CN209798521U - Bridge expansion joint protection architecture - Google Patents
Bridge expansion joint protection architecture Download PDFInfo
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- CN209798521U CN209798521U CN201920223324.XU CN201920223324U CN209798521U CN 209798521 U CN209798521 U CN 209798521U CN 201920223324 U CN201920223324 U CN 201920223324U CN 209798521 U CN209798521 U CN 209798521U
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Abstract
The utility model discloses a bridge expansion joint protection structure, belonging to the technical field of building structures, comprising a reinforced concrete layer which is arranged at the upper part of the expansion joint between adjacent bridge beams and seals the upper opening of the expansion joint; notches are symmetrically arranged at the connecting positions of the adjacent bridge bodies, a groove is formed after the notches are butted, and reinforced concrete is poured in the groove to form a reinforced concrete layer; the top surface of the reinforced concrete layer is flush with the top surface of the bridge body, and a waterproof layer and an asphalt layer are sequentially paved on the reinforced concrete layer and the upper part of the bridge body from bottom to top; and anchoring steel bars and stirrups are arranged in the reinforced concrete layer, and the stirrups are implanted into the bridge body. The utility model discloses consolidate concrete layer not only make the expansion joint avoid with the direct collision friction of vehicle, possess good stagnant water function moreover to effectively prevent because bridge floor leaks the bridge expansion joint concrete member salt damage degradation that leads to, guaranteed the whole quality at expansion joint, improved its impermeability and durability greatly.
Description
Technical Field
The utility model relates to a building structure technical field especially relates to a bridge expansion joint protection architecture.
Background
In order to meet the requirement of bridge deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The damage of the bridge expansion joint protection structure is mainly caused by impact, noise and main body damage when a vehicle runs, and water leakage caused by the reduction of the water stopping and draining functions of the bridge. In the area where the antifreeze is spread, since the leakage water contains salt, deterioration by salt damage occurs in the concrete member around the joint. The expansion joint is a component repeatedly repaired during the use as an attachment of the bridge, but the expansion joint has a great influence on vehicles due to traffic restrictions of maintenance cost and construction amount, and becomes a difficult problem in maintenance and management of the road bridge.
Therefore, the market needs a bridge expansion joint protection structure which can effectively resist the impact damage of vehicles, has good durability and water stopping performance and is low in maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bridge expansion joint protection architecture to solve the problem that above-mentioned prior art exists, make the expansion joint can resist the impact damage of vehicle, durability and stagnant water nature are good, and the maintenance cost is low.
In order to achieve the above object, the utility model provides a following scheme:
The utility model provides a bridge expansion joint protection structure, which comprises a reinforced concrete layer, wherein the reinforced concrete layer is arranged at the upper part of the expansion joint between adjacent bridge beams and seals the upper opening of the expansion joint; notches are symmetrically arranged at the connecting positions of adjacent bridge bodies, a groove is formed after the notches are butted, and reinforced concrete is poured in the groove to form a reinforced concrete layer; the top surface of the reinforced concrete layer is flush with the top surface of the bridge body, and a waterproof layer and an asphalt layer are sequentially paved on the reinforced concrete layer and the upper part of the bridge body from bottom to top; and the reinforced concrete layer is internally provided with anchoring steel bars and stirrups, and the stirrups are implanted into the bridge body.
Optionally, a composite concrete adhesive layer is further disposed between the reinforced concrete layer and the bridge beam body.
Optionally, the reinforced concrete layer is a fiber reinforced concrete layer.
Optionally, a foam board is further arranged, and the foam board is arranged in the expansion joint below the reinforced concrete layer and used for filling the expansion joint.
Optionally, the reinforced concrete layer has a rectangular cross section, and the reinforced concrete layer has a width of 600mm and a thickness of 100 mm.
Optionally, the anchoring reinforcing bars are arranged along the transverse bridge direction and uniformly distributed on the same horizontal plane along the bridge direction.
Optionally, 4 anchoring bars are provided.
Optionally, the stirrup is an L-shaped steel bar, one end of the stirrup is vertically implanted into a steel bar notch reserved in the bridge body, the other end of the stirrup is horizontally lapped on the upper portion of the anchoring steel bar along the bridge direction, and the stirrup is symmetrically arranged on the adjacent bridge body by using the center plane of the expansion joint to form an inverted U-shaped structure.
Optionally, the stirrups are uniformly distributed in the transverse bridge direction, and the distance between every two adjacent stirrups is 150 ± 50 mm.
The utility model discloses for prior art gain following technological effect:
The utility model discloses a set up reinforced concrete layer on bridge expansion joint upper portion to at the inside atress reinforcing bar that sets up of reinforced concrete layer, not only make the expansion joint avoid with the direct collision friction of vehicle, possess good stagnant water function moreover, thereby effectively prevent because the bridge floor leaks the bridge expansion joint concrete member salt damage degradation that leads to, guaranteed the whole quality at expansion joint, improved its impermeability and durability greatly.
The composite concrete adhesive is arranged between the reinforced concrete layer and the bridge body, so that the adhesive force between the reinforced concrete layer and the bridge body can be effectively improved, and the water stopping effect is further improved.
the reinforced concrete layer is a fiber reinforced concrete layer, and the fiber concrete has good tensile, bending, impact and fatigue resistance performances and good ductility, so that the expansion joint is effectively protected from being damaged by vehicles.
The expansion joint is filled with the foam board, so that the reinforced concrete layer and the composite concrete adhesive can be effectively prevented from being exposed in the air and being corroded and damaged.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a cross section along the bridge direction of the protection structure for a bridge expansion joint provided by the present invention;
Fig. 2 is the utility model provides a bridge expansion joint protection architecture's transversal bridge is to section view.
In the figure: 1-bridge beam body; 2-reinforcing the concrete layer; 3-anchoring the steel bar; 4-stirrup; 5-a foam board; 6-waterproof layer; 7-an asphalt layer; 8-composite concrete adhesive 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a bridge expansion joint protection architecture to solve the problem that prior art exists, make the expansion joint can resist the impact damage of vehicle, durability and stagnant water nature are good, and the maintenance cost is low.
The utility model provides a bridge expansion joint protection structure, which comprises a reinforced concrete layer, wherein the reinforced concrete layer is arranged at the upper part of the expansion joint between adjacent bridge beams and seals the upper opening of the expansion joint; notches are symmetrically arranged at the connecting positions of the adjacent bridge bodies, a groove is formed after the notches are butted, and reinforced concrete is poured in the groove to form a reinforced concrete layer; the top surface of the reinforced concrete layer is flush with the top surface of the bridge body, and a waterproof layer and an asphalt layer are sequentially paved on the reinforced concrete layer and the upper part of the bridge body from bottom to top; and anchoring steel bars and stirrups are arranged in the reinforced concrete layer, and the stirrups are implanted into the bridge body.
The utility model discloses a set up reinforced concrete layer on bridge expansion joint upper portion to at the inside atress reinforcing bar that sets up of reinforced concrete layer, not only make the expansion joint avoid with the direct collision friction of vehicle, possess good stagnant water function moreover, thereby effectively prevent because the bridge floor leaks the bridge expansion joint concrete member salt damage degradation that leads to, guaranteed the whole quality at expansion joint, improved its impermeability and durability greatly.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-2, the bridge expansion joint protection structure provided by the present invention comprises a reinforced concrete layer 2, wherein the reinforced concrete layer 2 is disposed at the upper part of the expansion joint between the adjacent bridge beams 1 and seals the upper opening of the expansion joint; notches are symmetrically arranged at the connecting positions of the adjacent bridge beams 1, a groove is formed after the notches are butted, and reinforced concrete is poured in the groove to form a reinforced concrete layer 2; the top surface of the reinforced concrete layer 2 is flush with the top surface of the bridge beam body 1, and a waterproof layer 6 and an asphalt layer 7 are sequentially paved on the reinforced concrete layer 2 and the upper part of the bridge beam body 1 from bottom to top; the reinforced concrete layer 2 is internally provided with anchoring steel bars 3 and stirrups 4, and the stirrups 4 are implanted into the bridge body 1.
The groove can be reserved in the prefabricating process of the bridge body 1, or chiseling can be carried out on site, during construction, a formwork is firstly erected in the groove, the anchoring steel bars 3 and the stirrups 4 are bound, in the binding process, the stirrups 4 and the bridge body 1 are reliably connected, then reinforced concrete is poured, and the reinforced concrete is cured after being poured to be flush with the top surface of the bridge body 1, so that a reinforced concrete layer 2 is formed; and finally, paving the waterproof layer 6 and the asphalt layer 7 in sequence.
Further, still be provided with compound concrete adhesive layer 8 between reinforced concrete layer 2 and the bridge roof beam body 1, can effectively improve the adhesive force between reinforced concrete layer 2 and the bridge roof beam body 1, further improved stagnant water effect simultaneously.
Further, the reinforced concrete layer 2 is a fiber reinforced concrete layer; the fiber concrete has good tensile, bending, impact and fatigue resistance performances and good ductility, so that the expansion joint is effectively protected from being damaged by vehicles.
Furthermore, a foam plate 5 is also arranged, and the foam plate 5 is arranged in the expansion joint below the reinforced concrete layer 2 and fills the expansion joint; the foam board 5 isolates the reinforced concrete layer 2 and the composite concrete adhesive layer 8 from the atmosphere, so that the reinforced concrete layer 2 and the composite concrete adhesive layer 8 can be effectively prevented from being corroded and damaged.
Further, the cross section of the reinforced concrete layer 2 is rectangular, the width of the reinforced concrete layer 2 is 600mm, and the thickness of the reinforced concrete layer is 100 mm.
Further, the anchoring reinforcing steel bars 3 are arranged along the transverse bridge direction and are uniformly distributed on the same horizontal plane along the bridge direction.
Further, 4 anchoring bars 3 are provided.
Further, stirrup 4 is L shape reinforcing bar, and 4 vertical implantation bridge roof beam bodies of stirrup one end are in the reinforcing bar notch that 1 reserves, and the other end is along following the bridge to horizontal overlap joint on 3 upper portions of anchor reinforcing bar, and stirrup 4 sets up with expansion joint central plane symmetry on adjacent bridge roof beam bodies 1, constitutes the structure of falling the U-shaped.
Furthermore, the stirrups 4 are uniformly distributed in the transverse bridge direction, and the distance between every two adjacent stirrups 4 is 150 +/-50 mm.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. The utility model provides a bridge expansion joint protection architecture which characterized in that: the reinforced concrete layer is arranged at the upper part of an expansion joint between adjacent bridge bodies and seals the upper opening of the expansion joint; notches are symmetrically arranged at the connecting positions of adjacent bridge bodies, a groove is formed after the notches are butted, and reinforced concrete is poured in the groove to form a reinforced concrete layer; the top surface of the reinforced concrete layer is flush with the top surface of the bridge body, and a waterproof layer and an asphalt layer are sequentially paved on the reinforced concrete layer and the upper part of the bridge body from bottom to top; and the reinforced concrete layer is internally provided with anchoring steel bars and stirrups, and the stirrups are implanted into the bridge body.
2. The bridge expansion joint protection structure of claim 1, wherein: and a composite concrete adhesive layer is also arranged between the reinforced concrete layer and the bridge body.
3. The bridge expansion joint protection structure of claim 1, wherein: the reinforced concrete layer is a fiber reinforced concrete layer.
4. The bridge expansion joint protection structure of claim 1, wherein: the concrete layer is arranged on the reinforced concrete layer, and the expansion joint is filled with foam boards.
5. the bridge expansion joint protection structure of claim 1, wherein: the cross-section of the reinforced concrete layer is rectangular, the width of the reinforced concrete layer is 600mm, and the thickness of the reinforced concrete layer is 100 mm.
6. The bridge expansion joint protection structure of claim 1, wherein: the anchoring reinforcing steel bars are arranged along the transverse bridge direction and are uniformly distributed on the same horizontal plane along the bridge direction.
7. The bridge expansion joint protection structure of claim 6, wherein: the anchoring reinforcing steel bars are provided with 4 pieces.
8. The bridge expansion joint protection structure of claim 1, wherein: the stirrup is L-shaped steel bars, one end of the stirrup is vertically implanted into a steel bar notch reserved in the bridge body, the other end of the stirrup is horizontally lapped on the upper part of the anchoring steel bar along the bridge direction, and the stirrup is symmetrically arranged on the adjacent bridge body by using the center plane of the expansion joint to form an inverted U-shaped structure.
9. The bridge expansion joint protection structure of claim 1, wherein: the stirrups are uniformly distributed in the transverse bridge direction, and the distance between every two adjacent stirrups is 150 +/-50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223324.XU CN209798521U (en) | 2019-02-22 | 2019-02-22 | Bridge expansion joint protection architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223324.XU CN209798521U (en) | 2019-02-22 | 2019-02-22 | Bridge expansion joint protection architecture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209798521U true CN209798521U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920223324.XU Active CN209798521U (en) | 2019-02-22 | 2019-02-22 | Bridge expansion joint protection architecture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209798521U (en) |
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2019
- 2019-02-22 CN CN201920223324.XU patent/CN209798521U/en active Active
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