Covering structure for precast beam body wet joint

By setting a combined structure of cover plate and support components at the wet joint, and using the support legs to abut against the precast beam, the problem of rotation and displacement of the cover plate at the wet joint is solved, ensuring structural stability and avoiding damage near the wet joint.

CN223633777UActive Publication Date: 2025-12-05CHINA RAILWAY BRIDGE BUREAU NO 7 ENG CO LTD +1
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Patent Information

Application Number
CN202423240365.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-05
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

In the prior art, during bridge construction, the cover plate at the wet joint between precast components or between precast components is prone to rotation and displacement after repeated loading by vehicles. This leads to structural damage near the wet joint.

Method used

The technical problem of adopting a combined structure of cover plate and support assembly, with both ends of the cover plate and the support assembly being slidably disposed at the wet joint, is addressed. The support assembly includes a cover plate and a support assembly slidably disposed at the wet contact head. The support assembly includes two support legs spaced apart along the length of the cover plate. The support legs are slidably disposed below the cover plate and abut against the precast beams on both sides of the wet joint. The support assembly includes an adjusting rod for adjusting the spacing between the support legs to ensure the stability of the cover plate.

Benefits of technology

It effectively prevents the cover plate from rotating at the wet joint, avoids displacement, and protects the structure near the wet joint from damage.

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Abstract

The utility model discloses a covering structure for a wet joint of a precast beam body, and relates to the technical field of bridge construction, the covering structure comprises a cover plate and at least one supporting assembly, the two ends of the cover plate are used for being in lap joint with precast beams on the two sides of the wet joint; the supporting assemblies are used for being arranged at the position of a wet joint, each supporting assembly comprises two supporting legs which are arranged in the length direction of the cover plate in a spaced mode, and the two supporting legs are arranged below the cover plate in a sliding mode and abut against precast beams on the two sides of the position of the wet joint. At least one supporting assembly is arranged, each supporting assembly comprises two supporting legs which are arranged in the length direction of the cover plate in a spaced mode, the two supporting legs are arranged below the cover plate in a sliding mode and abut against the precast beams on the two sides of the wet joint, and after the two supporting legs abut against the precast beams on the two sides of the wet joint, the precast beams on the two sides of the wet joint are supported by the two supporting legs. The cover plate can be prevented from rotating at the wet joint, displacement is not prone to occurring, and structural damage near the wet joint is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field, especially relate to a covering structure for precast beam body wet joint. BACKGROUND

[0002] The connecting part is called a wet joint. At present, in the bridge construction site, the wet joint position mainly uses ordinary steel plates to overlap the precast beams on both sides of the wet joint position. In actual construction application, the ordinary steel plates are prone to rotating displacement after repeated loading of vehicles, and if not reset in time, the structure near the wet joint is prone to damage. SUMMARY

[0003] The utility model discloses a covering structure for precast beam body wet joint, which solves the technical problem that the prior art in the related art mainly uses ordinary steel plates to overlap the precast beams on both sides at the wet joint, and the ordinary steel plates are prone to rotating displacement after repeated loading of vehicles.

[0004] In a first aspect, a covering structure for precast beam body wet joint is provided, comprising:

[0005] A cover plate, both ends of the cover plate are used to overlap the precast beams on both sides at the wet joint;

[0006] At least one support assembly is arranged at the wet joint, each support assembly comprises two support legs arranged at intervals along the length direction of the cover plate, and the two support legs are slidably arranged below the cover plate and abut against the precast beams on both sides at the wet joint.

[0007] In some embodiments, the bottom end of the cover plate is provided with a sliding rail corresponding to the support assembly, and the two support legs are slidably arranged in the sliding rail.

[0008] In some embodiments, each support assembly further comprises:

[0009] An adjusting rod is arranged between the two support legs, and the adjusting rod is used to adjust the distance between the two support legs, so that the two support legs abut against the precast beams on both sides at the wet joint.

[0010] In some embodiments, each support leg comprises:

[0011] A vertical support plate;

[0012] A horizontal connecting plate is arranged at the top end of the vertical support plate, and the horizontal connecting plate is slidably arranged in the sliding rail.

[0013] In some embodiments, the inner side of each vertical support plate is provided with a screw rod, and the two ends of the adjusting rod are respectively threadedly connected with a screw rod.

[0014] In some embodiments, each support leg further comprises:

[0015] two stiffening plates, and the two stiffening plates are arranged on both sides of the vertical support plate.

[0016] In some embodiments, the support assembly is two, and the two support assemblies are arranged in the width direction of the cover plate.

[0017] In some embodiments, the cover plate is provided with an inclined block on both sides.

[0018] In some embodiments, the difference in height between the bottom surface of the cover plate and the bottom surface of the inclined block is greater than the height of the leveling layer U-shaped steel embedded in the top of the prefabricated beam.

[0019] In some embodiments, the cover plate and the support assembly are made of steel material.

[0020] The beneficial effects brought by the technical scheme of the utility model include:

[0021] The utility model embodiment provides a kind of covering structure for prefabricated beam body wet joint, it is provided with at least one support assembly, each support assembly includes two support legs arranged in the length direction of the cover plate, and the two support legs are slidably arranged below the cover plate and are in abutment with the prefabricated beam on both sides of wet joint, when the two support legs are in abutment with the prefabricated beam on both sides of wet joint, it can prevent cover plate from rotating at wet joint, and it is not easy to displace, to avoid the structure damage near wet joint. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0023] Figure 1 A use schematic diagram of the covering structure for prefabricated beam body wet joint provided by the utility model embodiment is shown in the following figure:

[0024] Figure 2 The schematic diagram of support assembly provided by the utility model embodiment is shown in the following figure:

[0025] Figure 3 The schematic diagram of cover plate provided by the utility model embodiment is shown in the following figure:

[0026] Figure 4 A schematic view of a support leg is provided for the embodiment of the utility model;

[0027] Figure 5 A perspective view of a covering structure for a precast beam body wet joint is provided for the embodiment of the utility model;

[0028] In the drawing:

[0029] 1, cover plate; 11, sliding rail; 12, blocking strip;

[0030] 2, support assembly; 21, support leg; 211, vertical support plate; 2111, screw rod; 212, horizontal connecting plate; 213, stiffener; 22, adjusting rod;

[0031] 3, oblique block;

[0032] 4, wet joint;

[0033] 5, precast beam. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0035] The embodiment of the utility model provides a covering structure for a precast beam body wet joint, which can solve the technical problem that the existing technology mainly uses ordinary steel plates to lap the precast beams on both sides at the wet joint, and the vehicle is prone to rotating displacement after repeated loading.

[0036] Referring to Figure 1 and Figure 2 The embodiment of the utility model provides a covering structure for a precast beam body wet joint, which comprises a cover plate 1 and at least one support assembly 2.

[0037] Both ends of the cover plate 1 are used for lapping the precast beams on both sides at the wet joint. The support assembly 2 is used to be arranged at the wet joint, and each support assembly 2 comprises two support legs 21 arranged at intervals along the length direction of the cover plate 1. The two support legs 21 are slidably arranged below the cover plate 1 and abut against the precast beams 5 on both sides at the wet joint 4.

[0038] The utility model discloses a cover structure for the wet joint of the precast beam body, which is provided with at least one supporting assembly, each supporting assembly comprises two supporting legs arranged at intervals along the length direction of the cover plate, and the two supporting legs are slidably arranged below the cover plate and abut against the precast beams on both sides of the wet joint.

[0039] As an optional embodiment, in one utility model embodiment, referring to FIG. Figure 3 The bottom end of the cover plate 1 is provided with a sliding rail 11 corresponding to the supporting assembly 2, and the two supporting legs 21 are slidably arranged in the sliding rail 11. A channel steel can be welded at the bottom end of the cover plate 1 to form the sliding rail 11, and the two supporting legs 21 can slide horizontally after being connected to the sliding rail 11. Optionally, a blocking strip 12 can be arranged at a predetermined distance apart from both ends of the sliding rail 11, which can prevent the supporting legs 21 from sliding out.

[0040] As an optional embodiment, in one utility model embodiment, referring to FIG. Figure 2 Each supporting assembly 2 further comprises an adjusting rod 22 arranged between the two supporting legs 21, which is used to adjust the distance between the two supporting legs 21 so that the two supporting legs 21 abut against the precast beams on both sides of the wet joint.

[0041] Further, referring to FIG. Figure 4 Each supporting leg 21 comprises a vertical supporting plate 211 and a horizontal connecting plate 212. The horizontal connecting plate 212 is arranged at the top end of the vertical supporting plate 211 and is slidably arranged in the sliding rail 11. The width of the horizontal connecting plate 212 is greater than that of the vertical supporting plate 211, and the excess part is clamped in the sliding rail 11, so that the supporting leg 21 can slide along the sliding rail 11.

[0042] Further, referring to FIG. Figure 4 The inner side of each vertical supporting plate 211 is provided with a screw 2111, and the two ends of the adjusting rod 22 are respectively threadedly connected with the screw 2111. The adjusting rod 22 is provided with an internal thread, and the thread directions of the corresponding two screws 2111 are opposite. The adjusting rod 22 can adjust the distance between the two supporting legs 21, so that the minimum distance between the two supporting legs 21 can be less than or equal to the minimum width of the wet joint, and the maximum distance can be greater than the maximum width of the wet joint, thereby ensuring that the cover plate 1 can be tightly supported at the wet joint.

[0043] As an optional implementation, in one utility model embodiment, referring to Fig. 1, the support leg 21 comprises a vertical support plate 211 and a horizontal support plate 212. Figure 4 As shown in the figure, the support leg 21 further comprises two stiffening plates 213, which are arranged on both sides of the vertical support plate 211. The two stiffening plates 213 are triangular in shape, and the height of the stiffening plate 213 is the same as that of the vertical support plate 211, which can strengthen the bending moment of the vertical support plate 211 and avoid excessive deformation of the vertical support plate 211 under stress. The two stiffening plates 213 can be welded with the vertical support plate 211.

[0044] As an optional implementation, in one utility model embodiment, referring to Fig. 1, the support leg 21 comprises a vertical support plate 211 and a horizontal support plate 212. Figure 5 As shown in the figure, the support assembly 2 is two, which are arranged along the width direction of the cover plate 1. The two support assemblies 2 are equivalent to four support legs 21, which form support at four points of the wet joint, and can prevent the cover plate 1 from rotating at the wet joint.

[0045] As an optional implementation, in one utility model embodiment, referring to Fig. 1, the support leg 21 comprises a vertical support plate 211 and a horizontal support plate 212. Figure 1 As shown in the figure, the cover plate 1 is provided with inclined blocks 3 on both sides, which are convenient for people or vehicles to move up and down.

[0046] Further, the height difference between the bottom surface of the cover plate 1 and the bottom surface of the inclined block 3 is greater than the height of the leveling layer U-shaped steel bar pre-embedded at the top of the precast beam, which can avoid the cover plate 1 being uneven due to the steel bar and affecting use.

[0047] As an optional implementation, in one utility model embodiment, the cover plate 1 and the support assembly 2 are made of steel material, which ensures the structural strength.

[0048] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, structure and operation, therefore it cannot be understood as a limitation on the utility model. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0049] It should be noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0050] The above description is merely that of the specific embodiments of the present application, to enable a person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cover structure for a precast beam body wet joint, characterized by, The utility model relates to a cover structure for the wet joint of a prefabricated beam body, comprising: a cover plate (1) having two ends for overlapping on the prefabricated beams (5) on both sides of the wet joint (4); at least one support assembly (2) arranged at the wet joint (4), each of the support assemblies (2) comprising two support legs (21) arranged at intervals along the length direction of the cover plate (1), and the two support legs (21) being slidably arranged below the cover plate (1) and abutting against the prefabricated beams (5) on both sides of the wet joint (4).

2. The cover structure for the wet joint of a prefabricated beam body according to claim 1, wherein: the bottom end of the cover plate (1) is provided with a slide rail (11) corresponding to the support assembly (2), and the two support legs (21) are slidably arranged in the slide rail (11).

3. A cover structure for a precast beam body wet joint according to claim 2, characterized in that, each of the support assemblies (2) further comprises: an adjusting rod (22) arranged between the two support legs (21), the adjusting rod (22) being used for adjusting the distance between the two support legs (21) so that the two support legs (21) abut against the prefabricated beams (5) on both sides of the wet joint.

4. The cover structure for a precast beam body wet joint according to claim 3, characterized in that, each of the support legs (21) comprises: a vertical support plate (211); a horizontal connecting plate (212) arranged at the top end of the vertical support plate (211), the horizontal connecting plate (212) being slidably arranged in the slide rail (11).

5. The cover structure for the wet joint of a prefabricated beam body according to claim 4, wherein: the inner side of each of the vertical support plates (211) is provided with a screw rod (2111), and the two ends of the adjusting rod (22) are respectively threadedly connected with the screw rods (2111).

6. The cover structure for a precast beam body wet joint according to claim 4, wherein each of the support legs (21) further comprises: two stiffening plates (213) arranged on both sides of the vertical support plate (211).

7. The cover structure for the wet joint of a prefabricated beam body according to claim 1, wherein: the support assemblies (2) are two, and the two support assemblies (2) are arranged at intervals along the width direction of the cover plate (1).

8. The cover structure for a precast beam body wet joint according to claim 1, characterized in that: the cover plate (1) is provided with inclined blocks (3) on both sides.

9. The cover structure for the wet joint of a prefabricated beam body according to claim 8, wherein: the difference in height between the bottom surface of the cover plate (1) and the bottom surface of the inclined blocks (3) is greater than the height of the leveling layer U-shaped steel bars embedded in the top of the prefabricated beams (5).

10. The cover structure for a precast beam body wet joint according to claim 1, characterized in that: the cover plate (1) and the support assemblies (2) are both made of steel.