Composite beam precast concrete bridge deck connection structure

Abstract

The present application relates to the technical field of bridge deck connector structures, and in particular to composite beam precast concrete bridge deck connector structures. The following technical solution is proposed: comprising a first concrete bridge deck and a second concrete bridge deck, the ends of the first concrete bridge deck and the second concrete bridge deck that are close to each other are respectively provided with casting connection grooves and connectors, and the ends of the first concrete bridge deck and the second concrete bridge deck that are away from each other are respectively provided with connectors and casting connection grooves. During the connection construction of the present application, several groups of reinforcing bars are respectively inserted into several groups of through openings. When the concrete bridge deck is connected, concrete slurry can be injected into the casting connection grooves. The concrete slurry enters the inner groove inside the through opening through the injection port, so that the reinforcing bars are more firmly fixed inside the inner groove; by arranging locking edge pieces and side groove assemblies at both ends of the adjacent first concrete bridge deck and the second concrete bridge deck, it is possible to effectively prevent the concrete bridge deck from cracking and generating 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 is time-consuming. However, composite beam precast concrete bridge decks are quick and easy to construct. Prefabricating the decks ahead of time and assembling them on-site reduces on-site workload and ensures rapid and reliable construction. After the decks are prefabricated and installed, only a few joints and slots need to be cast to connect the steel beams and concrete decks together to form the composite beam.

[0003] When precast concrete bridge decks are spliced ​​together, a cast splicing structure is required to fix the two adjacent concrete bridge decks together. When casting and fixing, the existing cast connectors use reinforcing ribs and splicing grooves, and then secondary concrete pouring to splice and fix the two adjacent concrete bridge decks together, which is convenient for on-site construction and installation.

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

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

[0006] The technical solution of the present application is 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 cast connection groove and a connector, and the ends of the first concrete bridge deck and the second concrete bridge deck away from each other are respectively provided with a connector and a cast connection groove for positioning and splicing a plurality of sets of the first concrete bridge deck and the second concrete bridge deck;

[0007] The two adjacent first concrete bridge decks and the second concrete bridge deck are locked by a set of locking pieces;

[0008] Side groove components are provided at the ends of the two side surfaces 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 two side walls at the inner end of the side wing groove are provided with limit grooves, and the 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 the poured concrete.

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

[0011] A slurry introduction port is provided in the middle of both ends of the right-angle U-shaped clamping rod, and the corners of the two limit blocks close to each other and close to the slurry introduction port are arc-shaped portions, which facilitate the inflow of concrete.

[0012] Preferably, the casting connection groove is provided with a plurality of through openings, one end of the connector is connected to a plurality of groups of reinforcing ribs, and 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 port is provided with a pouring inlet, which is communicated with the inner groove.

[0014] Preferably, the connecting member includes an inlay block connected to the second concrete bridge deck on a side close to the cast connection groove, the reinforcing rib is inlayed on the inlay block, the upper and lower end surfaces 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 that penetrate the two longitudinal grooves, and both ends of the inlay block are provided with side notches;

[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 includes 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 conflict 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 fully 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 joint 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 connector at the end close to the first concrete bridge deck and the second concrete bridge deck, respectively. After the connector is inserted into the casting connection groove, a plurality of groups of reinforcing bars 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. The concrete slurry enters the inner groove inside the through opening through the injection port, so that the reinforcing bars are more firmly fixed inside the inner groove, thereby improving the stability of the connection.

[0023] By arranging locking pieces and side groove assemblies 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 pouring 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 connector structure;

[0025] Figure 2 is a schematic structural diagram of the second concrete bridge deck and connectors in this application;

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

[0027] Figure 4 yes Figure 3 A in the middle is an enlarged structural diagram;

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

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

[0030] Figure 7 It is a structural diagram 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, splice block; 2022, longitudinal groove; 2023, through-opening; 2024, side notch; 2025, flat groove;

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

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

[0036] 7. Side trough assembly; 701. Side wing trough; 702. Limiting groove; 703. Slurry separation port;

[0037] 8. Injection port. DETAILED DESCRIPTION

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

[0039] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of 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 claimed application, but merely represents 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 this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the 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, and 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 cast connecting groove 201 and a connector 202, and the ends of the first concrete bridge deck 101 and the second concrete bridge deck 102 that are away from each other are respectively provided with a connector 202 and a cast connecting groove 201, which are used to position and splice 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 connecting groove 201, the present application uses the cast connecting groove 201 and the connector 202 at the end of the first concrete bridge deck 101 and the second concrete bridge deck 102 that are close to each other for detailed description.

[0045] Furthermore, the two adjacent first concrete bridge panels 101 and the second concrete bridge panels 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 panels 101 and the second concrete bridge panels 102 (preventing cracks from occurring in the first concrete bridge panels 101 and the second concrete bridge panels 102 after being subjected to force).

[0046] Furthermore, side groove assemblies 7 are provided at the ends of both 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 piece 6, so that the locking piece 6 fits in 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 two side walls of the inner end of the side wing groove 701 are provided with a limiting groove 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 poured 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 the width of the limiting block 602, preventing the limiting block 602 from separating from the right-angled U-shaped clamping rod 601 and ensuring a sufficient force-bearing area between the limiting block 602 and the right-angled U-shaped clamping rod 601. After the ends of the right-angled U-shaped clamping rod 601 are fully inserted into the two limiting grooves 702, the outer end surface of the right-angled 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 smooth 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 inserted into the corresponding two limit grooves 702 respectively.

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

[0050] Specifically, the connector 202 includes an inlay block 2021 connected to the second concrete bridge deck 102 on the side near the casting connection groove 201. The reinforcing bar 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 of the inlay block 2021 is provided with a plurality of through-holes 2023 that penetrate the two longitudinal grooves 2022. 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, through which concrete is injected into the casting connection groove 201. 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 between each other, 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 trough 701. The slurry distribution port 703 penetrates the casting connection trough 201 or the connector 202, allowing the slurry in the casting connection trough 201 to be injected into the slurry introduction port 604. The outer depth of the side wing trough 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 trough 701, a filling cavity is formed between the inner wall of the right-angle U-shaped clamping rod 601 and the inner wall of the side wing trough 701. Concrete slurry is poured into the filling cavity, so that the right-angle U-shaped clamping rod 601 and the side trough assembly 7 are seamlessly connected. A slurry guide groove 605 is opened on the inner wall of each end of the right-angle U-shaped clamping rod 601. After the two limit blocks 602 are opened, the slurry guide groove 605 is 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 spacing 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 cast connection groove 201, and at the same time, a number of reinforcing ribs 3 are inserted into a number of through openings 4. Next, two right-angled U-shaped clamping rods 601 are respectively inserted into the side wing grooves 701 on both sides, so that the two right-angled ends of the right-angled U-shaped clamping rods 601 are respectively inserted into the right-angled 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-angled 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 cast 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 continued to be injected, and the slurry passes through the slurry distribution port 7. 03 enters the corresponding slurry inlet 604. Under the dynamic pressure of the slurry, the two limit blocks 602 move away and respectively insert into the corresponding limit grooves 702, thereby locking the right-angled 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-angled U-shaped clamping rod 601 and the side wing groove 701, so that the right-angled 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 pass through the multiple through-holes 2023 and then through the multiple injection ports 5 into the inner groove inside the multiple through-holes 4, so that the reinforcement ribs 3 and the first concrete bridge deck 101 are connected as one. The connection structure designed in this application secures the reinforcement ribs 3 more firmly within the inner groove, improving the stability of the connection. By providing locking edge members 6 and edge groove assemblies 7 at both ends of the adjacent first and second concrete bridge decks 101, 102, the first and second concrete bridge decks 101, 102 can be horizontally positioned during the secondary pouring connection, effectively preventing cracks and gaps in the concrete bridge decks, thereby ensuring the safety and service life of the composite beam precast concrete bridge decks.

[0053] The above 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 embodiments, those skilled in the art may make various alternative improvements and combinations of the above specific embodiments. The above specific embodiments are merely explanations of the present application and 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 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); The side groove assembly (7) includes 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 a limit groove (702), and the side locking member (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 to 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; The depth of the limiting groove (702) is half the width of the limiting block (602); The middle portions of both ends of the right-angled U-shaped clamping rod (601) are provided with slurry introduction openings (604), and the corners of the two limiting blocks (602) close to each other and close to the slurry introduction openings (604) are arc-shaped portions (603) to facilitate the inflow of concrete.

2. The composite beam precast concrete bridge deck connector structure according to claim 1, characterized in that: The casting connection groove (201) is provided with a plurality of openings (4), one end of the connection piece (202) is connected to a plurality of groups of reinforcing ribs (3), and the corresponding reinforcing ribs (3) can be inserted into the corresponding openings (4). The inner side of the opening (4) is provided with an inner groove having a diameter larger than that of the 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.

3. The composite beam precast concrete bridge deck connector structure according to claim 2, characterized in that: The connecting member (202) includes an inlay block (2021) connected to a side of the second concrete bridge deck (102) 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 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 both ends of the inlay block (2021) are 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).

4. 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) that 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).

5. The composite beam precast concrete bridge deck connector structure according to claim 4, 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).

6. The composite beam precast concrete bridge deck connector structure according to claim 1, characterized in that: Both ends of the right-angle U-shaped clamping rod (601) have inner walls 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 separation port (703).

7. The composite beam precast concrete bridge deck connector structure according to claim 1, 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).

8. The composite beam precast concrete bridge deck connector structure according to claim 3, characterized in that: After the engaging 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 spacing.

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