Culvert reinforcing assistive device

Abstract

The utility model relates to the technical field of culvert repairing and reinforcing, and discloses a culvert reinforcing assistive device which comprises two supporting reinforcing ribs arranged side by side. The connecting rods are vertically and fixedly connected between the two supporting reinforcing ribs, and the connecting rods are arranged at intervals in the length direction of the supporting reinforcing ribs; the formwork is fixedly connected to the lower portion of the supporting reinforcing rib, the two ends of the formwork are fixedly connected with the supporting reinforcing rib through first fasteners, and the middle of the formwork is fixedly connected with the connecting rod through second fasteners. According to the culvert reinforcing assistive device, the two supporting reinforcing ribs and the multiple connecting rods are arranged, and the formworks and the supporting reinforcing ribs are arranged, so that the problem that in the prior art, no connecting steel bars exist between the supporting reinforcing ribs, and consequently concrete connection is not tight is effectively solved. Meanwhile, due to the double fastening design of the two ends and the middle of the formwork, deformation of the formwork during concrete pouring is avoided, uniform distribution of materials of a repairing layer is guaranteed, and therefore the reinforcing quality is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of culvert repair and reinforcement technology, and in particular to a culvert reinforcement auxiliary tool. Background Technology

[0002] In the field of modern transportation infrastructure construction and maintenance, the application of culvert reinforcement accessories is of paramount importance. With the continuous development of the social economy, the construction of various highways, railways, and municipal engineering projects is constantly advancing, leading to a surge in the number of culverts. However, these culverts are susceptible to various factors during long-term use, such as uneven settlement of the surrounding soil, erosion by water flow, frequent vehicle loads, and environmental erosion, resulting in structural cracks, localized damage, and decreased overall stability, seriously threatening traffic safety and the service life of the infrastructure. Culvert reinforcement accessories have emerged to address this need. Their main function is to provide additional support and protection for culverts, enhancing the integrity and load-bearing capacity of the culvert structure, ensuring stable, safe, and long-term operation under complex geological conditions and operating environments.

[0003] Currently, although some related technical solutions have been proposed and applied in the field of culvert reinforcement, there are still many shortcomings. Taking the patent document with announcement number CN215890044U, entitled "A Tunnel and Culvert Reinforcement Auxiliary Equipment," as an example, this solution includes setting arc-shaped supporting reinforcing ribs extending from one side of the inner wall of the tunnel and culvert to the other side. Two supporting reinforcing ribs are arranged side by side, with multiple installation templates fixed between them. The space between the installation templates, the supporting reinforcing ribs, and the inner wall forms a space for filling the repair layer material. The installation templates are fixed to the supporting reinforcing ribs on both sides by bolts. The overall goal is to achieve convenient construction, reduced costs, and improvement of the defects of traditional corrugated plate reinforcement technology. However, after in-depth analysis of this solution, it is found that the existing technology still has obvious defects. First, there is a lack of connecting steel bars or other structures between the two supporting reinforcing ribs. This makes the connection tightness of the formed concrete poor in practical applications, and stress concentration or separation can easily occur between the supporting reinforcing ribs and the concrete, thus affecting the stability and reliability of the entire reinforcement structure and making it difficult to meet the requirements of culvert reinforcement effect under long-term complex stress conditions. Secondly, the two ends of the template are only connected to the supporting reinforcing bars, and there is no corresponding supporting structure in the middle. During the pouring of powdered concrete, due to the gravity of the concrete and the impact force during the pouring process, the middle of the template is very easy to deform, resulting in uneven distribution of the repair layer material, affecting the reinforcement quality, and may even cause local structural damage, increasing the safety hazards for subsequent use.

[0004] Given the shortcomings of the existing technologies, addressing these issues is particularly urgent and necessary. Utility Model Content

[0005] The present invention aims to provide a culvert reinforcement accessory to overcome the shortcomings mentioned above.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A culvert reinforcement accessory, comprising:

[0008] Two supporting reinforcing ribs arranged side by side;

[0009] A plurality of connecting rods are vertically fixedly connected between two supporting reinforcing ribs, and the plurality of connecting rods are spaced apart along the length direction of the supporting reinforcing ribs; and

[0010] A template is fixedly connected below the supporting reinforcing rib. The two ends of the template are fixedly connected to the supporting reinforcing rib by a first fastener, and the middle part of the template is fixedly connected to the connecting rod by a second fastener.

[0011] Furthermore, the connecting rod is a square tube, and two sets of shear studs are symmetrically arranged on the outer side wall of the connecting rod. Each set of shear studs includes multiple shear studs spaced apart along the length of the connecting rod. The shear studs are arranged horizontally and are fixedly connected to the connecting rod perpendicularly.

[0012] Furthermore, the connecting rod is provided with a plurality of through holes arranged in the vertical direction, and the plurality of through holes are spaced apart along the length direction of the connecting rod.

[0013] Furthermore, the second fastener is a second bolt and a second nut threadedly connected to the second bolt. The head of the second bolt is welded and fixed to the lower surface of the connecting rod, and the shank of the second bolt passes through the template and is threadedly connected to the second nut.

[0014] Furthermore, the supporting reinforcing rib is made of H-beam steel, and the middle part of the web of the supporting reinforcing rib is welded and fixed to the connecting rod.

[0015] Furthermore, a support pad is fixedly connected between the bottom flange plate of the supporting reinforcing rib and the connecting rod.

[0016] Furthermore, the lower end of the template is provided with a plurality of transverse support rods arranged parallel to the connecting rod, and the plurality of transverse support rods are spaced apart along the length direction of the supporting reinforcing rib; the lower end of the transverse support rod is provided with a plurality of longitudinal support rods arranged parallel to the supporting reinforcing rib, and the plurality of longitudinal support rods are spaced apart along the length direction of the connecting rod; the thread of the second bolt passes through the template, the transverse support rods and the longitudinal support rods in sequence and is threadedly connected to the second nut.

[0017] Furthermore, the first fastener is a first bolt and a first nut threadedly connected to the first bolt. The first bolt passes through the bottom flange plate template, the transverse support rod and the longitudinal support rod of the supporting reinforcing rib in sequence and is then threadedly connected to the first nut.

[0018] Furthermore, the top flange of the supporting reinforcing rib is provided with a connecting hole for connecting to the inner wall of the culvert.

[0019] Furthermore, the gaps between the template and the supporting reinforcement, as well as the gaps between the supporting reinforcement and the inner wall of the culvert, are filled with sealant, and the template is provided with a pouring port.

[0020] Compared with the prior art, this utility model has at least the following advantages:

[0021] This culvert reinforcement fixture effectively solves the problem of loose concrete connection caused by the lack of connecting steel bars between the supporting reinforcements in existing technologies, by setting up two supporting reinforcing bars and multiple connecting rods, as well as the connection between the formwork and the supporting reinforcing bars. The shear studs and through holes on the connecting rods allow concrete to enter the square tube through the through holes, significantly enhancing the bond strength and shear force transfer capacity between the concrete and the connecting rods, and improving the overall integrity and load-bearing capacity of the entire reinforcement structure.

[0022] Meanwhile, the double-fastening design at both ends and the middle of the formwork prevents deformation during concrete pouring, ensuring uniform distribution of the repair layer material, thereby improving reinforcement quality and reducing safety hazards. The use of support blocks and anchor bolts further enhances the stability of the support reinforcement and the connection strength with the culvert inner wall, providing more reliable support for the culvert. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the culvert reinforcement auxiliary tool of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the culvert reinforcement accessory of this utility model from another perspective.

[0026] Reference numerals: 1. Supporting stiffener; 2. Connecting rod; 3. Template; 4. Shear stud; 5. Through hole; 6. Second bolt; 7. Second nut; 8. Support pad; 9. Transverse support rod; 10. Longitudinal support rod; 11. First bolt; 12. First nut; 13. Connecting hole; 14. Pouring port. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-2 This utility model provides a culvert reinforcement accessory, including a supporting reinforcing rib 1, a connecting rod 2, a template 3, a first fastener, and a second fastener.

[0030] The supporting reinforcing rib 1 consists of two ribs arranged side-by-side, made of H-beams, with their webs welded to the connecting rod 2 in the middle. This connection method ensures the structural stability. A supporting pad 8 is cleverly fixed between the bottom flange of the supporting reinforcing rib 1 and the connecting rod 2, further enhancing the stability of the connection. Simultaneously, the top flange of the supporting reinforcing rib 1 is provided with connecting holes 13 for a tight connection to the inner wall of the culvert, such as through anchor bolts or other devices, to achieve a secure installation of the entire auxiliary fixture.

[0031] Multiple connecting rods 2, made of square tubing, are vertically fixed between two supporting reinforcing ribs 1 and evenly spaced along the length of the supporting reinforcing ribs 1. Two sets of shear studs 4 are symmetrically arranged on the outer wall of the connecting rods 2, each set consisting of multiple shear studs 4 spaced apart along the length of the connecting rod 2. These shear studs 4 are horizontally positioned and welded perpendicularly to the connecting rods 2, significantly improving the shear force transfer capacity between the connecting rods 2 and the concrete.

[0032] Template 3 is fixed below the supporting reinforcing rib 1. Its two ends are connected to the supporting reinforcing rib 1 via first fasteners, while its middle part is connected to the connecting rod 2 via a second fastener. The first fastener consists of a first bolt 11 and a first nut 12. The first bolt 11 passes sequentially through the bottom flange plate of the supporting reinforcing rib 1, template 3, transverse supporting rod 9, and longitudinal supporting rod 10, and is finally tightened to the first nut 12. The second fastener consists of a second bolt 6 and a second nut 7. The head of the second bolt 6 is welded to the lower surface of the connecting rod 2, and its threaded portion passes sequentially through the template 3, transverse supporting rod 9, and longitudinal supporting rod 10, before being tightened to the second nut 7.

[0033] In a preferred embodiment of this utility model, each bolt 6 is threaded with two second nuts 7, which are located above the template 3 and below the longitudinal support rod 10, respectively, thereby improving the stability of the connection in the middle of the template 3.

[0034] It should be noted that this utility model is mainly applicable to the reinforcement of culverts with a U-shaped structure, and the supporting reinforcing rib 1 is straight. For example, when reinforcing and repairing the top surface of the culvert, the length of the supporting reinforcing rib 1 is equal to the width of the culvert. The two ends of the template 3 are sealed by the side walls of the culvert. Two supporting reinforcing ribs 1 are set along the longitudinal direction of the culvert. The spacing between the two supporting reinforcing ribs 1 should not be too large, preferably 0.5m-2m.

[0035] How to use this utility model:

[0036] At the culvert reinforcement site, the original culvert inner wall was first treated by removing surface scum and dust, repairing cracks, anchoring and sealing the detached parts with mesh, and then roughening the base surface to enhance the adhesion between the old and new structures.

[0037] Based on the cross-sectional dimensions of the culvert, the culvert reinforcement accessories are pre-assembled. Two H-beam steel support reinforcing ribs 1 are arranged side by side and connected into a single frame using connecting rods 2 and shear studs 4. A template 3 is installed below the support reinforcing ribs 1 and secured to the support reinforcing ribs 1 and connecting rods 2 using first and second fasteners. During the connection process, ensure that the sealant between the template 3, the support reinforcing ribs 1, and the connecting rods 2 is completely filled to form a sealed pouring space.

[0038] The assembled culvert reinforcement accessories are hoisted to the predetermined position on the inner wall of the culvert. Anchor bolts are used to secure them to the inner wall through the connection holes 13 on the top flange plate of the supporting reinforcing rib 1. A pouring inlet 14 is set on the formwork 3, and the reactive powder concrete is poured in. The reactive powder concrete should be poured evenly from the pouring inlet 14 until the entire enclosed space is filled. During the pouring process, the outside of the formwork 3 is continuously tapped to expel air bubbles from the concrete and ensure its compactness.

[0039] After the concrete has cured to a certain strength, remove formwork 3, remove the first fastener and the second nut, expose the second nut 7 on formwork 3 for cutting and grinding, clean the site, and complete the reinforcement work of the culvert.

[0040] This culvert reinforcement fixture effectively solves the problem of loose concrete connection caused by the lack of connecting steel bars between the supporting reinforcing bars 1 in existing technologies, by setting two supporting reinforcing bars 1 and multiple connecting rods 2, as well as the formwork 3 and the supporting reinforcing bars 1. The design of shear nails 4 and through holes 5 on the connecting rods 2 allows concrete to enter the square tube through the through holes 5, which significantly enhances the bonding force and shear force transfer capacity between the concrete and the connecting rods 2, and improves the integrity and load-bearing capacity of the entire reinforcement structure.

[0041] Meanwhile, the double-fastening design at both ends and the middle of template 3 prevents deformation of template 3 during concrete pouring, ensuring the uniform distribution of the repair layer material, thereby improving the reinforcement quality and reducing safety hazards. The use of support pads 8 and anchor bolts further enhances the stability of the support reinforcing rib 1 and the connection strength with the inner wall of the culvert, providing more reliable support for the culvert.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A culvert reinforcement accessory, characterized in that, include: Two side-by-side supporting stiffeners (1); Multiple connecting rods (2) are vertically fixed between two supporting reinforcing ribs (1), and the multiple connecting rods (2) are spaced apart along the length direction of the supporting reinforcing ribs (1); as well as A template (3) is fixedly connected below the supporting reinforcing rib (1). The two ends of the template (3) are fixedly connected to the supporting reinforcing rib (1) by the first fastener, and the middle part of the template (3) is fixedly connected to the connecting rod (2) by the second fastener.

2. The culvert reinforcement accessory according to claim 1, characterized in that, The connecting rod (2) is a square tube. Two sets of shear nails (4) are symmetrically arranged on the outer side wall of the connecting rod (2). Each set of shear nails (4) includes multiple shear nails (4) spaced apart along the length of the connecting rod (2). The shear nails (4) are arranged in the horizontal direction and are vertically fixed to the connecting rod (2).

3. The culvert reinforcement accessory according to claim 2, characterized in that, The connecting rod (2) is provided with a plurality of through holes (5) arranged in the vertical direction, and the plurality of through holes (5) are spaced apart along the length direction of the connecting rod (2).

4. The culvert reinforcement accessory according to claim 3, characterized in that, The second fastener is a second bolt (6) and a second nut (7) threadedly connected to the second bolt (6). The head of the second bolt (6) is welded and fixed to the lower surface of the connecting rod (2). The shank of the second bolt (6) passes through the template (3) and is threadedly connected to the second nut (7).

5. The culvert reinforcement accessory according to claim 4, characterized in that, The material of the supporting reinforcing rib (1) is H-beam steel, and the middle part of the web of the supporting reinforcing rib (1) is welded and fixed to the connecting rod (2).

6. The culvert reinforcement accessory according to claim 5, characterized in that, A support pad (8) is fixedly connected between the bottom flange plate of the support reinforcing rib (1) and the connecting rod (2).

7. The culvert reinforcement accessory according to claim 6, characterized in that, The template (3) is provided with a plurality of transverse support rods (9) arranged parallel to the connecting rod (2) at the lower end. The plurality of transverse support rods (9) are spaced apart along the length direction of the supporting reinforcing rib (1). The lower end of the transverse support rod (9) is provided with a plurality of longitudinal support rods (10) arranged parallel to the supporting reinforcing rib (1). The plurality of longitudinal support rods (10) are spaced apart along the length direction of the connecting rod (2). The screw of the second bolt (6) passes through the template (3), the transverse support rods (9) and the longitudinal support rods (10) in sequence and is threadedly connected to the second nut (7).

8. The culvert reinforcement accessory according to claim 7, characterized in that, The first fastener is a first bolt (11) and a first nut (12) threadedly connected to the first bolt (11). The first bolt (11) passes through the bottom flange plate template (3), the transverse support rod (9) and the longitudinal support rod (10) of the support reinforcing rib (1) in sequence and is then threadedly connected to the first nut (12).

9. The culvert reinforcement accessory according to claim 8, characterized in that, The top flange of the supporting reinforcing rib (1) is provided with a connecting hole (13) for connecting with the inner wall of the culvert.

10. The culvert reinforcement accessory according to any one of claims 1 to 9, characterized in that, The gap between the template (3) and the supporting reinforcing rib (1), as well as the gap between the supporting reinforcing rib (1) and the inner wall of the culvert, are filled with sealant. The template (3) is provided with a pouring port (14).

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