Height limiting guard for railway bridges

Abstract

This utility model provides a height restriction protection device for railway bridges. The device is anchored to the piers of the railway bridge and includes an anchoring structure, a protective component, and an energy-absorbing component. The anchoring structure is located on the top or side of the pier. The protective component is connected to the anchoring structure and spans across the side of the bridge, with its lowest point lower than the lowest point of the supporting beam of the railway bridge. The energy-absorbing component is located between the protective component and the supporting beam. This utility model's height restriction protection device for railway bridges, by connecting the height restriction protection device to the side or top of the piers, does not occupy more land area. With the buffering effect of the energy-absorbing component, it can reduce damage to moving objects and the railway bridge, thus having a better effect on reducing accident losses.

Description

Technical Field

[0001] This application relates to the field of bridge protection engineering technology, and in particular to a height restriction protection device for railway bridges. Background Technology

[0002] For railway beam bridges crossing highways, height restriction frames are generally installed on the approaching side of the bridge. When the clearance of a highway overpass is less than 4.5m, a height restriction frame with a height not less than the clearance is installed on the approaching side of the overpass. For railway beam bridges crossing highways, railway management departments stipulate that when the clearance of the overpass is less than 5.0m, railway bridge and culvert height restriction protection frames with a width not less than the road surface and a height not less than the clearance are installed on both sides of the approaching side of the bridge.

[0003] However, since the height restriction protection frames for railway bridges and culverts are constructed or added by the railway department and are set up on the road surface, there are difficulties such as overlapping jurisdictions and management by multiple departments. Therefore, a new type of height restriction protection device needs to be proposed to avoid the above difficulties. Summary of the Invention

[0004] This application provides a height restriction protection device for railway bridges to solve the technical problems in related technologies, such as the occupation of highway area by height restriction protection frames for railway bridges and culverts, the difficulty in design and location negotiation, and the difficulties in construction coordination and cross-departmental management.

[0005] This utility model mainly involves adding height-limiting protective frames to existing railway bridge piers using post-anchoring technology. By analyzing the distribution of various facilities on the top surface of existing railway bridge piers, the usable anchoring area and form of the height-limiting protective device are obtained, thereby determining the anchoring structural characteristics of this utility model.

[0006] This utility model provides a height restriction protection device for railway bridges, which is anchored to the piers of the railway bridge. The height restriction protection device includes:

[0007] A rooting structure is provided on the top or side of the bridge pier;

[0008] A protective component, which is connected to the anchoring structure and spans across the side of the bridge, wherein the lowest point of the protective component is lower than the lowest point of the supporting beam of the railway bridge.

[0009] An energy-absorbing component is disposed between the protective component and the support beam.

[0010] The height restriction protection device for railway bridges of this utility model is connected to the top or side of the railway bridge pier, without occupying road area, reducing the difficulty of design location negotiation, and reducing the difficulties of construction coordination and cross-departmental management.

[0011] Furthermore, an energy-absorbing component is installed between the protective component and the supporting beam of the railway bridge. Even if a moving object collides with the protective component, the buffering effect of the energy-absorbing component can reduce the damage to the moving object and the railway bridge. Therefore, it has a better effect on reducing accident losses.

[0012] In one embodiment of the height restriction protection device for railway bridges of this utility model, the protection component includes a column and a crossbeam, the column and the crossbeam are fixedly connected, wherein the energy absorption component is located between the crossbeam and the support beam.

[0013] The protective components include uprights and beams, with the uprights providing support and the beams and energy-absorbing components used to resist and absorb impact kinetic energy to reduce accident losses.

[0014] When the crossbeam is impacted, the impact kinetic energy is transferred through the columns to the anchoring structure of the pier. Because the bridge pier has strong impact resistance, the support strength of the entire protective component is improved, thus enabling it to resist greater external impacts.

[0015] In addition, because the bottom of the column and the anchoring structure are connected to the top or side of the pier, the column height is low, which can reduce the bending moment and torque borne by the column in resisting external impact.

[0016] In one embodiment of the height restriction protection device for railway bridges of this utility model, the crossbeam includes multiple crossbars, and the multiple crossbars are respectively connected to the column.

[0017] Multiple crossbars can resist external impacts individually. When one crossbar is subjected to an external impact, the adjacent crossbars can provide support, resist the impact caused by the external impact, reduce the deformation of the crossbar, and reduce the impact energy transmitted to the energy absorption components.

[0018] In one embodiment of the height restriction protection device for railway bridges of this utility model, the energy-absorbing component includes a plurality of energy-absorbing elements, which are spaced apart along the extension direction of the crossbeam and located between the crossbeam and the support beam.

[0019] By installing energy-absorbing components at multiple locations, the protective assembly can resist or absorb some or all of the impact energy when a moving object impacts different locations. Furthermore, since there are gaps between adjacent energy-absorbing components, when an energy-absorbing component deforms due to impact, the gaps between the energy-absorbing components can provide deformation space, reducing greater damage to adjacent energy-absorbing components or support beams.

[0020] In one embodiment of the height restriction protection device for railway bridges of this utility model, the energy-absorbing component is made of rubber sheet, foam material, or flexible material.

[0021] The energy-absorbing component provided by this utility model can absorb impact energy and provide a certain buffer to reduce impact energy. After the impact energy is released, the energy-absorbing component can also partially or completely recover, thus protecting the protective components.

[0022] In one embodiment of the height restriction protection device for railway bridges of this utility model, the lowest point of the crossbeam is 20mm to 100mm lower than the bottom of the support beam, and the height restriction protection component is used for railway bridges with spans of 16m, 20m, 24m or 32m.

[0023] This utility model's height restriction and protection device is a component of bridges, connected to the piers. It is suitable for railway bridges with larger spans. In addition to providing height restriction and protection, it also increases the passable height under the bridge according to the pier height, thereby increasing the convenience of road traffic under the bridge.

[0024] In one embodiment of the height restriction protection device for railway bridges of this utility model, the anchoring structure includes multiple anchors and anchoring steel plates. The multiple anchors are connected to one side of the anchoring steel plates and extend into the pier.

[0025] Multiple anchors and anchor plates can improve the stiffness and strength of the anchoring structure and enhance the connection strength between the protective components and the piers to resist greater impact kinetic energy.

[0026] In one embodiment of the height restriction protection device for railway bridges of this utility model, the anchoring structure is further provided with multiple reinforcing ribs, which are connected between the anchoring steel plate and the protection component.

[0027] Reinforcing ribs are added to the rooting structure, which further improves the strength of the rooting structure itself and provides greater support for the protective components, thus protecting the support beam from smaller impacts.

[0028] In one embodiment of the height restriction protection device for railway bridges of this utility model, the anchor is a chemical anchor or a rebar adhesive anchor rod.

[0029] Using chemical anchors or anchoring adhesive to fix anchor rods can improve the connection strength between the anchoring structure and the pier, and reduce the poor impact resistance of the protective components caused by weak anchoring. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0031] Figure 1This is a schematic diagram of a height restriction protection device for railway bridges according to the present invention, which shows the anchoring structure and protection components;

[0032] Figure 2 This is a schematic diagram of a height-limiting protection device for railway bridges according to the present invention, showing the top of the bridge pier;

[0033] Figure 3 This is a schematic diagram of a height restriction protection device for railway bridges according to the present invention, wherein the column is connected to the bridge pier through a rooting structure.

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0035] Explanation of reference numerals in the attached figures

[0036] 100. Height restriction protection devices for railway bridges;

[0037] 110. Rooting structure; 111. Anchor; 112. Anchoring steel plate; 113. Reinforcing rib;

[0038] 120. Protective components; 121. Uprights; 122. Beams; 123. Crossbars;

[0039] 200. Railway bridge; 210. Bridge pier; 220. Support beam. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0043] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0044] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0045] Figure 1 This is a schematic diagram of a height restriction protection device for railway bridges according to the present invention, showing the anchoring structure and protective components, such as... Figure 1 As shown, this utility model provides a height restriction protection device 100 for a railway bridge 200. The height restriction protection device is rooted on the pier 210 of the railway bridge 200. The height restriction protection device includes a rooting structure 110, a protection component 120 and an energy absorption component.

[0046] The rooting structure 110 is located on the top or side of the pier 210.

[0047] The protective component 120 is connected to the rooting structure 110 and spans across the side of the bridge. The lowest point of the protective component 120 is lower than the lowest point of the support beam 220 of the railway bridge 200.

[0048] The energy-absorbing component is located between the protective component 120 and the support beam 220.

[0049] The height restriction protection device 100 of the railway bridge 200 of this utility model is connected to the side or top of the pier 210 of the railway bridge 200. It does not occupy the road area, reduces the difficulty of design location negotiation, and reduces the difficulties of construction coordination and cross-management by multiple departments.

[0050] Furthermore, an energy-absorbing component is installed between the protective component 120 and the support beam 220 of the railway bridge 200. Even if a moving object collides with the protective component 120, the energy-absorbing component can reduce the damage to the moving object and the railway bridge 200, thus having a better effect on reducing accident losses.

[0051] Figure 3 This is a schematic diagram of a height restriction protection device for railway bridges according to the present invention, wherein the column is connected to the bridge pier through a rooting structure, as shown below. Figure 3 As shown, in one embodiment of the present invention, the protective component 120 includes a column 121 and a crossbeam 122, the column 121 and the crossbeam 122 are fixedly connected, wherein the energy-absorbing component is located between the crossbeam 122 and the support beam 220.

[0052] The protective component 120 includes a column 121 and a crossbeam 122, wherein the column 121 provides support, and the crossbeam 122 and the energy-absorbing component are used to resist and absorb impact kinetic energy to reduce accident losses.

[0053] When the crossbeam 122 is impacted, the impact kinetic energy is transferred through the column 121 to the anchoring structure 110 of the pier 210. Since the pier 210 of the bridge has strong impact resistance, the support strength of the entire protective component 120 is improved, thereby enabling it to resist greater external impacts.

[0054] In addition, since the bottom of the column 121 and the anchoring structure 110 are connected to the top or side of the pier 210, the column 121 is close to the crossbeam 122, which can reduce the bending moment and torque borne by the column 121 in the process of resisting external impact. Figure 2 This is a schematic diagram of a height restriction protection device for railway bridges according to the present invention, showing the top of the bridge pier.

[0055] In one embodiment of the present invention, the crossbeam 122 includes a plurality of crossbars 123, and the plurality of crossbars 123 are respectively connected to the column 121.

[0056] Multiple crossbars 123 can resist external impacts individually. When one crossbar 123 is subjected to an external impact, the adjacent crossbars 123 can provide support, resist the impact of the external impact on the crossbar 123, reduce the deformation of the crossbar 123, and reduce the impact energy transmitted to the energy absorption component.

[0057] In one embodiment of the present invention, the energy-absorbing component includes a plurality of energy-absorbing elements, which are spaced apart along the extension direction of the crossbeam 122 and located between the crossbeam 122 and the support beam 220.

[0058] Energy-absorbing components are installed at multiple locations. When a moving object impacts different locations of the protective component 120, the protective component 120 can resist or absorb part or all of the impact energy. Furthermore, since there are gaps between adjacent energy-absorbing components, when an energy-absorbing component deforms due to the impact, the gaps between the energy-absorbing components can provide deformation space, reducing greater damage to adjacent energy-absorbing components or the support beam 220.

[0059] In one embodiment of this utility model, the energy-absorbing element is made of rubber sheet, foam material, or flexible material.

[0060] The energy-absorbing component provided by this utility model can absorb impact energy and provide a certain buffer to reduce impact energy. After the impact energy is released, the energy-absorbing component can also partially or completely recover, thus protecting the protective component 120.

[0061] In one embodiment of the present invention, the lowest point of the crossbeam 122 is 20mm to 100mm lower than the bottom of the support beam 220, and the height limiting protection component 120 is used for railway bridges 200 with spans of 16m, 20m, 24m or 32m.

[0062] The height restriction and protection device of this utility model is a component of the bridge and is connected to the pier 210. It is suitable for railway bridges 200 with larger spans. In addition to providing height restriction and protection, it can also increase the passable height under the bridge according to the height of the pier, thereby increasing the convenience of road traffic under the bridge.

[0063] In one embodiment of the present invention, the anchoring structure 110 includes a plurality of anchors 111 and an anchoring steel plate 112. The plurality of anchors 111 are connected to one side of the anchoring steel plate 112 and extend into the pier 210.

[0064] Multiple anchors 111 and anchor plates 112 can improve the stiffness and strength of the anchoring structure 110 and increase the connection strength between the protective component 120 and the pier 210 to resist greater impact kinetic energy.

[0065] In one embodiment of the present invention, the rooting structure 110 is further provided with a plurality of reinforcing ribs 113, which are connected between the anchoring steel plate 112 and the protective component 120.

[0066] Reinforcing ribs 113 are provided on the rooting structure 110, which further improves the strength of the rooting structure 110 and provides greater support for the protective component 120, so as to protect the support beam 220 from smaller impacts.

[0067] In one embodiment of this utility model, the anchor 111 is a chemical anchor or a rebar adhesive used to anchor the anchor rod.

[0068] Using chemical anchors or anchoring adhesive to fix the anchor rods can improve the connection strength between the rooting structure 110 and the pier 210, and reduce the poor impact resistance of the protective component 120 due to weak anchoring.

[0069] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0070] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A height restriction barrier for a railway bridge, characterised in that, The height restriction protection device is anchored to the piers of the railway bridge, and the height restriction protection device includes: A rooting structure is provided on the top or side of the bridge pier; A protective component, which is connected to the anchoring structure and spans across the side of the bridge, wherein the lowest point of the protective component is lower than the lowest point of the supporting beam of the railway bridge. An energy-absorbing component is disposed between the protective component and the support beam.

2. The height restriction protection device for railway bridges according to claim 1, characterized in that, The protective assembly includes a column and a crossbeam, which are fixedly connected. The energy-absorbing assembly is located between the crossbeam and the support beam.

3. The height restriction protection device for railway bridges according to claim 2, characterized in that, The crossbeam includes multiple crossbars, which are respectively connected to the column.

4. The height restriction protection device for railway bridges according to claim 2, characterized in that, The energy-absorbing assembly includes multiple energy-absorbing elements, which are spaced apart along the extension direction of the crossbeam and located between the crossbeam and the support beam.

5. The height restriction protection device for railway bridges according to claim 4, characterized in that, The energy-absorbing component is made of rubber sheet, foam material, or flexible material.

6. The height restriction protection device for railway bridges according to claim 2, characterized in that, The lowest point of the crossbeam is 20mm to 100mm lower than the bottom of the support beam. The height restriction protection device is used for railway bridges with spans of 16m, 20m, 24m, and 32m.

7. The height restriction protection device for railway bridges according to any one of claims 1-6, characterized in that, The anchoring structure includes multiple anchors and anchor plates, the multiple anchors being connected to one side of the anchor plates and extending into the pier.

8. The height restriction protection device for railway bridges according to claim 7, characterized in that, The rooting structure is also provided with multiple reinforcing ribs, which are connected between the anchoring steel plate and the protective component.

9. The height restriction protection device for railway bridges according to claim 8, characterized in that, The anchors are chemical anchors or anchor rods secured with rebar adhesive.

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