Railway bridge restraint system with self-recovery function

Abstract

The utility model discloses a railroad bridge restraint system with a self-recovery function, which comprises a bridge body, side piers and a middle pier are arranged at the bottom of the bridge body, the middle pier is positioned between the two side piers, a self-recovery support is arranged between the bridge body and the middle pier, a basin-type support is arranged between the bridge body and the side piers, the self-recovery support comprises an upper support plate and a lower support plate, and the upper support plate is connected with the lower support plate. A spherical crown lining plate is fixed to the bottom of the upper support plate, a concave spherical surface is arranged on the outer wall of the top of the lower support plate, and the bottom of the spherical crown lining plate is matched with the concave spherical surface. The self-recovery supports are symmetrically arranged, and the concave spherical surface is arranged at the top of the lower support plate, so that the temperature zero point of the bridge is in the midspan, the system enables the whole bridge structure to move in the concave spherical surface, and the bridge body can naturally recover to the center of the bottom of the concave spherical surface under the action of gravity; and the defect that the position of the bridge body cannot be automatically recovered due to temperature change is overcome, so that the railway bridge is more convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge technology, specifically to a railway bridge restraint system with self-recovery function. Background Technology

[0002] The primary function of railway bridges is to cross obstacles and ensure the continuous passage of railway lines. By crossing rivers, lakes, straits, valleys, or other obstacles, railway bridges enable grade-separated intersections between railway lines or roads, thereby overcoming terrain or man-made barriers and ensuring the continuity and capacity of railways.

[0003] During the use of railway bridges, the bridge body will undergo certain displacement due to temperature changes. After a long period of use, the bridge body cannot be well restored to the designed position, which leads to inconvenience in the maintenance of railway bridges. Therefore, it is urgent to design a railway bridge restraint system with self-recovery function to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a railway bridge restraint system with self-healing function to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A railway bridge restraint system with self-recovery function includes a bridge body, with side piers and a central pier at the bottom of the bridge body. The central pier is located between the two side piers. A self-recovery bearing is provided between the bridge body and the central pier. A pot bearing is provided between the bridge body and the side piers. The self-recovery bearing includes an upper bearing plate and a lower bearing plate. A spherical crown liner is fixed to the bottom of the upper bearing plate. A concave spherical surface is provided on the top outer wall of the lower bearing plate. The bottom of the spherical crown liner is adapted to the concave spherical surface.

[0007] Furthermore, a wear-resistant plate is fixed to the inner wall of the concave spherical surface, and a stainless steel plate is fixed to the bottom outer wall of the spherical crown liner.

[0008] Furthermore, two limiting plates are fixed to the bottom outer wall of the upper support plate. The limiting plates are located on both sides of the lower support plate. Friction strips are fixed to the outer walls of both sides of the lower support plate. A second stainless steel plate is fixed to the outer wall of the friction strip near the limiting plate, and a third stainless steel plate is fixed to the outer wall of the limiting plate near the friction strip.

[0009] Furthermore, a fixing bolt is inserted into the bottom outer wall of the limiting plate, and the top end of the fixing bolt is threadedly connected to the upper support plate.

[0010] Furthermore, the upper support plate has an insertion hole on its top outer wall, and the spherical crown liner has a positioning hole on its top outer wall. A positioning post is inserted into the insertion hole, and the bottom end of the positioning post extends into the positioning hole.

[0011] Furthermore, an upper anchor rod is fixed to the top outer wall of the upper support plate, and a lower anchor rod is fixed to the bottom outer wall of the lower support plate.

[0012] In the above technical solution, the railway bridge restraint system with self-recovery function provided by this utility model has the following advantages: By symmetrically arranged self-recovery supports and a concave spherical surface set on the top of the lower support plate, the zero point of the bridge temperature is located at the mid-span. This system allows the entire bridge structure to move within the concave spherical surface, and the bridge body can naturally return to the bottom center of the concave spherical surface under the action of gravity, solving the problem that the position of the bridge body cannot be automatically restored due to temperature changes, making railway bridge maintenance more convenient; by fixing the limiting plate to the upper support plate from bottom to top with fixing bolts, when the stainless steel plate three on the limiting plate and the stainless steel plate two on the friction strip need to be replaced, only the limiting plate needs to be disassembled, without the need to lift the upper and lower support plates, achieving the effect of more convenient maintenance of the self-recovery support. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a front view structural schematic diagram of an embodiment of a railway bridge constraint system with self-recovery function according to the present invention.

[0015] Figure 2 This is a schematic diagram of a self-recovering support structure provided for an embodiment of a railway bridge constraint system with self-recovering function according to this utility model.

[0016] Figure 3 This is an enlarged structural schematic diagram of point A, which is provided for an embodiment of a railway bridge restraint system with self-recovery function according to this utility model.

[0017] Figure 4 This is an enlarged structural schematic diagram at point B, provided for an embodiment of a railway bridge restraint system with self-recovery function according to this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Bridge body, 2. Side piers, 3. Middle pier, 4. Self-recovering bearing, 5. Pot bearing, 6. Upper bearing plate, 7. Lower bearing plate, 8. Concave spherical surface, 9. Spherical crown liner, 10. Limiting plate, 11. Wear-resistant plate, 12. Stainless steel plate I, 13. Fixing bolt, 14. Friction strip, 15. Stainless steel plate II, 16. Stainless steel plate III, 17. Insertion hole, 18. Positioning hole, 19. Positioning column, 20. Upper anchor rod, 21. Lower anchor rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown in the figure, the embodiment of this utility model provides a railway bridge restraint system with self-recovery function, including a bridge body 1, with side piers 2 and middle piers 3 arranged at the bottom of the bridge body 1, the middle pier 3 being located between the two side piers 2, a self-recovery bearing 4 arranged between the bridge body 1 and the middle pier 3, and a pot bearing 5 arranged between the bridge body 1 and the side piers 2. The self-recovery bearing 4 includes an upper bearing plate 6 and a lower bearing plate 7, with a spherical crown liner 9 fixed at the bottom of the upper bearing plate 6, and a concave spherical surface 8 provided on the top outer wall of the lower bearing plate 7, the bottom of the spherical crown liner 9 being adapted to the concave spherical surface 8.

[0022] Specifically, in this embodiment, the bridge includes a bridge body 1. The bottom of the bridge body 1 is provided with side piers 2 and a central pier 3. The central pier 3 is located between the two side piers 2. There are two side piers 2 and two central piers 3. A self-recovering bearing 4 is provided between the bridge body 1 and the central pier 3. A pot bearing 5 is provided between the bridge body 1 and the side piers 2. The pot bearing 5 is a prior art pot bearing rubber bearing, which can adapt to large horizontal displacements. The self-recovering bearing 4 includes an upper bearing plate 6 and a lower bearing plate 7. A spherical crown liner 9 is fixed to the bottom of the upper bearing plate 6. A concave spherical surface 8 is provided on the top outer wall of the lower bearing plate 7. The bottom of the spherical crown liner 9 is adapted to the concave spherical surface 8. Figure 2 As shown in the transverse direction of the bridge, the spherical cap liner 9 can be restored to the center of the concave spherical surface 8 under its own weight, thus achieving the effect of automatic position restoration of the bridge body 1.

[0023] This utility model provides a railway bridge restraint system with self-recovery function. Through symmetrically arranged self-recovery supports 4 and a concave spherical surface 8 set on the top of the lower support plate 7, the zero point of the bridge temperature is located at the mid-span. This system allows the entire bridge structure to move within the concave spherical surface 8, and the bridge body 1 can naturally return to the bottom center of the concave spherical surface 8 under the action of gravity. This solves the problem that the position of the bridge body 1 cannot be automatically restored due to temperature changes, making railway bridge maintenance more convenient.

[0024] In another embodiment of this utility model, a wear-resistant plate 11 is fixed to the inner wall of the concave spherical surface 8, and a stainless steel plate 12 is fixed to the bottom outer wall of the spherical crown liner 9, so that the stainless steel plate 12 and the wear-resistant plate 11 can stably generate frictional movement; two limiting plates 10 are fixed to the bottom outer wall of the upper support plate 6, the limiting plates 10 are located on both sides of the lower support plate 7, and friction strips 14 are fixed to the outer walls of both sides of the lower support plate 7. A stainless steel plate 2 15 is fixed to the outer wall of the friction strip 14 near the limiting plate 10, and a stainless steel plate 3 16 is fixed to the outer wall of the limiting plate 10 near the friction strip 14. The friction strip 14 and the limiting plate 10 are made of stainless steel plate 16 and stainless steel plate 15, which enable stable friction between the friction strip 14 and the limiting plate 10. The bottom outer wall of the limiting plate 10 is fitted with a fixing bolt 13, and the top of the fixing bolt 13 is threaded to the upper support plate 6. The limiting plate 10 is fixed to the upper support plate 6 from bottom to top by the fixing bolt 13. When the stainless steel plate 16 on the limiting plate 10 and the stainless steel plate 15 on the friction strip 14 need to be replaced, only the limiting plate 10 needs to be disassembled. There is no need to lift the upper support plate 6 and the lower support plate 7, which makes the self-resetting support 4 more convenient to maintain.

[0025] In another embodiment of this utility model, the top outer wall of the upper support plate 6 is provided with an insertion hole 17, and the top outer wall of the spherical crown liner plate 9 is provided with a positioning hole 18. A positioning post 19 is inserted into the insertion hole 17, and the bottom end of the positioning post 19 extends into the positioning hole 18. The upper support plate 6 and the spherical crown liner plate 9 are fixed by the positioning post 19, so that the upper support plate 6 and the spherical crown liner plate 9 can be processed separately and are more convenient to assemble. An upper anchor rod 20 is fixed to the top outer wall of the upper support plate 6 and is fixed to the bridge body 1. A lower anchor rod 21 is fixed to the bottom outer wall of the lower support plate 7 and is fixed to the middle pier 3.

[0026] Working principle: When in use, the self-recovering bearing 4 and the pot bearing 5 are symmetrically arranged at the bottom of the bridge body 1, so that the zero point of the bridge temperature is at the mid-span. This system allows the entire bridge structure to move within the concave spherical surface 8, and the bridge body 1 can naturally return to the bottom center of the concave spherical surface 8 under the action of gravity.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A railway bridge restraint system with self-restoring function, characterized in that, The bridge includes a bridge body (1), with side piers (2) and a middle pier (3) at the bottom of the bridge body (1). The middle pier (3) is located between the two side piers (2). A self-recovering bearing (4) is provided between the bridge body (1) and the middle pier (3). A pot bearing (5) is provided between the bridge body (1) and the side piers (2). The self-recovering bearing (4) includes an upper bearing plate (6) and a lower bearing plate (7). A spherical crown liner (9) is fixed to the bottom of the upper bearing plate (6). A concave spherical surface (8) is provided on the top outer wall of the lower bearing plate (7). The bottom of the spherical crown liner (9) is adapted to the concave spherical surface (8).

2. The railway bridge restraint system with self-restoring function according to claim 1, characterized in that, The inner wall of the concave spherical surface (8) is fixed with a wear-resistant plate (11), and the bottom outer wall of the spherical crown liner (9) is fixed with a stainless steel plate (12).

3. A railway bridge restraint system with self-restoring function according to claim 1, characterized in that, Two limiting plates (10) are fixed to the bottom outer wall of the upper support plate (6). The limiting plates (10) are located on both sides of the lower support plate (7). Friction strips (14) are fixed to the outer walls of both sides of the lower support plate (7). A second stainless steel plate (15) is fixed to the outer wall of the friction strip (14) near the limiting plate (10). A third stainless steel plate (16) is fixed to the outer wall of the limiting plate (10) near the friction strip (14).

4. A railway bridge restraint system with self-restoring function according to claim 3, characterized in that, The bottom outer wall of the limiting plate (10) is fitted with a fixing bolt (13), and the top of the fixing bolt (13) is threadedly connected to the upper support plate (6).

5. A railway bridge restraint system with self-restoring function according to claim 1, characterized in that, The upper support plate (6) has an insertion hole (17) on its top outer wall, and the spherical crown liner (9) has a positioning hole (18) on its top outer wall. A positioning post (19) is inserted into the insertion hole (17), and the bottom end of the positioning post (19) extends into the positioning hole (18).

6. A railway bridge restraint system with self-restoring function according to claim 1, characterized in that, The upper support plate (6) is fixed with an upper anchor rod (20) on its top outer wall, and the lower support plate (7) is fixed with a lower anchor rod (21) on its bottom outer wall.

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