Combined bridge guardrail transformation structure

Abstract

The utility model relates to a combined bridge guardrail transformation structure which comprises an old guardrail wall body and a ribbed plate assembly. A ribbed plate assembly is arranged at the top of the old guardrail wall body and comprises a bottom plate, an inclined side plate and a vertical plate, the bottom plate is installed at the top end of the old guardrail wall body, the inclined side plate is installed at the top of one side of the old guardrail wall body, the top of the inclined side plate is connected with the bottom of the bottom plate in an attached mode, and the vertical plate is installed on the bottom plate and perpendicularly connected with the bottom plate. A plurality of transverse protruding strips and a plurality of vertical protruding strips are arranged on the side face of the vertical plate, and the transverse protruding strips and the vertical protruding strips are perpendicularly connected. The ribbed plate assembly is directly added under the condition that an old guardrail wall structure is not dismantled, the protection height of the guardrail is increased through the ribbed plate assembly, and therefore the safety protection capacity of the guardrail is improved, construction is simplified, materials are saved, cost is reduced, and the construction deployment and control duration is shortened, and meanwhile the safety protection capacity of the guardrail is improved. And the protection height and the protection capability of the modified guardrail are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway safety protection, in particular to a combined bridge guardrail reconstruction structure. Background Technique

[0002] The combined guardrail of expressway bridges is the main form of bridge guardrails, which is a continuous guardrail structure composed of concrete bases and steel handrails.

[0003] After long-term service, some steel components of the in-service combined bridge guardrail are severely corroded, the height of the concrete base is relatively low, and the protection ability is insufficient. It is necessary to improve its protection ability. However, in the prior art, the reconstruction scheme for the original guardrail is relatively complex, requiring a large variety and specifications of reserved materials and a large number of concrete guardrail templates, resulting in complicated construction, increased construction costs, long construction layout time, great impact on traffic, and large subsequent maintenance construction and management difficulties.

[0004] Based on this, in order to improve the protection ability of the old combined bridge guardrail and effectively utilize the original guardrail structure, this application provides a combined bridge guardrail reconstruction structure to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a combined bridge guardrail reconstruction structure to solve the technical problems in the above background technique that the reconstruction scheme for the original guardrail in the prior art is relatively complex, requiring a large variety and specifications of reserved materials and a large number of concrete guardrail templates, resulting in complicated construction, increased construction costs, long construction layout time, great impact on traffic, and large subsequent maintenance construction and management difficulties.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A combined bridge guardrail reconstruction structure includes an old guardrail wall body. A ribbed plate assembly is arranged at the top of the old guardrail wall body. The ribbed plate assembly includes a bottom plate, an inclined side plate and a vertical plate. The bottom plate is installed at the top end of the old guardrail wall body. The inclined side plate is installed at the top of one side of the old guardrail wall body. The top of the inclined side plate is in fitting connection with the bottom of the bottom plate. The vertical plate is installed on the bottom plate and is vertically connected to the bottom plate;

[0008] A plurality of horizontal ridges and a plurality of vertical ridges are arranged on the side surface of the vertical plate, and the plurality of horizontal ridges and the plurality of vertical ridges are vertically connected.

[0009] As a preferred scheme, a baffle is arranged on the vertical plate. The baffle is vertically connected to the vertical plate. The baffle and the horizontal ridges and the vertical ridges are on the same side. The baffle is parallel to the horizontal ridges.

[0010] As a preferred solution, mounting holes are provided on both the bottom plate and the inclined side plate.

[0011] As a preferred solution, the bottom plate and the old guardrail wall are fixedly connected by expansion bolts.

[0012] As a preferred solution, the inclined side plate and the old guardrail wall are fixedly connected by high-strength bolts. One end of the high-strength bolt is fixed on the inclined side plate, and the other end of the high-strength bolt extends and is fixed on the other side of the old guardrail wall.

[0013] As a preferred solution, the ribbed plate assembly is made of UHPC material.

[0014] It can be seen from the technical solution provided by the present utility model above that a combined bridge guardrail reconstruction structure provided by the present utility model has the following beneficial effects compared with the prior art:

[0015] The combined bridge guardrail reconstruction structure provided by this application directly adds a ribbed plate assembly without demolishing the structure of the old guardrail wall, saving materials, simplifying construction, and reducing costs. The use of the ribbed plate assembly increases the protection height of the guardrail. The combination of the bottom plate and the inclined side plate improves the wrapping property of the ribbed plate assembly on the top and the impact surface of the old guardrail wall. And a plurality of horizontally and vertically connected horizontal rib protrusions and vertical rib protrusions are provided on the vertical plate, which play a role similar to that of a reinforcing rib, thereby improving the safety protection ability of the guardrail. Therefore, while simplifying construction, saving materials, reducing costs, and shortening the construction control time, the protection height and protection ability of the reconstructed guardrail are improved;

[0016] The setting of the baffle increases the integrity of the guardrail. When a vehicle hits the guardrail, the baffle on the vertical plate can prevent the vehicle from overturning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the combined bridge guardrail reconstruction structure provided by an embodiment of the present utility model;

[0018] Figure 2 It is a front view of the combined bridge guardrail reconstruction structure provided by an embodiment of the present utility model;

[0019] Figure 3 It is a top view of the combined bridge guardrail reconstruction structure provided by an embodiment of the present utility model.

[0020] In the figure: 1. Old guardrail wall; 2. Ribbed plate assembly; 21. Bottom plate; 22. Inclined side plate; 23. Vertical plate; 24. Horizontal rib protrusion; 25. Vertical rib protrusion; 26. Baffle; 3. Mounting hole; 4. Expansion bolt; 5. High-strength bolt; 6. Bridge deck paving; 7. Driving lane slab. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0025] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0026] Please refer to Figures 1 to 3 , an embodiment of the present application provides a combined bridge guardrail renovation structure, including an old guardrail wall body 1 and a ribbed plate assembly 2. A ribbed plate assembly 2 is provided at the top of the old guardrail wall body 1. The ribbed plate assembly 2 includes a bottom plate 21, an inclined side plate 22 and a vertical plate 23. The bottom plate 21 is installed at the top end of the old guardrail wall body 1. The inclined side plate 22 is installed at the top of one side of the old guardrail wall body 1. The top of the inclined side plate 22 is in fitting connection with the bottom of the bottom plate 21. The vertical plate 23 is installed on the bottom plate 21 and is perpendicularly connected to the bottom plate 21. A plurality of horizontal ridges 24 and a plurality of vertical ridges 25 are provided on the side surface of the vertical plate 23, and the plurality of horizontal ridges 24 and the plurality of vertical ridges 25 are perpendicularly connected.

[0027] Working principle and effect: After roughening the top and side (impact-facing surface) of the old guardrail wall 1, a ribbed plate assembly 2 is directly added to the old guardrail wall 1. Specifically, the bottom plate 21 is installed on the top surface of the old guardrail wall 1, the inclined side plate 22 is installed on the side (impact-facing surface) of the old guardrail wall 1, the vertical plate 23 is vertically installed on the bottom plate 21, and the side of the vertical plate 23 with the transverse ridges 24 and vertical ridges 25 is oriented towards the impact-facing surface of the old guardrail wall 1, then the installation is completed.

[0028] Compared with the prior art, for the combined bridge guardrail renovation structure provided by this application, the ribbed plate assembly 2 is directly added without demolishing the structure of the old guardrail wall 1, which simplifies the construction, saves materials, reduces costs, and shortens the construction control time. At the same time, the overall height of the guardrail is increased by using the ribbed plate assembly 2, improving the protection height of the guardrail. The combination of the bottom plate 21 and the inclined side plate 22 improves the wrapping property of the ribbed plate assembly 2 on the top and impact-facing surface of the old guardrail wall 1, and multiple vertically connected transverse ridges and vertical ridges 25 are provided on the vertical plate 23, playing a role similar to that of reinforcing ribs, thereby improving the safety protection ability of the guardrail. Therefore, while simplifying the construction, saving materials, and reducing costs, the protection height and protection ability of the renovated guardrail are improved.

[0029] In one embodiment, as Figure 1 shown, a baffle 26 is provided on the vertical plate 23. The baffle 26 is perpendicularly connected to the vertical plate 23. The baffle 26, the transverse ridge 24, and the vertical ridge 25 are located on the same side, and the baffle 26 is parallel to the transverse ridge 24. This increases the integrity of the guardrail. When a vehicle hits the guardrail, the baffle 26 on the vertical plate 23 can prevent the vehicle from overturning.

[0030] Furthermore, as Figure 1 or Figure 2 shown, two baffles 26 are provided. The two baffles 26 are respectively arranged at the top and middle of the vertical plate 23. Two transverse ridges 24 are provided. The two transverse ridges 24 are respectively arranged below the two baffles 26, and multiple equally spaced vertical ridges 25 are vertically arranged on the two transverse ridges 24. With this setting, the two baffles 26 divide the raised vertical plate 23 into two parts, and each part is provided with transverse ridges 24 and vertical ridges 25. The structure is compact, improving the integrity of the ribbed plate assembly 2 and enhancing the protection ability of the ribbed plate assembly 2.

[0031] In one embodiment, as Figure 2 and Figure 3 shown, mounting holes 3 are provided on both the bottom plate 21 and the inclined side plate 22. The provision of mounting holes 3 on both the bottom plate 21 and the inclined side plate 22 facilitates the fixed installation of the bottom plate 21 and the inclined side plate 22.

[0032] In one embodiment, asFigure 1 As shown, the bottom plate 21 is fixedly connected to the old guardrail wall 1 by expansion bolts 4. The expansion bolts 4 are vertically inserted into the old guardrail wall 1 from above the bottom plate 21 through the mounting holes 3 on the bottom plate 21, so that the bottom plate 21 is fixed on the old guardrail wall 1, thereby realizing the vertical connection and fixation of the new and old structures.

[0033] In one embodiment, as Figure 1 shown, the inclined side plate 22 is fixedly connected to the old guardrail wall 1 by high-strength bolts 5. One end of the high-strength bolt 5 is fixed on the inclined side plate 22, and the other end of the high-strength bolt 5 extends and is fixed on the other side of the old guardrail wall 1. The high-strength bolt 5 is inserted into the old guardrail wall 1 horizontally from the inclined side plate 22 through the mounting hole 3 on the inclined side plate 22 and penetrates to the other side of the old guardrail wall 1, so that the inclined side plate 22 is fixed on the old guardrail wall 1, thereby realizing the horizontal connection and fixation of the new and old structures.

[0034] In one embodiment, the ribbed plate assembly 2 is made of UHPC material. UHPC, namely Ultra-High Performance Concrete, is a cement-based engineering material with ultra-high durability and ultra-high mechanical properties (compressive strength, tensile strength and high toughness). UHPC consists of two parts: fiber and matrix, where the matrix is high-density ultra-high-strength mortar or concrete. It can be regarded as the engineering material with the best durability. The mechanical properties of appropriately reinforced UHPC are close to those of steel structures. At the same time, UHPC has excellent wear resistance and explosion resistance. Therefore, UHPC is particularly suitable for long-span bridges, explosion-resistant structures (such as military projects, bank vaults, etc.) and thin-walled structures, as well as for use in high-abrasion and high-corrosion environments.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined bridge guardrail reconstruction structure, comprising an old guardrail wall (1), characterized in that: A ribbed plate assembly (2) is arranged on the top of the old guardrail wall (1), and the ribbed plate assembly (2) comprises a bottom plate (21), an inclined side plate (22) and a vertical plate (23), wherein the bottom plate (21) is installed on the top of the old guardrail wall (1), the inclined side plate (22) is installed on the top of one side of the old guardrail wall (1), the top of the inclined side plate (22) and the bottom of the bottom plate (21) are fitted and connected, the vertical plate (23) is installed on the bottom plate (21), and the vertical plate (23) is vertically connected to the bottom plate (21); A plurality of transverse ridges (24) and a plurality of vertical ridges (25) are provided on the side surface of the vertical plate (23), and the plurality of transverse ridges (24) and the plurality of vertical ridges (25) are vertically connected.

2. The combined bridge guardrail reconstruction structure according to claim 1 is characterized in that: A baffle (26) is provided on the vertical plate (23), the baffle (26) is vertically connected to the vertical plate (23), the baffle (26) and the transverse convex strip (24) and the vertical convex strip (25) are located on the same side, and the baffle (26) is parallel to the transverse convex strip (24).

3. The combined bridge guardrail reconstruction structure according to claim 1 is characterized in that: The bottom plate (21) and the inclined side plate (22) are both provided with mounting holes (3).

4. The combined bridge guardrail reconstruction structure according to claim 1 is characterized in that: The bottom plate (21) and the old guardrail wall (1) are fixedly connected by expansion bolts (4).

5. The combined bridge guardrail reconstruction structure according to claim 1 is characterized in that: The inclined side plate (22) and the old guardrail wall (1) are fixedly connected by high-strength bolts (5), one end of the high-strength bolt (5) is fixed to the inclined side plate (22), and the other end of the high-strength bolt (5) is extended and fixed to the other side of the old guardrail wall (1).

6. The combined bridge guardrail reconstruction structure according to claim 1 is characterized in that: The ribbed plate assembly (2) is made of UHPC material.

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