CN215329355U

CN215329355U - Flexible bridge structure

Info

Publication number: CN215329355U
Application number: CN202120201836.3U
Authority: CN
Inventors: 彭康; 虞庐松; 李子奇; 王力
Original assignee: Lanzhou Jiaotong University
Current assignee: Lanzhou Jiaotong University
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-12-28
Anticipated expiration: 2031-01-25

Abstract

The utility model provides a flexible bridge structure, and relates to the technical field of bridge engineering. This flexible bridge structures includes: the main beam, the stop block and the main beam are connected through the elastic component, and one side of the stop block and one side of the main beam are respectively connected with two ends of the elastic component; when great impact such as earthquake occurs, the stop block can form a buffer effect with the main beam, and overlarge impact cannot be generated between the stop block and the main beam, so that the condition that the stop block is sheared and damaged is avoided.

Description

Flexible bridge structure

Technical Field

The utility model relates to the technical field of bridge engineering, in particular to a flexible bridge structure.

Background

When the bridge receives great striking effect such as earthquake, the dog that sets up in bridge bent cap both sides is as the horizontal stop device of bridge, can receive very big impact this moment to produce the crack, destroy even. And once the stop block is damaged, the irrecoverable accident of bridge collapse occurs, thereby having great influence on the safe operation of the bridge.

Ordinary dog usually carries out fixed connection through materials such as reinforcing bar or concrete between and the bent cap, then dog and girder direct contact, if meet when great degree impact such as earthquake, lead to dog and girder to produce the striking easily to lead to the dog to take place to cut and destroy, lead to even that the dog is cut off completely, take place irreparable major accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flexible bridge structure, which can form a buffer effect between a stop block and a main beam when large impact such as earthquake occurs, and the like, so that excessive impact between the stop block and the main beam is avoided, and the condition that the stop block is sheared and damaged is avoided.

The embodiment of the utility model is realized by the following steps:

the embodiment of the application provides a flexible bridge structures, includes: girder, dog and elastic component, be connected through elastic component between dog and the girder, one side of dog and one side of girder are connected with elastic component's both ends respectively. The bridge structure further comprises cover beams and supports, the stop blocks are arranged on two sides of each cover beam, the cover beams are connected with the main beams through the supports, and the main beams are connected with the stop blocks through elastic assemblies, so that a stable bridge structure is formed. The support is used for supporting the main beam, and various loads borne by the main beam are transmitted to the bent cap, so that the conditions of displacement and the like caused by factors such as live load, temperature change, concrete shrinkage and the like can be adapted, and the upper structure and the lower structure can be uniformly stressed. And the dog can prevent that the bridge from taking place horizontal great displacement under horizontal earthquake effort, and elastic component sets up between girder and dog, avoids the girder to produce the collision between dog and girder when receiving horizontal earthquake to lead to dog or girder impaired, play the cushioning effect between girder and dog.

In some embodiments of the present invention, the elastic assembly includes a main elastic member, the main elastic member includes a main guide rod and a main spring sleeved on the main guide rod, and two ends of the main elastic member are respectively connected to the stopper and the main beam. When the main guide rod of wherein main spring endotheca was established mainly avoided producing the extrusion between dog and girder, the spring shrink was inhomogeneous, avoided horizontal main spring to produce the ascending deformation of vertical side when the shrink, leaded to the inhomogeneous and further leaded to the impaired condition of main spring to appear of buffering effort between dog and girder.

In some embodiments of the present invention, the elastic assembly further includes an auxiliary elastic member, the auxiliary elastic member includes an auxiliary guide rod and an auxiliary spring sleeved on the auxiliary guide rod, two ends of the auxiliary elastic member are respectively connected to the stopper and the main beam, and a stiffness of the auxiliary spring is smaller than a stiffness of the main spring. Wherein the rigidity, internal diameter and external diameter isoparametric of auxiliary spring all slightly are less than main spring, compare main spring cost lower, consequently set up auxiliary spring and not only can play the buffering effect between auxiliary main spring reinforcing girder and dog, compare moreover and set up a plurality of main springs and more practice thrift the cost. And the auxiliary guide rod in the auxiliary spring can also avoid the auxiliary spring from generating deformation in the vertical direction when contracting, so that the buffer acting force between the stop block and the main beam is uneven, and the auxiliary spring is further damaged.

In some embodiments of the present invention, the elastic assembly further includes a backing plate, the backing plate includes a top plate and a bottom plate, one end of the main elastic member is connected to the stopper through the bottom plate, the other end of the main elastic member is connected to the main beam through the top plate, one end of the auxiliary elastic member is connected to the stopper through the bottom plate, and the other end of the auxiliary elastic member is connected to the main beam through the top plate. Wherein main elastic component and assistance elastic component pass through the bottom plate, the roof is connected with girder, dog, avoid main elastic component and assistance elastic component direct and dog and girder connection to avoid main elastic component and assistance elastic component to produce pressure to girder and dog part when the shrink, thereby it is inhomogeneous to lead to dog and girder atress, and the atress position pressure that causes dog and girder is great, thereby makes dog and girder damaged. And the top plate and the bottom plate can ensure that the buffer force received by the main beam and the stop block is uniform, and the local pressure intensity received by the main beam and the stop block is avoided being overlarge, so that the service lives of the main beam and the stop block are prolonged.

In some embodiments of the present invention, a main guide sleeve is disposed between the main guide bar and the pad plate. The main guide rod is connected with the bottom plate and/or the top plate through the main guide sleeve, and friction between the main guide rod and the top plate and/or the bottom plate is avoided, so that the main guide rod is damaged when the main elastic part is extruded.

In some embodiments of the present invention, an auxiliary guide sleeve is disposed between the auxiliary guide rod and the pad plate. The auxiliary guide rod is connected with the bottom plate and/or the top plate through the auxiliary guide sleeve, so that friction between the auxiliary guide rod and the top plate and/or the bottom plate is avoided, and the auxiliary guide rod is damaged when the auxiliary elastic part is extruded.

In some embodiments of the present invention, the auxiliary elastic members are symmetrically disposed with respect to the main elastic member. The number of the auxiliary springs can be 0-16, the number of the main springs can be 1-2, the auxiliary springs are symmetrically arranged by taking the main springs as centers, so that the buffer acting force between the baffle and the main beam can be ensured to be uniform as far as possible, the conditions that the stress is not uniform, the local stress is large, the local stress is small or even is not stressed are avoided, and the whole flexible bridge structure is more stable.

In some embodiments of the utility model, the primary and secondary springs are disc springs. The belleville springs can bear an extremely large load in a small space. Compared with other types of springs, the disc spring has larger deformation energy per unit volume and good buffering and shock absorbing capacity, and particularly has more remarkable effects of absorbing impact and dissipating energy due to the surface friction resistance effect when the disc spring is combined in a folding mode. The disc spring can obtain different bearing capacity and characteristic curve by changing the number of discs or the combination form of the discs, so that discs of each size can adapt to a wide application range, preparation and management of spare parts are easy, and the difficulty of operators is greatly reduced. The disk spring is composed of a plurality of disk spring pieces, when a part of disks are damaged or rusted due to long time, only a part of disks need to be replaced, and the maintenance cost is greatly reduced.

In some embodiments of the present invention, a first damping plate is disposed between the top plate and the main beam, and a second damping plate is disposed between the bottom plate and the stopper. Through be provided with the shock attenuation board between roof and girder, dog and bottom plate, alleviate when elastic component shrink to girder and the produced pressure of dog, avoid because pressure is too big, lead to girder, dog, bottom plate and roof damage to prolong the life-span of whole flexible bridge structure, reduced cost of maintenance, and increased factor of safety.

In some embodiments of the present invention, an embedded part is disposed between the second damping plate and the stop block. The built-in fitting can more conveniently let the dog be connected with bottom plate or roof, because the dog has multiple shape, the dog is not the plane but the inclined plane with the face that the girder is close most of the time, if the inclined plane is direct to be connected with the bottom plate, then connect probably insecurely, and also can arouse in the elastic component main elastic component and assist the elastic component can not stretch naturally, consequently set up in the dog and be used for the built-in fitting of being connected with the bottom plate can guarantee the firm in connection of dog and bottom plate, and make the interior main elastic component of elastic component stretch naturally with assisting the elastic component.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

the utility model provides a flexible bridge dog still includes bent cap and support, and the dog setting is in the both sides of bent cap, is connected through the support between bent cap and girder, and the girder passes through elastic component again and is connected with the dog to stable bridge construction has been formed. The support is used for supporting the main beam, and various loads borne by the main beam are transmitted to the bent cap, so that the conditions of displacement and the like caused by factors such as live load, temperature change, concrete shrinkage and the like can be adapted, and the upper structure and the lower structure can be uniformly stressed. And the dog can prevent that the bridge from taking place horizontal great displacement under horizontal earthquake effort, and elastic component sets up between girder and dog, avoids the girder to produce the collision between dog and girder when receiving horizontal earthquake to lead to dog or girder impaired, play the cushioning effect between girder and dog.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a top view of a spring assembly in an embodiment of the present invention;

FIG. 3 is a first side view of a main spring in an elastomeric component in accordance with an embodiment of the present invention;

FIG. 4 is a first side view of a secondary spring in an elastomeric assembly in accordance with an embodiment of the present invention;

FIG. 5 is a second side view of the main spring of the spring assembly in accordance with an embodiment of the present invention;

FIG. 6 is a second side view of a secondary spring in the spring assembly in accordance with an embodiment of the present invention;

FIG. 7 is a side view of a spring assembly in an embodiment of the present invention.

Icon: 1-a main beam; 2-an elastic component; 211-a primary elastic member; 212-a secondary elastic member; 201-main spring; 202-an auxiliary spring; 203-a top plate; 204-a bottom plate; 205-main guide sleeve; 206-a guide sleeve; 207-main guide bar; 208-a secondary guide bar; 3-a second damping plate; 4-a stop block; 5-a first damping plate; 6-embedded parts; 7-a capping beam; 8-support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "vertical", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of describing the present invention and simplifying the description, but the indication or the suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "vertical" and the like, if present, does not mean that the component is absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1, fig. 1 is a front view of the present invention.

The present embodiment provides a flexible bridge structure, including: girder 1, dog 4 and elastic component 2, dog 4 is connected through elastic component 2 with girder 1 within a definite time, and one side of dog 4 and one side of girder 1 are connected with elastic component 2's both ends respectively. Still including bent cap 7 and support 8, dog 4 sets up in the both sides of bent cap 7, with girder 1 clamp in the middle of, elastic component 2 sets up between dog 4 and girder 1, links together girder 1 and dog 4, and elastic component 2 and girder 1 and dog 4's connection all adopt welded mode, also can select for use modes such as bolted connection in other embodiments. Support 8 sets up between bent cap 7 and girder 1, transmits the load that girder 1 received for bent cap 7 through support 8 to avoid girder 1 to take place displacement and skew, support 8 is pendulum post formula support in this embodiment, and the kind of concrete support 8 is decided according to the kind of bridge, still can be for plate support, basin formula support, spherical support etc.. The concrete wall that dog 4 was built by cement in this embodiment does not do specific limitation under the prerequisite of guaranteeing 4 firm in structure of dog, tolerance good and can support the bridge and do not take place lateral displacement. The size of the stop block 4 is determined according to the size of the main beam 1, so that the main beam 1 can be supported without transverse movement. The first damping plate 5 and the second damping plate 3 which are respectively arranged between the elastic component 2 and the main beam 1 and the stop block 4 can offset the pressure formed between part of the elastic component 2 and the main beam 1 and the stop block 4 when the bridge generates transverse displacement, and the elastic component 2, the stop block 4 and the main beam 1 are prevented from being damaged. The second damping plate 3 is connected with the stop block 4 through the embedded part 6, the embedded part 6 can facilitate the connection of the stop block 4 with other parts, in the embodiment, the embedded part 6 is a steel bar, and in other embodiments, the embedded part 6 can also be made of other materials such as aluminum alloy.

Example 2

Referring to fig. 2-4, fig. 2 is a top view of the elastic assembly 2 of the present invention, fig. 3 is a side view of the main spring 201 of the elastic assembly 2 of the present invention, and fig. 4 is a side view of the auxiliary spring 202 of the elastic assembly 2 of the present invention.

This embodiment provides an elastic component 2, and this elastic component 2 includes main elastic component 211, and main elastic component 211 includes main guide bar 207 and overlaps the main spring 201 of establishing on main guide bar 207, and the both ends of main elastic component 211 are connected with dog 4 and girder 1 respectively. The elastic component 2 further comprises an auxiliary elastic part 212, the auxiliary elastic part 212 comprises an auxiliary guide rod 208 and an auxiliary spring 202 sleeved on the auxiliary guide rod 208, two ends of the auxiliary elastic part 212 are respectively connected with the stop block 4 and the main beam 1, and the rigidity of the auxiliary spring 202 is smaller than that of the main spring 201. In the present embodiment, the secondary spring 202 and the primary spring 201 are both disc springs, and the disc springs can bear an extremely large load in a small space. And the deformation energy of the unit volume of the disc spring is larger, the disc spring has good buffering and shock absorption capacity, and particularly when the disc spring is combined in a superposition mode, the effects of absorbing impact and dissipating energy are more remarkable due to the effect of surface friction resistance. The disk spring is composed of a plurality of disk spring pieces, when a part of disks are damaged or rusted due to long time, only a part of disks need to be replaced, and the maintenance cost is greatly reduced. The inner diameter of the main spring 201 is larger than that of the auxiliary spring 202, the outer diameter of the main spring 201 is larger than that of the auxiliary spring 202, the difference between the inner diameter and the outer diameter of the main spring 201 is larger than that of the auxiliary spring 202, and various coefficients such as hardness and rigidity of the main spring 201 are higher than those of the auxiliary spring 202, so that the elastic component 2 is ensured to have sufficient buffering force, and the cost is ensured to be minimized. In other embodiments, the primary spring 201 and the secondary spring 202 may be other springs such as coil springs with a larger stiffness coefficient. In this embodiment, the main guide rod 207 and the auxiliary guide rod 208 are stainless steel guide rods, and the main guide rod 207 and the auxiliary guide rod 208 may be made of other aluminum alloy materials.

The elastic component 2 further comprises a backing plate, the backing plate comprises a top plate 203 and a bottom plate 204, one end of the main elastic piece 211 is connected with the stop block 4 through the bottom plate 204, the other end of the main elastic piece 211 is connected with the main beam 1 through the top plate 203, one end of the auxiliary elastic piece 212 is connected with the stop block 4 through the bottom plate 204, and the other end of the auxiliary elastic piece 212 is connected with the main beam 1 through the top plate 203. In this embodiment, the main elastic member 211 and the auxiliary elastic member 212 are connected to the bottom plate 204 and the top plate 203 by welding, or may be connected by bolts or the like. In this embodiment, the top plate 203 and the bottom plate 204 are made of steel plates with low carbon content and an outer layer plated with an oxidation resistant film, or other metal materials with high hardness such as titanium alloy.

A main guide sleeve 205 is arranged between the main guide rod 207 and the backing plate. An auxiliary guide sleeve 206 is arranged between the auxiliary guide rod 208 and the backing plate. The main guide sleeve 205 and the auxiliary guide sleeve 206 can reduce friction between the guide rod and the top plate 203 and/or the bottom plate 204, and prolong the durability of the entire elastic assembly 2. In this embodiment, the main guide sleeve 205 is disposed between the main guide rod 207 and the top plate 203, the auxiliary guide sleeve 206 is disposed between the auxiliary guide rod 208 and the top plate 203, in other embodiments, the main guide sleeve 205 may be disposed between the main guide rod 207 and the bottom plate 204, the auxiliary guide sleeve 206 may be disposed between the auxiliary guide rod 208 and the bottom plate 204, and the main guide sleeve 205 and the auxiliary guide rod 208 may be disposed between the main guide rod 207 and the auxiliary guide rod 208 and between the top plate 203 and the bottom plate 204. In this embodiment, the main guide sleeve 205 and the auxiliary guide sleeve 206 are both rubber sleeves, rubber has good elasticity, a space is reserved for deformation of the main spring 201 and the auxiliary spring 202, and the rubber can also be insulated to avoid static electricity generated by friction, and is smooth, so that friction between the guide rod and the top plate 203 and/or the bottom plate 204 can be reduced to a certain extent, and the guide sleeves can also be made of materials such as PVC. In this embodiment, the guide sleeve is only sleeved on the end position of the guide rod and is not sleeved on the spring or the whole guide rod, so that the friction force of the contact surface between the guide rod and the base plate is reduced. In other embodiments, the uide bushing can also overlap and establish on whole guide bar, separates whole guide bar and external environment, avoids the guide bar to receive the damage that external environments such as corruption lead to, prolongs the life of guide bar, can also insulate. In other embodiments, the guide rod can also be sleeved on the spring and the guide rod, so that the spring is protected, and the service life of the spring is prolonged.

The auxiliary elastic members 212 are symmetrically disposed about the main elastic member 211. Since the coefficient of stiffness, etc. of the main elastic member 211 is generally larger than the same coefficient of the auxiliary elastic member 212, the auxiliary elastic member 212 is placed around the main elastic member 211 to assist the main elastic member 211 in stretching or contracting. In this embodiment, the auxiliary elastic member 212 is disposed around the main elastic member 211 in a rectangular shape with the main elastic member 211 as a center, so as to ensure the uniform stress on the pad plate and thus the stability of the whole flexible bridge structure. In addition, the auxiliary elastic member 212 may be disposed around the main elastic member 211 in a circular shape centering on the main elastic member 211. The number of the main elastic members 211 is usually 1-2, and the number of the auxiliary elastic members 212 is changed according to the number of the main elastic members 211, and the auxiliary elastic members 212 are arranged symmetrically at least with respect to the main elastic members 211. In this embodiment, the number of the main elastic members 211 is 1, the number of the auxiliary elastic members 212 is 8, in other embodiments, the number of the main elastic members 211 is 1, the number of the auxiliary elastic members 212 may be 4, the number of the main elastic members 211 may also be 2, and the number of the auxiliary elastic members 212 may be 12.

The working principle of the flexible bridge structure provided by the utility model is as follows: when the bridge received huge transverse impact, lead to producing extrusion or dragging between girder 1 and dog 4 to make elastic component 2 shrink or tensile, and to dog 4 and girder 1 produce outside thrust or inward pulling force, guarantee that dog 4 does not with under the prerequisite of girder 1 direct contact, offset the huge effort that transverse impact produced, guarantee the firm of bridge.

In summary, the embodiment of the present invention provides a flexible bridge structure, which has the following beneficial effects:

the flexible bridge structure further comprises cover beams 7 and supports 8, the stop blocks 4 are arranged on two sides of the cover beams 7, the cover beams 7 are connected with the main beam 1 through the supports 8, and the main beam 1 is connected with the stop blocks 4 through the elastic assemblies 2, so that a stable bridge structure is formed. The support 8 is used for supporting the main beam 1, various loads borne by the main beam 1 are transmitted to the cover beam 7, and the movable support can adapt to the conditions of displacement and the like caused by factors such as live load, temperature change, concrete shrinkage and the like, so that the upper structure and the lower structure can be uniformly stressed. And dog 4 can prevent that the bridge from taking place horizontal great displacement under horizontal earthquake effort, and elastic component 2 sets up between girder 1 and dog 4, avoids girder 1 to produce the collision between dog 4 and girder 1 when receiving horizontal earthquake to lead to dog 4 or girder 1 impaired, play the cushioning effect between girder 1 and dog 4.

Secondly, the elastic component 2 not only comprises the main spring 201, but also comprises the auxiliary spring 202, and the main spring 201 and the auxiliary spring 202 are combined for use, so that the buffering effect of the elastic component 2 is enhanced, the cost is saved, and a plurality of main springs 201 are not required to be arranged. In addition, the auxiliary springs 202 are symmetrically arranged by taking the main spring 201 as a center, so that the uniform stress of the stop block 4 and the main beam 1 is ensured, and the unstable bridge structure and even partial damage of the stop block 4 and the main beam 1 caused by nonuniform stress are avoided. Thereby the guide bar of the inside setting of spring can avoid the spring to produce the ascending stress that leads to the spring of vertical direction and can not utilize completely at tensile or shrink's in-process, causes stress loss, and even the not enough condition of stress still can lead to the spring to produce the distortion more seriously, leads to elastic component 2 impaired.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible bridge construction, comprising: girder, dog and elastic component, pass through between dog and the girder elastic component connects, one side of dog with one side of girder respectively with elastic component's both ends are connected, elastic component includes main elastic component, main elastic component includes main guide bar and cover and establishes main spring on the main guide bar, main elastic component's both ends respectively with dog and girder are connected.

2. The flexible bridge structure of claim 1, wherein the elastic assembly further comprises an auxiliary elastic member, the auxiliary elastic member comprises an auxiliary guide rod and an auxiliary spring sleeved on the auxiliary guide rod, two ends of the auxiliary elastic member are respectively connected with the stopper and the main beam, and the stiffness of the auxiliary spring is smaller than that of the main spring.

3. The flexible bridge structure of claim 2, wherein the elastic assembly further comprises a backing plate, the backing plate comprises a top plate and a bottom plate, one end of the main elastic member is connected with the stopper through the bottom plate, the other end of the main elastic member is connected with the main beam through the top plate, one end of the auxiliary elastic member is connected with the stopper through the bottom plate, and the other end of the auxiliary elastic member is connected with the main beam through the top plate.

4. The flexible bridge construction of claim 3, wherein a primary guide bushing is disposed between the primary guide bar and the backing plate.

5. The flexible bridge construction of claim 4, wherein an auxiliary guide bushing is disposed between the auxiliary guide bar and the backing plate.

6. The flexible bridge structure of claim 5, wherein the secondary spring is disposed symmetrically about the primary spring.

7. The flexible bridge structure of any one of claims 2-6, wherein the primary and secondary springs are disc springs.

8. The flexible bridge structure of claim 6, wherein a first shock absorbing plate is disposed between the top plate and the main beam, and a second shock absorbing plate is disposed between the bottom plate and the stop block.

9. The flexible bridge structure of claim 8, wherein an embedded part is disposed between the second damping plate and the stop block.