CN219342846U

CN219342846U - Steel bridge deck pavement structure

Info

Publication number: CN219342846U
Application number: CN202320161911.7U
Authority: CN
Inventors: 熊健; 范磊
Original assignee: Guangzhou Xinyue Traffic Technology Co ltd
Current assignee: Guangzhou Xinyue Traffic Technology Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-07-14
Anticipated expiration: 2033-02-08

Abstract

The application provides a steel bridge deck pavement structure, include on steel bridge deck from supreme rust-resistant layer, the epoxy layer that sets up down, bonding anti-skidding rubble layer, first pitch layer, waterproof layer, second pitch layer, wearing and tearing layer. The structure is simple, and the construction and the use are convenient; each layer has definite functions and good applicability; has excellent waterproof, drainage, anti-slip, noise reduction, cooling and other functions; is not easy to damage, has long service life and is suitable for large-scale popularization and application.

Description

Steel bridge deck pavement structure

Technical Field

The application relates to the field of bridge deck pavement, in particular to a steel bridge deck pavement structure.

Background

Along with the rapid economic growth and technological progress of China, the requirements for realizing river-crossing and sea-crossing traffic are increasingly increased, the construction of a large-span highway steel bridge is rapidly developed, and the steel bridge deck pavement materials and technologies of China are also transited from the initial stage of directly introducing foreign mature pavement structures and technologies to the innovation stage mainly based on autonomous development.

The bridge deck pavement problem always plagues the road and bridge engineering community, wherein the durability and the functionality of the steel bridge deck pavement are particularly outstanding. Currently, fatigue cracking and delamination over time are the primary failure modes of steel deck pavement. The steel bridge deck pavement structure must have certain following deformability, structural integrity, water tightness, skid resistance and the like with the steel plate so as to ensure the durability and the functional requirements thereof. How to effectively prolong the service life of bridge deck pavement and improve the driving quality of the bridge deck is the focus of research in the field of bridge deck pavement at present. The biggest difficulty in bridge deck pavement is how to process the bonding of a concrete bridge deck or a steel bridge deck and an asphalt pavement layer, and ensure that the concrete bridge deck or the steel bridge deck is in a good bonding state for a long time under a service state. Failure of the bridge deck pavement bonding layer and cracking of the bonding layer easily lead to generation of reflection cracks of the asphalt surface layer, and the generation of cracks of the asphalt surface layer can lead to infiltration of external water, thereby increasing failure of the bonding layer and expansion of failure area.

Under the traditional pavement mode, due to the fact that the modulus of the asphalt layer is different from that of the steel plate (or the concrete slab), the deformation capacity of the asphalt layer and the steel plate (or the concrete slab) is poor, particularly, the steel bridge deck is affected by the bridge structural form, the steel plate is greatly deformed under the action of load and temperature, the asphalt layer cannot adapt to the deformation, the steel plate surface is smooth, and the pavement layer is easy to slip, so that diseases are generated.

Disclosure of Invention

In view of the problems, the present application has been made to provide a steel deck pavement structure that overcomes the problems or at least partially solves the problems, including:

a steel bridge deck pavement structure comprises a rust-proof layer, an epoxy resin layer, a bonding anti-slip rubble layer, a first asphalt layer, a waterproof layer, a second asphalt layer and a wearing layer which are arranged on a steel bridge deck from bottom to top.

Further, the rust preventive layer has a thickness of 70 to 90. Mu.m.

Further, the epoxy resin layer is used in an amount of 0.5 to 2.0kg/m ² 。

Further, the bonding anti-slip gravel layer comprises a bonding gravel layer and an anti-slip gravel layer which are arranged from bottom to top.

Further, the thickness of the bonding crushed stone layer and the thickness of the anti-skid crushed stone layer are both 2-6mm.

Further, the thickness of the waterproof layer is 4-8mm.

Further, the first asphalt layer is a hot asphalt layer, and the dosage of the first asphalt layer is 0.5-2.0kg/m ² 。

Further, the second asphalt layer is an asphalt structure layer, and the thickness of the second asphalt layer is 35-45mm.

Further, the wearing layer comprises a drainage wearing layer and a flexible concrete wearing layer which are arranged from bottom to top.

Further, the thickness of the drainage wearing layer and the thickness of the flexible concrete wearing layer are 10-15mm.

The application has the following advantages:

in the embodiment of this application, for "the steel sheet warp greatly under load and temperature effect among the prior art, and the asphalt layer often can not adapt to this kind of deformation, and the steel sheet face is smoother, the layer of mating formation takes place to slide easily to lead to the production of disease", this application provides "a solution of steel bridge face mating formation structure", specifically does: the steel bridge deck comprises a rust-proof layer, an epoxy resin layer, a bonding anti-skid rubble layer, a first asphalt layer, a waterproof layer, a second asphalt layer and a wearing layer which are arranged on the steel bridge deck from bottom to top. The rust-proof layer, the epoxy resin layer, the bonding anti-skid broken stone layer, the first asphalt layer, the waterproof layer, the second asphalt layer and the wearing layer which are arranged on the steel bridge deck from bottom to top solve the problems that the steel plate deforms greatly under the load and temperature, the asphalt layer cannot adapt to the deformation, the steel plate surface is smooth, and the paving layer slides easily, so that the disease is generated, the structure is simple, and the construction and the use are convenient; each layer has definite functions and good applicability; has excellent waterproof, drainage, anti-slip, noise reduction, cooling and other functions; is not easy to damage, has long service life and is suitable for large-scale popularization and application.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural diagram of a steel bridge deck pavement structure according to an embodiment of the present application.

In the accompanying drawings: 1. a rust-proof layer; 2. an epoxy resin layer; 3. bonding the anti-slip crushed stone layer; 4. a first asphalt layer; 5. a waterproof layer; 6. a second asphalt layer; 7. a wearing layer; 8. steel bridge deck.

Detailed Description

In order to make the objects, features and advantages of the present application more comprehensible, the present application is described in further detail below with reference to the accompanying drawings and detailed description. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The inventors found by analyzing the prior art that: under the traditional pavement mode, due to the fact that the modulus of the asphalt layer is different from that of the steel plate (or the concrete slab), the deformation capacity of the asphalt layer and the steel plate (or the concrete slab) is poor, particularly, the steel bridge deck is affected by the bridge structural form, the steel plate is greatly deformed under the action of load and temperature, the asphalt layer cannot adapt to the deformation, the steel plate surface is smooth, and the pavement layer is easy to slip, so that diseases are generated.

Referring to fig. 1, a schematic structural diagram of a steel bridge deck pavement structure according to an embodiment of the present application is shown;

a steel bridge deck pavement structure comprises a rust-proof layer 1, an epoxy resin layer 2, a bonding anti-skid rubble layer 3, a first asphalt layer 4, a waterproof layer 5, a second asphalt layer 6 and a wearing layer 7 which are arranged on a steel bridge deck 8 from bottom to top.

In the embodiment of this application, for "the steel sheet warp greatly under load and temperature effect among the prior art, and the asphalt layer often can not adapt to this kind of deformation, and the steel sheet face is smoother, the layer of mating formation takes place to slide easily to lead to the production of disease", this application provides "a solution of steel bridge face mating formation structure", specifically does: the steel bridge deck slab comprises a rust prevention layer 1, an epoxy resin layer 2, a bonding anti-skid broken stone layer 3, a first asphalt layer 4, a waterproof layer 5, a second asphalt layer 6 and a wearing layer 7 which are arranged on a steel bridge deck slab 8 from bottom to top. The problems that the steel plate deforms greatly under the action of load and temperature and the asphalt layer cannot adapt to the deformation, the steel plate surface is smooth, and the paving layer slides easily are solved through the rust prevention layer 1, the epoxy resin layer 2, the bonding anti-skid broken stone layer 3, the first asphalt layer 4, the waterproof layer 5, the second asphalt layer 6 and the wearing layer 7 which are arranged on the steel bridge deck 8 from bottom to top, so that the disease generation is realized, the structure is simple, and the construction and the use are convenient; each layer has definite functions and good applicability; has excellent waterproof, drainage, anti-slip, noise reduction, cooling and other functions; is not easy to damage, has long service life and is suitable for large-scale popularization and application.

Next, a steel bridge deck pavement structure according to the present exemplary embodiment will be further described.

In one embodiment of the present utility model, the thickness of the rust preventive layer 1 is 70-90 μm; in a specific embodiment, the rust-proof layer 1 adopts an epoxy resin zinc-rich primer, the epoxy resin zinc-rich primer adopts a paint composed of a medium molecular epoxy resin, a special resin, zinc powder, an auxiliary agent, a solvent and the like as an B component, and the other component is a double-component self-drying paint of an amine curing agent.

In one embodiment of the utility model, the epoxy resin layer 2 is used in an amount of 0.5 to 2.0kg/m ² The method comprises the steps of carrying out a first treatment on the surface of the In one embodiment, 0.5 to 2.0kg/m of the antirust layer 1 is spread ² Is a reactive epoxy resin; the epoxy resin layer 2 has the advantages of strong adhesion to the steel structure, large deformation space, high strength and strong shearing resistance, and can effectively absorb the relative displacement between the pavement layer and the bridge deck, and play a role of a stress absorbing layer, thereby realizing good follow-up performance between the steel bridge deck pavement layer and the bridge deck steel plate, and effectively solving the problems of large deformation and bonding layer of the large-span steel structure bridgeAnd the bonding with the upper structural layer, and plays a good role in reinforcing the overall rigidity of the steel plate.

In one embodiment of the present utility model, the bonded anti-slip crushed stone layer 3 includes a bonded crushed stone layer and an anti-slip crushed stone layer arranged from bottom to top; in one embodiment, the bonded stone layer is mixed according to the proportion of 150 parts of active epoxy resin and 100-250 parts of stone; by spreading the anti-slip crushed stone layer with the spreading amount of 2-6kg/m ² Preferably, the adhesion of the crushed stone layer produces a roughness that facilitates adhesion of the first asphalt layer 4.

In one embodiment of the present utility model, the thickness of the bonded stone layer and the thickness of the anti-slip stone layer are both 2-6mm.

In an embodiment of the present utility model, the thickness of the waterproof layer 5 is 4-8mm; in a specific embodiment, the waterproof layer 5 is a flexible high-strength anti-cracking waterproof coiled material, and the thickness is 4-8mm; the stress absorbing layer can be realized, and the generation of reflection cracks can be effectively prevented; the bonding of the first asphalt layer 4 and the bonding anti-slip gravel layer 3 can be ensured, and the first asphalt layer 4 and the bonding anti-slip gravel layer 3 are completely isolated, so that external water is effectively prevented from penetrating into the bonding anti-slip gravel layer 3.

In one embodiment of the utility model, the first asphalt layer 4 is a hot asphalt layer, and the amount of the first asphalt layer 4 is 0.5-2.0kg/m ² 。

In an embodiment of the present utility model, the second asphalt layer 6 is an asphalt structural layer, and the thickness of the second asphalt layer 6 is 35-45mm; in one embodiment, the second asphalt layer 6 is a main structural stress layer of the bridge deck pavement structure, and has a thickness of 35-45cm; wherein, the performance indexes of the high polymer composite crosslinked high-performance modified asphalt used for the second asphalt layer 6 are as follows: 100g at 25 ℃ for 6s, and the penetration is not less than 5mm; the softening point (ring ball method) is not less than 90 ℃; the ductility is not less than 30cm at 5 ℃ and 5 cm/min; solubility is not less than 99%; flash point is not less than 235 ℃; at 25 ℃, the elastic recovery is not less than 90%, the viscosity and toughness are not less than 25N.m, and the penetration ratio is not less than 75%; the ductility is not less than 20cm at 5 ℃.

In one embodiment of the utility model, the wearing layer 7 comprises a drainage wearing layer and a flexible concrete wearing layer which are arranged from bottom to top; in a specific embodiment, the drainage noise reduction type functional wearing layer with the porosity of 20-25% has the characteristics of drainage, skid resistance, noise reduction and durability, and can ensure that the bridge deck pavement structure can provide high-quality driving quality service for a long time.

In one embodiment, the flexibility in the flexible concrete wearing layer may also be interpreted as flexibility, an object property with respect to rigidity. Flexibility refers to a physical property of an object that deforms after a force is applied and that the object itself cannot return to its original shape after the force is lost. The flexible concrete wearing layer may be any suitable flexible concrete wearing layer, which is used for directly contacting with wheels and environment, and has enough friction coefficient to meet the requirement of driving safety, and has the requirement of road surface flatness and high temperature stability to meet the driving comfort, and in a specific implementation, the flexible concrete wearing layer is an ultrathin surface. The ultrathin surface can be provided with any suitable composition, and is formed by mixing a first binder and a first aggregate according to a mass ratio of 5.5-6.0:100, wherein the first binder is SBS modified asphalt; the first aggregate may be any suitable aggregate, the first aggregate is basalt aggregate and the thickness of the flexible concrete wearing layer may be determined as desired.

In one embodiment of the utility model, the thickness of the drain wear layer and the thickness of the flexible concrete wear layer are both 10-15mm.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While preferred embodiments of the present embodiments have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the present application.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The foregoing has described in detail a steel bridge deck pavement structure provided herein, and specific examples have been applied to illustrate the principles and embodiments of the present application, where the illustration of the foregoing examples is only for aiding in understanding of the method and core idea of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. The steel bridge deck pavement structure is characterized by comprising a rust-proof layer, an epoxy resin layer, an adhesive anti-slip rubble layer, a first asphalt layer, a waterproof layer, a second asphalt layer and a wearing layer which are arranged on a steel bridge deck from bottom to top; wherein, bonding anti-skidding gravel layer includes bonding gravel layer and the anti-skidding gravel layer that sets up from down to top.

2. The steel bridge deck pavement structure of claim 1, wherein the rust preventive layer has a thickness of 70-90 μm.

3. Steel bridge according to claim 1The paving structure is characterized in that the dosage of the epoxy resin layer is 0.5-2.0kg/m ² 。

4. The steel bridge deck pavement structure of claim 1, wherein the thickness of the bonded crushed stone layer and the thickness of the anti-slip crushed stone layer are both 2-6mm.

5. The steel bridge deck pavement structure of claim 1, wherein the waterproof layer has a thickness of 4-8mm.

6. The steel bridge deck pavement structure of claim 1, wherein the first asphalt layer is a hot asphalt layer, and the amount of the first asphalt layer is 0.5-2.0kg/m ² 。

7. The steel bridge deck pavement structure of claim 1, wherein the second asphalt layer is an asphalt structural layer, and the thickness of the second asphalt layer is 35-45mm.

8. The steel bridge deck pavement structure of claim 1, wherein the wear layer comprises a drainage wear layer and a flexible concrete wear layer disposed from bottom to top.

9. The steel bridge deck pavement structure of claim 8, wherein the thickness of the drainage wear layer and the thickness of the flexible concrete wear layer are both 10-15mm.