A bridge energy dissipation device

Abstract

The utility model provides a bridge energy dissipation device, which belongs to the technical field of bridge shock absorption and energy dissipation devices. The bridge energy dissipation device includes a first reaction seat, a second reaction seat, a base plate assembly, a speed locker assembly, a first E-shaped steel connector and a second E-shaped steel connector. The speed locker assembly can slide freely on the base plate assembly in the longitudinal direction and the transverse direction of the bridge. The first E-shaped steel connector and the second E-shaped steel connector are located on both sides of the speed locker assembly in the transverse direction of the bridge. The three connecting arms of the first E-shaped steel connector along the longitudinal direction of the bridge are movably connected to the first reaction seat, the speed locker assembly and the second reaction seat in turn. The three connecting arms of the second E-shaped steel connector are movably connected to the first reaction seat, the speed locker assembly and the second reaction seat in turn. The utility model can adapt to the longitudinal displacement, transverse displacement and rotation function requirements of the bridge under normal circumstances, and can perform deformation energy dissipation in time during an earthquake. There is no idle stroke during the energy dissipation process, and the energy dissipation capacity is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge shock absorption and energy dissipation devices, in particular to a bridge energy dissipation device. Background Art

[0002] With the continuous development of transportation construction, more and more bridges are being built. Some of these bridge projects need to pass through high-intensity earthquake areas, so the seismic performance requirements of bridges built in such areas are also higher. Compared with the method of using the strength of the bridge structure itself to resist earthquake response, it is more effective to use dampers to dissipate seismic energy to ensure the safety of the bridge structure. For large-span bridges in floating systems, in order to better ensure the safety of the bridge structure, viscous dampers or metal dampers are generally installed at the main tower of the bridge. Due to the large lateral displacement of the bridge, the viscous damper is difficult to adapt to the lateral displacement of the bridge. When using metal dampers, it is necessary to adapt to the longitudinal and lateral temperature displacements of the bridge, which will produce a large idle stroke in the event of an earthquake, reducing the energy consumption capacity of the product. Utility Model Content

[0003] The utility model aims to provide a bridge energy dissipation device which can adapt to the longitudinal displacement, lateral displacement and rotation function requirements of the bridge under normal circumstances, can timely perform deformation energy dissipation during an earthquake, has no idle stroke during the energy dissipation process, and has a strong energy dissipation capacity.

[0004] The technical solution adopted by the utility model is:

[0005] A bridge energy dissipation device, comprising:

[0006] A first reaction seat, wherein the first reaction seat is installed on the corresponding beam body;

[0007] A second reaction seat, the second reaction seat is installed on the corresponding beam body; along the longitudinal bridge direction, the second reaction seat and the first reaction seat are arranged opposite to each other;

[0008] A bottom plate assembly, the bottom plate assembly is located between the first reaction seat and the second reaction seat, and is installed on the corresponding pier along the longitudinal direction of the bridge;

[0009] A speed locker assembly, the speed locker assembly is located between the first reaction seat and the second reaction seat and is located on the base plate assembly; the speed locker assembly can slide freely in the longitudinal bridge direction and the transverse bridge direction on the base plate assembly;

[0010] A first E-shaped steel connector, which is arranged along the longitudinal bridge direction and located on one side of the speed locker assembly in the transverse bridge direction; along the longitudinal bridge direction, three connecting arms of the first E-shaped steel connector are movably connected to the first reaction seat, the speed locker assembly and the second reaction seat in sequence;

[0011] A second E-shaped steel connector is arranged along the longitudinal bridge direction and is located on the other side of the speed locker assembly in the transverse bridge direction; along the longitudinal bridge direction, the three connecting arms of the second E-shaped steel connector are movably connected with the first reaction seat, the speed locker assembly and the second reaction seat in sequence.

[0012] Further, the first reaction seat is provided with first connecting seats on both sides of the transverse bridge direction; the first connecting seat has a first mounting groove, a first upper arm and a first lower arm on one end surface; the first upper arm and the first lower arm are provided with corresponding connecting pin holes;

[0013] The second reaction seat is provided with a second connecting seat on both sides of the transverse bridge direction; the second connecting seat corresponds to the first connecting seat one by one; the end surface of one end of the second connecting seat has a second mounting groove, and a second upper support arm and a second lower support arm; the second upper support arm and the second lower support arm are provided with corresponding through connecting pin holes;

[0014] The speed lock assembly has two first ear plates and two second ear plates arranged vertically on both sides of the transverse bridge; the two first ear plates and the two second ear plates are respectively provided with corresponding connecting pin holes;

[0015] The three connecting arm end regions of the first E-shaped steel connecting member and the second E-shaped steel connecting member are respectively provided with connecting pin holes;

[0016] The three connecting arm end portions of the first E-shaped steel connecting member are respectively located between the first upper arm and the first lower arm, between the two first ear plates, and between the second upper arm and the second lower arm, and a first shear pin is inserted into the connecting pin hole;

[0017] The three connecting arm end portions of the second E-shaped steel connecting member are respectively located between the first upper arm and the first lower arm, between the two second ear plates, and between the second upper arm and the second lower arm, and a second shear pin is passed through the connecting pin hole.

[0018] Furthermore, there is a rotational gap between the bottom and side walls of the first mounting groove and the adjacent surfaces of the first E-shaped steel connector and the second E-shaped steel connector, and between the bottom and side walls of the second mounting groove and the adjacent surfaces of the first E-shaped steel connector and the second E-shaped steel connector.

[0019] Further, the first shear pin is sleeved with a first joint bearing at both ends or one end; the first joint bearing is located in the corresponding connecting pin hole; a first elastic retaining ring is provided between the outer wall of the first joint bearing and the inner wall of the connecting pin hole;

[0020] The second shear pin is sleeved with a second joint bearing at both ends or one end; the second joint bearing is located in the corresponding connecting pin hole; a second elastic retaining ring is provided between the outer wall of the second joint bearing and the inner wall of the connecting pin hole.

[0021] Furthermore, the first E-shaped steel connector may be provided in one piece or in a plurality stacked up and down;

[0022] The second E-shaped steel connecting member may be provided as one or a plurality of the second E-shaped steel connecting members stacked one above the other.

[0023] Furthermore, the base plate assembly comprises:

[0024] A bottom plate, wherein the upper surface of the bottom plate has a slide groove;

[0025] A longitudinal sliding plate, the longitudinal sliding plate being located in the sliding groove;

[0026] An upper surface stainless steel plate, the upper surface stainless steel plate is arranged on the upper surface of the longitudinal sliding plate and forms a sliding pair with the bottom of the speed lock assembly;

[0027] A bottom stainless steel plate, the bottom stainless steel plate being arranged at the bottom of the chute;

[0028] A bottom slide plate, which is arranged on the lower surface of the longitudinal sliding plate and forms a sliding pair with the bottom stainless steel plate;

[0029] An L-shaped first limit plate, the first limit plate is arranged at one end of the bottom plate in the longitudinal direction of the bridge; the vertical part of the first limit plate faces the transverse direction of the bridge;

[0030] A first end surface stainless steel plate, which is disposed on the vertical portion of the first limit plate and forms a sliding pair with one end of the speed lock assembly in the longitudinal direction;

[0031] An L-shaped second limit plate, the second limit plate being arranged at the other end of the bottom plate in the longitudinal direction of the bridge; the vertical portion of the second limit plate being parallel to the vertical portion of the first limit plate;

[0032] A second end surface stainless steel plate, wherein the second end surface stainless steel plate is arranged on the vertical portion of the second limit plate and forms a sliding pair with the other end of the speed lock assembly in the longitudinal direction of the bridge.

[0033] Furthermore, a plurality of first triangular supporting ribs and second triangular supporting ribs are provided on the first limiting plate and the second limiting plate.

[0034] Further, the speed lock assembly comprises:

[0035] Speed ​​lock body;

[0036] A first end slider, which is disposed at one end of the speed lock body in the longitudinal direction of the bridge and forms a sliding pair with the first end stainless steel plate;

[0037] A second end slider, which is arranged at the other end of the speed lock body in the longitudinal direction of the bridge and forms a sliding pair with the second end surface stainless steel plate;

[0038] A locker slide plate is arranged at the bottom of the speed locker body and forms a sliding pair with the upper surface stainless steel plate.

[0039] Furthermore, the slide groove has longitudinal clamping plates on both sides of the transverse bridge; the longitudinal clamping plates are arranged along the longitudinal bridge direction and connected to the bottom plate; the edges of the longitudinal sliding plates on both sides of the transverse bridge are located between the lower surface of the longitudinal clamping plates and the bottom of the slide groove, and the two are in sliding contact.

[0040] Furthermore, the longitudinal sliding plate has protruding mounting parts on both sides of the longitudinal bridge direction; the protruding mounting parts are arranged along the transverse bridge direction, and the two ends of their length are respectively in sliding contact with the two longitudinal clamping plates; a transverse clamping plate is provided on the protruding mounting parts; the bottom of the speed locker body has protruding limiting parts on both sides of the longitudinal bridge direction; the protruding limiting parts extend into the area between the lower surface of the transverse clamping plate and the upper surface of the longitudinal sliding plate, and the two are in sliding contact.

[0041] The beneficial effects of the utility model are:

[0042] The utility model provides a bridge energy dissipation device, which is composed of a first reaction seat, a second reaction seat, a base plate assembly, a speed locker assembly, a first E-shaped steel connector and a second E-shaped steel connector. Under normal circumstances, the speed locker assembly will generate a small damping force, the first E-shaped steel connector and the second E-shaped steel connector will not be deformed, and the speed locker assembly can slide freely on the base plate assembly in the longitudinal direction of the bridge and the transverse direction of the bridge to meet the normal displacement and rotation of the bridge. In the case of an earthquake, when the displacement speed of the bridge is greater than the locking speed of the speed locker assembly, the speed locker assembly starts to work, locks the longitudinal displacement of the bridge, and the first E-shaped steel connector and the second E-shaped steel connector enter the working state, generating a large plastic deformation, thereby dissipating the earthquake energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 It is a front view of the bridge energy dissipation device in this embodiment.

[0045] Figure 2 It is a top view of the bridge energy dissipation device in this embodiment.

[0046] Figure 3 It is a schematic diagram of the three-dimensional structure of the bridge energy dissipation device in this embodiment.

[0047] Figure 4 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0048] Figure 5 It is a cross-sectional view of the combined structure of the speed lock assembly and the base plate assembly.

[0049] The accompanying drawings are marked as follows:

[0050] 100-first reaction seat, 200-second reaction seat, 300-speed lock assembly, 400-base plate assembly, 500-anchor assembly, 600-first E-shaped steel connector, 700-second E-shaped steel connector, 800-first shear pin, 900-second shear pin;

[0051] 110 - first connecting bolt, 120 - first connecting seat, 121 - first mounting groove, 122 - first upper supporting arm, 123 - first lower supporting arm;

[0052] 210 - second connecting bolt, 220 - second connecting seat, 221 - second mounting groove, 222 - second upper supporting arm, 223 - second lower supporting arm;

[0053] 310-speed lock body, 320-first end slider, 330-second end slider, 340-locker slide plate, 350-first ear plate, 360-second ear plate;

[0054] 410-bottom plate, 411-slide groove, 412-longitudinal sliding plate, 413-bottom sliding plate, 414-bottom stainless steel plate, 415-first limiting plate, 416-second limiting plate, 417-upper surface stainless steel plate, 418-longitudinal clamping plate, 419-clamping bolt, 420-protruding mounting portion, 421-lateral clamping plate;

[0055] 4151-first end surface stainless steel plate, 4152-first triangular support rib, 4161-second end surface stainless steel plate, 4162-second triangular support rib;

[0056] 810 - first spherical bearing, 820 - first elastic retaining ring. DETAILED DESCRIPTION

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0059] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0060] Figure 1 It is a front view of the bridge energy dissipation device in this embodiment. Figure 2 It is a top view of the bridge energy dissipation device in this embodiment. Figure 3 Schematic diagram of the three-dimensional structure of the bridge energy dissipation device in this embodiment. Figures 1 to 3As shown in , the bridge energy dissipation device includes a first reaction seat 100 and a second reaction seat 200 similar to a hollow rectangular parallelepiped. The first reaction seat 100 and the second reaction seat 200 are respectively installed on the corresponding beam body through the first connecting bolt 110 and the second connecting bolt 210, and under normal circumstances, the first reaction seat 100 and the second reaction seat 200 are arranged relative to each other along the longitudinal bridge direction. There is a speed locker assembly 300 and a base plate assembly 400 between the first reaction seat 100 and the second reaction seat 200. Among them, the base plate assembly 400 is arranged along the longitudinal bridge direction, and its two ends adjacent to the first reaction seat 100 and the second reaction seat 200 are respectively connected to the corresponding pier as a whole through the anchor assembly 500. The speed locker assembly 300 is also arranged on the base plate assembly 400 along the longitudinal bridge direction, and under normal circumstances, the speed locker assembly 300 will slide freely on the base plate assembly 400 in the longitudinal bridge direction and the transverse bridge direction to meet the normal displacement of the bridge. At the same time, the bridge energy dissipation device in this embodiment also includes a first E-shaped steel connector 600 and a second E-shaped steel connector 700. The first E-shaped steel connector 600 and the second E-shaped steel connector 700 are also arranged along the longitudinal direction of the bridge and are located on both sides of the speed lock assembly 300 in the transverse direction of the bridge. The three connecting arms of the first E-shaped steel connector 600 and the second E-shaped steel connector 700 are opposite to each other. Along the longitudinal direction of the bridge, the three connecting arms of the first E-shaped steel connector 600 and the second E-shaped steel connector 700 are movably connected to the first reaction seat 100, the speed lock assembly 300 and the second reaction seat 200 in sequence.

[0061] Under normal circumstances, the speed lock assembly 300 will generate a small damping force, the first E-shaped steel connector 600 and the second E-shaped steel connector 700 will not be deformed, and the speed lock assembly 300 can slide freely on the bottom plate assembly 400 in the longitudinal direction and the transverse direction of the bridge to meet the normal displacement and rotation of the bridge. In the case of an earthquake, when the displacement speed of the bridge is greater than the locking speed of the speed lock assembly 300, the speed lock assembly 300 starts to work, locks the longitudinal displacement of the bridge, and the first E-shaped steel connector 600 and the second E-shaped steel connector 700 enter the working state, generating a large plastic deformation, thereby dissipating the earthquake capacity.

[0062] The bridge energy dissipation device in this embodiment can adapt to the longitudinal displacement, lateral displacement and rotation function requirements of the bridge under normal circumstances, and can deform and dissipate energy in a timely manner during an earthquake. There is no idle stroke during the energy dissipation process, and the energy dissipation capacity is strong.

[0063] In this embodiment, a first connecting seat 120 is provided on both sides of the side wall of one side of the first reaction seat 100 facing the second reaction seat 200 in the transverse bridge direction. The first connecting seat 120 is arranged along the longitudinal bridge direction, and one end is connected to the first reaction seat 100 by a first connecting bolt 120. A first mounting groove 121 is provided on the end surface of the other end of the first connecting seat 120. The groove length direction of the first mounting groove 121 is in the transverse bridge direction. Therefore, the remaining part after the first mounting groove 121 is provided on the end surface of the first connecting seat 120 forms a first upper arm 122 and a first lower arm 123. Corresponding through connecting pin holes are provided on the first upper arm 122 and the first lower arm 123. Similarly, a second connecting seat 220 is provided on both sides of the side wall of one side of the second reaction seat 200 facing the second reaction seat 100 in the transverse bridge direction. The second connecting seat 220 is arranged along the longitudinal bridge direction, and one end is connected to the second reaction seat 200 by a second connecting bolt 210. The second connecting seat 220 is provided with a second mounting groove 221 on the other end face. The groove length direction of the second mounting groove 221 is the transverse bridge direction. Thus, the remaining part after the second mounting groove 221 is provided on the end face of the second connecting seat 220 forms a second upper arm 222 and a second lower arm 223. The second upper arm 222 and the second lower arm 223 are provided with corresponding through-connecting pin holes. After the first reaction seat 100 and the second reaction seat 200 are installed, the first connecting seat 120 and the second connecting seat 220 correspond to each other in position. The speed lock assembly 300 has two first ear plates 350 and two second ear plates 360 arranged up and down on both sides of the transverse bridge direction. The two first ear plates 350 and the two second ear plates 360 are also provided with corresponding through-connecting pin holes respectively. The three connecting arm end regions of the first E-shaped steel connector 600 and the second E-shaped steel connector 700 are provided with connecting pin holes respectively. The three connecting arm end portions of the first E-shaped steel connector 600 are respectively located between the first upper arm 122 and the first lower arm 123, between the two first ear plates 350, and between the second upper arm 222 and the second lower arm 223, and the first shear pin 800 is inserted through the connecting pin hole to realize the movable connection between the first E-shaped steel connector 600 and the first reaction seat 100, the speed lock assembly 300 and the second reaction seat 200. Similarly, the three connecting arm end portions of the second E-shaped steel connector 700 are respectively located between the first upper arm 122 and the first lower arm 123, between the two second ear plates 360, and between the second upper arm 222 and the second lower arm 223, and the second shear pin 900 is inserted through the connecting pin hole to realize the movable connection between the second E-shaped steel connector 700 and the first reaction seat 100, the speed lock assembly 300 and the second reaction seat 200.

[0064] Furthermore, there is a rotation gap W between the bottom and side walls of the first mounting groove 121 and the adjacent surfaces of the first E-shaped steel connector 600 and the second E-shaped steel connector 700, as well as between the bottom and side walls of the second mounting groove 221 and the adjacent surfaces of the first E-shaped steel connector 600 and the second E-shaped steel connector 700, so that the bridge energy dissipation device can adapt well to the directional rotation of the bridge, avoiding deformation of the first E-shaped steel connector 600 and the second E-shaped steel connector 700 due to the rotation of the bridge during normal use, preventing them from fatigue damage, thereby ensuring the stability of the bridge energy dissipation device.

[0065] Figure 4 for Figure 1 Further, the diameter of the first shear pin 800 is smaller than the diameter of the corresponding connecting pin holes on the first upper arm 122, the first lower arm 123, the two first ear plates 350, the second upper arm 222 and the second lower arm 223. The first shear pin 800 is sleeved with a first joint bearing 810 at both ends. Figure 4 As shown in . The first joint bearing 810 is located in the connecting pin hole, and a first elastic retaining ring 820 is provided between the outer wall of the first joint bearing 810 and the inner wall of the connecting pin hole to limit the first joint bearing 810 in the corresponding connecting pin hole. As a result, the first connecting seat 120 and the second connecting seat 220 can rotate in all directions relative to the first E-shaped steel connector 600 and the second E-shaped steel connector 700, and it is beneficial to extend the service life of the first shear pin 800. Similarly, the diameter of the second shear pin 900 is smaller than the diameter of the corresponding connecting pin hole on the first upper arm 122, the first lower arm 123, the two first ear plates 350, the second upper arm 222 and the second lower arm 223. The second joint bearings are respectively sleeved at the upper and lower ends of the second shear pin 900. The second joint bearing is located in the connecting pin hole, and a second elastic retaining ring is provided between the outer wall of the second joint bearing and the inner wall of the connecting pin hole. Therefore, the first connecting seat 120 and the second connecting seat 220 can rotate in various directions relative to the first E-shaped steel connecting piece 600 and the second E-shaped steel connecting piece 700, which is beneficial to prolonging the service life of the second shear pin 900.

[0066] In this embodiment, one first E-shaped steel connector 600 may be provided, or a plurality of first E-shaped steel connectors 600 may be provided stacked up and down. Similarly, one second E-shaped steel connector 700 may be provided, or a plurality of second E-shaped steel connectors 700 may be provided stacked up and down. The number of the first E-shaped steel connector 600 and the second E-shaped steel connector 700 may be considered according to the actual use scenario and processing factors, so as to expand the application scope of the bridge energy dissipation device.

[0067] Figure 5It is a cross-sectional view of the combined structure of the speed lock assembly and the base plate assembly. In this embodiment, the base plate assembly 400 includes a base plate 410. The two ends of the base plate 410 adjacent to the first reaction seat 100 and the second reaction seat 200 are respectively connected to the pier as a whole through the anchor assembly 500. A slide groove 411 is provided on the upper surface of the base plate 410. A longitudinal sliding plate 412 is provided in the slide groove 411. The longitudinal sliding plate 412 is roughly in the shape of a rectangular plate, and its length in the longitudinal bridge direction is less than the length of the slide groove 411 in the longitudinal bridge direction. A bottom slide plate 413 and a bottom stainless steel plate 414 are provided between the lower surface of the longitudinal sliding plate 412 and the bottom of the slide groove 411. The bottom slide plate 413 is connected to the longitudinal sliding plate 412 as a whole, and forms a sliding pair with the bottom stainless steel plate 414. As a result, the longitudinal sliding plate 412 can slide freely upward in the slide groove 411 in the longitudinal bridge, thereby adapting to the longitudinal displacement of the bridge. The bottom plate 410 has a first limit plate 415 and a second limit plate 416 on both sides in the longitudinal direction of the bridge. The first limit plate 415 and the second limit plate 416 are roughly L-shaped. The vertical parts of the first limit plate 415 and the second limit plate 416 are respectively facing the transverse direction of the bridge and are parallel to each other. The remaining parts of the first limit plate 415 and the second limit plate 416 are connected to the bottom plate 410 through the third connecting bolt 417. The first limit plate 415 and the second limit plate 416 are respectively provided with a first end stainless steel plate 4151 and a second end stainless steel plate 4161 on the parallel opposite sides. The speed lock assembly 300 forms a sliding pair with the first end stainless steel plate 4151 and the second end stainless steel plate 4161 at both ends in the longitudinal direction of the bridge. At the same time, the bottom of the speed lock assembly 300 facing the longitudinal sliding plate 412 also forms a sliding pair with the longitudinal sliding plate 412. As a result, the speed lock assembly 300 can slide freely in the transverse direction of the bridge, thereby adapting to the lateral displacement of the bridge.

[0068] Furthermore, a plurality of first triangular support ribs 4152 and second triangular support ribs 4162 are further provided on the first limiting plate 415 and the second limiting plate 416. Figure 5 The first triangular support rib 4152 and the second triangular support rib 4162 can improve the structural stability of the first limiting plate 415 and the second limiting plate 416.

[0069] Furthermore, in the present embodiment, the speed locker assembly 300 includes a speed locker body 310. The first end slider 320 and the second end slider 330 are respectively provided at both ends of the speed locker body 310 in the longitudinal bridge direction. The first end slider 320 and the second end slider 330 respectively form a sliding pair with the first end surface stainless steel plate 4151 and the second end surface stainless steel plate 4161. The speed locker assembly 300 is provided with a locker slide plate 340 toward the bottom of the longitudinal sliding plate 412, and the corresponding longitudinal sliding plate 412 has an upper surface stainless steel plate 417 on its upper surface. The locker slide plate 340 forms a sliding pair with the upper surface stainless steel plate 417. In the present embodiment, the first end slider 320, the second end slider 330, the locker slide plate 340 and the bottom slide plate 413 are all made of self-lubricating materials such as polytetrafluoroethylene, so as to have a good self-lubricating effect.

[0070] Furthermore, the slide groove 411 has longitudinal clamping plates 418 on both sides in the transverse direction. The longitudinal clamping plates 418 are arranged along the longitudinal direction and connected to the bottom plate 410 through clamping bolts 419. The longitudinal sliding plate is located between the lower surface of the longitudinal clamping plate 418 and the bottom of the slide groove 411 on both sides in the transverse direction, and is in sliding contact with the lower surface of the longitudinal clamping plate 418, thereby limiting the vertical displacement of the longitudinal sliding plate 412.

[0071] Furthermore, the longitudinal sliding plate 412 has protruding mounting portions 420 on both sides in the longitudinal bridge direction. The protruding mounting portions 420 are arranged along the transverse bridge direction, and the two ends of their length are respectively in sliding contact with the two longitudinal clamping plates 418. The upper surface stainless steel plate 417 is located on the upper surface portion of the longitudinal sliding plate 412 between the two protruding mounting portions 420. A transverse clamping plate 421 is installed on the protruding mounting portion 420 by means of a clamping bolt 419, forming a similar inverted L-shaped structure. The speed lock body 310 has protruding limiting portions 311 on both sides in the longitudinal bridge direction toward the bottom of the longitudinal sliding plate 412. The protruding limiting portion 311 extends into the area between the lower surface of the transverse clamping plate 421 and the upper surface of the longitudinal sliding plate 412, and is in sliding contact with the lower surface of the transverse clamping plate 421, thereby limiting the speed lock body from producing vertical displacement and horizontal rotational offset.

[0072] It should be noted that any existing speed locker or speed locking device can be used as the speed locker body in this embodiment after being adaptively adjusted according to needs.

Claims

1. A bridge energy dissipation device, characterized in that: include: A first reaction seat, wherein the first reaction seat is installed on the corresponding beam body; A second reaction seat, the second reaction seat is installed on the corresponding beam body; along the longitudinal bridge direction, the second reaction seat and the first reaction seat are arranged opposite to each other; A bottom plate assembly, the bottom plate assembly is located between the first reaction seat and the second reaction seat, and is installed on the corresponding pier along the longitudinal direction of the bridge; A speed locker assembly, the speed locker assembly is located between the first reaction seat and the second reaction seat and is located on the base plate assembly; the speed locker assembly can slide freely in the longitudinal bridge direction and the transverse bridge direction on the base plate assembly; A first E-shaped steel connector, which is arranged along the longitudinal bridge direction and located on one side of the speed locker assembly in the transverse bridge direction; along the longitudinal bridge direction, three connecting arms of the first E-shaped steel connector are movably connected to the first reaction seat, the speed locker assembly and the second reaction seat in sequence; A second E-shaped steel connector is arranged along the longitudinal bridge direction and is located on the other side of the speed locker assembly in the transverse bridge direction; along the longitudinal bridge direction, the three connecting arms of the second E-shaped steel connector are movably connected with the first reaction seat, the speed locker assembly and the second reaction seat in sequence.

2. The bridge energy dissipation device according to claim 1, characterized in that: The first reaction seat is provided with first connecting seats on both sides of the transverse bridge direction; the first connecting seat has a first mounting groove, a first upper arm and a first lower arm on one end surface; the first upper arm and the first lower arm are provided with corresponding connecting pin holes; The second reaction seat is provided with a second connecting seat on both sides of the transverse bridge direction; the second connecting seat corresponds to the first connecting seat one by one; the end surface of one end of the second connecting seat has a second mounting groove, and a second upper support arm and a second lower support arm; the second upper support arm and the second lower support arm are provided with corresponding through connecting pin holes; The speed lock assembly has two first ear plates and two second ear plates arranged vertically on both sides of the transverse bridge; the two first ear plates and the two second ear plates are respectively provided with corresponding connecting pin holes; The three connecting arm end regions of the first E-shaped steel connecting member and the second E-shaped steel connecting member are respectively provided with connecting pin holes; The three connecting arm end portions of the first E-shaped steel connecting member are respectively located between the first upper arm and the first lower arm, between the two first ear plates, and between the second upper arm and the second lower arm, and a first shear pin is inserted into the connecting pin hole; The three connecting arm end portions of the second E-shaped steel connecting member are respectively located between the first upper arm and the first lower arm, between the two second ear plates, and between the second upper arm and the second lower arm, and a second shear pin is passed through the connecting pin hole.

3. The bridge energy dissipation device according to claim 2, characterized in that: There is a rotational gap between the bottom and side walls of the first mounting groove and the adjacent surfaces of the first E-shaped steel connector and the second E-shaped steel connector, and between the bottom and side walls of the second mounting groove and the adjacent surfaces of the first E-shaped steel connector and the second E-shaped steel connector.

4. The bridge energy dissipation device according to claim 2, characterized in that: The first joint bearing is sleeved on the upper and lower ends or one end of the first shear pin; the first joint bearing is located in the corresponding connecting pin hole; a first elastic retaining ring is provided between the outer wall of the first joint bearing and the inner wall of the connecting pin hole; The second shear pin is sleeved with a second joint bearing at both ends or one end; the second joint bearing is located in the corresponding connecting pin hole; a second elastic retaining ring is provided between the outer wall of the second joint bearing and the inner wall of the connecting pin hole.

5. The bridge energy dissipation device according to claim 1, characterized in that: The first E-shaped steel connector may be provided in one piece or in a plurality of pieces stacked one above the other; The second E-shaped steel connecting member may be provided as one or a plurality of the second E-shaped steel connecting members stacked one above the other.

6. The bridge energy dissipation device according to any one of claims 1 to 5, characterized in that: The base plate assembly comprises: A bottom plate, wherein the upper surface of the bottom plate has a slide groove; A longitudinal sliding plate, the longitudinal sliding plate being located in the sliding groove; An upper surface stainless steel plate, the upper surface stainless steel plate is arranged on the upper surface of the longitudinal sliding plate and forms a sliding pair with the bottom of the speed lock assembly; A bottom stainless steel plate, the bottom stainless steel plate being arranged at the bottom of the chute; A bottom slide plate, which is arranged on the lower surface of the longitudinal sliding plate and forms a sliding pair with the bottom stainless steel plate; An L-shaped first limit plate, the first limit plate is arranged at one end of the bottom plate in the longitudinal direction of the bridge; the vertical part of the first limit plate faces the transverse direction of the bridge; A first end surface stainless steel plate, which is disposed on the vertical portion of the first limit plate and forms a sliding pair with one end of the speed lock assembly in the longitudinal direction; An L-shaped second limit plate, the second limit plate being arranged at the other end of the bottom plate in the longitudinal direction of the bridge; the vertical portion of the second limit plate being parallel to the vertical portion of the first limit plate; A second end surface stainless steel plate, wherein the second end surface stainless steel plate is arranged on the vertical portion of the second limit plate and forms a sliding pair with the other end of the speed lock assembly in the longitudinal direction of the bridge.

7. The bridge energy dissipation device according to claim 6, characterized in that: A plurality of first triangular supporting ribs and second triangular supporting ribs are disposed on the first limiting plate and the second limiting plate.

8. The bridge energy dissipation device according to claim 6, characterized in that: The speed lock assembly comprises: Speed ​​lock body; A first end slider, which is arranged at one end of the speed lock body in the longitudinal direction of the bridge and forms a sliding pair with the first end stainless steel plate; A second end slider, which is arranged at the other end of the speed lock body in the longitudinal direction of the bridge and forms a sliding pair with the second end surface stainless steel plate; A locker slide plate is arranged at the bottom of the speed locker body and forms a sliding pair with the upper surface stainless steel plate.

9. The bridge energy dissipation device according to claim 8, characterized in that: The slide groove has longitudinal clamping plates on both sides of the transverse bridge; the longitudinal clamping plates are arranged along the longitudinal bridge and connected to the bottom plate; the edges of the longitudinal sliding plates on both sides of the transverse bridge are located between the lower surface of the longitudinal clamping plates and the bottom of the slide groove, and the two are in sliding contact.

10. The bridge energy dissipation device according to claim 9, characterized in that: The longitudinal sliding plate has protruding mounting parts on both sides of the longitudinal bridge direction; the protruding mounting parts are arranged along the transverse bridge direction, and the two ends of their length are respectively in sliding contact with the two longitudinal clamping plates; a transverse clamping plate is provided on the protruding mounting parts; the bottom of the speed locker body has protruding limiting parts on both sides of the longitudinal bridge direction; the protruding limiting parts extend into the area between the lower surface of the transverse clamping plate and the upper surface of the longitudinal sliding plate, and the two are in sliding contact.

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