Three-way energy consumption device for bridge

Abstract

The invention belongs to the technical field of bridge seismic resistance, and particularly provides a three-way energy dissipation device for a bridge and an installation method, the relative displacement deformation between pier beams in any direction can effectively conduct shock absorption and energy dissipation, the situation that the deformation of the beams in different position spaces is inconsistent can be coordinated, and the free rotation design of the two ends of a damper can effectively improve the damping performance. The damper is arranged on the connecting piece, so that the damper cannot be twisted and damaged and is only used for transmitting axial force, the axial force of the damper can drive the connecting piece to move longitudinally, transversely and rotate, the first stop block is used for limiting in the longitudinal direction of a bridge, the second stop block is used for limiting in the transverse direction of the bridge, and the third stop block is used for limiting in the vertical direction. And a three-direction limiting function can be integrated, the device can be conveniently installed between pier beams with narrow space positions, the installation position is flexible, the precision requirement for the installation direction and the space adaptability can be reduced, the energy dissipation capacity can be improved under the same space, and the device is particularly suitable for the scene where beam body deformation is inharmonious.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge seismic resistance technology, in particular to a three-direction energy dissipation device for bridge and installation method. BACKGROUND

[0002] When a bridge is damaged in an earthquake, various damage forms such as main girder drift, support deformation, and pier abutment damage may occur, resulting in the bridge being unable to work normally, and in severe cases, may cause secondary disasters, bringing great challenges to the safety of people's lives and property.

[0003] In order to improve the seismic performance of the bridge structure, a seismic mitigation technology is usually used for seismic design. Bridge structure seismic mitigation technology can be divided into seismic mitigation technology and energy dissipation seismic mitigation technology. Seismic mitigation technology is to separate the movement of the upper structure from the lower structure as much as possible for the bridge structure. Its essence is to reduce the stiffness of the bridge structure and prolong the natural period of the bridge structure, so as to reduce the seismic response of the bridge structure. The seismic mitigation system reduces the structural seismic response by increasing the period of the main mode of the structure or increasing the energy dissipation capacity of the structure. In seismic design, according to the characteristics of the structure and the frequency characteristics of the site seismic wave, appropriate seismic mitigation devices, corresponding parameters and setting schemes are selected to reasonably distribute the stress and deformation of the structure.

[0004] Since the direction of the seismic force is not determined, the seismic mitigation device in the prior art usually needs to be combined with multiple devices to realize the three-direction seismic mitigation and energy dissipation limiting function in the longitudinal bridge direction, the transverse bridge direction and the vertical direction, but the space of the pier girder position is limited, so the installation of the multiple device combination has certain limitations. SUMMARY

[0005] The purpose of the present application is to solve the problem that the seismic mitigation device in the prior art usually needs to be combined with multiple devices to realize the three-direction seismic mitigation and energy dissipation limiting function in the longitudinal bridge direction, the transverse bridge direction and the vertical direction, but the space of the pier girder position is limited, so the installation of the multiple device combination has certain limitations, and to provide a three-direction energy dissipation device for bridge and installation method.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is: In a first aspect, a three-direction energy dissipation device for bridge is provided, comprising: A mounting seat for connecting a pier; A shaft rotatably connected to the mounting seat, the shaft being provided with a slot in the transverse direction thereof, the shaft being longitudinally movable along the mounting seat, and the shaft being provided with a first stopper for limiting the longitudinal displacement of the shaft; The damping assembly comprises two dampers arranged on both sides of the shaft, the dampers are in axial structure, one end of the dampers is connected to a connecting piece in a universal manner, the connecting piece is connected to the slot, the connecting piece can move along the slot in the longitudinal direction and drive the shaft to rotate, the mounting seat is provided with a second stop for limiting the displacement of the connecting piece and a third stop for limiting the rotation displacement of the connecting piece driving the shaft, the other end of the damper is used for connecting the beam in a universal manner; In the initial installation state, the shaft is arranged in the longitudinal bridge direction, the two dampers of the same damping assembly are used for connecting different sections of the same beam or connecting two adjacent beams, and the axial direction of the damers is at an acute angle with the axial direction of the shaft in the vertical direction and the horizontal direction.

[0007] The relative displacement between the pier and the beam can drive the deformation of the damper to reduce the vibration and energy consumption, and then the connecting piece can move along the slot in the longitudinal direction, move along the shaft in the longitudinal direction (drive the shaft to move in the longitudinal direction), and move along the shaft up and down (drive the shaft to rotate).

[0008] The structure of the mounting seat can be designed according to the actual situation, and the cross-sectional size of the shaft can be selected according to the actual arrangement. The number of damping assemblies is determined according to the actual energy consumption demand. The two dampers of the same damping assembly are connected to two different beams, the angle between the damper and the shaft after installation is determined according to the actual situation, and the adaptability is better. The axial direction of the damper is at an acute angle with the axial direction of the shaft in the vertical direction and the horizontal direction, that is, the damper is not parallel or perpendicular to the shaft. The two dampers are used for connecting different sections of the same beam, and the two dampers are used for connecting one end of the beam respectively towards the two ends of the shaft, such as one towards the front and one towards the back.

[0009] The three-way energy dissipation device for a bridge of the present application is used, because the axial direction of the damper is at an acute angle with the axial direction of the shaft in the vertical direction and the horizontal direction, and the two ends are universal, so that the relative displacement deformation between the pier and the beam in any direction, that is, the longitudinal bridge direction, the horizontal bridge direction or the vertical direction, can effectively reduce the vibration and energy consumption. It can also coordinate the inconsistent spatial deformation of different sections of the same beam or the inconsistent spatial deformation of two beams. The free rotation design of the two ends of the damper makes it not subject to its own torsional damage, but only for transmitting axial force. The axial force of the damper drives the longitudinal movement, horizontal movement and rotation of the connecting piece. The first stop is used for longitudinal bridge direction limiting, the second stop is used for horizontal bridge direction limiting, and the third stop is used for vertical direction limiting. The effective combination of the limiting function makes the damper continue to play the role of vibration reduction and energy dissipation. The device not only integrates three-way energy dissipation, but also integrates three-way limiting function, which is convenient to install between the pier and the beam with small space, flexible in installation position, beneficial to reduce the precision requirement of the installation direction and the space adaptability, beneficial to improve the energy dissipation capacity in the same space, especially suitable for scenes with inconsistent beam deformation.

[0010] Preferably, the first stop is a thickened section located in the middle of the shaft, the slot is provided through the thickened section, the connector includes a detachably connected stop block and a columnar member, the damper is connected to the stop block, the columnar member is used to extend into the slot, and the columnar members on both sides of the shaft (1) are connected to each other.

[0011] The thickened section can be part of the shaft or a separate sleeve. The thickened section can be a ring structure or a C-shaped structure.

[0012] Further simplification of the structural design helps to reduce the overall size of the device.

[0013] Preferably, the mounting base includes a base plate, the base plate is provided with two baffles, the shaft passes through the baffles, and a second stop is provided between the two baffles.

[0014] Preferably, the second stop includes an upper connecting beam and a lower crossbar, the two ends of the upper connecting beam are respectively connected to the two baffles, the lower crossbar is disposed on the bottom plate, the column-shaped member is disposed between the upper connecting beam and the lower crossbar, and the upper connecting beam and the lower crossbar form the third stop. Further simplification and integration of the limit function structure helps to reduce the size of the device, and the second stop can also improve the stability of the mounting base and ensure the realization of the limit function.

[0015] Preferably, the damper is a viscous damper or an eddy current damper, and both ends of the damper are connected to the connector and the beam through a chain link structure, and the column is rotatably connected to the shaft.

[0016] Preferably, the rotating contact surface between the columnar member and the shaft is provided with a friction energy dissipation plate.

[0017] Further increase energy consumption capacity.

[0018] Preferably, the damper is a tenon, and both ends of the tenon are spherical tenons.

[0019] Preferably, it also includes a spring, which is used to drive the shaft to return to its longitudinal position.

[0020] Preferably, there are two damping components, which are arranged symmetrically.

[0021] Preferably, the mounting base is replaced by a pier, and the corresponding end of the damper is replaced by a beam.

[0022] Secondly, a method for installing an energy-dissipating device is provided, applied to a three-way energy-dissipating device for a bridge as described above, comprising the following steps: S1. Temporarily support the shaft with connectors on the bridge pier; S2. Install a baffle on one side of the shaft, and then install a second stop and a baffle on the other side; S3. Install the damping components. First, install one end of the damper and connector, then connect the beam to complete the installation. In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The three-dimensional energy dissipation device for bridges according to the present invention, since the axial direction of the damper is at an acute angle to the axial direction of the shaft in both the vertical and horizontal directions, and both ends of the damper are omnidirectionally rotatable, can effectively reduce and dissipate energy in any direction of relative displacement deformation between the pier and the beam, i.e., longitudinal, transverse, or vertical. It can also coordinate the situation where the spatial deformation of different sections of the beam is inconsistent or the spatial deformation of two beams is inconsistent. The free rotation design at both ends of the damper prevents it from torsional failure and only transmits axial force. The axial force of the damper will drive the connection The device allows for longitudinal, lateral, and rotational movement of the components. The first stop is used for longitudinal bridge-direction limiting, the second stop for lateral bridge-direction limiting, and the third stop for vertical limiting. The effective combination of limiting functions allows the damper to continue to play its role in shock absorption and energy dissipation. This device integrates not only energy dissipation in three directions but also limiting functions in three directions through a single device. It is easy to install between piers and beams in confined spaces, and the installation position is flexible. This helps to reduce the accuracy requirements of the installation direction and improve spatial adaptability. It also helps to improve energy dissipation capacity in the same space, and is especially suitable for scenarios where beam deformation is not coordinated.

[0023] 2. The installation method of the energy dissipation device described in this invention is easy to adapt to the installation of the device on the top space of the pier and the connection of dampers between different beams. The installation steps are simple, the installation reliability is good, and it is easy to install and adjust the damper. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a three-way energy dissipation device for bridges according to Embodiment 1; Figure 2 This is a top view schematic diagram of a three-way energy dissipation device for bridges according to Embodiment 1; Figure 3 This is a side view schematic diagram of a three-way energy dissipation device for bridges according to Embodiment 1; Figure 4 This is a schematic diagram of the installation of a three-way energy dissipation device for bridges, as shown in Embodiment 1. Figure 1 ; Figure 5 This is a schematic diagram of the installation of a three-way energy dissipation device for bridges, as shown in Embodiment 1. Figure 2 .

[0025] icon: 01-Pier, 02-Beam, 1-Shaft, 11-First stop, 2-Damper, 3-Connector, 41-Baffle, 42-Second stop, 421-Upper connecting beam, 422-Lower crossbar, 43-Bottom plate, 5-Spring. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0027] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0029] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0030] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0031] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0032] Example 1 like Figures 1-5 As shown, a three-dimensional energy dissipation device for bridges includes: Mounting bracket, the mounting bracket being used to connect to pier 01; Shaft 1 is rotatably connected to the mounting base. Shaft 1 is provided with a slot arranged laterally thereon. Shaft 1 can move longitudinally along the mounting base. Shaft 1 is provided with a first stop 11 for limiting the longitudinal displacement of shaft 1. The damping assembly includes two dampers 2 respectively disposed on both sides of the shaft 1. The dampers 2 have an axial structure. One end of the damper 2 is rotatably connected to the connector 3. The connector 3 is connected to the slot. The connector 3 can move longitudinally along the slot and drive the shaft 1 to rotate. The mounting base is provided with a second stop 42 for limiting the movement displacement of the connector 3 and a third stop for limiting the rotation displacement of the shaft 1 driven by the connector 3. The other end of the damper 2 is used to rotatably connect to the beam 02. In the initial installation state, the shaft 1 is arranged along the longitudinal direction of the bridge. The two dampers 2 of the same damping assembly are used to connect different sections of the same beam 02 or to connect two adjacent beams 02 respectively. The axial direction of the damper 2 is at an acute angle to the axial direction of the shaft 1 in both the vertical and horizontal directions.

[0033] Specifically, in this embodiment, the mounting base includes a base plate 43, on which two spaced-apart baffles 41 are provided. The shaft 1 passes through the two baffles 41. The cross-sectional shape of the shaft 1 is circular. The first stop 11 is a thickened section located in the middle of the shaft 1. The thickened section can be a sleeve component or a part integrally formed with the shaft 1. The structure, thickness, and length of the thickened section are designed according to actual needs. A slot is provided through the thickened section. There is an upper connecting beam 421 and a lower crossbar 422 on each side of the shaft 1. The two ends of the upper connecting beam 421 are respectively connected to the two baffles 41. The lower crossbar 422 is provided on the base plate 43. The base plate 43 with the lower crossbar 422 and the base plate 43 with the baffles 41 can be a single piece or a single piece of material. Figure 1The segmented components shown can be selected according to the specific installation and processing methods. The cross-sectional shape of the upper connecting beam 421 is not limited; in this embodiment, a rectangular cross-section is used. The lower crossbar 422 is a strip-shaped stop block, and the cross-section of the lower crossbar 422 is similar to a right-angled trapezoid, with the right-angled side facing outward and the inward side forming an arc surface suitable for the matching cylindrical component. A buffer layer can be set on the arc surface to prevent damage from impact. The connecting component 3 includes a detachably connectable stop block and a columnar component, such as... Figure 2 As shown, the damper 2 is connected to the stop block, and the columnar member is used to extend into the slot. The columnar members on both sides of the shaft 1 can be connected to each other. The height of the stop block is greater than the distance between the upper connecting beam 421 and the lower crossbar 422, thereby forming vertical and lateral limits. The stop block moves close to the shaft 1 and is limited when it abuts against the outside of the second stop 42. The stop block moves upward or downward, causing the shaft 1 to rotate until the columnar member abuts against the upper connecting beam 421 or the lower crossbar 422 and is limited. The stop block and the columnar member can also be provided with a buffer layer. The stop block and the columnar member can be connected by means of threads, which is convenient for assembly and maintenance and replacement.

[0034] This embodiment includes two damping components, but it can also include one, three, four, etc., depending on actual needs. Each damping component has two dampers 2, which are viscous dampers. One end of the damper 2 is connected to the outside of the stop block through a chain link structure. All dampers 2 located on the same side of the shaft 1 are connected to the same stop block. The columnar member is rotatably connected to the slot. The other end of the damper 2 is also connected to the mounting plate through a chain link structure to facilitate connection with the embedded plate of the beam 02. The two dampers 2 on the same side are symmetrically arranged.

[0035] A spring 5 is provided on the shaft 1 between the baffle 41 and the first stop 11. The two ends of the spring 5 are connected to the baffle 41 and the first stop 11 respectively. When the shaft 1 moves toward the baffle 41 on one side, the spring 5 on that side is compressed and the spring 5 on the other side is stretched. This can not only play a buffering role, but also provide a restoring force for the shaft 1. The spring 5 can also be arranged in other ways.

[0036] 4 dampers 2 can be in the form of Figure 2 The four dampers are arranged symmetrically in the center, or can be arranged according to actual needs. Each damper is an independent component, which provides good flexibility in spatial arrangement.

[0037] Installation status as follows Figures 4-5 As shown, this device can be installed between two support pads, unlike combined three-dimensional energy dissipation structures which are typically at least partially located in more open spaces such as the sides of the beam. The dampers 2 facing the front and rear sides of axis 1 are respectively connected to different sections of beam 02 (for ease of demonstration, only a part of the continuous beam is shown). The pier 01 can also support two adjacent spans of the beam, that is, the dampers 2 facing the front and rear sides of axis 1 are respectively connected to the two beams 02.

[0038] In some alternative embodiments, the mounting base may also include components such as a cover plate for dust protection and other requirements.

[0039] In some alternative embodiments, the viscous damper can be replaced with an eddy current damper.

[0040] In some alternative embodiments, the damper 2 can be a tenon with spherical tenons at both ends, which are rotatably connected to the connector 3.

[0041] In some alternative embodiments, shaft 1 is replaced by a transverse bridge configuration, where dampers 2 on both sides of shaft 1 are connected to different beams 02.

[0042] In some alternative embodiments, the rotating contact surface between the column and shaft 1 is provided with a friction energy dissipation plate.

[0043] This invention discloses a three-dimensional energy dissipation device for bridges. Because the damper's axial direction forms an acute angle with the axis of the shaft in both the vertical and horizontal directions, and both ends of the damper are omnidirectionally rotatable, it effectively reduces vibration and dissipates energy from relative displacement deformation in any direction between the pier and beam—that is, longitudinal, transverse, or vertical. It also coordinates situations where the spatial deformation of the beam is inconsistent at different locations. The free rotation design at both ends of the damper prevents self-torsional failure and allows it to transmit axial force only. The axial force of the damper drives the longitudinal, transverse, and rotational movement of the connecting parts. The first stop limits movement in the longitudinal direction, the second stop limits movement in the transverse direction, and the third stop limits movement in the vertical direction. This effective combination of limiting functions allows the damper to continue its vibration reduction and energy dissipation function. This device integrates not only three-dimensional energy dissipation but also three-dimensional limiting functions into a single unit. It is easy to install between piers and beams in confined spaces, offering flexible installation positions. This reduces the precision requirements for installation direction and improves spatial adaptability, increasing energy dissipation capacity within the same space. It is particularly suitable for scenarios where the deformation of the beam at the pier top is inconsistent.

[0044] Example 2 A method for installing an energy-dissipating device, applied to a three-way energy-dissipating device for a bridge as described in Example 1, includes the following steps: S1. Temporarily support shaft 1 with connector 3 on pier 01; S2. Install a baffle 41 on one side of the shaft 1, and then install a second stop 42 and a baffle 41 on the other side. S3. Install the damping components. First, install one end of the damper 2 and the connector 3, then connect the beam 02 to complete the installation.

[0045] During the construction of pier 01, the pre-embedded parts were first embedded in the top of the pier; during the construction of the main beam, the pre-embedded parts were also embedded in the bottom of beam 02, so as to ensure that the device can be connected to the pier and beam later.

[0046] The assembly of connector 3 and shaft 1 can be achieved by first passing the columnar part through shaft 1, and then connecting stop blocks at both ends of the columnar part.

[0047] The bottom plate 43 with the lower crossbar 422 is installed on the pier top through the pier top embedded part.

[0048] Afterwards, the shaft 1 with connector 3 is hoisted to the top of the pier for temporary support, and spring 5 is fitted and connected to the thickened section.

[0049] Install a baffle 41 on one side of shaft 1 and connect the corresponding spring 5 to it. Then install the connecting beam 421 and the baffle 41 on the other side, and connect the spring 5 on the other side to the corresponding baffle 41.

[0050] Install four dampers 2. First, connect the viscous damper to one end of the connector 3 for temporary fixation and position the elevation. Then, connect the other end to the embedded part of the main beam through the connecting plate using high-strength bolts.

[0051] The installation method of the energy dissipation device described in this invention is easy to adapt to the installation space on the top of the device and the connection of dampers between different beams. The installation steps are simple, the installation reliability is good, and it is easy to install and adjust the damper.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-way energy dissipation device for bridges, characterized in that, include: Mounting bracket, the mounting bracket being used to connect to the bridge pier (01); A shaft (1) is rotatably connected to the mounting base. The shaft (1) is provided with a slot arranged laterally thereon. The shaft (1) can move longitudinally along the mounting base. The shaft (1) is provided with a first stop (11) for limiting the longitudinal displacement of the shaft (1). The damping assembly includes two dampers (2) respectively disposed on both sides of the shaft (1). The dampers (2) are axial in structure. One end of the damper (2) is rotatably connected to the connector (3). The connector (3) is connected to the slot. The connector (3) can move longitudinally along the slot and drive the shaft (1) to rotate. The mounting base is provided with a second stop (42) for limiting the movement displacement of the connector (3) and a third stop for limiting the rotation displacement of the shaft (1) driven by the connector (3). The other end of the damper (2) is used to rotatably connect the beam (02). In the initial installation state, the shaft (1) is arranged along the longitudinal direction of the bridge. The two dampers (2) of the same damping assembly are used to connect different sections of the same beam (02) or to connect two adjacent beams (02) respectively. The axial direction of the damper (2) is at an acute angle to the axial direction of the shaft (11) in both the vertical and horizontal directions.

2. The three-way energy dissipation device for bridges according to claim 1, characterized in that, The first stop (11) is a thickened section located in the middle of the shaft (1), the slot is provided through the thickened section, the connector (3) includes a detachably connected stop block and a columnar member, the damper (2) is connected to the stop block, the columnar member is used to extend into the slot, and the columnar members on both sides of the shaft (1) are connected to each other.

3. A three-way energy dissipation device for bridges according to claim 2, characterized in that, The mounting base includes a base plate (43), on which two baffles (41) are provided. The shaft (1) passes through the baffles (41), and a second stop (42) is provided between the two baffles (41).

4. A three-way energy dissipation device for bridges according to claim 3, characterized in that, The second stop (42) includes an upper connecting beam (421) and a lower crossbar (422). The two ends of the upper connecting beam (421) are respectively connected to the two baffles (41). The lower crossbar (422) is disposed on the bottom plate (43). The column-shaped member is disposed between the upper connecting beam (421) and the lower crossbar (422). The upper connecting beam (421) and the lower crossbar (422) form the third stop.

5. A three-way energy dissipation device for bridges according to claim 2, characterized in that, If the damper (2) is a viscous damper or an eddy current damper, both ends of the damper (2) are connected to the connector (3) and the beam (02) through a chain link structure, and the column is rotatably connected to the shaft (1); if the damper (2) is a tenon, both ends of the tenon are spherical tenons.

6. A three-way energy dissipation device for bridges according to claim 5, characterized in that, The rotating contact surface between the columnar member and the shaft (1) is provided with a friction energy dissipation plate.

7. A three-way energy dissipation device for bridges according to any one of claims 3-6, characterized in that, It also includes a spring (5) for driving the shaft (1) to return to its longitudinal position.

8. A three-way energy dissipation device for bridges according to claim 7, characterized in that, There are two damping components, which are arranged symmetrically.

9. A three-way energy dissipation device for bridges according to claim 8, characterized in that, The shaft (1) is replaced with one that is set along the transverse bridge direction.

10. A method for installing an energy-consuming device, characterized in that, The application of a three-dimensional energy dissipation device for a bridge as described in any one of claims 3-9 includes the following steps: S1. Temporarily support the shaft (1) with connector (3) on the pier (01); S2. Install a baffle (41) on one side of the shaft (1), and then install a second stop (42) and a baffle (41) on the other side. S3. Install the damping components. First, install one end of the damper (2) and the connector (3), then connect the beam (02) to complete the installation.

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