CN214143297U - Steel bridge deck pavement structure - Google Patents
Steel bridge deck pavement structure Download PDFInfo
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- CN214143297U CN214143297U CN202023120362.4U CN202023120362U CN214143297U CN 214143297 U CN214143297 U CN 214143297U CN 202023120362 U CN202023120362 U CN 202023120362U CN 214143297 U CN214143297 U CN 214143297U
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Abstract
The application relates to the field of bridge deck pavement technology, and discloses a steel bridge deck pavement structure, including steel bridge deck board, cement concrete layer and asphalt concrete layer. Cement concrete layer lays in steel bridge deck slab top, asphalt concrete layer lays in cement concrete layer top, the equal fixedly connected with steel sheet in steel bridge deck slab both sides, the one end and the steel bridge deck slab fixed connection of steel sheet, cement concrete layer is worn to establish by the other end, stretch in the asphalt concrete layer, the steel sheet is towards one side fixedly connected with wedge of asphalt concrete layer, the inclined plane of wedge inclines towards asphalt concrete layer from bottom to top, asphalt concrete layer is worn to establish by the bottom of wedge, and bury underground in the cement concrete layer, the top of wedge and asphalt concrete layer's surface parallel and level. The wedge block can limit the asphalt concrete layer and reduce the possibility of shear stress in the asphalt concrete layer.
Description
Technical Field
The application relates to the field of bridge deck pavement technology, in particular to a steel bridge deck pavement structure.
Background
The steel bridge is widely applied due to the advantages of light dead weight, large span, good rigidity, high construction efficiency, good quality stability and the like, and the pavement of the steel bridge is always a difficult problem. The bridge deck pavement of the steel box girder bridge is generally composed of an anti-rust layer, a bonding layer and an asphalt mixture pavement layer, and is directly paved on a steel box girder top plate, wherein the total thickness is 35-80 mm. Due to the particularity of the using conditions, the construction process and the quality control and requirements of the steel box girder bridge deck pavement, the steel box girder bridge deck pavement has high requirements on the strength, the fatigue resistance, the rutting resistance, the shearing resistance, the deformation coordination and the like, and a general and effective steel bridge deck pavement design theory and method are not formed at present.
Chinese patent No. CN205557332U discloses a composite pavement structure for a steel bridge deck containing stayed-cable steel wires, which comprises a steel bridge deck, wherein steel plates are respectively arranged on two sides of the upper end surface of the steel bridge deck at equal intervals, one side of each steel plate is connected with the upper end surface of the steel bridge deck through the stayed-cable steel wires, and a waterproof concrete layer is paved on the upper end surface of the steel bridge deck; and an asphalt concrete paving layer is paved on the upper end surface of the waterproof concrete layer. One end of the steel plate is positioned in the asphalt concrete pavement layer, and the other end of the steel plate penetrates through the waterproof concrete layer and is connected with the upper end face of the steel bridge deck. When the steel bridge works, a constructor firstly pours a waterproof concrete layer on the steel bridge surface and fixes the steel plate and the diagonal steel wires in the waterproof concrete layer. And after the strength development of the waterproof concrete layer is finished, paving an asphalt concrete paving layer on the waterproof concrete layer. When the asphalt concrete pavement layer slips, the inclined pull steel wires and the steel plates block the asphalt concrete pavement layer.
To the correlation technique among the above-mentioned, the inventor thinks that the elasticity modulus of bituminous concrete pavement layer is little, yielding, and the steel sheet does not protect the bituminous concrete pavement layer one side of keeping away from waterproof concrete layer, and the bituminous concrete pavement layer of steel sheet top still can take place to slide to form shear stress in the bituminous concrete pavement layer, the possibility of causing the damage to the concrete pavement layer exists.
SUMMERY OF THE UTILITY MODEL
Among the correlation technique, the elasticity modulus on bituminous concrete pavement layer is little, yielding, and the steel sheet does not protect bituminous concrete pavement layer one side of keeping away from waterproof concrete layer, and the bituminous concrete pavement layer of steel sheet top still can take place to slide to form shear stress in bituminous concrete pavement in situ, the possibility of damaging the concrete pavement layer exists, in order to improve this defect, this application provides a steel bridge deck pavement structure.
The application provides a pair of steel bridge deck pavement structure adopts following technical scheme to obtain:
the utility model provides a steel bridge deck pavement structure, includes steel bridge deck board, cement concrete layer and asphalt concrete layer, cement concrete layer lays in steel bridge deck board top, asphalt concrete layer lays in cement concrete layer top, cement concrete layer and asphalt concrete layer laminating, the equal fixedly connected with steel sheet in steel bridge deck board both sides, the one end and the steel bridge deck board fixed connection of steel sheet, the other end are worn to establish cement concrete layer stretches in the asphalt concrete layer, one side fixedly connected with wedge of steel sheet orientation asphalt concrete layer, the inclined plane of wedge is towards asphalt concrete layer slope from bottom to top, asphalt concrete layer is worn to establish in the bottom of wedge to bury underground in the cement concrete layer, the top of wedge and asphalt concrete layer's surface parallel and level.
Through the technical scheme, when the steel bridge deck derusting machine works, an operator firstly derusts the steel bridge deck, then lays a cement concrete layer on the steel bridge deck, and buries one end, close to the steel bridge deck, of the steel plate in the cement concrete layer. After the cement concrete layer reaches the age of 28 days, the constructor lays an asphalt concrete layer above the cement concrete layer, and buries one end of the steel plate far away from the steel bridge deck and the wedge-shaped block in the asphalt concrete layer. When the asphalt concrete layer slides, the asphalt concrete layer is abutted against the inclined surface of the wedge-shaped block and horizontally pushes the wedge-shaped block. The wedge is in restriction bituminous concrete layer horizontal migration, still exert reaction force through the slope to bituminous concrete layer, support bituminous concrete layer tightly on cement concrete layer, thereby increase the frictional force between bituminous concrete layer and the cement concrete layer, further carry on spacingly to bituminous concrete layer, the possibility that bituminous concrete layer takes place to slide has been reduced, because the inclined plane top-down of wedge runs through whole bituminous concrete layer, consequently, the possibility that produces shear stress in the bituminous concrete layer has been reduced, thereby reduced the risk that shear stress led to the fact the damage to bituminous concrete layer.
Preferably: the concrete bridge is characterized in that a first reinforcing rib is embedded in the cement concrete layer, a second reinforcing rib is embedded in the asphalt concrete layer, the second reinforcing rib is fixedly connected with the first reinforcing rib, and the first reinforcing rib is fixedly connected with the steel bridge deck.
Through above-mentioned technical scheme, when cement concrete layer and asphalt concrete layer received external pulling force effect, first strengthening rib can replace cement concrete layer to bear the pulling force, and the second strengthening rib can replace asphalt concrete layer to bear the pulling force to promote cement concrete layer and asphalt concrete layer's tensile strength. The first strengthening rib, second strengthening rib and steel bridge deck plate three's rigidity, the second strengthening rib restricts asphalt concrete layer's removal, has further reduced the possibility that asphalt concrete layer takes place to slide.
Preferably: and epoxy resin coatings are coated on the surfaces of the steel bridge deck, the steel plate, the wedge-shaped block, the first reinforcing rib and the second reinforcing rib.
Through above-mentioned technical scheme, the epoxy coating covers the surface of steel bridge deck slab, steel sheet, wedge, first strengthening rib and second strengthening rib, and the epoxy coating has extremely strong chemical resistance, has reduced the ion in the rainwater and has permeated cement concrete layer and asphalt concrete in situ after, causes the possibility of corruption to steel bridge deck slab, steel sheet, wedge, first strengthening rib and second strengthening rib.
Preferably: and the first reinforcing rib and the second reinforcing rib are both set to be ribbed steel bars.
Through above-mentioned technical scheme, ribbed steel bar can increase frictional force, reduces the possibility that relative slip takes place for first strengthening rib and cement concrete layer, reduces the possibility that relative slip takes place for second strengthening rib and asphalt concrete layer.
Preferably: the first reinforcing rib is fixedly connected with the steel plate.
Through above-mentioned technical scheme, first strengthening rib can support the steel sheet, promotes the steel sheet when reducing asphalt concrete layer and taking place to slide, makes the steel sheet take place the possibility of skew.
Preferably: the asphalt concrete layer is set as a water-permeable asphalt concrete layer, the cement concrete layer is set as a waterproof concrete layer, a water outlet is formed in the steel plate, and the waterproof concrete layer and the water-permeable asphalt concrete layer are intersected with the water outlet.
Through above-mentioned technical scheme, during rainy day, the rainwater sees through the water permeability asphalt concrete layer and flows to waterproof concrete layer surface to flow away through the outlet, reduced the possibility that the vehicle skidded that the accumulational rainwater caused on the road surface, the security when having increased the vehicle and having traveled on the steel bridge face.
Preferably: the waterproof concrete layer is arranged to be a convex surface towards one side of the water-permeable asphalt concrete layer, and the water-permeable asphalt concrete layer is arranged to be a concave surface towards one side of the waterproof concrete layer.
Through the technical scheme, rainwater flows to the surface of the waterproof concrete layer, flows to the two sides of the waterproof concrete layer along the convex surface of the waterproof concrete layer, and reduces the detention time of water in the water-permeable asphalt concrete layer, so that the drainage efficiency is improved.
Preferably: the outlet sets up towards the one side downward sloping of keeping away from water permeability asphalt concrete layer.
Through above-mentioned technical scheme, the outlet that the slope set up has reduced the rainwater and has gathered the possibility in outlet department, has further improved drainage efficiency.
Preferably: a plurality of porous ceramsite are embedded in the cement concrete layer.
Through the technical scheme, during work, constructors fully absorb water in the porous ceramsite and bury the porous ceramsite in the cement concrete layer, the cement concrete layer gradually consumes water in the hardening process, and when the water content in the cement concrete layer is lower than that of the porous ceramsite, the porous ceramsite releases water into the cement concrete layer, so that the possibility of influence on the hardening of the cement concrete layer due to lack of water is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the asphalt concrete layer slides, the wedge block directly limits the asphalt concrete layer, and can apply a reaction force to the asphalt concrete layer through the inclined surface, so that the asphalt concrete layer is tightly supported on the cement concrete layer, the friction force between the asphalt concrete layer and the cement concrete layer is increased, and the limiting effect on the asphalt concrete layer is further improved. The wedge-shaped block penetrates through the asphalt concrete layer from top to bottom, so that the possibility of generating shear stress in the asphalt concrete layer is reduced, and the risk of damage to the asphalt concrete layer caused by the shear stress is reduced;
2. establish into waterproof concrete layer through establishing cement concrete layer, establish into water permeability asphalt concrete layer with asphalt concrete layer, still set up the outlet simultaneously on the steel sheet for the rainwater will ooze through water permeability asphalt concrete layer when rainy day, and blockked by waterproof concrete layer, finally discharge from the outlet, reduced the possibility that the vehicle skidded that the accumulated rainwater caused on the road surface, increased the security of vehicle when traveling on the steel bridge face.
Drawings
Fig. 1 is a schematic overall structure diagram of a steel bridge deck pavement structure according to an embodiment of the present application.
Fig. 2 is an internal structure schematic diagram of the steel deck pavement structure according to the embodiment of the application.
FIG. 3 is a cross-sectional view of a steel deck pavement structure according to an embodiment of the present application
FIG. 4 is an enlarged view of portion A of FIG. 3
Reference numerals: 1. a steel deck plate; 2. a cement concrete layer; 3. an asphalt concrete layer; 4. porous ceramsite; 5. a steel plate; 6. a wedge block; 7. a first reinforcing rib; 8. a second reinforcing rib; 9. an epoxy resin coating; 10. and a water outlet.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses steel bridge deck pavement structure. Referring to fig. 1 and 2, the steel bridge deck pavement structure includes steel bridge deck slab 1, cement concrete layer 2 and asphalt concrete layer 3, and cement concrete layer 2 is established to waterproof concrete layer, and asphalt concrete layer 3 is established to the permeability asphalt concrete layer. The cement concrete layer 2 is laid on the steel bridge deck slab 1, a plurality of porous ceramsite 4 are embedded inside the cement concrete layer 2, and the asphalt concrete layer 3 is laid on the cement concrete layer 2. Equal fixedly connected with steel sheet 5 in 1 both sides of steel bridge deck slab, the one end fixed connection of steel sheet 5 is on steel bridge deck slab 1, and other end fixedly connected with wedge 6, the material of wedge 6 is steel. The top of wedge 6 and bituminous concrete layer 3's surface parallel and level, the inclined plane top-down of wedge 6 deviates from bituminous concrete layer 3 and sets up to extend to in cement concrete layer 2.
Referring to fig. 1 and 2, a plurality of first reinforcing ribs 7 are fixedly connected to the steel bridge deck 1, a plurality of second reinforcing ribs 8 are fixedly connected to the first reinforcing ribs 7, and the first reinforcing ribs 7 and the second reinforcing ribs 8 are arranged in a criss-cross manner. The first reinforcing rib 7 and the second reinforcing rib 8 are both made of ribbed steel bars, and the first reinforcing rib 7 and the second reinforcing rib 8 are both connected with the steel plate 5 in a welded mode. The first reinforcing rib 7 is embedded in the cement concrete layer 2, one end of the second reinforcing rib 8 close to the steel bridge deck plate 1 is embedded in the cement concrete layer 2, and one end far away from the steel bridge deck plate 1 is embedded in the asphalt concrete layer 3. The surfaces of the steel bridge deck 1, the steel plate 5, the wedge-shaped block 6, the first reinforcing rib 7 and the second reinforcing rib 8 are all covered with epoxy resin coatings 9.
Referring to fig. 1 and 2, during construction, a constructor firstly performs sand blasting and rust removal on a steel bridge deck 1 to make the steel bridge deck 1 smoother, then lays a cement concrete layer 2 on the steel bridge deck 1 until the cement concrete layer 2 wraps a first reinforcing rib 7, and wraps one end of a steel plate 5, which is close to the steel bridge deck 1, and one end of a second reinforcing rib 8, which is close to the first reinforcing rib 7. When the cement concrete layer 2 is laid, an operator buries the porous ceramsite 4 into the cement concrete layer 2 after absorbing water, the porous ceramsite 4 can slowly release water in the hardening process of the cement concrete layer 2, and the possibility that the strength development of the cement concrete layer 2 is affected due to water shortage is reduced. After the cement concrete layer 2 reaches the age of 28 days and has certain strength, the constructor lays the asphalt concrete layer 3 on the cement concrete layer 2 until the asphalt concrete layer 3 is flush with the top end of the wedge-shaped block 6. At this time, the operator performs the laying by a cold laying method to reduce the possibility that the temperature affects the epoxy resin coating 9.
Referring to fig. 1 and 2, when the asphalt concrete layer 3 slips, the asphalt concrete layer 3 extrudes the inclined surface of the wedge-shaped block 6, the wedge-shaped block 6 limits the movement of the asphalt concrete layer 3 through the inclined surface, and applies a reaction force to the asphalt concrete layer 3 through the inclined surface, so that the asphalt concrete layer 3 is tightly abutted on the cement concrete layer 2, the friction force between the asphalt concrete layer 3 and the cement concrete layer 2 is increased, and the possibility of slipping of the asphalt concrete layer 3 is reduced. Because the wedge-shaped block 6 penetrates the asphalt concrete layer 3, the possibility of generating shear stress in the asphalt concrete layer 3 is reduced, and the risk of damage of the asphalt concrete layer 3 caused by the shear stress is reduced. Because the material of second strengthening rib 8 is ribbed steel bar, consequently increased the cohesion between with asphalt concrete layer 3, further reduced asphalt concrete layer 3 and taken place the possibility that slides.
Referring to fig. 1 and 2, when the asphalt concrete layer 3 is under the action of external tension, the second reinforcing ribs 8 can replace the asphalt concrete layer 3 to bear a part of tension, so that the tensile capacity of the asphalt concrete layer 3 is increased, and the first reinforcing ribs 7 and the second reinforcing ribs 8 play the same role. Epoxy coating 9 can keep apart harmful ion in steel bridge deck slab 1, steel sheet 5, wedge 6, first strengthening rib 7 and the second strengthening rib 8 and the environment, reduce the ion infiltration in the environment and to steel bridge deck slab 1, steel sheet 5, wedge 6, near the possibility of first strengthening rib 7 and second strengthening rib 8 to steel bridge deck slab 1 has been reduced, steel sheet 5, wedge 6, the risk of corrosion takes place for first strengthening rib 7 and second strengthening rib 8 under harmful ion's effect.
Referring to fig. 3 and 4, one side of the waterproof concrete layer close to the asphalt concrete layer 3 is set as a convex surface, one side of the asphalt concrete layer 3 close to the cement concrete layer 2 is set as a concave surface, a water outlet 10 is formed in the steel plate 5, the water outlet 10 is inclined downwards towards one side of the asphalt concrete layer 3 far away from the water permeability, and the cement concrete layer 2 and the asphalt concrete layer 3 are intersected with the water outlet 10. In rainy days, rainwater seeps down through the asphalt concrete layer 3, then is blocked by the cement concrete layer 2, flows to the two sides of the cement concrete layer 2 along the convex surface of the cement concrete layer 2, and is finally discharged from the water outlet 10. Asphalt concrete layer 3 has the water permeability, so has reduced the possibility that rainwater gathers on the road surface, has reduced the risk that the passing vehicle takes place to skid. The convex surface of the cement concrete layer 2 increases the rainwater gathering speed, the inclined water outlet 10 reduces the possibility that rainwater stays at the water outlet 10, the rainwater draining speed is increased, and the water draining efficiency is improved.
The implementation principle of the steel bridge deck pavement structure of the embodiment of the application is as follows: during operation, constructor carries out the sandblast rust cleaning to steel bridge panel 1 earlier, then lays cement concrete layer 2 on steel bridge panel 1 to set up the one side of keeping away from steel bridge panel 1 on cement concrete layer 2 into the convex surface. When the cement concrete layer 2 is laid, a constructor fully absorbs the porous ceramsite 4, so that the porous ceramsite 4 can provide moisture for the cement concrete layer 2 in the hardening process of the cement concrete layer 2, and the possibility that the hardening process of the cement concrete layer 2 is affected due to the lack of moisture is reduced. After the cement concrete layer 2 reaches the age of 28 days, the constructor adopts a cold paving method to pave the asphalt concrete layer 3 on the cement concrete layer 2.
When the asphalt concrete layer 3 is about to slide, the wedge-shaped block 6 and the first reinforcing rib 7 can limit the asphalt concrete layer 3, so that the possibility of sliding of the asphalt concrete layer 3 is reduced. The wedge-shaped blocks 6 penetrate through the asphalt concrete layer 3 from top to bottom, so that the possibility of shear stress in the asphalt concrete layer 3 is reduced, and the risk of damage to the asphalt concrete layer 3 under the action of the shear stress is reduced. During rainy day, the rainwater sees through asphalt concrete layer 3 to along cement concrete layer 2's convex surface gathering in cement concrete layer 2's both sides, finally discharge through outlet 10, reduced because of surface gathered water makes the possibility of passing vehicle skid, reduced the risk of occurence accident.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The utility model provides a steel bridge deck pavement structure which characterized in that: including steel decking (1), cement concrete layer (2) and asphalt concrete layer (3), cement concrete layer (2) are laid in steel decking (1) top, asphalt concrete layer (3) are laid in cement concrete layer (2) top, cement concrete layer (2) and asphalt concrete layer (3) laminating, the equal fixedly connected with steel sheet (5) in steel decking (1) both sides, the one end and steel decking (1) fixed connection of steel sheet (5), the other end are worn to establish cement concrete layer (2), stretch in asphalt concrete layer (3), steel sheet (5) are towards one side fixedly connected with wedge (6) of asphalt concrete layer (3), the inclined plane of wedge (6) is towards asphalt concrete layer (3) slope from bottom to top, asphalt concrete layer (3) are worn to establish to the bottom of wedge (6), and the wedge-shaped blocks are embedded in the cement concrete layer (2), and the top ends of the wedge-shaped blocks (6) are flush with the surface of the asphalt concrete layer (3).
2. The steel deck pavement structure according to claim 1, wherein: first strengthening rib (7) have been buried underground in cement concrete layer (2), second strengthening rib (8) have been buried underground in asphalt concrete layer (3), second strengthening rib (8) and first strengthening rib (7) fixed connection, first strengthening rib (7) and steel bridge panel (1) fixed connection.
3. The steel deck pavement structure according to claim 2, wherein: the surface of the steel bridge deck (1), the steel plate (5), the wedge-shaped block (6), the first reinforcing rib (7) and the second reinforcing rib (8) are coated with epoxy resin coatings (9).
4. The steel deck pavement structure according to claim 2, wherein: and the first reinforcing rib (7) and the second reinforcing rib (8) are both set to be ribbed steel bars.
5. The steel deck pavement structure according to claim 2, wherein: the first reinforcing rib (7) is fixedly connected with the steel plate (5).
6. The steel deck pavement structure according to claim 1, wherein: the asphalt concrete layer (3) is established to the water permeability asphalt concrete layer, cement concrete layer (2) is established to waterproof concrete layer, outlet (10) have been seted up on steel sheet (5), waterproof concrete layer and water permeability asphalt concrete layer all intersect with outlet (10).
7. The steel deck pavement structure according to claim 6, wherein: the waterproof concrete layer is arranged to be a convex surface towards one side of the water-permeable asphalt concrete layer, and the water-permeable asphalt concrete layer is arranged to be a concave surface towards one side of the waterproof concrete layer.
8. The steel deck pavement structure according to claim 6, wherein: the water outlet (10) is arranged towards one side far away from the water-permeable asphalt concrete layer in a downward inclined mode.
9. The steel deck pavement structure according to claim 1, wherein: a plurality of porous ceramsite (4) are embedded in the cement concrete layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023120362.4U CN214143297U (en) | 2020-12-22 | 2020-12-22 | Steel bridge deck pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023120362.4U CN214143297U (en) | 2020-12-22 | 2020-12-22 | Steel bridge deck pavement structure |
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| Publication Number | Publication Date |
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| CN214143297U true CN214143297U (en) | 2021-09-07 |
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| CN202023120362.4U Active CN214143297U (en) | 2020-12-22 | 2020-12-22 | Steel bridge deck pavement structure |
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| CN (1) | CN214143297U (en) |
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- 2020-12-22 CN CN202023120362.4U patent/CN214143297U/en active Active
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