Bridge prefabricated part assembling structure

Abstract

The utility model relates to the field of bridge construction, in particular to a bridge prefabricated part splicing structure which comprises a cover beam, a box beam and a bonding layer, one side of the bonding layer is fixedly connected to the upper end of the cover beam, the other side of the bonding layer is fixedly connected to the lower end of the box beam, and the material of the bonding layer is ultra-high strength UHPC. The compressive strength of the UHPC can reach 200 MPa or above, the tensile strength can reach 30 MPa or above and is far better than that of common concrete, the UHPC is used as the bonding material, the structural strength of the cover beam and the box beam is improved, welding is not needed, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of bridge construction, and in particular to a prefabricated bridge component assembly structure. Background Art

[0002] Prefabricated bridge components are prefabricated in a factory and subsequently assembled into bridge components. They are widely used in bridge construction due to their reliable quality, high construction efficiency, cost savings, environmental friendliness, energy efficiency, and safety.

[0003] Existing prefabricated bridge components mainly include piers, cap beams and box beams. Cap beams and box beams are generally assembled by welding. During the processing, the welding quality is affected by many factors and is difficult to control. The welding assembly requires a long construction period and the construction efficiency is low. Utility Model Content

[0004] In order to improve construction efficiency, the present application provides a bridge prefabricated component assembly structure.

[0005] The present application provides a bridge prefabricated component assembly structure that adopts the following technical solution:

[0006] A bridge prefabricated component assembly structure includes a cap beam, a box beam and an adhesive layer, one side of the adhesive layer is fixedly connected to the upper end of the cap beam, and the other side of the adhesive layer is fixedly connected to the lower end of the box beam. The material of the adhesive layer is set to be ultra-high strength UHPC.

[0007] By adopting the above technical solutions, the compressive strength of UHPC can reach over 200MPa and the tensile strength can reach over 30MPa, which are far superior to ordinary concrete. Using UHPC as a bonding material improves the structural strength of the cap beam and box beam, eliminates the need for welding, and improves construction efficiency.

[0008] Preferably, the length direction of the cap beam is perpendicular to the length direction of the box beam, and a placement groove is provided at the upper end of the cap beam, and the length direction of the placement groove is parallel to the length direction of the cap beam. There are two placement grooves, and the two placement grooves are respectively close to the two ends of the cap beam in the width direction. A protrusion is formed between the two placement grooves, and the placement groove extends in a direction away from the protrusion to pass through the cap beam, and both ends of the box beam abut the protrusion, and the adhesive layer is connected to the bottom of the placement groove.

[0009] By adopting the above technical solution, the placement groove limits the installation of the box girder, making the box girder easier to install and improving the installation efficiency of the box girder.

[0010] Preferably, it also includes a first limit bar and a second limit bar, the first limit bar and the second limit bar are both fixedly connected to the bottom of the placement groove, the length directions of the first limit bar and the second limit bar are parallel to the length direction of the box beam, and an installation groove is provided between the first limit bar and the second limit bar, and the adhesive layer is provided in the installation groove.

[0011] By adopting the above technical solution, the first limiting strip and the second limiting strip limit the installation of the box girder, making the box girder easier to install and improving the installation efficiency of the box girder.

[0012] Preferably, the bottom of the placement groove is provided with a first sliding groove and a second sliding groove, the length directions of the first sliding groove and the second sliding groove are parallel to the length direction of the box beam, the first sliding groove and the second sliding groove extend in the direction away from the protrusion to pass through the cap beam, the first limit bar is slidably embedded in the first sliding groove, and the second limit bar is slidably embedded in the second sliding groove.

[0013] By adopting the above technical solution, the first sliding groove limits the installation of the first limiting strip, which is convenient for positioning and installing the first limiting strip, and the second sliding groove limits the installation of the second limiting strip, which is convenient for positioning and installing the second limiting strip.

[0014] Preferably, the groove wall of the first sliding groove is provided with a first anti-slip groove, the length direction of the first anti-slip groove is parallel to the length direction of the first sliding groove, the length of the first anti-slip groove is equal to the length of the first sliding groove, and the outer wall of the first limiting strip is fixedly connected with a first anti-slip block, and the first anti-slip block is slidably embedded in the first anti-slip groove.

[0015] By adopting the above technical solution, the first anti-slip groove makes it difficult for the first limiting strip to slip out of the first sliding groove, thereby facilitating the fixing of the first limiting strip and improving construction efficiency.

[0016] Preferably, it further comprises a gasket connected to the bottom of the installation groove.

[0017] By adopting the above technical solution, the gasket can act as a buffer between ultra-high-strength UHPC and other structures or equipment, alleviating the impact forces caused by factors such as temperature changes, vibrations or external loads, and preventing these impact forces from being directly transmitted to the ultra-high-strength UHPC structure, thereby protecting the bonding surface from damage. By reducing impact and vibration, the gasket helps to extend the service life of the ultra-high-strength UHPC structure and improve its durability.

[0018] Preferably, it also includes a first connecting belt and a second connecting belt, one end of the first connecting belt is fixedly connected to the first limiting strip, the other end of the first connecting belt is fixedly connected to the gasket, one end of the second connecting belt is fixedly connected to the second limiting strip, and the other end of the second connecting belt is fixedly connected to the gasket.

[0019] By adopting the above technical solution, the first connecting strip and the second connecting strip facilitate fixing the gasket, so that the gasket is placed in the correct position, thereby improving construction efficiency.

[0020] Preferably, the bottom of the installation groove is provided with a plurality of grooves by roughening.

[0021] By adopting the above technical solution, the groove increases the contact area between the adhesive layer and the cap beam, and improves the structural strength of the connection between the cap beam and the box beam.

[0022] Preferably, the upper surface of the cap beam is flush with the upper surface of the box beam.

[0023] By adopting the above technical solution, the cap beam and box beam can jointly bear the bridge deck pressure, thereby improving the structural strength.

[0024] Preferably, there are multiple box beams, and the multiple box beams are evenly spaced along the length direction of the cap beam.

[0025] By adopting the above technical solution, multiple box girders are evenly stressed and less susceptible to damage, thus extending the service life of the bridge.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. UHPC's compressive strength can reach over 200 MPa, and its tensile strength can reach over 30 MPa, far exceeding that of ordinary concrete. Using UHPC as a bonding material improves the structural strength of the cap beam and box beam, eliminating the need for welding and improving construction efficiency.

[0028] 2. The first sliding groove limits the installation of the first limiting strip, facilitating the positioning and installation of the first limiting strip, and the second sliding groove limits the installation of the second limiting strip, facilitating the positioning and installation of the second limiting strip;

[0029] 3. The first connecting strip and the second connecting strip facilitate fixing the gasket, so that the gasket is placed in the correct position, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a bridge prefabricated component assembly structure.

[0031] Figure 2 It is a cross-sectional view of the assembled structure of prefabricated bridge components.

[0032] Explanation of the accompanying drawings: 1. Cap beam; 11. Placement groove; 111. First sliding groove; 1111. First anti-slip groove; 112. Second sliding groove; 1121. Second anti-slip groove; 12. Protrusion; 2. Box beam; 3. First limiting strip; 31. First anti-slip block; 32. Installation groove; 321. Groove; 4. Second limiting strip; 41. Second anti-slip block; 5. First connecting belt; 6. Second connecting belt; 7. Gasket; 8. Adhesive layer. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] The embodiment of the present application discloses a prefabricated bridge component assembly structure. Figure 1 and Figure 2 A bridge prefabricated component assembly structure includes a cap beam 1, a box beam 2, a first limiting strip 3, a second limiting strip 4, a first connecting strip 5, a second connecting strip 6, a gasket 7 and an adhesive layer 8.

[0035] Reference Figure 1 The lower end of the cap beam 1 is used to be fixedly connected to the upper end of the pier. The length direction of the cap beam 1 is parallel to the width direction of the bridge. There are multiple cap beams 1, and the multiple cap beams 1 are evenly spaced along the length direction of the bridge.

[0036] A placement groove 11 is provided at the upper end of the cap beam 1. The length direction of the placement groove 11 is parallel to the length direction of the cap beam 1. There are two placement grooves 11. The two placement grooves 11 are respectively close to the two ends of the width direction of the cap beam 1. A protrusion 12 is formed between the two placement grooves 11. The placement groove 11 extends in a direction away from the protrusion 12 to pass through the cap beam 1.

[0037] The box beam 2 is provided between two adjacent cap beams 1, with the length direction of the box beam 2 being perpendicular to the length direction of the cap beam 1. Both ends of the box beam 2 abut against the protrusions 12, and the box beam 2 slides from top to bottom into the placement groove 11. There are multiple box beams 2, and the multiple box beams 2 are evenly spaced along the length direction of the cap beam 1.

[0038] Reference Figure 1 and Figure 2The bottom of the placement groove 11 is provided with a first sliding groove 111 and a second sliding groove 112. The length directions of the first sliding groove 111 and the second sliding groove 112 are parallel to the length direction of the box beam 2. The first sliding groove 111 and the second sliding groove 112 extend in the direction away from the protrusion 12 to pass through the cap beam 1. There are multiple first sliding grooves 111, and the multiple first sliding grooves 111 are evenly spaced along the length direction of the placement groove 11. There are multiple second sliding grooves 112, and the multiple second sliding grooves 112 are evenly spaced along the length direction of the placement groove 11. The number of second sliding grooves 112 is equal to the number of first sliding grooves 111, and a second sliding groove 112 is provided between the two first sliding grooves 111.

[0039] Reference Figure 2 The first limiting bar 3 slides and fits in the first sliding groove 111, and the second limiting bar 4 slides and fits in the second sliding groove 112. The length directions of the first limiting bar 3 and the second limiting bar 4 are parallel to the length direction of the box girder 2. A mounting groove 32 is provided between the first limiting bar 3 and the second limiting bar 4. The end of the first limiting bar 3 facing the mounting groove 32 is used to abut the box girder 2, and the end of the second limiting bar 4 facing the mounting groove 32 is used to abut the box girder 2.

[0040] The groove wall of the first sliding groove 111 is provided with a first anti-slip groove 1111, the length direction of the first anti-slip groove 1111 is parallel to the length direction of the first sliding groove 111, and the length of the first anti-slip groove 1111 is equal to the length of the first sliding groove 111. The outer wall of the first limiting strip 3 is fixedly connected to a first anti-slip block 31, and the first anti-slip block 31 is slidably embedded in the first anti-slip groove 1111. The groove wall of the second sliding groove 112 is provided with a second anti-slip groove 1121, the length direction of the second anti-slip groove 1121 is parallel to the length direction of the second sliding groove 112, and the length of the second anti-slip groove 1121 is equal to the length of the second sliding groove 112. The outer wall of the second limiting strip 4 is fixedly connected to a second anti-slip block 41, and the second anti-slip block 41 is slidably embedded in the second anti-slip groove 1121.

[0041] Reference Figure 1 The gasket 7 is disposed within the mounting groove 32. Multiple gaskets 7 are provided, one corresponding to each mounting groove 32. One end of the first connecting strip 5 is fixedly connected to the outer wall of the first limiting strip 3 facing the mounting groove 32, and the other end of the first connecting strip 5 is fixedly connected to the edge of the gasket 7. One end of the second connecting strip 6 is fixedly connected to the outer wall of the second limiting strip 4 facing the mounting groove 32, and the other end of the second connecting strip 6 is fixedly connected to the edge of the gasket 7. The height of the upper surface of the gasket 7 is less than the height of the first limiting strip 3, and the height of the upper surface of the gasket 7 is less than the height of the second limiting strip 4.

[0042] Reference Figure 1 and Figure 2The bottom of the mounting groove 32 is roughened to form multiple grooves 321. An adhesive layer 8 is disposed within the mounting groove 32. One side of the adhesive layer 8 is fixedly connected to the upper end of the cap beam 1, and the other side of the adhesive layer 8 is fixedly connected to the lower end of the box beam 2. The adhesive layer 8 is made of ultra-high-strength UHPC. The upper surface of the cap beam 1 is flush with the upper surface of the box beam 2.

[0043] The implementation principle of the prefabricated bridge component assembly structure in the embodiment of the present application is as follows: the first limit bar 3 is slidably embedded in the first sliding groove 111, and the second limit bar 4 is slidably embedded in the second sliding groove 112. The first limit bar 3 and the second limit bar 4 complete the positioning installation. The first connecting bar and the second connecting bar fix the position of the gasket 7. The ultra-high strength UHPC is poured into the installation groove 32, and the box girder 2 is embedded in the installation groove 32. The first limit bar 3 and the second limit bar 4 limit the box girder 2 to complete the construction.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A prefabricated bridge component assembly structure, characterized by: The invention comprises a cap beam (1), a box beam (2) and an adhesive layer (8), wherein one side of the adhesive layer (8) is fixedly connected to the upper end of the cap beam (1), and the other side of the adhesive layer (8) is fixedly connected to the lower end of the box beam (2), and the material of the adhesive layer (8) is set to be ultra-high strength UHPC.

2. The prefabricated bridge component assembly structure according to claim 1, characterized in that: The length direction of the cap beam (1) is perpendicular to the length direction of the box beam (2), and a placement groove (11) is provided at the upper end of the cap beam (1), and the length direction of the placement groove (11) is parallel to the length direction of the cap beam (1). There are two placement grooves (11), and the two placement grooves (11) are respectively close to the two ends of the width direction of the cap beam (1). A protrusion (12) is formed between the two placement grooves (11), and the placement groove (11) extends in a direction away from the protrusion (12) to pass through the cap beam (1), and both ends of the box beam (2) abut against the protrusion, and the adhesive layer (8) is connected to the bottom of the placement groove (11).

3. The prefabricated bridge component assembly structure according to claim 2, characterized in that: The invention also includes a first limiting strip (3) and a second limiting strip (4), wherein the first limiting strip (3) and the second limiting strip (4) are both fixedly connected to the bottom of the placement slot (11), the length directions of the first limiting strip (3) and the second limiting strip (4) are both parallel to the length direction of the box beam (2), an installation slot (32) is provided between the first limiting strip (3) and the second limiting strip (4), and the adhesive layer (8) is provided in the installation slot (32).

4. The prefabricated bridge component assembly structure according to claim 3, characterized in that: The bottom of the placement groove (11) is provided with a first sliding groove (111) and a second sliding groove (112), the length directions of the first sliding groove (111) and the second sliding groove (112) are both parallel to the length direction of the box beam (2), the first sliding groove (111) and the second sliding groove (112) extend in a direction away from the protrusion (12) to pass through the cap beam (1), the first limiting strip (3) is slidably embedded in the first sliding groove (111), and the second limiting strip (4) is slidably embedded in the second sliding groove (112).

5. The prefabricated bridge component assembly structure according to claim 4, characterized in that: The groove wall of the first sliding groove (111) is provided with a first anti-slip groove (1111), the length direction of the first anti-slip groove (1111) is parallel to the length direction of the first sliding groove (111), the length of the first anti-slip groove (1111) is equal to the length of the first sliding groove (111), and the outer wall of the first limiting strip (3) is fixedly connected with a first anti-slip block (31), and the first anti-slip block (31) is slidably embedded in the first anti-slip groove (1111).

6. The prefabricated bridge component assembly structure according to claim 3, characterized in that: It also includes a gasket (7), which is connected to the bottom of the installation groove (32).

7. The prefabricated bridge component assembly structure according to claim 6, characterized in that: It also includes a first connecting belt (5) and a second connecting belt (6), one end of the first connecting belt (5) is fixedly connected to the first limiting strip (3), and the other end of the first connecting belt (5) is fixedly connected to the gasket (7), one end of the second connecting belt (6) is fixedly connected to the second limiting strip (4), and the other end of the second connecting belt (6) is fixedly connected to the gasket (7).

8. The prefabricated bridge component assembly structure according to claim 3, characterized in that: The bottom of the installation groove (32) is provided with a plurality of grooves (321) through a roughening process.

9. The prefabricated bridge component assembly structure according to claim 2, characterized in that: The upper surface of the cap beam (1) is flush with the upper surface of the box beam (2).

10. The prefabricated bridge component assembly structure according to claim 2, characterized in that: A plurality of the box beams (2) are provided, and the plurality of box beams (2) are evenly spaced along the length direction of the cap beam (1).

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