CN217923077U

CN217923077U - Novel pavement structure of pedestrian steel bridge

Info

Publication number: CN217923077U
Application number: CN202222309256.3U
Authority: CN
Inventors: 王杰; 徐建晖; 陈诚; 党静
Original assignee: CHONGQING ZHIXIANG PAVING TECHNOLOGY ENGINEERING CO LTD
Current assignee: CHONGQING ZHIXIANG PAVING TECHNOLOGY ENGINEERING CO LTD
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-29
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses a novel pavement structure of pedestrian steel bridge belongs to building construction technical field, include steel sheet, anticorrosive coating, waterproof layer, adhesion layer, buffer layer and the functional layer of laying from bottom to top, adhesion layer includes fastening frame, connecting plate, and the connecting plate surface is equipped with a plurality of diamond holes, and a plurality of vertical spouts have all been seted up to fastening frame inboard, and the connecting plate is equipped with the slider that slides with the spout cooperation all around, and fastening frame bottom border is equipped with a plurality of vertical first even boards that are L shape downwards, and first even board is connected with steel sheet surface fixed; a plurality of second connecting plates which are vertically upwards L-shaped are welded at the edge of the top of the fastening frame, a plurality of through holes are formed in the surfaces of the first connecting plate and the second connecting plate, and when the functional layer is laid, the horizontal end of each second connecting plate can be inserted into the functional layer; the utility model discloses a multilayer structure of mating formation has formed that the wholeness is stronger, the deformability is better in coordination, and bonding strength is stronger and the more excellent special construction of durability between the layer.

Description

Novel pavement structure of pedestrian steel bridge

Technical Field

The utility model belongs to the technical field of the construction, concretely relates to novel structure of mating formation of pedestrian steel bridge.

Background

With the continuous development of urban construction, pedestrian steel bridges also appear in urban road systems as an important pedestrian traffic infrastructure. The pavement layer of the steel-travelling bridge has the functions of protecting the bridge structure, preventing delamination, resisting aging and the like, and also needs to provide comfortable walking experience and harmonious visual effect for pedestrians.

At present, common pavement structures of pedestrian steel bridges are generally paved by paving rigid concrete, paving flexible rubber and paving thin-layer colorful anti-skid layers in sequence according to requirements. For example, CN105088965B discloses a bridge deck pavement structure and method for steel bridge, in which only the bonding layer and the pavement layer are sequentially laid as required, and no fastening structure is provided to reduce the possibility of layer splitting after the pavement.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a novel structure of mating formation of pedestrian steel bridge has solved the problem that current steel bridge structure of mating formation is laid the easy damaged fracture in back.

In order to achieve the above purpose, the utility model provides a following technical scheme: a novel pavement structure of a pedestrian steel bridge comprises a steel plate, an anticorrosive layer, a waterproof layer, an adhesion layer, a buffer layer and a functional layer, wherein the steel plate, the anticorrosive layer, the waterproof layer, the adhesion layer, the buffer layer and the functional layer are paved from bottom to top, the adhesion layer comprises a fastening frame and a connecting plate arranged in the fastening frame, a plurality of rhombic holes used for filling adhesive materials are distributed on the surface of the connecting plate at intervals, a plurality of vertical sliding grooves are formed in each edge of the inner side of the fastening frame, sliding blocks matched with the sliding grooves to slide are arranged on the periphery of the connecting plate, a plurality of first connecting plates which are vertically downward and in an L shape are arranged on the edge of the bottom of the fastening frame, the horizontal ends of the first connecting plates face the center of the fastening frame, and the first connecting plates are fixedly connected with the surface of the steel plate; a plurality of second connecting plates which are vertically upwards L-shaped are welded at the edge of the top of the fastening frame, and the horizontal ends of the second connecting plates face the center of the fastening frame; first even board, second even board surface all are equipped with a plurality of through-hole, and when the functional layer was laid, the second was even the horizontal end of board and can be inserted in the functional layer.

Furthermore, the anticorrosive coating adopts single-component high-solid acrylic acid anticorrosive primer, and the thickness of the anticorrosive coating is 0.4-0.6mm.

Furthermore, the waterproof layer is made of a double-component reaction type methyl methacrylate material, and the thickness of the waterproof layer is 1-3mm.

Furthermore, the bonding material in the diamond-shaped holes is a single-component modified polyurethane bonding agent, and the filling thickness is 0.4-0.6mm.

Furthermore, the buffer layer is made of a modified polyurethane material, and the thickness of the buffer layer is 2-4cm.

Furthermore, the functional layer adopts epoxy resin as a cementing material, and the thickness of the functional layer is 1-3 cm.

Furthermore, rubber particles with the particle size of 2-3mm are added into the modified polyurethane material of the buffer layer.

Furthermore, color aggregates with the grain diameter of 1-2mm are added into the epoxy resin of the functional layer.

The beneficial effects of the utility model reside in that:

the utility model discloses a multilayer by anticorrosive coating, waterproof layer, the multilayer of gluing layer, buffer layer and functional layer constitution structure of mating formation, this multilayer structure of mating formation has formed that the wholeness is stronger, deformability is better in coordination, the stronger and more excellent special construction of durability of bonding strength between the layer.

Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a explain as follows the attached drawing:

FIG. 1 is a schematic overall cross-sectional view of a steel bridge according to the present invention;

FIG. 2 is a schematic view of the outer surface of the steel bridge of the present invention;

fig. 3 is a schematic perspective view of the local structure of the steel bridge of the present invention.

The drawings are numbered as follows: the waterproof layer comprises an anticorrosive layer 1, a waterproof layer 2, an adhesive layer 3, a fastening frame 31, a first connecting plate 311, a second connecting plate 312, a sliding groove 313, a connecting plate 32, diamond holes 321, a buffer layer 4, a functional layer 5 and a steel plate 6.

Detailed Description

As shown in fig. 1-3, the utility model provides a novel pavement structure of pedestrian steel bridge, including steel sheet 6, anticorrosive coating 1, waterproof layer 2, adhesion layer 3, buffer layer 4 and functional layer 5 laid from bottom to top, adhesion layer 3 includes fastening frame 31, the connecting plate 32 that vertical slip set up in fastening frame 31, the interval distribution in connecting plate 32 surface has a plurality of diamond holes 321 that are used for filling bonding material, a plurality of vertical spouts 313 have all been seted up on each edge of fastening frame 31 inboard, connecting plate 32 welds all around has the slider that cooperates with spout 313 and slides, the spout quantity on each edge is 2 in this embodiment; a plurality of first connecting plates 311 which are vertically downward and L-shaped are welded at the bottom edge of the fastening frame 31, the horizontal ends of the first connecting plates 311 face the center of the fastening frame 31, each side of the embodiment is provided with one first connecting plate 311, and the first connecting plates 311 are connected with the surface of the steel plate 6 through bolts; a plurality of second connecting plates 312 which are vertically upward and L-shaped are welded at the top edge of the fastening frame 31, the horizontal ends of the second connecting plates 312 face the center of the fastening frame 31, and each side of the embodiment is provided with one second connecting plate 312; first even board 311, second even board 312 surface all are equipped with a plurality of through-hole, and the through-hole makes the material fill the back and connects inseparabler, and when functional layer 5 laid, the horizontal end of second even board 312 can be inserted in functional layer 5.

In the scheme, a fastening frame 31 is installed in advance, so that a first connecting plate 31 is connected with the surface of a steel plate 6 through bolts, then an anticorrosive layer 1 and a waterproof layer 2 are laid according to requirements, after the anticorrosive layer 1 and the waterproof layer 2 are dried, a connecting plate 32 is installed through a sliding groove 313 in the inner side of the fastening frame 31, then bonding materials are filled in a diamond-shaped hole 321, and after the bonding materials are dried, a buffer layer 4 and a functional layer 5 are laid in sequence according to requirements; the multilayer pavement structure of constituteing by anticorrosive coating 1, waterproof layer 2, bonding layer 3, buffer layer 4 and functional layer 5 has formed that the wholeness is stronger, deformation ability is better in coordination, and the stronger and more excellent special construction of durability of bonding strength between the layer is connected through fastening frame 31 when laying, and first connecting plate 311, second link board 312 are fixed each layer, can be so that above level connection inseparabler, difficult loose, more durable practicality.

The anti-corrosion layer 1 is a single-component high-solid acrylic acid anti-corrosion primer, and is directly paved on the surface of the steel plate 6 of the steel bridge in a manual roll coating or mechanical spraying mode, the paving thickness of the anti-corrosion layer 1 is 0.5mm, the mechanical spraying is adopted in the embodiment, the maintenance is carried out for 60 minutes, and the waterproof layer 2 is paved after the mechanical spraying is dried.

The waterproof layer 2 is bi-component methyl methacrylate, the surface of the anti-corrosion layer 1 after the waterproof layer 2 is dried is paved by a small spraying machine, the paving thickness of the waterproof layer 2 is 2mm, the waterproof layer is maintained for 60 minutes, after the waterproof layer 2 is dried, the sliding blocks on the peripheral side of the connecting plate 32 are installed in the sliding grooves 313 on the inner side of the fastening frame 31 in a sliding mode, and then the diamond holes 321 are filled with bonding materials.

The bonding material of the bonding layer 3 is modified polyurethane adhesive, the bonding material is filled in the diamond holes 321 in an artificial filling mode, the laying thickness of the bonding material is 0.5mm, the maintenance is carried out for 120 minutes, and the buffer layer 4 is laid after the bonding material is dried.

The buffer layer 4 is a mixed material composed of a modified polyurethane material and elastic rubber particles with the particle size of 2.5mm, a small paver is adopted to lay the surface of the bonding layer 3 after the layer is dried, a small steel wheel is adopted to roll the bonding layer to be smooth, the laying thickness of the buffer layer 4 is 3mm, the maintenance is carried out for 180 minutes, and the functional layer 5 is laid after the layer is dried.

The functional layer 5 is a mixed material composed of epoxy resin and color aggregates with the grain diameter of 1.5mm, the mixed material is coated on the buffer layer 4 after the full drying in a scraping mode through a scraper, a part of the functional layer 5 is coated on the horizontal end surface of the connecting plate 312 in a scraping mode, the thickness of the functional layer 5 is 2mm, and the functional layer 5 can be opened and pass after being maintained for 120 minutes.

In the application, the anticorrosive coating 1 with high solid content of acrylic acid realizes long-acting corrosion prevention of the steel bridge steel plate 6, and reduces the corrosion of the surface of the steel bridge steel plate caused by spraying substances; the waterproof layer 2 made of the methyl methacrylate material can effectively reduce the possibility that the steel plate 6 of the steel bridge is corroded by water, and forms waterproof protection for the steel plate 6 of the steel bridge; the adhesive layer 3 of the polyurethane adhesive can enhance the strong adhesion between the upper layer and the lower layer in the paving structure and reduce the possibility of cracking of the upper layer and the lower layer; the buffer layer 4 consisting of the polyurethane material and the rubber particles can realize the functions of shock absorption and bearing; the functional layer 5 formed by the epoxy resin and the color aggregate can realize the antiskid function of the pavement layer, and the color aggregate is mixed in the functional layer, so that the surface of the steel bridge has comfortableness and landscape.

The utility model provides a structure of mating formation is whole frivolous, can reduce because the cost that the material is too thick to be increased, compares in the tradition and mats formation, and the structure of mating formation of this application can alleviate the dead load, can practice thrift construction cost again, does benefit to the sustainable development of people's moving steel bridge very much.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a novel structure of mating formation of pedestrian steel bridge which characterized in that: the binding layer comprises a fastening frame and a connecting plate arranged in the fastening frame, a plurality of rhombic holes used for filling binding materials are distributed on the surface of the connecting plate at intervals, a plurality of vertical sliding grooves are formed in each edge of the inner side of the fastening frame, sliding blocks matched with the sliding grooves to slide are arranged on the periphery of the connecting plate, a plurality of first connecting plates which are vertically downward and in an L shape are arranged on the edge of the bottom of the fastening frame, the horizontal ends of the first connecting plates face the center of the fastening frame, and the first connecting plates are fixedly connected with the surface of the steel plate; a plurality of second connecting plates which are vertically upwards in an L shape are arranged at the edge of the top of the fastening frame, and the horizontal ends of the second connecting plates face the center of the fastening frame; first even board, second are even the board surface and all are equipped with a plurality of through-hole, and when the functional layer was laid, the second was even the horizontal end of board can insert in the functional layer.

2. The novel pavement structure of the pedestrian steel bridge according to claim 1, characterized in that: the anticorrosive coating adopts single-component high-solid acrylic acid anticorrosive primer, and the thickness of the anticorrosive coating is 0.4-0.6mm.

3. The novel pavement structure of the pedestrian steel bridge according to claim 2, characterized in that: the waterproof layer is made of a bi-component reaction type methyl methacrylate material, and the thickness of the waterproof layer is 1-3mm.

4. The novel pavement structure of the pedestrian steel bridge according to claim 3, characterized in that: the bonding material in the diamond-shaped holes is a single-component modified polyurethane adhesive, and the filling thickness is 0.4-0.6mm.

5. The novel pavement structure of the pedestrian steel bridge according to claim 4, characterized in that: the buffer layer is made of modified polyurethane materials, and the thickness of the buffer layer is 2-4cm.

6. The novel pavement structure of the pedestrian steel bridge according to claim 5, characterized in that: the functional layer adopts epoxy resin as a cementing material, and the thickness of the functional layer is 1-3 cm.

7. The novel pavement structure of the pedestrian steel bridge according to claim 6, characterized in that: rubber particles with the particle size of 2-3mm are added into the modified polyurethane material of the buffer layer.

8. The novel pavement structure of the pedestrian steel bridge according to claim 7, characterized in that: the epoxy resin of the functional layer is added with color aggregate with the grain diameter of 1-2 mm.