Railway bridge energy dissipation protection wall

Abstract

The utility model relates to a railroad bridge energy dissipation protection wall. An existing railway bridge protection wall is mainly of a reinforced concrete structure, has the problems of low bearing capacity, high rigidity, difficulty in repairing and poor adaptability, and is extremely easy to lose all bearing capacity and possibly cause chain reaction after being impacted by train derailment. The high-damping energy-dissipation wall comprises a protection panel, a reinforced concrete wall body and a plurality of panel energy-dissipation connecting pieces, the protection panel and the reinforced concrete wall body are arranged in parallel, a closed space is formed between the protection panel and the reinforced concrete wall body, and the closed space is filled with high-damping energy-dissipation materials; the panel energy consumption connecting piece is arranged in the closed space in parallel, and the two ends of the panel energy consumption connecting piece are connected with the protective panel and the reinforced concrete wall respectively; a plurality of supporting steel pipes are obliquely arranged on the outer side of the reinforced concrete wall. The device is simple in structure, convenient to repair and good in adaptability and has an early warning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to an energy-consuming protective wall of a railway bridge. Background Art

[0002] When a railway passes through an earthquake-prone area, it is very easy for a train to derail on a railway bridge. Existing railway bridge protective walls are mainly made of reinforced concrete structures. After being impacted by a train derailment, they are very likely to lose all their bearing capacity and may trigger a chain reaction, posing a threat to the overall structural safety of the railway bridge. It can be seen that the current reinforced concrete structure of railway bridge protective walls has the following shortcomings:

[0003] (1) Excessive stiffness: Reinforced concrete structures usually have high stiffness, which means that when hit, the protective wall itself is difficult to produce sufficient deformation to absorb and disperse the impact energy, resulting in the impact force being directly transmitted to the main structure of the bridge, increasing the risk of damage to the bridge.

[0004] (2) Difficulty in repair: Once the reinforced concrete protective wall is severely impacted and loses its bearing capacity, the repair work will become very difficult. Due to its complex structure and large size, the repair process may require a lot of time and resources, which will have a serious impact on the normal operation of the railway.

[0005] (3) Poor adaptability: The existing reinforced concrete protective walls have uniform specifications and lack adaptability to different impact situations. When facing impact objects of different speeds and masses, the protective walls cannot provide adequate protection.

[0006] (4) Lack of early warning mechanism: When reinforced concrete protective walls are hit, there are often no obvious early warning signals, which makes it difficult for bridge management departments to detect and deal with potential safety hazards in a timely manner.

[0007] Therefore, there is an urgent need for a new type of energy-consuming protective wall that has a simple structure, is easy to repair, has good adaptability, and has both energy-consuming and early warning effects. Summary of the Invention

[0008] The purpose of the utility model is to provide an energy-dissipating protective wall for a railway bridge, so as to at least solve the problems of low bearing capacity, high rigidity, difficulty in repair and poor adaptability of the prior art.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0010] A railway bridge energy-absorbing protective wall comprises a protective panel, a reinforced concrete wall, and a plurality of panel energy-absorbing connectors, wherein the protective panel and the reinforced concrete wall are arranged in parallel and a closed space is formed between the protective panel and the reinforced concrete wall, and the closed space is filled with a high-damping energy-absorbing material;

[0011] The panel energy dissipation connector is arranged in parallel in the closed space and its two ends are respectively connected to the protective panel and the reinforced concrete wall;

[0012] A plurality of supporting steel pipes are obliquely arranged on the outer side of the reinforced concrete wall. One end of the supporting steel pipe is fixed on the outer side wall of the reinforced concrete wall, and the other end is fixed on the bridge deck.

[0013] Furthermore, a plurality of wall positioning pads are provided on both the inner and outer walls of the reinforced concrete wall.

[0014] Furthermore, the wall positioning blocks on the inner wall of the reinforced concrete wall are distributed in a straight line, and the wall positioning blocks on the outer wall are distributed in a wavy line.

[0015] Furthermore, the wall positioning pads on the inner wall and the wall positioning pads on the outer wall of the reinforced concrete wall are located at the same height.

[0016] Furthermore, one end of the panel energy-absorbing connector connected to the reinforced concrete wall is fixed on the wall positioning pad on the front side wall of the reinforced concrete wall.

[0017] Furthermore, a number of steel pipe fixing pads are provided on the bridge deck outside the reinforced concrete wall.

[0018] Furthermore, the steel pipe fixing pads are distributed in a wavy line shape and correspond to the wall positioning pads on the outer side wall of the reinforced concrete wall.

[0019] Furthermore, one end of the supporting steel pipe is fixed to the wall positioning pad on the outer side wall of the reinforced concrete wall, and the other end is fixed to the steel pipe fixing pad.

[0020] Furthermore, a plurality of longitudinal steel bars and a plurality of stirrups are arranged inside the reinforced concrete wall.

[0021] Furthermore, stress sensors and displacement sensors are provided on the protective wall.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The utility model arranges support steel pipes obliquely on the outer side of the reinforced concrete wall, and the bottom end of the support steel pipes is tightly consolidated with the bridge deck, which can enhance the stability and protection capability of the entire protective wall, thereby improving the bearing capacity of the protective wall; high-damping energy-absorbing material is filled between the protective panel and the reinforced concrete wall, and its elastic-plastic deformation is used to absorb and dissipate the energy generated during the impact, thereby reducing the stiffness of the protective wall and the impact force between the train and the protective wall, thereby improving the protection performance of the protective wall, reducing maintenance costs, and greatly reducing costs; the utility model improves the defects of the existing railway protective wall, has a simple structure, is easy to install and maintain, and has good adaptability, and can meet the needs of railway bridges with different design speeds; and stress sensors and displacement sensors are provided on the protective wall of the utility model. When the reinforced concrete wall is hit, the indicator light is on, and an obvious early warning signal can be generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0025] Figure 1 This is the main view of the utility model;

[0026] Figure 2 yes Figure 1 Middle AA cross-section;

[0027] Figure 3 yes Figure 1 Middle BB cross-section;

[0028] Figure 4 yes Figure 3 Middle CC cross-section;

[0029] Figure 5 yes Figure 2 Middle DD cross-section;

[0030] The symbols in the figure are:

[0031] 1-protective panel, 2-high damping energy-absorbing material, 3-reinforced concrete wall, 4-supporting steel pipe, 5-panel energy-absorbing connector, 6-wall positioning pad, 7-steel pipe fixing pad. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] Example:

[0036] like Figure 3 As shown, this embodiment provides an energy-absorbing protective wall for a railway bridge, comprising a protective panel 1, a reinforced concrete wall 3 and a plurality of panel energy-absorbing connectors 5. The protective panel 1 is a channel-shaped steel panel made of Q235B steel. The side wall cross-section of the protective panel 1 is a vertical wave-shaped panel, and bolt holes are provided at the connection between the protective panel 1 and the panel energy-absorbing connector 5.

[0037] like Figure 2 As shown, the protective panel 1 and the reinforced concrete wall 3 are arranged in parallel and a closed space is formed between the protective panel 1 and the reinforced concrete wall 3. The closed space is filled with a high-damping energy-absorbing material 2. In this embodiment, the high-damping energy-absorbing material 2 is silicone rubber.

[0038] Further, such as Figure 3 As shown, the panel energy dissipation connector 5 is arranged in parallel in the closed space and its two ends are respectively connected to the protective panel 1 and the reinforced concrete wall 3. The panel energy dissipation connector 5 is directly arranged through the high damping energy dissipation material 2.

[0039] In this embodiment, the high damping energy dissipation material 2 and the panel energy dissipation connector 5 work together to absorb and dissipate the energy generated during the collision through the elastic-plastic deformation of the high damping energy dissipation material 2 .

[0040] A number of wall positioning pads 6 are welded on the inner and outer walls of the reinforced concrete wall 3. Figure 4 As shown, the wall positioning pads 6 on the inner wall of the reinforced concrete wall 3 are distributed in a straight line and are arranged in two rows. A number of wall positioning pads 6 are arranged at equal intervals in both rows, and the upper and lower rows are symmetrically arranged, as shown in FIG. Figure 5 As shown, the wall positioning pads 6 on the outer wall are distributed in a wavy line shape, and are arranged in two rows. A number of wall positioning pads 6 are arranged at equal intervals in both rows, and the upper and lower rows are staggered. A wall positioning pad 6 in the lower row is arranged between the two wall positioning pads 6 in the upper row.

[0041] like Figure 1 As shown, the two rows of wall positioning blocks 6 on the inner wall and the two rows of wall positioning blocks 6 on the outer wall of the reinforced concrete wall 3 are located at the same height, and the wall positioning blocks 6 in each row on the inner and outer side walls are symmetrically arranged.

[0042] In this embodiment, the panel energy-absorbing connector 5 includes a first cylinder and a second cylinder, a bottom surface of the second cylinder is integrally connected to the center position of a bottom surface of the first cylinder, the first cylinder is a flat cylinder, the second cylinder is a slender cylinder, the diameter of the first cylinder is larger than the diameter of the second cylinder, the end of the first cylinder away from the second cylinder is fixed to the inner wall of the protective panel 1 by bolts, and the end of the second cylinder away from the first cylinder is welded to the wall positioning pad 6 on the inner wall of the reinforced concrete wall 3, and each wall positioning pad 6 on the inner wall of the reinforced concrete wall 3 is fixed with a panel energy-absorbing connector 5.

[0043] Furthermore, a number of supporting steel pipes 4 are obliquely arranged on the outside of the reinforced concrete wall 3, and a number of steel pipe fixing pads 7 are welded on the bridge deck outside the reinforced concrete wall 3. The steel pipe fixing pads 7 are distributed in two rows parallel to the reinforced concrete wall 3 and in a wavy line shape. The steel pipe fixing pads 7 are arranged corresponding to the wall positioning pads 6 on the outer wall of the reinforced concrete wall 3.

[0044] One end of the supporting steel pipe 4 is welded to the wall positioning pad 6 on the outer wall of the reinforced concrete wall 3, and the other end is welded to the steel pipe fixing pad 7. One end of the supporting steel pipe 4 is located on the lower row of wall positioning pads 6, and the other end is welded to the steel pipe fixing pad 7 close to the reinforced concrete wall 3. One end of the supporting steel pipe 4 is located on the upper row of wall positioning pads 6, and the other end is welded to the steel pipe fixing pad 7 away from the reinforced concrete wall 3. The supporting steel pipe 4 is arranged obliquely and parallel, and the bottom end of the supporting steel pipe 4 is tightly consolidated to the bridge deck, so as to enhance the stability and protection capability of the entire protective wall.

[0045] A number of longitudinal steel bars and stirrups are arranged inside the reinforced concrete wall 3 in accordance with building regulations to increase the strength of the concrete.

[0046] Furthermore, the entire protective wall is provided with stress sensors and displacement sensors, which can monitor the deformation of the protective wall in real time, and is also equipped with indicator lights, which are connected to the stress sensors and displacement sensors. When the reinforced concrete wall 3 is hit, the indicator lights will light up, which can generate an obvious early warning signal.

[0047] In this embodiment, the high-damping energy-absorbing material 2 and the panel energy-absorbing connector 5 may also be other materials or structures with energy-absorbing characteristics.

[0048] The installation method of this embodiment is as follows:

[0049] Connect one end of the first cylinder of the panel energy dissipation connector 5 to the inner wall of the protective panel 1 through bolts;

[0050] Weld several wall positioning pads 6 on both the inner and outer walls of the reinforced concrete wall 3;

[0051] Weld one end of the second cylinder of the panel energy dissipation connector 5 to the wall positioning pad 6 on the inner wall of the reinforced concrete wall 3;

[0052] Filling the enclosed space between the protective panel 1 and the reinforced concrete wall 3 with silicone rubber;

[0053] Weld several steel pipe fixing pads 7 on the bridge deck outside the reinforced concrete wall 3;

[0054] One end of the supporting steel pipe 4 is welded to the wall positioning pad 6 on the outer wall of the reinforced concrete wall 3, and the other end is welded to the steel pipe fixing pad 7.

[0055] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A railway bridge energy dissipation protection wall, characterized by: The invention comprises a protective panel (1), a reinforced concrete wall (3) and a plurality of panel energy-absorbing connectors (5), wherein the protective panel (1) and the reinforced concrete wall (3) are arranged in parallel and a closed space is formed between the protective panel (1) and the reinforced concrete wall (3), and the closed space is filled with a high-damping energy-absorbing material (2); the panel energy-absorbing connector (5) is arranged in parallel in the closed space and its two ends are respectively connected to the protective panel (1) and the reinforced concrete wall (3); a plurality of supporting steel pipes (4) are arranged obliquely on the outer side of the reinforced concrete wall (3), one end of the supporting steel pipe (4) is fixed to the outer side wall of the reinforced concrete wall (3), and the other end is fixed to the bridge deck.

2. The railway bridge energy dissipation protection wall according to claim 1, characterized in that: A plurality of wall positioning pads (6) are provided on both the inner and outer walls of the reinforced concrete wall (3).

3. The railway bridge energy dissipation protection wall according to claim 2, characterized in that: The wall positioning pads (6) on the inner wall of the reinforced concrete wall (3) are distributed in a straight line, and the wall positioning pads (6) on the outer wall are distributed in a wavy line.

4. The railway bridge energy dissipation protection wall according to claim 2, characterized in that: The wall positioning pad (6) on the inner wall and the wall positioning pad (6) on the outer wall of the reinforced concrete wall (3) are located at the same height.

5. The railway bridge energy dissipation protection wall according to claim 2, characterized in that: One end of the panel energy dissipation connector (5) connected to the reinforced concrete wall (3) is fixed on the wall positioning pad (6) on the front side wall of the reinforced concrete wall (3).

6. The railway bridge energy dissipation protection wall according to claim 2, characterized in that: A plurality of steel pipe fixing pads (7) are provided on the bridge deck outside the reinforced concrete wall (3).

7. The railway bridge energy dissipation protection wall according to claim 6, characterized in that: The steel pipe fixing pads (7) are distributed in a wavy line shape and correspond to the wall positioning pads (6) on the outer side wall of the reinforced concrete wall (3).

8. The railway bridge energy dissipation protection wall according to claim 6, characterized in that: One end of the supporting steel pipe (4) is fixed to the wall positioning pad (6) on the outer wall of the reinforced concrete wall (3), and the other end is fixed to the steel pipe fixing pad (7).

9. The railway bridge energy dissipation protection wall according to claim 1, characterized in that: A plurality of longitudinal steel bars and a plurality of stirrups are arranged inside the reinforced concrete wall (3).

10. The railway bridge energy dissipation protection wall according to claim 1, characterized in that: Stress sensors and displacement sensors are provided on the protective wall.

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