Oblique prestress bridge deck pavement and wet joint construction integrated structure

Abstract

The utility model belongs to the technical field of bridge construction, and relates to an oblique prestress bridge deck pavement and wet joint construction integrated structure which comprises box girder bodies and oblique prestress bridge decks, a wet joint is formed at the joint of every two adjacent box girder bodies, and the oblique prestress bridge decks are arranged above the box girder bodies and above the wet joints. The oblique prestress bridge deck pavement and wet joint construction integrated structure further comprises a first connecting piece, one end of the first connecting piece is arranged in the wet joint, and the other end of the first connecting piece extends into the oblique prestress bridge deck. The first connecting piece is arranged at the wet joint, so that the wet joint and the inclined prestressed bridge floor are integrally connected to form a whole, an operator can conveniently perform integral pouring construction on the wet joint and the inclined prestressed bridge floor, and the integral stress effect of the bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an integrated structure of oblique prestressed bridge deck pavement and wet joint construction. Background Art

[0002] Wet joints refer to the joints where prestressed concrete beams are prefabricated in blocks and the beams are connected into a whole using cast-in-place concrete. Wet joints are important connection parts in concrete box girder bridge structures, and the connection method of wet joints directly affects the structural stability and bearing capacity of the entire bridge.

[0003] Referring to the patent document with application number 201310201022.X, a method for assembling an integral reinforced concrete slab bridge is recorded, and the specific steps are as follows: installing precast reinforced concrete slabs, forming a structural groove of a wet joint between two adjacent precast reinforced concrete slabs, the height of the wet joint is 15 to 18 cm, the top of the wet joint is flush with the top of the precast reinforced concrete slab, and the side of the precast reinforced concrete slab is in contact with the wet joint. The open end double limbs of the U-shaped connecting steel bar are embedded inside the part where the side of the precast reinforced concrete slab contacts the wet joint, and the U-shaped connecting steel bar extends out of the closed end of the precast reinforced concrete slab and extends into the wet joint. Rectangular annular reinforcement is arranged at the closed end position of the U-shaped connecting reinforcement inside two adjacent precast reinforced concrete slabs, longitudinal structural reinforcement is arranged in the overlapping area of ​​the U-shaped connecting reinforcement and the rectangular annular reinforcement, and the longitudinal structural reinforcement is inserted into the overlapping area of ​​the rectangular annular reinforcement and the U-shaped connecting reinforcement; the overall slab bridge is divided into equal-width slabs perpendicular to the driving direction for precasting, the precast slabs are connected by wet joints, connecting reinforcement is embedded in the sides of the precast slabs at positions corresponding to the wet joints, and the embedded connecting reinforcement is tied and connected, and then cement concrete is poured to obtain reinforced concrete slabs, and finally the bridge deck is paved on the reinforced concrete slabs.

[0004] It can be seen from this that in the process of concrete bridge construction, it is first necessary to pour concrete at the corresponding position of the wet joint, and then carry out the pouring construction of the prestressed concrete bridge deck pavement. The wet joint construction and the prestressed concrete bridge deck pavement are poured twice. The wet joint and the oblique prestressed bridge deck do not form an integrated connection structure, which affects the stress effect of the bridge. Utility Model Content

[0005] In order to solve the technical problem in the background technology that the wet joint and the oblique prestressed bridge deck do not form an integrated connection structure, which affects the stress effect of the bridge, the utility model provides an integrated structure of oblique prestressed bridge deck pavement and wet joint construction.

[0006] The utility model discloses an integrated structure of oblique prestressed bridge deck paving and wet joint construction. By arranging a first connecting piece at the wet joint, the wet joint and the oblique prestressed bridge deck are connected as a whole, which is convenient for operators to perform integrated casting construction of the wet joint and the oblique prestressed bridge deck, thereby improving the overall stress effect of the bridge.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] An integrated structure of oblique prestressed bridge deck pavement and wet joint construction includes a box girder body and an oblique prestressed bridge deck, wherein a wet joint is formed at the connection between two adjacent box girder bodies, and the oblique prestressed bridge deck is arranged above the box girder body and above the wet joint; the integrated structure of oblique prestressed bridge deck pavement and wet joint construction also includes a first connecting piece, wherein one end of the first connecting piece is placed in the wet joint, and the other end extends into the oblique prestressed bridge deck.

[0009] In a specific possible implementation mode, a plurality of rows of first connecting members are arranged in the wet joint along the width direction of the box beam body, and a plurality of first connecting members in each row are arranged along the length direction of the box beam body.

[0010] In a specific possible implementation manner, the first connecting member is a grooved rib.

[0011] In a specific possible implementation manner, the length of the first connecting member extending into the oblique prestressed bridge deck is 8-10 cm.

[0012] In a specific feasible implementation scheme, the integrated structure of oblique prestressed bridge deck paving and wet joint construction further includes a second connecting member, one end of which is placed in the box girder body and the other end of which extends into the oblique prestressed bridge deck.

[0013] In a specific possible implementation scheme, a plurality of rows of second connecting members are arranged in the box beam body along the width direction of the box beam body, and a plurality of second connecting members in each row are arranged along the length direction of the box beam body.

[0014] In a specific embodiment, the second connecting member is a steel bar.

[0015] In a specific possible implementation scheme, transverse reinforcement is provided in the wet joint, and two ends of the transverse reinforcement are respectively connected to two adjacent box girder bodies.

[0016] In a specific possible implementation scheme, longitudinal reinforcement is further provided in the wet joint; the longitudinal reinforcement is connected to the transverse reinforcement, and the longitudinal reinforcement and the transverse reinforcement are perpendicular to each other.

[0017] In a specific possible implementation mode, an annular rib is further provided in the wet joint, the annular rib is connected to the longitudinal rib, and the annular rib is arranged in parallel with the transverse rib.

[0018] In summary, the utility model includes the following beneficial technical effects:

[0019] 1. The utility model has an integrated structure for the paving and wet joint construction of the oblique prestressed bridge deck. The first connecting piece arranged at the wet joint connects the wet joint and the oblique prestressed bridge deck to form a whole, which is convenient for operators to perform integral casting construction of the wet joint and the oblique prestressed bridge deck, thereby improving the overall stress effect of the bridge.

[0020] 2. The utility model has an integrated structure for the oblique prestressed bridge deck paving and wet joint construction, and the first connecting member is configured as a grooved bar, which is convenient for combining with concrete, thereby enhancing the connection strength between the wet joint and the oblique prestressed bridge deck. At the same time, during the concrete pouring process, the grooved bar can guide the flow of stress, so that the stress is evenly distributed between the oblique prestressed bridge deck and the wet joint, thereby improving the overall stress-bearing performance of the bridge.

[0021] 3. The utility model has an integrated structure of oblique prestressed bridge deck paving and wet joint construction, and a second connecting piece is arranged in the box girder body, so that the box girder body and the oblique prestressed bridge deck are connected as a whole, thereby improving the connection strength between the box girder body and the oblique prestressed bridge deck, and thus improving the overall force-bearing performance of the bridge. Preferably, the second connecting piece is arranged as a steel bar, and by implanting the steel bar in the box girder body, a tight connection is formed between the box girder body and the oblique prestressed bridge deck, thereby improving the overall force-bearing performance of the bridge.

[0022] 4. The utility model integrates the oblique prestressed bridge deck paving and wet joint construction structure, and arranges transverse reinforcement, longitudinal reinforcement and annular reinforcement at the wet joint. The transverse reinforcement, longitudinal reinforcement and annular reinforcement together form a structurally stable steel skeleton, enhance the connection stability between the wet joint and the box girder body, and improve the overall stress-bearing performance of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall structural schematic diagram of the utility model of an integrated structure of oblique prestressed bridge deck pavement and wet joint construction.

[0024] Figure 2 It is a partial schematic diagram of the utility model's integrated structure of oblique prestressed bridge deck pavement and wet joint construction, and is intended to illustrate the first connecting piece.

[0025] Figure 3 It is a partial schematic diagram of the utility model's integrated structure of oblique prestressed bridge deck pavement and wet joint construction, and is intended to illustrate the structure at the wet joint.

[0026] Figure 4 It is a partial schematic diagram of the integrated structure of the oblique prestressed bridge deck pavement and wet joint construction of the utility model, and is intended to illustrate the integration of the oblique prestressed bridge deck pavement and wet joint construction.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Box girder body; 2. Oblique prestressed bridge deck; 3. Wet joint; 31. Transverse reinforcement; 32. Longitudinal reinforcement; 33. Embedded reinforcement; 34. Annular reinforcement; 4. First connecting piece; 5. Second connecting piece. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the implementation methods described below.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 and Figure 3 An integrated structure of oblique prestressed bridge deck paving and wet joint construction includes: a box girder body 1, an oblique prestressed bridge deck 2 and a first connecting member 4, a wet joint 3 is formed at the connection between two adjacent box girder bodies 1, the oblique prestressed bridge deck 2 is arranged above the box girder body 1 and above the wet joint 3, one end of the first connecting member 4 is placed in the wet joint 3, and the other end extends into the oblique prestressed bridge deck 2.

[0031] In the present embodiment, first, when prefabricating the box girder body 1, the operating personnel set embedded reinforcement 33 on the box girder body 1, and the embedded reinforcement 33 extends into the wet joint 3, so as to facilitate the connection between the wet joint 3 and the box girder body 1 when the wet joint 3 is subsequently cast; then, the operating personnel sequentially erect the prefabricated box girder body 1 according to the construction requirements, and connect one end of the first connecting piece 4 extending into the wet joint 3 with the embedded reinforcement 33; finally, the operating personnel perform integrated casting construction on the wet joint 3 and the oblique prestressed bridge deck 2, so as to obtain an integrated structure of the oblique prestressed bridge deck 2 paving and the wet joint 3 casting.

[0032] Specifically, the first connector 4 can be a steel bar, a steel plate, or a grooved bar. Any configuration that allows the wet joint 3 to be integrally connected to the oblique prestressed bridge deck 2 by setting the first connector 4 is convenient for operators to integrally cast the wet joint 3 and the oblique prestressed bridge deck 2. Preferably, the first connector 4 is configured as a grooved bar. During the integral casting of the wet joint 3 and the oblique prestressed bridge deck 2, the grooved bar is easy to combine with the concrete, thereby enhancing the connection strength between the wet joint 3 and the oblique prestressed bridge deck 2. At the same time, the grooved bar can guide the flow of stress, so that the stress is evenly distributed between the oblique prestressed bridge deck 2 and the wet joint 3, thereby improving the overall stress performance of the bridge.

[0033] In this embodiment, multiple rows of first connectors 4 are arranged in the wet joint 3 along the width direction of the box girder body 1, and multiple first connectors 4 are arranged in each row along the length direction of the box girder body 1. Specifically, the grooved bars can be arranged in two rows, three rows, or four rows, and the specific number of rows of the grooved bars is set according to the width of the wet joint 3, and the distance between two adjacent grooved bars distributed along the length direction of the box girder body 1 is the longitudinal distance of the annular bars 34 in the box girder body 1; by arranging the grooved bars in the wet joint 3, the wet joint 3 is connected to the oblique prestressed bridge deck 2 in an integrated manner, which facilitates the integrated casting construction of the oblique prestressed bridge deck 2 and the wet joint 3.

[0034] In this embodiment, the length of the first connecting member 4 extending into the oblique prestressed bridge deck 2 is 8-10 cm. Specifically, the length of the first connecting member 4 extending into the oblique prestressed bridge deck 2 can be 8 cm, 9 cm, or 10 cm. Any setting method is acceptable as long as the first connecting member 4 extends into the oblique prestressed bridge deck 2 so that the wet joint 3 and the oblique prestressed bridge deck 2 are integrally connected.

[0035] Example 2

[0036] Reference Figure 2 and Figure 4 The integrated structure of the oblique prestressed bridge deck pavement and wet joint construction in this embodiment, on the basis of Embodiment 1, further includes a second connector 5, one end of which is placed in the box girder body 1, and the other end extends into the oblique prestressed bridge deck 2. The operator sets the second connector 5 on the box girder body 1, so that the box girder body 1 and the oblique prestressed bridge deck 2 are integrally connected, and when the oblique prestressed bridge deck 2 is cast, the connection strength between the box girder body 1 and the oblique prestressed bridge deck 2 is improved.

[0037] Specifically, the second connecting member 5 can be a steel bar, a steel plate, a pin, etc. Preferably, the second connecting member 5 is a steel bar. The second connecting member 5 and the box girder body 1 are connected by bolt connection, chemical anchoring, welding, etc. Preferably, the second connecting member 5 and the box girder body 1 are connected by chemical anchoring; the operator drills holes on the box girder body 1 and injects chemical anchoring agents, and then inserts steel bars into the holes, that is, planting steel bars on the box girder body 1, and enhancing the connection strength between the box girder body 1 and the oblique prestressed bridge deck 2.

[0038] In this embodiment, multiple rows of second connectors 5 are arranged in the box girder body 1 along the width direction of the box girder body 1, and multiple second connectors 5 are arranged in each row along the length direction of the box girder body 1. Specifically, the second connectors 5 can be arranged in two rows, three rows, or four rows, and the specific number of rows of the second connectors 5 is set according to the width of the box girder body 1, and the distance between two adjacent second connectors 5 distributed along the length direction of the box girder body 1 is 50 cm; by arranging the second connectors 5 on the box girder body 1, the box girder body 1 and the oblique prestressed bridge deck 2 are integrally connected, thereby improving the connection strength between the box girder body 1 and the oblique prestressed bridge deck 2.

[0039] Example 3

[0040] Reference Figure 1 and Figure 3 In this embodiment, the oblique prestressed bridge deck pavement and wet joint construction integrated structure is based on the first embodiment. A transverse reinforcement 31 is provided in the wet joint 3. The embedded reinforcement 33 provided in the box girder body 1 extends to the wet joint 3. Both ends of the transverse reinforcement 31 extend to two adjacent box girder bodies 1 respectively, and the transverse reinforcement 31 is connected to the embedded reinforcement 33. The provided transverse reinforcement 31 connects the two adjacent box girder bodies 1 together, thereby improving the connection strength between the two adjacent box girder bodies 1.

[0041] Example 4

[0042] Reference Figure 1 and Figure 3 In this embodiment, the oblique prestressed bridge deck pavement and wet joint construction are integrated. On the basis of Embodiment 3, longitudinal bars 32 are further provided in the wet joint 3. The longitudinal bars 32 are connected to the transverse bars 31, and the longitudinal bars 32 and the transverse bars 31 are perpendicular to each other. Specifically, the longitudinal bars 32 and the transverse bars 31 can be connected by welding, tying, etc. Preferably, the longitudinal bars 32 and the transverse bars 31 are welded to improve the connection strength between the longitudinal bars 32 and the transverse bars 31.

[0043] Example 5

[0044] Reference Figure 1 and Figure 3 In this embodiment, the oblique prestressed bridge deck pavement and wet joint construction integrated structure, on the basis of embodiment 4, an annular rib 34 is further provided in the wet joint 3, the annular rib 34 is connected to the longitudinal rib 32, and the annular rib 34 is welded to the longitudinal rib 32, and the annular rib 34 is arranged in parallel with the transverse rib 31. Specifically, the annular rib 34 can be set as a single-limb annular rib 34, annular annular rib 34, rectangular annular rib 34, etc. Preferably, the annular rib 34 is set as an annular structure, and the annular annular rib 34 is more suitable for the arrangement of the longitudinal rib 32, effectively preventing the slippage of the longitudinal rib 32, thereby enhancing the stability of the concrete structure.

[0045] The utility model discloses a construction method for an integrated structure of oblique prestressed bridge deck paving and wet joint construction: first, before casting the box girder body 1, the operating personnel arranges the embedded reinforcement 33 on the box girder body 1; then, after the operating personnel sets up the cast prefabricated box girder body 1 according to the construction requirements, the following operations are performed in sequence: the two ends of the transverse reinforcement 31 are respectively connected to the embedded reinforcement 33 on the two adjacent box girder bodies 1, the longitudinal reinforcement 32 is connected to the transverse reinforcement 31, and the annular reinforcement 34 is connected to the longitudinal reinforcement 32, so as to realize the integrated connection between the adjacent box girder bodies 1; next, one end of the groove reinforcement extending into the wet joint 3 is connected to the embedded reinforcement 33 on the box girder body 1, so as to realize the integrated connection between the wet joint 3 and the oblique prestressed bridge deck 2; finally, the operating personnel perform integrated casting construction on the wet joint 3 and the oblique prestressed bridge deck 2, i.e., the integrated structure of the oblique prestressed bridge deck 2 paving and the wet joint 3 construction is obtained.

[0046] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An integrated structure of oblique prestressed bridge deck pavement and wet joint construction, comprising a box girder body (1) and an oblique prestressed bridge deck (2), wherein a wet joint (3) is formed at the connection between two adjacent box girder bodies (1), characterized in that: The oblique prestressed bridge deck (2) is arranged above the box girder body (1) and above the wet joint (3); The integrated structure of oblique prestressed bridge deck paving and wet joint construction further comprises a first connecting member (4), one end of the first connecting member (4) being placed in the wet joint (3) and the other end extending into the oblique prestressed bridge deck (2).

2. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 1 is characterized in that: In the wet joint (3), a plurality of rows of first connecting members (4) are arranged along the width direction of the box beam body (1), and a plurality of first connecting members (4) in each row are arranged along the length direction of the box beam body (1).

3. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 1 is characterized in that: The first connecting member (4) is a grooved rib.

4. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to any one of claims 1 to 3, characterized in that: The length of the first connecting member (4) extending into the oblique prestressed bridge deck (2) is 8-10 centimeters.

5. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 1 is characterized in that: The integrated structure of oblique prestressed bridge deck paving and wet joint construction also includes a second connecting member (5), one end of which is placed in the box girder body (1) and the other end of which extends into the oblique prestressed bridge deck (2).

6. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 5 is characterized in that: A plurality of rows of second connecting members (5) are arranged in the box beam body (1) along the width direction of the box beam body (1), and a plurality of second connecting members (5) in each row are arranged along the length direction of the box beam body (1).

7. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 6 is characterized in that: The second connecting member (5) is a steel bar.

8. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to any one of claims 1 to 3, characterized in that: A transverse reinforcement (31) is provided in the wet joint (3), and two ends of the transverse reinforcement (31) are respectively connected to two adjacent box beam bodies (1).

9. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 8 is characterized in that: The wet joint (3) is also provided with longitudinal ribs (32), the longitudinal ribs (32) are connected to the transverse ribs (31), and the longitudinal ribs (32) and the transverse ribs (31) are perpendicular to each other.

10. The integrated structure of oblique prestressed bridge deck paving and wet joint construction according to claim 9, characterized in that: An annular rib (34) is also provided in the wet joint (3), the annular rib (34) is connected to the longitudinal rib (32), and the annular rib (34) and the transverse rib (31) are arranged in parallel.

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