CN211621198U - Steel bridge deck pavement structure - Google Patents
Steel bridge deck pavement structure Download PDFInfo
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- CN211621198U CN211621198U CN201922195987.8U CN201922195987U CN211621198U CN 211621198 U CN211621198 U CN 211621198U CN 201922195987 U CN201922195987 U CN 201922195987U CN 211621198 U CN211621198 U CN 211621198U
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- pavement structure
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Abstract
The utility model relates to a bridge deck pavement technical field especially relates to a steel bridge deck pavement structure, and the structure of mating formation is multilayer composite construction, and from the bottom up includes steel bridge deck board, the waterproof tie coat of epoxy rubble, super high performance cement concrete lower surface course, epoxy tie coat, high-modulus asphalt concrete upper surface course in proper order, the waterproof tie coat of epoxy rubble sets up to the arch along the ascending cross section of steel bridge length direction. The utility model discloses a be the arch setting with epoxy rubble waterproof bonding layer, make the moisture that permeates into on the epoxy rubble waterproof bonding layer flow along the arch upper surface, can not invade to the steel bridge face on, protect the steel bridge face not corroded, improved the waterproof performance of steel bridge face.
Description
Technical Field
The utility model relates to a bridge deck pavement technical field especially relates to a steel bridge deck pavement structure.
Background
With the continuous extension of the service time of the domestic steel bridge deck in service and the increasing traffic volume, particularly the continuous increase of the passing proportion of trucks, the increasing large and heavy vehicle types, the increasing stress amplitude of the orthotropic steel bridge deck, the more cycle times, the increasingly prominent problems of bridge deck pavement and the fatigue damage of the orthotropic plates. Because the steel construction belongs to hot good conductor, the steel sheet surface temperature is usually up to 50~70 ℃ when high temperature in summer, and the interface between steel sheet and the layer of mating formation very easily takes place to pass under the coupling effect of driving load and high temperature, and the waterproof tie coat on steel sheet surface is easily suffered to destroy simultaneously, leads to the corrosion of steel bridge panel and then reduces the interface adhesive property between steel sheet and the layer of mating formation to take place to pass, embrace etc. disease.
Among the prior art, the structure that supreme steel bridge deck board, anticorrosive coating, waterproof bonding layer and the garrulous stone concrete of pitch mastic were in proper order down followed to the common adoption has improved the waterproof performance of steel bridge deck board through the setting of anticorrosive coating and waterproof bonding layer, has prevented the corrosion of steel bridge deck board. However, after the construction is finished, when mechanical equipment travels on a steel bridge deck, the waterproof bonding layer is easily damaged, so that the waterproof performance of the waterproof bonding layer is affected; but also influences the shearing resistance between the waterproof bonding layer and the upper asphalt mastic macadam concrete layer, and the pushed diseases still easily occur.
In view of the above problems, the designer is actively researched and innovated based on the practical experience and professional knowledge of the engineering application of the products for many years and by the application of the theory, so as to create a steel bridge deck pavement structure, and the steel bridge deck pavement structure is more practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a steel bridge deck pavement structure has solved the not good problem of waterproof performance among the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a steel bridge deck pavement structure, the structure of mating formation is multilayer composite construction, from the bottom up includes steel bridge panel, epoxy rubble waterproof bonding layer, ultra high performance cement concrete lower surface course, epoxy bonding layer, high modulus asphalt concrete upper surface course in proper order, epoxy rubble waterproof bonding layer sets up to the arch along the ascending cross section of steel bridge length direction.
Preferably, the arches of the epoxy resin gravel waterproof bonding layer are symmetrically arranged along the central line of the length direction of the steel bridge deck.
Preferably, the distance between the two arched ends of the epoxy resin gravel waterproof bonding layer is not less than the width of the steel bridge deck.
Preferably, the upper surface of the epoxy resin macadam waterproof bonding layer is a concave-convex surface formed by paving stones, and the concave-convex surface is coated with a binder.
Preferably, a reinforcing mesh is arranged in the epoxy resin gravel waterproof bonding layer.
Preferably, the lower surface layer of the ultra-high performance cement concrete and the epoxy resin bonding layer are arched.
Preferably, the lower surface of the upper surface layer of the high modulus asphalt concrete is an arch surface attached to the epoxy resin bonding layer, and the upper surface is a plane.
Preferably, the total thickness of the steel bridge deck pavement structure is 8-16 cm.
Preferably, the thickness of the lower surface layer of the ultra-high performance cement concrete is 3-6 cm.
Preferably, the thickness of the upper layer of the high-modulus asphalt concrete is 5-9 cm.
The utility model has the advantages that: the utility model discloses a be the arch setting with epoxy rubble waterproof bonding layer, make the moisture that permeates into on the epoxy rubble waterproof bonding layer flow along the arch upper surface, can not invade to the steel bridge face on, protect the steel bridge face not corroded, improved the waterproof performance of steel bridge face. In addition, the concave-convex surface that epoxy resin rubble waterproof bonding layer upper surface set up has improved the cooperativity between the layer, has prevented the relative movement between the layer, makes the structure of mating formation and steel bridge panel atress in coordination, improves the structure bearing capacity of mating formation by a wide margin, promotes the structure durability of mating formation, reduces bridge deck pavement disease and later stage maintenance work load.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a steel bridge deck pavement structure in an embodiment of the present invention;
fig. 2 is a partially enlarged schematic view of a position a in the embodiment of the present invention.
Reference numerals: 10-steel bridge deck slab, 20-epoxy resin gravel waterproof bonding layer, 21-concave-convex surface, 30-ultra-high performance cement concrete lower surface layer, 40-epoxy resin bonding layer and 50-high modulus asphalt concrete upper surface layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The steel bridge deck pavement structure shown in fig. 1 is a multilayer composite structure, and comprises a steel bridge deck 10, an epoxy resin gravel waterproof bonding layer 20, an ultra-high-performance cement concrete lower surface layer 30, an epoxy resin bonding layer 40 and a high-modulus asphalt concrete upper surface layer 50 from bottom to top in sequence, wherein the cross section of the epoxy resin gravel waterproof bonding layer 20 in the length direction of the steel bridge is arched. The utility model discloses a be the arch setting with epoxy rubble waterproof bonding layer 20, make the moisture that permeates into on the epoxy rubble waterproof bonding layer 20 flow along the arch upper surface, can not invade to steel bridge panel 10 on, protection steel bridge panel 10 does not receive the erosion, has improved the waterproof performance of steel bridge face.
In this embodiment, the arches of the epoxy resin macadam waterproof bonding layer 20 are symmetrically arranged along the center line of the steel bridge deck 10 in the length direction. Due to the arrangement of the arched paving layer, a supporting force is provided for the upper layer, so that the force of mechanical equipment on the high-modulus asphalt concrete upper surface layer 50 is uniformly distributed, the local damage of the paving layer is prevented, and the overall synergistic performance is improved.
Further, the distance between the two ends of the arch of the epoxy resin gravel waterproof bonding layer 20 is not less than the width of the steel bridge deck 10. Set up the effect that the width is greater than steel decking 10 width and lie in making moisture directly flow from the waterproof layer both sides, not take place the contact with steel decking 10 to improve steel decking 10's life, prevent that it from being corroded by the rainwater.
As shown in fig. 2, the upper surface of the waterproof epoxy resin/crushed stone adhesive layer 20 is preferably a concave-convex surface 21 formed by stone pavement, and the concave-convex surface 21 is coated with an adhesive. Concave-convex surface 21 is embedded into epoxy resin rubble waterproof bonding layer 20 by the stone that the size is greater than the rubble after the coating binder constitutes, and the setting of concave-convex surface has improved the resistance to shearing between the layer, promotes the structural durability of mating formation, reduces bridge deck pavement disease and later stage maintenance work load.
In this embodiment, a reinforcing mesh is disposed in the epoxy resin waterproof adhesive layer 20. The reinforcing mesh is used for improving the overall strength of the epoxy resin gravel waterproof adhesive layer 20 and preventing the epoxy resin gravel waterproof adhesive layer 20 from being damaged due to long-term loading.
Further, the lower surface layer 30 of the ultra-high performance cement concrete and the epoxy resin bonding layer 40 are arched. It should be noted here that the ultra-high performance concrete, abbreviated as UHPC, has ultra-high durability and ultra-high mechanical properties, so that the whole interior of the pavement structure is compact and has low porosity, the whole pavement structure has self-waterproof performance, and the surface of the steel plate is effectively protected from being rusted due to moisture contact.
Preferably, in the above embodiment, the lower surface of the high modulus asphalt concrete upper surface layer 50 is an arched surface attached to the epoxy resin adhesive layer 40, and the upper surface is a flat surface.
Specifically, the total thickness of the steel bridge deck pavement structure is 8-16 cm, the thickness of the ultra-high performance cement concrete lower surface layer 30 is 3-6 cm, and the thickness of the high modulus asphalt concrete upper surface layer 50 is 5-9 cm.
In the following part of this embodiment, for the sake of convenience right the utility model discloses carry out clearer understanding, carry out detailed description to the work progress of steel bridge deck pavement structure, the utility model discloses a steel bridge deck pavement structure, the gross thickness is 8cm, and for multilayer composite construction, the from the bottom up has set gradually steel bridge panel 10, the waterproof tie coat of epoxy rubble 20, the super high performance cement concrete lower surface course of 4cm 30, the epoxy tie coat 40 and the high-modulus asphalt concrete upper surface course of 4cm 50.
Sand blasting and rust removing are carried out on the steel bridge deck, and after antiseptic treatment is carried out, epoxy resin is sprayed, wherein the coating weight of the epoxy resin is 1kg/m2And meanwhile, 0.075-2.36 mm of basalt macadam is spread, and the spreading rate of the macadam is 70% of the full spread.
And binding a reinforcing mesh after the epoxy resin gravel waterproof bonding layer is finger-dried, wherein the diameter of the reinforcing steel bar is 8mm, the arrangement distance of the reinforcing steel bar is 20cm, and the reinforcing mesh is arranged at the 1/2 position of the lower surface layer of the ultra-high performance cement concrete.
The special material distributor is adopted to pour the lower surface layer of the ultra-high performance cement concrete, the thickness of the material distribution is strictly controlled according to the height of the template of 4cm, after the paving operation, the flatness is initially checked by using an aluminum alloy ruler, the surface is ensured to be flat without shortage of materials, after the paving and leveling, a proper amount of water is sprayed, and the film is automatically covered to preserve moisture and preserve health for 7 d.
Coating an epoxy resin adhesive layer with a coating weight of 0.7kg/m2The thickness is controlled to be 0.5-1.5 mm, and the health preserving is carried out under natural conditions.
And after the epoxy resin reaches a dry state, performing upper layer construction on the high-modulus asphalt concrete, wherein the thickness of the upper layer construction is 4cm, the high-modulus asphalt concrete is composed of a high-modulus asphalt cement, basalt broken stones and mineral powder, the high-modulus asphalt cement is prepared from 100 parts of SBS modified asphalt and 7 parts of composite high modulus agent, and the oilstone ratio is 5.5%.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a steel bridge deck pavement structure, its characterized in that, the structure of mating formation is multilayer composite construction, from the bottom up includes steel bridge deck board (10), epoxy rubble waterproof bonding layer (20), super high performance cement concrete lower surface layer (30), epoxy bonding layer (40), high-modulus asphalt concrete upper surface layer (50) in proper order, epoxy rubble waterproof bonding layer (20) set up to the arch along the ascending cross section of steel bridge length direction.
2. The steel deck pavement structure according to claim 1, wherein the arches of the epoxy resin rubble waterproof adhesive layer (20) are symmetrically arranged along the center line of the length direction of the steel deck plate (10).
3. The steel deck pavement structure according to claim 1, wherein the distance between the two arched ends of the epoxy resin macadam waterproof adhesive layer (20) is not less than the width of the steel deck plate (10).
4. The steel bridge deck pavement structure according to claim 1, wherein the upper surface of the epoxy resin gravel waterproof bonding layer (20) is a concave-convex surface (21) formed by stone pavement, and the concave-convex surface (21) is coated with a bonding agent.
5. The steel deck pavement structure according to claim 4, wherein a reinforcing mesh is arranged in the epoxy resin gravel waterproof bonding layer (20).
6. The steel deck pavement structure according to claim 1, wherein the ultra-high performance cement concrete lower layer (30) and the epoxy adhesive layer (40) are arched.
7. The steel deck pavement structure according to claim 1, wherein the lower surface of the high modulus asphalt concrete upper surface layer (50) is an arched surface attached to the epoxy resin bonding layer (40), and the upper surface is a plane.
8. The steel deck pavement structure according to claim 1, wherein the total thickness of the steel deck pavement structure is 8-16 cm.
9. The steel deck pavement structure according to claim 1, wherein the thickness of the ultra-high performance cement concrete lower surface layer (30) is 3-6 cm.
10. The steel bridge deck pavement structure according to claim 1, wherein the thickness of the high modulus asphalt concrete upper surface layer (50) is 5-9 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922195987.8U CN211621198U (en) | 2019-12-09 | 2019-12-09 | Steel bridge deck pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922195987.8U CN211621198U (en) | 2019-12-09 | 2019-12-09 | Steel bridge deck pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211621198U true CN211621198U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922195987.8U Expired - Fee Related CN211621198U (en) | 2019-12-09 | 2019-12-09 | Steel bridge deck pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211621198U (en) |
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2019
- 2019-12-09 CN CN201922195987.8U patent/CN211621198U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 Termination date: 20211209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |