Rigid pavement structure of steel bridge deck

Abstract

The utility model discloses a rigid pavement structure of a steel bridge deck. The rigid pavement structure comprises a steel bridge deck, a concrete pavement layer; shear nails; constructing a joint; an asphalt structure; and a waterproof structure. Compared with a traditional steel bridge deck rigid pavement system, the steel bridge deck rigid pavement system has the advantages that the problem of bonding of the steel bridge deck and the pavement layer is solved by arranging the shear nails on the steel bridge deck slab, the rigid pavement layer is made of common concrete, meanwhile, the appropriate construction joints are arranged, and the construction efficiency is improved. The rigid pavement layer is prevented from participating in structural stress to cause cracking of the bridge deck, proper structural joints and structural joint waterproof measures are arranged in the rigid pavement layer, the waterproof and other durability problems of the rigid pavement layer are solved, and due to the fact that special concrete is not needed, the steel bridge deck pavement structure is low in construction cost and convenient to construct on the aspect of steel bridge deck pavement.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge deck paving, in particular to a rigid paving structure for a steel bridge deck. Background Art

[0002] Traditional steel bridge deck paving mostly uses asphalt concrete directly laid on the steel plate. In order to solve the bonding problem between the steel plate and the asphalt, a bonding layer needs to be set under the asphalt layer. In order to reduce the weight of the pavement and increase durability, the upper asphalt also uses special materials such as epoxy asphalt or rubber asphalt. Due to the high cost. There is also a structural system in which the upper layer uses asphalt concrete and the lower layer uses concrete pavement. However, for the pavement of continuous steel box girder bridges, it is inevitable to participate in the force, so the lower concrete pavement is prone to cracking. Therefore, conventional technologies often use special concrete such as low shrinkage and high toughness to solve the bonding problem between the steel bridge deck and the pavement. The use of special concrete is expensive, and the construction and procurement are relatively cumbersome.

[0003] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel bridge deck rigid paving structure to solve the above-mentioned deficiencies and defects of the prior art.

[0005] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A steel bridge deck rigid pavement structure, characterized by comprising:

[0007] Steel bridge deck;

[0008] A concrete pavement layer paved on the bridge deck of the steel bridge deck;

[0009] Shear studs arranged on the bridge deck of the steel bridge deck and used to prevent the steel bridge deck from bonding with the concrete pavement layer;

[0010] Structural joints are arranged in the concrete pavement layer and spaced apart along the direction of the bridge;

[0011] an asphalt structure filled in the structural joint, and

[0012] A waterproof structure is arranged on top of the asphalt structure and is used to waterproof the bridge deck.

[0013] In a preferred embodiment of the present invention, it also includes longitudinal reinforcing ribs arranged at the bottom of the steel bridge deck and used to strengthen the supporting force of the steel bridge deck.

[0014] In a preferred embodiment of the present invention, the concrete pavement layer is C40 polypropylene fiber concrete.

[0015] In a preferred embodiment of the present invention, the thickness of the C40 polypropylene fiber concrete is 8CM.

[0016] In a preferred embodiment of the present invention, the shear nails are M20 shear nails.

[0017] In a preferred embodiment of the present invention, the asphalt structure is fine-grained modified asphalt concrete.

[0018] In a preferred embodiment of the present invention, the thickness of the asphalt structure filling is 4CM.

[0019] In a preferred embodiment of the present invention, the waterproof structure is a waterproof geotextile, and the thickness of the waterproof geotextile is 600 mm.

[0020] Due to the adoption of the above technical scheme, the beneficial effect of the utility model is that compared with the traditional steel bridge deck rigid paving system, the utility model solves the bonding problem between the steel bridge deck and the pavement layer by arranging shear nails on the steel bridge deck, the rigid pavement layer adopts ordinary concrete, and at the same time, by arranging appropriate structural joints, it is avoided that the rigid pavement layer participates in the structural force and causes the bridge deck to crack, and appropriate structural joints and structural joint waterproofing measures are arranged in the rigid pavement layer to solve the durability problems such as waterproofing of the rigid pavement layer. Since no special concrete is required, this patent has low cost and convenient construction in steel bridge deck paving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the paving structure of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the shear studs and the steel bridge deck of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the structural joint of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0026] See also Figures 1 to 3 A steel bridge deck rigid pavement structure shown includes a steel bridge deck 10, a concrete pavement layer 20, shear studs 30, structural joints 40, an asphalt structure 50 and a waterproof structure 60.

[0027] The concrete pavement layer 20 is paved on the bridge deck of the steel bridge deck 10. The concrete pavement layer in this embodiment is preferably C40 polypropylene fiber concrete, and the thickness of C40 polypropylene fiber concrete is 8CM.

[0028] The shear nails 30 are arranged on the bridge deck of the steel bridge deck 10, and the shear nails 30 can solve the bonding problem between the steel bridge deck and the concrete pavement layer. The shear nails in this embodiment are preferably M20 shear nails. Specifically, there are multiple shear nails 30, and the multiple shear nails are arranged on the bridge deck of the steel bridge deck 10 at intervals.

[0029] The structural joints 40 are arranged in the concrete pavement layer 20, and the structural joints 40 are arranged at intervals along the bridge direction. Specifically, by setting a structural joint 40 at intervals of 5 meters along the bridge direction, the problem of the pavement concrete participating in the structural force is avoided, and the lower pavement of the steel bridge deck 10 can use ordinary conventional concrete, while the concrete pavement layer used for the bridge deck pavement.

[0030] The asphalt structure 50 is filled in the structural joint 40. The asphalt structure 50 in this embodiment is preferably fine-grained modified asphalt concrete. The thickness of the asphalt structure 50 is 4CM.

[0031] The waterproof structure 60 is arranged on the top of the asphalt structure 50 and is used for waterproofing the bridge deck. The waterproof structure 60 in this embodiment is preferably a waterproof geotextile, and the thickness of the waterproof geotextile is 600 mm.

[0032] It also includes longitudinal reinforcing ribs 70 disposed at the bottom of the steel bridge deck 10 and used to strengthen the supporting force of the steel bridge deck 10. Specifically, there are a plurality of longitudinal reinforcing ribs 70, which are arranged at intervals at the bottom of the steel bridge deck 10.

[0033] Compared with the traditional rigid paving system of steel bridge deck, the utility model solves the bonding problem between the steel bridge deck and the pavement layer by arranging shear nails on the steel bridge deck, the rigid pavement layer adopts ordinary concrete, and at the same time, by arranging appropriate structural joints, it is avoided that the rigid pavement layer participates in the structural force and causes the bridge deck to crack, and appropriate structural joints and structural joint waterproofing measures are arranged in the rigid pavement layer to solve the durability problems such as waterproofing of the rigid pavement layer. Since no special concrete is required, the patent has low cost in steel bridge deck paving and is easy to construct.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel bridge deck rigid pavement structure, characterized in that: include: Steel bridge deck; A concrete pavement layer paved on the bridge deck of the steel bridge deck; Shear studs arranged on the bridge deck of the steel bridge deck and used to prevent the steel bridge deck from bonding with the concrete pavement layer; Structural joints are arranged in the concrete pavement layer and spaced apart along the direction of the bridge; an asphalt structure filled in the structural joint, and A waterproof structure is arranged on top of the asphalt structure and is used to waterproof the bridge deck.

2. A steel bridge deck rigid pavement structure according to claim 1, characterized in that: It also includes longitudinal reinforcing ribs arranged at the bottom of the steel bridge deck and used to strengthen the supporting force of the steel bridge deck.

3. The steel bridge deck rigid pavement structure according to claim 1, characterized in that: The concrete pavement layer is C40 polypropylene fiber concrete.

4. A steel bridge deck rigid pavement structure according to claim 3, characterized in that: The thickness of the C40 polypropylene fiber concrete is 8CM.

5. The steel bridge deck rigid pavement structure according to claim 1, characterized in that: The shear nails are M20 shear nails.

6. The steel bridge deck rigid pavement structure according to claim 1, characterized in that: The asphalt structure is fine-grained modified asphalt concrete.

7. The steel bridge deck rigid pavement structure according to claim 1, characterized in that: The thickness of the asphalt structure filling is 4CM.

8. The steel bridge deck rigid pavement structure according to claim 1, characterized in that: The waterproof structure is a waterproof geotextile, and the thickness of the waterproof geotextile is 600 mm.

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