Road and bridge safety protection guardrail

Abstract

The utility model relates to a road bridge safety protection guardrail, which belongs to the field of bridge engineering, and comprises a concrete protection body, and the upper surface and the outer side surface of the concrete protection body are planes; the steel structure protection body comprises a plurality of stand columns which are arranged in parallel at intervals, the stand columns are connected through horizontal protection rods, the lower end of each stand column is provided with an L-shaped notch, the upper surface of each L-shaped notch is attached to the upper surface of the concrete protection body, and the side face of each L-shaped notch is attached to the outer side wall of the concrete protection body; the connecting part is connected between the stand column and the concrete protection body, the concrete protection body and the steel structure protection body are matched to form a protection guardrail structure, the L-shaped notches are attached to the upper surface and the outer side wall of the concrete protection body, and when the steel structure protection body is subjected to external impact, the steel structure protection body can be prevented from being damaged except that the firmness of the steel structure protection body is enhanced through bolts; once deformation occurs, the L-shaped notches can tightly abut against the outer side wall of the concrete protection body to reduce deformation of the steel structure protection body.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering, and in particular to a road and bridge safety guardrail. Background Technology

[0002] Bridge guardrails are railings installed on bridges to prevent out-of-control vehicles from going off the bridge. Bridge guardrails come in various forms, but most are metal steel structures. For example, patent CN220847090U discloses a bridge guardrail steel structure that is easy to assemble. It mainly includes an upper crossbar, a support base, a transition plate, and a lower crossbar. To facilitate assembly, the upper crossbar is slidably installed on the inner top wall of the support base. The transition plate is detachably installed inside the support base. The lower crossbars are fixedly installed at equal intervals on the inner wall of the transition plate. One end of the upper crossbar has a left hinge sleeve, and the other end has a right hinge sleeve, with the left and right hinge sleeves corresponding to each other. A disc is located at the bottom center of the support base, and a ring is rotatably installed on the outer wall of the disc. However, the shortcomings of the above-mentioned patented technology are that the lower ring is directly fixed to the bridge surface or pier. When it is subjected to external pressure, its structural firmness comes entirely from the bolts between the ring and the bridge surface or pier. The bolts have limited bearing capacity, and the guardrail's protective ability is insufficient, especially when subjected to strong impacts. Utility Model Content

[0003] Most existing road and bridge guardrail structures are simple steel structures, such as the guardrail in the aforementioned patent. Their drawback is that while the steel structure is easy to install, its structural strength relies entirely on the bolts connecting the circular rings when subjected to external pressure, resulting in insufficient protection. This application designs a road and bridge safety guardrail that addresses at least one aspect or objective of the above-mentioned issues. The specific technical solution is as follows:

[0004] A road and bridge safety guardrail includes:

[0005] The concrete protective structure has a flat upper surface and an outer surface.

[0006] The steel structure protective body includes multiple parallel and spaced columns connected by horizontal guardrails. Each column has an L-shaped groove at its lower end. The upper surface of the L-shaped groove is in contact with the upper surface of the concrete protective body, and the side of the L-shaped groove is in contact with the outer wall of the concrete protective body.

[0007] The connecting part connects the column and the concrete protective structure.

[0008] Preferably, the connecting part is a connecting plate, which is set vertically to the column. The lower surface of the connecting plate is flush with the upper surface of the L-shaped groove. The connecting plate is provided with connecting holes, and bolts are used to connect it to the concrete protection body.

[0009] Preferably, the connecting plate is an L-shaped plate, with one side of the L-shaped plate attached to the upper surface of the concrete protection structure and the other side attached to the inner wall of the concrete protection structure.

[0010] Preferably, two horizontal guardrails are provided, with the two horizontal guardrails spaced horizontally apart.

[0011] Preferably, the diameter of the upper horizontal guard bar is larger than the diameter of the lower horizontal guard bar.

[0012] Preferably, the horizontal guardrail is made of hot-dip galvanized steel pipe.

[0013] Preferably, the column is bent into a sickle shape towards the inner side of the concrete wall.

[0014] This utility model combines a concrete protective body with a steel structure protective body to form a protective railing structure. The concrete protective body is cast on-site and has high structural strength. The L-shaped groove of the steel structure protective body fits tightly against the upper surface and outer wall of the concrete protective body. When the steel structure protective body is subjected to external impact, in addition to the bolts reinforcing its firmness, once deformation occurs, the L-shaped groove will tightly press against the outer wall of the concrete protective body to reduce the deformation of the steel structure protective body, improve the stability of the steel structure protective body, and enhance its protective capability. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a perspective view of the present invention from another angle;

[0017] Figure 3 This is a structural diagram of the column.

[0018] In the diagram, 1 is the concrete protective structure, 2 is the steel structure protective structure, 201 is the column, 202 is the horizontal guardrail, 203 is the L-shaped groove, and 3 is the connecting plate. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 invention and simplifying the description, 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 invention.

[0021] like Figure 1-3 As shown, a road and bridge safety guardrail includes a concrete guardrail 1. The concrete guardrail 1 is a cuboid with a flat outer wall and an arc-shaped inner wall. The arc-shaped inner wall is a concave arc-shaped inner wall with its center of curvature located on one side of the bridge road surface. At the same time, the upper surface of the concrete guardrail 1 is also flat, which can be easily connected to the steel structure guardrail 2.

[0022] The concrete protective structure 1 is preferably cast on-site and placed at the edge of the road above the bridge, which ensures a good connection with the bridge piers and high strength.

[0023] It also includes a steel structure protective body 2, which mainly includes multiple parallel and spaced columns 201. The multiple columns 201 are connected to each other as a whole by horizontal guardrails 202. Each column 201 has an L-shaped groove 203 at its lower end. When the steel structure protective body 2 is connected to the concrete protective body 1, the upper surface of the L-shaped groove 203 is in contact with the upper surface of the concrete protective body 1, and the side of the L-shaped groove 203 is in contact with the outer wall of the concrete protective body 1. At the same time, the concrete protective body 1 and the steel structure protective body 2 are connected by a connecting part.

[0024] In addition to ensuring the basic stability of the steel structure protection body 2 through the connection of the connecting parts, when subjected to external impacts, which mostly come from the side of the bridge and road, the impact pressure direction is from the inside of the steel structure protection body 2 to the outside. Therefore, when the steel structure protection body 2 is subjected to external force, it mainly deforms outward. At this time, the side of the L-shaped groove 203 will tightly abut against the outer wall of the concrete protection body 1 to reduce the deformation of the steel structure protection body 2, improve the deformation resistance of the steel structure protection body 2, and improve the overall protective ability of the guardrail.

[0025] Furthermore, the aforementioned connecting part is a connecting plate 3, which is perpendicular to the column 201 and horizontally arranged. The lower surface of the connecting plate 3 is flush with the upper surface of the L-shaped groove 203. The connecting plate 3 is provided with connecting holes, and the connecting holes are connected to the concrete protection body 1 by bolts.

[0026] In an alternative embodiment, the connecting part can also be a connecting wire, with the upper end of the connecting wire connected to the upper part of the column 201 and the lower end anchored to the concrete protection body 1.

[0027] Furthermore, the aforementioned connecting plate 3 is an L-shaped plate. One side of the L-shaped plate is attached to the upper surface of the concrete protection body 1, and the other side is attached to the inner wall of the concrete protection body 1. The side of the L-shaped plate that is attached to the inner wall of the concrete protection body 1 and the side of the L-shaped groove 203 mutually restrain each other when the steel structure protection body 2 is subjected to force, thereby improving the deformation resistance.

[0028] Furthermore, in order to avoid the problem of large gaps in protection due to the large space between the steel structure protective body 2 and the concrete protective body 1, two horizontal guardrails 202 are set, with the two horizontal guardrails 202 set horizontally at intervals.

[0029] Furthermore, the diameter of the upper horizontal guard rod 202 is larger than that of the lower horizontal guard rod 202. When the steel structure protective body 2 is subjected to external force, the uppermost horizontal guard rod 202 is subjected to the greatest force and has the highest protective capacity. The lower horizontal guard rod 202 has the second highest protective capacity. Therefore, under the premise of meeting the protection requirements, in order to reduce costs, the diameter of the lower horizontal guard rod 202 can be set to be smaller than that of the upper horizontal guard rod 202.

[0030] Furthermore, in order to improve the hardness and corrosion resistance of the horizontal guardrail 202, the aforementioned horizontal guardrail 202 is made of hot-dip galvanized steel pipe.

[0031] Furthermore, in order to improve the impact resistance and pressure bearing capacity of the steel structure protective body 2, the above-mentioned column 201 is bent into a sickle shape towards the inner side of the concrete wall. The bending into the inner side of the concrete wall can also improve its own deformation resistance, that is, its ability to bend and deform outward.

[0032] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0033] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A safety barrier for road bridges, characterized in that, The utility model relates to a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

2. A safety barrier for roads and bridges according to claim 1, characterized in that, The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

3. A highway bridge safety barrier according to claim 2, wherein, The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

4. A safety barrier for roads and bridges according to claim 1, characterized in that, The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

5. A highway bridge safety barrier according to claim 4, wherein, The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

6. A highway bridge safety barrier according to claim 4 or 5, wherein, The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part.

7. A highway bridge safety barrier according to claim 1, wherein The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body, and the concrete protective body and the steel structure protective body are connected through a connecting part. The utility model discloses a concrete protective body and a steel structure protective body connected with the concrete protective body,

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