paving structure basic unit of mating formation, by the two material, having the bonding of inter-molecular attraction with steel bridge deck is down connected, upper and SMA surface layer passes through the physical connection of shearing tooth rough surface, make this paving structure there is the ability of stronger interface shearing-resistance concatenation ability and constraint SMA surface layer in-plane deformation, thereby can improve from improving the structural integrity of paving structure the structure durability of paving structure.This paving structure can make its structure durability more guaranteed by means of the more reasonable of its form of structure.

2) this paving structure more perfect functions

The FRP of this paving structure basic unit of mating formation, the double long-acting structural waterproofing course of doing steel bridge deck and steel bridge deck and the SMA structural adhesive layer that surface layer interface is connected of mating formation, can eliminate traditional double-deck SMA, between double-deck EAHe lower floor GA+upper strata SMA paving structure and steel bridge deck, the interface " thin " that " functional waterproofing course and adhesive linkage " causes must be set, " weak " layer, make each layer of paving structure more can bring into play its material property strong point, SMA surface layer is kept and bring into play the anti-rut of its high temperature and antiskid wear-resisting, on the basis of the advantage of cost economic, utilize FRP basic unit to improve the low-temperature bending of this paving structure, long-acting water-proof, efficient interface concatenation ability, make the more perfect functions of whole paving structure, comprehensive technology economic indicator is better than traditional double-deck SMA, the double-deck EAHe GA+ of lower floor upper strata SMA paving structure.

This paving structure, not only FRP base material energy acid and alkali resistance, salt medium corrosion, in-30～70 ℃ of temperature ranges, mechanical properties of materials does not reduce, material aging life-span >=50 year, and through EBM mat formation transition zone structure conversion and make its structural integrity more excellent, bring this paving structure with respect to the progress of the matter of double-deck SMA, double-deck EAJi lower floor GA+upper strata SMA paving structure more perfect functions, make former double-deck SMA paving structure have more technology, economic competition advantage through the engineering application of the FES paving structure of this transformation generation.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical solution of the utility model, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.Obviously, the accompanying drawing in the following describes is only embodiment more of the present utility model.

Fig. 1 is FES bridge deck pavement structure cross-sectional configuration schematic diagram.

The specific embodiment

Below in conjunction with specific embodiment and accompanying drawing, further illustrate the utility model.

A FES bridge deck pavement structure is equipped with successively from bottom to up FRP(fibre reinforced composites on steel bridge deck 1) basic unit 2 of mating formation, EBM(epoxy rubble) mat formation transition zone 3 and the double-deck SMA surface layer 4 of mating formation.The described double-deck SMA surface layer 4 of mating formation, is connected to form by SMA mat formation surface course 42 and the modified emulsifying asphalt adhesive linkage 43 of lower surface layer 41, SMA of mating formation.

The described FRP basic unit 2 of mating formation is three-dimensional glass cloth, two-dimentional glass fabric and the felt closely connected laminar composite deck that is adhered to steel bridge deck end face after modified epoxy dipping of laying from top to bottom; And form the rough surface with shearing tooth after three-dimensional glass cloth dipping modified epoxy.It relies on modified epoxy to have with 1 of steel bridge deck bonding connection of brute force that intermolecular attraction realizes the two interface, and relies on the three-dimensional glass cloth dipping modified epoxy of FRP basic unit 2 end faces to form rough surface; Thereby be more conducive to mat formation being connected of surface layer 41 under transition zone 3 and SMA with EBM, the connection of each layer that make to mat formation is more firm.

The described EBM transition zone 3 of mating formation, for normal temperature wet moulding is in the mat formation epoxy macadam of rough surface of basic unit of FRP.It paves compacting in the mat formation HTHP effect of basic unit's 2 end faces of FRP by means of the SMA lower surface layer 41 of mating formation, and first makes EBM the mat formation coarse end face of three-dimensional of basic unit 2 of transition zone 3 and FRP of mating formation rely on material that the two matrix material is identical from being connected, to realize that its full interface is powerful to be connected; Next drive FRP mat formation the shearing tooth 21 of basic unit's 2 end faces jointly pierce SMA mat formation the interior certain depth of lower surface layer 41 realize three's material mutually biting connecions surface physics mixed and that mutually bond connect.

Finally it should be noted that, above embodiment is unrestricted its technical scheme for the technical solution of the utility model is described only.Those of ordinary skill in the art should be appreciated that those are modified to the technical solution of the utility model or are equal to and replaces and do not depart from the content of the technical program aim and scope, all should be encompassed in claim scope of the present utility model.

Claims

1. a FES bridge deck pavement structure, is characterized in that: on steel bridge deck, be equipped with successively from bottom to up FRP basic unit, EBM transition zone and the double-deck SMA surface layer of mating formation of mating formation of mating formation; The FRP basic unit of mating formation is three-dimensional glass cloth, two-dimentional glass fabric and the felt closely connected laminar composite deck that is adhered to steel bridge deck end face after modified epoxy dipping of laying from top to bottom; And form the rough surface with shearing tooth after three-dimensional glass cloth dipping modified epoxy; The EBM transition zone of mating formation, for taking shape in the mat formation epoxy macadam of rough surface of basic unit of FRP.