Composite beam precast concrete bridge deck connecting piece structure

Abstract

The invention relates to the technical field of bridge deck slab connecting piece structures, in particular to a composite beam prefabricated concrete bridge deck slab connecting piece structure. According to the technical scheme, the bridge deck comprises a first concrete bridge deck body and a second concrete bridge deck body, and the ends, close to each other, of the first concrete bridge deck body and the second concrete bridge deck body are provided with pouring connecting grooves and connecting pieces correspondingly; the ends, away from each other, of the first concrete bridge deck and the second concrete bridge deck are provided with connecting pieces and pouring connecting grooves correspondingly. During connection construction, the multiple sets of reinforcing ribs are inserted into the multiple sets of through openings correspondingly, concrete grout can be injected into the pouring connection grooves when the concrete bridge deck slabs are connected, the concrete grout enters the inner grooves in the inner sides of the through openings through the pouring openings, and the reinforcing ribs are more firmly fixed into the inner grooves; the edge locking pieces and the edge groove assemblies are arranged at the two ends of the adjacent first concrete bridge deck slab and the second concrete bridge deck slab, so that the concrete bridge deck slabs can be effectively prevented from cracking to generate gaps.

Description

Technical Field

[0001] The present application relates to the technical field of bridge deck connector structures, and in particular to a composite beam precast concrete bridge deck connector structure. Background Art

[0002] Casting concrete bridge decks on site takes a long time. Composite beam precast concrete bridge decks are easy and quick to construct. The bridge decks are precast in advance and assembled on site, which can save on-site workload and make construction fast and reliable. After the bridge decks are precast and installed, only a small amount of connecting gaps and connecting holes need to be cast to connect the steel beam and concrete bridge deck to form a composite beam.

[0003] When precast concrete bridge panels are spliced, a cast splicing structure is required to fix the two adjacent concrete bridge panels together. When the existing cast connectors are cast and fixed, they are spliced ​​and fixed together through reinforcing ribs and splicing grooves, and then secondary concrete pouring, which facilitates on-site construction and installation.

[0004] The existing concrete bridge deck connectors will still have certain disadvantages in the future. The connection is prone to cracks, and the compressive performance is not ideal when used in a high-pressure environment. Once a problem occurs, repair will be a large-scale project. In view of this, the present application proposes a composite beam precast concrete bridge deck connector structure. Summary of the invention

[0005] The purpose of this application is to propose a composite beam precast concrete bridge deck connector structure in response to the technical problems pointed out in the background technology.

[0006] The technical solution of the present application is as follows: a composite beam precast concrete bridge deck connector structure, comprising a first concrete bridge deck and a second concrete bridge deck, wherein the ends of the first concrete bridge deck and the second concrete bridge deck close to each other are respectively provided with a casting connection groove and a connector, and the ends of the first concrete bridge deck and the second concrete bridge deck far away from each other are respectively provided with a connector and a casting connection groove, for positioning and splicing a plurality of groups of the first concrete bridge deck and the second concrete bridge deck;

[0007] Two adjacent first concrete bridge decks are locked with the second concrete bridge deck by a set of locking edge pieces;

[0008] Side groove components are provided at the ends of the two sides of the first concrete bridge deck and the second concrete bridge deck that are close to each other; the splicing width of the two side groove components on the same side is the same as the width of the locking edge piece.

[0009] Preferably, the side groove assembly includes a side wing groove opened on the side of the first concrete bridge deck or the second concrete bridge deck, and the inner end side walls of the side wing groove are provided with limit grooves, and the edge locking piece includes a right-angle U-shaped clamping rod, and both ends of the right-angle U-shaped clamping rod are slidably connected with a pair of limit blocks, and the corresponding two limit blocks respectively extend into the corresponding two limit grooves under the extrusion of pouring concrete.

[0010] Preferably, the depth of the limiting groove is half the width of the limiting block;

[0011] The middle parts of both ends of the right-angle U-shaped clamping rod are provided with slurry introduction ports, and the corners of the two limit blocks close to each other and close to the slurry introduction ports are arc-shaped parts, which are convenient for the inflow of concrete.

[0012] Preferably, the casting connection groove is provided with a plurality of through openings, one end of the connection piece is connected with a plurality of groups of reinforcing ribs, the corresponding reinforcing ribs can be inserted into the corresponding through openings, and the inner side of the through opening is provided with an inner groove larger than the aperture of the through opening;

[0013] One end of the through opening is provided with a pouring inlet, and the pouring inlet is communicated with the inner groove.

[0014] Preferably, the connecting member comprises an inlay block connected to the second concrete bridge deck on one side close to the casting connection groove, the reinforcing rib is inlayed on the inlay block, the upper and lower end faces of the inlay block are provided with longitudinal grooves, the outer surface of the inlay block is provided with a flat groove, the side surface of the inlay block is provided with a plurality of through openings which are connected with the two longitudinal grooves, and the two ends of the inlay block are provided with side grooves;

[0015] An injection port is provided on one side of the casting connection groove, and concrete is injected into the casting connection groove through the injection port.

[0016] Preferably, the side trough assembly further comprises a slurry distribution port communicating with the side wing trough, and the slurry distribution port passes through the casting connection trough or the connection piece.

[0017] Preferably, the outer depth of the side wing groove is greater than the outer depth of the right-angle U-shaped clamping rod. When both ends of the right-angle U-shaped clamping rod collide with the inner wall of the corner of the side wing groove, a filling cavity exists between the inner wall of the right-angle U-shaped clamping rod and the inner wall of the side wing groove.

[0018] Preferably, the inner walls at both ends of the right-angle U-shaped clamping rod are provided with slurry guiding grooves, and after the two limit blocks are opened, the slurry guiding grooves are connected with the slurry introducing port, and the slurry introducing port is connected with the slurry separating port.

[0019] Preferably, after both ends of the right-angle U-shaped clamping rod are completely inserted into the two limiting grooves, the outer end surface of the right-angle U-shaped clamping rod is flush with the outer end surfaces of the first concrete bridge deck and the second concrete bridge deck.

[0020] Preferably, after the embedding block is inserted into the casting connection groove, the first concrete bridge deck and the second concrete bridge deck maintain a casting distance.

[0021] Compared with the prior art, this application has the following beneficial technical effects:

[0022] The present application provides a casting connection groove and a connecting piece at the end close to the first concrete bridge deck and the second concrete bridge deck, and after the connecting piece is inserted into the casting connection groove, a plurality of groups of reinforcing ribs are respectively inserted into a plurality of groups of through openings. When the concrete bridge decks are connected, concrete slurry can be injected into the casting connection groove, and the concrete slurry enters the inner groove inside the through opening through the injection port, so that the reinforcing ribs are more firmly fixed inside the inner groove, thereby improving the stability of the connection.

[0023] By arranging locking pieces and side groove components at both ends of the adjacent first concrete bridge deck and the second concrete bridge deck, the first concrete bridge deck and the second concrete bridge deck connected by secondary casting can be horizontally positioned, which can effectively prevent the concrete bridge deck from cracking and generating gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the composite beam precast concrete bridge deck connection structure;

[0025] Figure 2 is a schematic diagram of the structure of the second concrete bridge deck and the connecting member in the present application;

[0026] Figure 3 This application Figure 2 A partial cross-sectional view of

[0027] Figure 4 yes Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 It is a structural schematic diagram of the first concrete bridge deck and the casting connection groove in this application;

[0029] Figure 6 yes Figure 5 A partial cross-sectional view of

[0030] Figure 7 It is a schematic diagram of the structure of the edge locking member in this application;

[0031] Figure 8 yes Figure 7 A partial cross-sectional view of .

[0032] Reference numerals: 101, first concrete bridge deck; 102, second concrete bridge deck; 201, casting connection groove; 202, connection piece;

[0033] 2021, inlay block; 2022, longitudinal groove; 2023, through opening; 2024, side notch; 2025, flat groove;

[0034] 3. Reinforcement ribs; 4. Through-hole; 5. Filling inlet;

[0035] 6. Locking edge piece; 601. Right-angle U-shaped clamping rod; 602. Limiting block; 603. Arc-shaped part; 604. Slurry introduction port; 605. Slurry guide groove;

[0036] 7. Side slot assembly; 701. Side slot; 702. Limiting slot; 703. Slurry distribution port;

[0037] 8. Injection port. DETAILED DESCRIPTION

[0038] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0040] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Example

[0044] like Figure 1-8 As shown, the composite beam precast concrete bridge deck connector structure proposed in the present application includes a first concrete bridge deck 101 and a second concrete bridge deck 102, wherein the ends of the first concrete bridge deck 101 and the second concrete bridge deck 102 close to each other are respectively provided with a cast connection groove 201 and a connector 202, and the ends of the first concrete bridge deck 101 and the second concrete bridge deck 102 far away from each other are respectively provided with a connector 202 and a cast connection groove 201, which are used for positioning and splicing several groups of first concrete bridge decks 101 and second concrete bridge decks 102 so that several groups of first concrete bridge decks 101 and second concrete bridge decks 102 are integrated. In order to more clearly illustrate the specific structure of the connector 202 and the cast connection groove 201, the present application describes in detail the cast connection groove 201 and the connector 202 at the end of the first concrete bridge deck 101 and the second concrete bridge deck 102 close to each other.

[0045] Furthermore, the two adjacent first concrete bridge decks 101 and the second concrete bridge decks 102 are locked by a set of locking pieces 6, and the locking pieces 6 play a role of horizontal protection for the first concrete bridge deck 101 and the second concrete bridge deck 102 (preventing cracks from forming on the first concrete bridge deck 101 and the second concrete bridge deck 102 after being subjected to force).

[0046] Furthermore, side groove assemblies 7 are provided at the ends of the two sides of the first concrete bridge deck 101 and the second concrete bridge deck 102 that are close to each other; the splicing width of the two side groove assemblies 7 on the same side is the same as the width of the locking edge piece 6, so that the locking edge piece 6 fits in and is inserted into the two side groove assemblies 7 on the same side to form a complete spliced ​​whole.

[0047] Specifically, the side groove assembly 7 includes a side wing groove 701 opened on the side of the first concrete bridge deck 101 or the second concrete bridge deck 102, and the inner end side walls of the side wing groove 701 are provided with limiting grooves 702, and the locking piece 6 includes a right-angle U-shaped clamping rod 601, and both ends of the right-angle U-shaped clamping rod 601 are slidably connected with a pair of limiting blocks 602, and the corresponding two limiting blocks 602 are respectively extended into the corresponding two limiting grooves 702 under the extrusion of pouring concrete (the limiting block 602 is located on the inner side of the end of the right-angle U-shaped clamping rod 601 before connection, and the outer end face of the limiting block 602 is flush with the outer end face of the right-angle U-shaped clamping rod 601, so that it can be smoothly inserted into the inner side of the right-angle part of the side wing groove 701). The depth of the limiting groove 702 is half of the width of the limiting block 602, which prevents the limiting block 602 from being separated from the right-angle U-shaped clamping rod 601, so that the limiting block 602 and the right-angle U-shaped clamping rod 601 maintain a sufficient force-bearing area. After the two ends of the right-angle U-shaped clamping rod 601 are fully inserted into the two limiting grooves 702, the outer end surface of the right-angle U-shaped clamping rod 601 is flush with the outer end surfaces of the first concrete bridge deck 101 and the second concrete bridge deck 102, maintaining a flat connection interface.

[0048] Among them, a slurry introduction port 604 is opened in the middle of both ends of the right-angle U-shaped clamping rod 601, and the side where the two limit blocks 602 are close to each other and close to the corner of the slurry introduction port 604 is an arc-shaped portion 603, which is convenient for the inflow of concrete slurry. The impact force of the concrete slurry will act on the two arc-shaped portions 603, making it easier for the slurry to be squeezed between the two limit blocks 602, so that the two limit blocks 602 can be smoothly unfolded and respectively inserted into the corresponding two limit grooves 702.

[0049] The casting connection groove 201 is provided with a plurality of through openings 4, one end of the connector 202 is connected with a plurality of groups of reinforcing ribs 3, and the corresponding reinforcing ribs 3 can be inserted into the corresponding through openings 4, and the inner side of the through openings 4 is provided with an inner groove larger than the aperture of the through openings 4. A pouring inlet 5 is provided at one end of the through openings 4, and the pouring inlet 5 is connected with the inner groove. When the connector 202 is inserted into the casting connection groove 201, the reinforcing ribs 3 are inserted into the through opening 4. The purpose of providing the pouring inlet 5 is to allow the slurry to enter the inner groove through the pouring inlet 5, so that the reinforcing ribs 3 and the inner groove are integrated.

[0050] Specifically, the connector 202 includes an inlay block 2021 connected to the second concrete bridge deck 102 near the casting connection groove 201, the reinforcing rib 3 is inlayed on the inlay block 2021, the upper and lower end surfaces of the inlay block 2021 are provided with longitudinal grooves 2022, the outer surface of the inlay block 2021 is provided with a flat groove 2025, the side of the inlay block 2021 is provided with a plurality of through holes 2023 that are connected with the two longitudinal grooves 2022, and the two ends of the inlay block 2021 are provided with side grooves 2024. An injection port 8 is provided on one side of the casting connection groove 201, and concrete is injected into the casting connection groove 201 through the injection port 8. Specifically, after the first concrete bridge deck 101 is connected to the second concrete bridge deck 102, concrete slurry is injected through the injection port 8, and the slurry is filled into the flat groove 2025 and the longitudinal groove 2022 through the side groove 2024, so that the gap between the casting connection groove 201 and the embedded block 2021 is filled with slurry, and the connection is stable. The opening of the through port 2023 allows the slurry to flow mutually, making it easy to fill.

[0051] Furthermore, the side trough assembly 7 also includes a slurry distribution port 703 that is connected to the side wing groove 701. The slurry distribution port 703 passes through the casting connection groove 201 or the connector 202, so that the slurry in the casting connection groove 201 can be injected into the slurry introduction port 604. The outer depth of the side wing groove 701 is greater than the outer depth of the right-angle U-shaped clamping rod 601. When both ends of the right-angle U-shaped clamping rod 601 collide with the inner wall of the corner of the side wing groove 701, a filling cavity exists between the inner wall of the right-angle U-shaped clamping rod 601 and the inner wall of the side wing groove 701. Concrete slurry is poured into the filling cavity, so that the right-angle U-shaped clamping rod 601 is seamlessly connected to the side trough assembly 7. The inner walls of both ends of the right-angle U-shaped clamping rod 601 are provided with slurry guide grooves 605. After the two limit blocks 602 are opened, the slurry guide grooves 605 are connected to the slurry introduction port 604, and the slurry introduction port 604 is connected to the slurry distribution port 703. Among them, after the embedded block 2021 is inserted into the casting connection groove 201, the first concrete bridge deck 101 and the second concrete bridge deck 102 maintain a casting distance, so that the poured slurry is squeezed into the distance space, so that the first concrete bridge deck 101 and the second concrete bridge deck 102 are seamlessly connected as a whole.

[0052] The construction principle of this embodiment is as follows: first, the ends of the first concrete bridge deck 101 and the second concrete bridge deck 102 are spliced ​​together, and the connector 202 is inserted into the interior of the casting connection groove 201, and at the same time, a plurality of reinforcing ribs 3 are inserted into a plurality of through openings 4. Next, two right-angle U-shaped clamping rods 601 are respectively inserted into the side wing grooves 701 on both sides, and the two right-angle ends of the right-angle U-shaped clamping rods 601 are respectively inserted into the right-angle inner walls of the two side wing grooves 701, and the first concrete bridge deck 101 and the second concrete bridge deck 102 are placed flat, and the outer right-angle U-shaped plate is clamped at the connection between the first concrete bridge deck 101 and the second concrete bridge deck 102, covering the outside of the gap between the first concrete bridge deck 101 and the second concrete bridge deck 102 (and can also play a positioning role for the two locking edge pieces 6), and then concrete slurry is injected into the casting connection groove 201 through the injection port 8, and the slurry fills the longitudinal groove 2022 and the flat groove 2025, and the slurry is continuously injected, and the slurry passes through the slurry distribution port 7. 03 enters the corresponding slurry introduction port 604. Under the dynamic pressure of the slurry, the two limit blocks 602 move away and are respectively inserted into the corresponding limit grooves 702, thereby locking the right-angle U-shaped clamping rod 601. When the two limit blocks 602 are opened, the slurry flows into the slurry guide groove 605, and finally enters the filling cavity of the right-angle U-shaped clamping rod 601 and the side wing groove 701, so that the right-angle U-shaped clamping rod 601 is integrated with the first concrete bridge deck 101 and the second concrete bridge deck 102. It is worth noting that the slurry in the pouring connection groove 201 will also squeeze into the gap between the first concrete bridge deck 101 and the second concrete bridge deck 102, so that the first concrete bridge deck 101 and the second concrete bridge deck 102 are integrated. The synchronous slurry will penetrate into the inner grooves inside the several through ports 4 through several through ports 2023 and then through several injection ports 5, so that the reinforcing ribs 3 are connected to the first concrete bridge deck 101 as a whole. The connection structure designed in the present application makes the reinforcing rib 3 more firmly fixed inside the inner groove, thereby improving the stability of the connection. By providing the locking edge pieces 6 and the side groove components 7 at both ends of the adjacent first concrete bridge deck 101 and the second concrete bridge deck 102, the first concrete bridge deck 101 and the second concrete bridge deck 102 connected by secondary pouring can be horizontally positioned, which can effectively prevent the concrete bridge deck from cracking and generating gaps, thereby ensuring the safety performance and service life of the composite beam precast concrete bridge deck.

[0053] The above-mentioned specific embodiments are merely preferred embodiments of the present application. Based on the technical solutions of the present application and the relevant inspirations of the above-mentioned embodiments, those skilled in the art may make various alternative improvements and combinations to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely explanations of the present application, and they are not limitations of the present application.

Claims

1. A composite beam precast concrete bridge deck connector structure, comprising a first concrete bridge deck (101) and a second concrete bridge deck (102), characterized in that: The ends of the first concrete bridge deck (101) and the second concrete bridge deck (102) that are close to each other are respectively provided with a casting connection groove (201) and a connection piece (202), and the ends of the first concrete bridge deck (101) and the second concrete bridge deck (102) that are far away from each other are respectively provided with a connection piece (202) and a casting connection groove (201), which are used for positioning and splicing a plurality of sets of first concrete bridge decks (101) and second concrete bridge decks (102); Two adjacent first concrete bridge decks (101) and a second concrete bridge deck (102) are locked by a set of locking pieces (6); Side groove components (7) are provided at the ends of the two sides of the first concrete bridge deck (101) and the second concrete bridge deck (102) that are close to each other; the splicing width of the two side groove components (7) on the same side is the same as the width of the locking edge piece (6).

2. The composite beam precast concrete bridge deck connector structure according to claim 1, characterized in that: The side groove assembly (7) comprises a side wing groove (701) provided on the side of the first concrete bridge deck (101) or the second concrete bridge deck (102), and both side walls of the inner end of the side wing groove (701) are provided with limit grooves (702). The side locking member (6) comprises a right-angle U-shaped clamping rod (601), and both ends of the right-angle U-shaped clamping rod (601) are slidably connected with a pair of limit blocks (602), and the corresponding two limit blocks (602) are respectively extended into the corresponding two limit grooves (702) under the extrusion of the poured concrete.

3. The composite beam precast concrete bridge deck connector structure according to claim 2, characterized in that: The depth of the limiting groove (702) is half the width of the limiting block (602); The middle parts of both ends of the right-angle U-shaped clamping rod (601) are provided with slurry introduction ports (604), and the corners of the two limit blocks (602) close to each other and close to the slurry introduction ports (604) are arc-shaped parts (603) to facilitate the inflow of concrete.

4. The composite beam precast concrete bridge deck connector structure according to claim 3, characterized in that: The casting connection groove (201) is provided with a plurality of through openings (4), one end of the connection piece (202) is connected with a plurality of groups of reinforcing ribs (3), the corresponding reinforcing ribs (3) can be inserted into the corresponding through openings (4), and the inner side of the through opening (4) is provided with an inner groove having a diameter larger than that of the through opening (4); A pouring inlet (5) is provided at one end of the through opening (4), and the pouring inlet (5) is communicated with the inner groove.

5. The composite beam precast concrete bridge deck connector structure according to claim 4, characterized in that: The connecting member (202) comprises an inlay block (2021) connected to the second concrete bridge deck (102) on one side close to the cast connection groove (201); the reinforcing rib (3) is inlayed on the inlay block (2021); the upper and lower end surfaces of the inlay block (2021) are both provided with longitudinal grooves (2022); the outer surface of the inlay block (2021) is provided with a flat groove (2025); the side surface of the inlay block (2021) is provided with a plurality of through openings (2023) that are in communication with the two longitudinal grooves (2022); and the two ends of the inlay block (2021) are both provided with side notches (2024); An injection port (8) is provided on one side of the casting connection groove (201), and concrete is injected into the casting connection groove (201) through the injection port (8).

6. The composite beam precast concrete bridge deck connector structure according to claim 1, characterized in that: The side trough assembly (7) further comprises a slurry distribution opening (703) which is in communication with the side wing trough (701), and the slurry distribution opening (703) passes through the casting connection trough (201) or the connection piece (202).

7. The composite beam precast concrete bridge deck connector structure according to claim 6, characterized in that: The outer depth of the side wing groove (701) is greater than the outer depth of the right-angle U-shaped clamping rod (601). When both ends of the right-angle U-shaped clamping rod (601) collide with the inner wall of the corner of the side wing groove (701), a filling cavity exists between the inner wall of the right-angle U-shaped clamping rod (601) and the inner wall of the side wing groove (701).

8. The composite beam precast concrete bridge deck connector structure according to claim 3, characterized in that: The inner walls at both ends of the right-angle U-shaped clamping rod (601) are provided with slurry guiding grooves (605). After the two limit blocks (602) are opened, the slurry guiding grooves (605) are connected with the slurry introduction port (604), and the slurry introduction port (604) is connected with the slurry separation port (703).

9. The composite beam precast concrete bridge deck connector structure according to claim 2, characterized in that: After both ends of the right-angle U-shaped clamping rod (601) are completely inserted into the two limiting grooves (702), the outer end surface of the right-angle U-shaped clamping rod (601) is flush with the outer end surfaces of the first concrete bridge deck (101) and the second concrete bridge deck (102).

10. The composite beam precast concrete bridge deck connector structure according to claim 5, characterized in that: After the embedding block (2021) is inserted into the casting connection groove (201), the first concrete bridge deck (101) and the second concrete bridge deck (102) maintain a casting distance.

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