CN113863128A

CN113863128A - Multidirectional energy dissipation composite damping support for large-span bridge

Info

Publication number: CN113863128A
Application number: CN202111180103.7A
Authority: CN
Inventors: 王旭; 张国良; 高曾勇
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2021-12-31

Abstract

The invention relates to a multidirectional energy-consumption composite damping support for a large-span bridge, wherein a same supporting damping pad is fixedly connected between an upper seat plate and a lower seat plate, two first rubber damping blocks are symmetrically placed on the outer wall of the top of a supporting box body on the top of the lower seat plate, a plurality of side faces of the two first rubber damping blocks are respectively contacted with the peripheral inner walls of the supporting damping pad, the top of the lower seat plate is fixedly connected with a second rubber damping block positioned in the supporting box body, the top of the supporting box body is provided with a first moving hole positioned between the two first rubber damping blocks, the bottom of the upper seat plate penetrates through the bottom of the moving block of the first moving hole and extends into the supporting box body, and is fixedly connected with a movable plate, the top of the movable plate is symmetrically provided with two groups of transverse damping mechanisms, and the bottom of the movable plate is provided with a vertical damping mechanism; the problem of current bridge damping bearing do not combine together the vertical shock attenuation of bridge and horizontal shock attenuation, the vertical horizontal two-way complementary shock attenuation that can't realize of bridge, the whole shock attenuation effect of bridge is not good is solved.

Description

Multidirectional energy dissipation composite damping support for large-span bridge

Technical Field

The invention belongs to the technical field of bridge damping, and relates to a multidirectional energy-consuming composite damping support for a large-span bridge.

Background

The first mode is that vertical earthquake force enables the bridge to bump up and down, and when the earthquake force is large, the bottom layer support can increase large dynamic load instantly, so that the bridge is damaged; the second mode is that the transverse earthquake force makes the bridge generate horizontal swing, which is equivalent to applying repeated action force in the horizontal direction to the bridge to cause the bridge to incline and damage.

The existing damping support for bridge construction mainly aims at protecting structural vibration generated by vertical seismic force, cannot effectively combine vertical damping with transverse damping, neglects damage generated by transverse seismic force when preventing vertical seismic force, when the damping effect is required to be set in the horizontal direction and the vertical direction, the prior art can only realize the damping effect in the corresponding direction through the damping mechanisms in the respective directions, and cannot maximally utilize the damping effect, that is, how to enable the transverse damping mechanism to act simultaneously when vertical damping is carried out or the vertical damping mechanism to act simultaneously when transverse damping is carried out to realize the effect of bidirectional complementary damping so as to improve the overall damping effect of the bridge, therefore, a multidirectional energy-consuming composite damping support for a large-span bridge is provided, and is used for solving the problems.

Disclosure of Invention

In view of the above, the invention provides a multidirectional energy-dissipation composite damping support for a large-span bridge, which aims to solve the problems that the conventional bridge damping support does not combine the vertical damping and the horizontal damping of the bridge, the vertical and horizontal damping of the bridge cannot realize bidirectional complementary damping, and the overall damping effect of the bridge is poor.

In order to achieve the purpose, the invention provides the following technical scheme:

a multidirectional energy-consumption composite damping support for a large-span bridge comprises an upper seat plate and a lower seat plate, wherein the same supporting damping pad is fixedly connected between the upper seat plate and the lower seat plate, the supporting damping pad is a rectangular supporting frame formed by mutually fixing and overlapping a plurality of rubber layers and a plurality of steel plate layers, the top of the lower seat plate is fixedly connected with a supporting box body, the upper seat plate, the lower seat plate and the supporting box body are made of the same hard steel material, the supporting box body is positioned on the inner side of the supporting damping pad, the bottom of the supporting box body is provided with an opening, two first rubber damping blocks are symmetrically arranged on the outer wall of the top of the supporting box body, the tops of the two first rubber damping blocks are contacted with the bottom of the upper seat plate, a plurality of side surfaces of the two first rubber damping blocks are respectively contacted with the peripheral inner walls of the supporting damping pad, the top of the lower seat plate is fixedly connected with second rubber damping blocks positioned in the supporting box body, a first moving hole positioned between the two first rubber damping blocks is formed in the top of the supporting box body, the bottom fixedly connected with of going up the bedplate runs through the movable block in first removal hole, and the one side that the movable block was kept away from each other contacts with the one side that two first rubber snubber blocks are close to each other respectively, the bottom of movable block extends to the inside and the fixedly connected with fly leaf of supporting box, the top symmetry of fly leaf is equipped with two sets of horizontal damper, the bottom of fly leaf is equipped with vertical damper, the top symmetry of fly leaf is equipped with two sets ofly and corresponds the first promotion subassembly of horizontal damper transmission complex, the bottom symmetry of fly leaf is equipped with two sets of all with vertical damper transmission complex second promotion subassembly.

Further, horizontal damper includes the first slide of fixed connection at the fly leaf top, and the top of first slide is touched with the top inner wall of supporting box mutually, through a plurality of connecting rod fixed connection between first slide and the movable block, one side sliding connection who keeps away from the connecting rod of first slide has the second slide, a plurality of first springs of one side fixedly connected with of first slide are kept away from to the second slide, the same L type slide of the other end fixedly connected with of a plurality of first springs, and one side that first spring was kept away from to L type slide is touched with one side inner wall of supporting box mutually, second slide and L type slide all with the inner wall sliding connection of supporting box.

Furthermore, one side of the first sliding plate close to the second sliding plate is symmetrically provided with two first T-shaped sliding blocks, and one side of the second sliding plate close to the first sliding plate is symmetrically provided with two first T-shaped sliding grooves in sliding connection with the corresponding first T-shaped sliding blocks.

Further, first promotion subassembly includes the last riser of fixed connection in fly leaf top one side, the second removal hole has been seted up at the top of L type slide, and the top of going up the riser runs through the second and removes the hole and the first push pedal of fixedly connected with, the length of first push pedal is greater than the length that the second removed the hole, the interior limit of L type slide is equipped with the inclined plane with first push pedal contact complex, one side that the top of L type slide is close to the inclined plane is equipped with the embedded groove with first push pedal looks adaptation, and the embedded groove is in same level and communicates mutually with the second removal hole with first push pedal.

Further, vertical damper includes the third slide of sliding connection in the fly leaf bottom, the both sides of third slide and the inner wall sliding connection of supporting box, the bottom fixedly connected with backup pad of third slide, the first supporting block of bottom fixedly connected with of backup pad, and the bottom of first supporting block contacts with the top of second rubber snubber block.

Further, vertical damper still includes that the slip cap establishes the U type slide in the backup pad outside, and the bottom both sides of U type slide all run through the bottom of second rubber snubber block and contact with the top of bedplate down, the both sides of U type slide all with the inner wall sliding connection of supporting box, a plurality of second springs of top fixedly connected with of U type slide, the top of a plurality of second springs all with the bottom fixed connection of third slide.

Furthermore, the bottom symmetry of fly leaf is equipped with two second T type sliders, and the top symmetry of third slide is equipped with two and corresponds second T type slider sliding connection's second T type spout.

Further, the second pushing assembly comprises a lower vertical plate fixedly connected to one side of the bottom of the movable plate, a supporting plate in transmission fit with the U-shaped sliding plate is fixedly connected to the bottom of one side of the lower vertical plate, a second supporting block is fixedly connected to the bottom of the lower vertical plate, and the bottom of the second supporting block is in contact with the top of the second rubber shock absorption block.

Further, a third moving hole is formed in one side, away from each other, of the U-shaped sliding plate, one side, away from the lower vertical plate, of the supporting plate runs through the third moving hole and extends to the inner side of the U-shaped sliding plate, the second pushing plate is fixedly connected with the third moving hole, two trapezoidal grooves are symmetrically formed in the inner wall of the top of the U-shaped sliding plate, and the top of the second pushing plate is in contact with the inner wall of the top of each trapezoidal groove.

The invention has the beneficial effects that:

1. the multidirectional energy-consuming composite damping support for the long-span bridge, disclosed by the invention, can achieve a primary damping effect by extruding the supporting damping pad and the first rubber damping block through the vertical movement of the upper base plate, meanwhile, the upper seat plate drives the movable block to move downwards, so that the first supporting block can extrude the second rubber shock absorption block to absorb shock, the third sliding plate moves downwards to extrude the second spring to buffer again, so as to achieve the shock absorption effect of the bridge, the movable plate drives the second supporting block to extrude the second rubber damping block to damp when moving downwards, and simultaneously drives the first push plate to be in extrusion contact with the inclined surface, so as to drive the L-shaped sliding plate to move transversely and extrude the first spring, with this realization can reach the effect of mutually supporting through horizontal damper when the bridge receives vertical seismic force to it improves the vertical shock-absorbing capacity of bridge, improves the whole shock attenuation effect of bridge.

2. The invention discloses a multidirectional energy-consumption composite damping support for a large-span bridge, which can realize a primary damping effect by driving a movable block to transversely move in a first moving hole and extrude a first rubber damping block through the transverse movement of an upper seat plate, and simultaneously can drive a first sliding plate to transversely push one second sliding plate through the movable block, the pushed second sliding plate can extrude the corresponding first spring to achieve the damping effect, and the movable plate can also drive a second push plate to transversely move and abut against the inner wall of a trapezoidal groove, so that a U-shaped sliding plate can be driven to upwardly move and extrude the second spring no matter the second push plate moves leftwards or rightwards, further damping effect is achieved, the effect of mutual matching can be achieved through a vertical damping mechanism when transverse earthquake force is applied, and the transverse damping capacity of the bridge is improved, the whole shock attenuation effect of bridge is improved.

3. The multidirectional energy-consumption composite damping support for the large-span bridge, disclosed by the invention, is compact in structure, can play a vertical damping effect on the bridge through the vertical damping mechanism, can play a transverse damping effect on the bridge through the transverse damping mechanism, can realize complementary damping through the transverse damping mechanism when the bridge is subjected to vertical seismic force, and can realize complementary damping through the vertical damping mechanism when the bridge is subjected to transverse seismic force, so that the damping performance of the vertical damping and the transverse damping of the bridge can be greatly improved, and the overall safety of the bridge is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of the overall structure of a multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 2 is a perspective view of the present invention taken away from the upper seat plate of FIG. 1;

FIG. 3 is a perspective view of the cross-sectional structure of FIG. 2 in accordance with the present invention;

FIG. 4 is a front sectional view of the overall structure of the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 5 is a perspective view of the internal structure of a support box in the multi-directional energy-consuming composite damping support for a long-span bridge according to the present invention;

FIG. 6 is a perspective view of a connection structure of a movable block and a movable plate in the multi-directional energy-consuming composite damping support for a long-span bridge according to the present invention;

FIG. 7 is a perspective view of a first sliding plate structure in the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 8 is a perspective view of a second sliding plate structure in the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 9 is a perspective view of an L-shaped sliding plate structure in the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 10 is a bottom perspective view of the overall structure of the movable plate of the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 11 is a perspective view of a third slide plate structure in the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention;

FIG. 12 is a perspective view of a U-shaped sliding plate structure in the multi-directional energy-dissipating composite damping support for a long-span bridge according to the present invention.

Reference numerals: 1. an upper seat plate; 2. a lower seat plate; 3. supporting the shock pad; 4. supporting the box body; 5. a first rubber damper block; 6. a first moving hole; 7. a movable block; 8. a movable plate; 81. a second T-shaped slider; 9. a connecting rod; 10. a first slide plate; 101. a first T-shaped slider; 11. a second slide plate; 111. a first T-shaped chute; 12. an L-shaped slide plate; 121. a second moving hole; 122. a groove is embedded; 123. a bevel; 13. a first spring; 14. an upper vertical plate; 15. a first push plate; 16. a second rubber damper block; 17. a third slide plate; 171. a second T-shaped chute; 18. a support plate; 19. a first support block; 20. a U-shaped slide plate; 201. a third moving hole; 202. a trapezoidal groove; 21. a second spring; 22. a lower vertical plate; 23. a support plate; 24. a second push plate; 25. a second support block.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Example one

As shown in figures 1-12, a multidirectional energy-consuming composite damping support for a large-span bridge comprises an upper seat plate 1 and a lower seat plate 2 which are cuboid, wherein the periphery of the upper seat plate 1 and the lower seat plate 2 is fixedly connected with a same supporting damping pad 3 matched with the upper seat plate 1 and the lower seat plate 2, the supporting damping pad 3 is a rectangular supporting frame formed by mutually fixing and overlapping a plurality of rubber layers and a plurality of steel plate layers, the top of the lower seat plate 2 is fixedly connected with a supporting box body 4 positioned at the inner side of the rectangular supporting frame, the upper seat plate 1, the lower seat plate 2 and the supporting box body 4 are made of the same hard steel material, the supporting box body 4 is positioned at the inner side of the supporting damping pad 3, the bottom of the supporting box body 4 is provided with an opening, two first rubber damping blocks 5 are symmetrically arranged on the outer wall of the top of the supporting box body 4, the tops of the two first rubber damping blocks 5 are all contacted with the bottom of the upper seat plate 1, a plurality of side faces of the two first rubber damping blocks 5 are respectively contacted with the inner wall of the periphery of the supporting damping pad 3, the top of the lower seat plate 2 is fixedly connected with a second rubber shock absorption block 16 positioned inside the support box body 4.

The top of the supporting box body 4 is provided with a first moving hole 6 positioned between two first rubber shock absorption blocks 5, the bottom of the upper seat plate 1 is fixedly connected with a movable block 7 penetrating through the first moving hole 6, one side of the movable block 7, which is far away from each other, is respectively contacted with one side of the two first rubber shock absorption blocks 5, which is close to each other, the bottom of the movable block 7 extends into the supporting box body 4 and is fixedly connected with a movable plate 8, the top of the movable plate 8 is symmetrically provided with two groups of transverse shock absorption mechanisms, the bottom of the movable plate 8 is symmetrically provided with two second T-shaped sliding blocks 81, the top of the third sliding plate 17 is symmetrically provided with two second T-shaped sliding grooves 171 which are in sliding connection with the corresponding second T-shaped sliding blocks 81, through the sliding fit of the second T-shaped sliding blocks 81 and the second T-shaped sliding grooves 171, the first sliding plate 10 can not only vertically push the third sliding plate 17 back and forth, but also can transversely slide in the third sliding plate 17, the bottom of fly leaf 8 is equipped with vertical damper, can play vertical shock attenuation effect to the bridge through vertical damper, can play horizontal shock attenuation effect to the bridge through horizontal damper to this can realize the multidirectional shock attenuation effect to the bridge, has improved the practicality and the security of bridge greatly.

In the invention, the transverse shock absorption mechanism comprises a first sliding plate 10 fixedly connected to the top of a movable plate 8, the top of the first sliding plate 10 is contacted with the inner wall of the top of a supporting box body 4, one side of the first sliding plate 10, which is close to a second sliding plate 11, is symmetrically provided with two first T-shaped sliding blocks 101, one side of the second sliding plate 11, which is close to the first sliding plate 10, is symmetrically provided with two first T-shaped sliding chutes 111 which are slidably connected with the corresponding first T-shaped sliding blocks 101, through the sliding fit of the first T-shaped sliding blocks 101 and the first T-shaped sliding chutes 111, the first sliding plate 10 not only can transversely push the second sliding plate 11 back and forth, but also can vertically slide in the second sliding plate 11, the first sliding plate 10 is fixedly connected with the movable block 7 through a plurality of connecting rods 9, one side of the first sliding plate 10, which is far from the connecting rods 9, is slidably connected with the second sliding plate 11, one side of the second sliding plate 11, which is far from the first sliding plate 10, is fixedly connected with a plurality of first springs 13, the other end fixedly connected with same L type slide 12 of a plurality of first springs 13, and one side that L type slide 12 kept away from first spring 13 touches mutually with one side inner wall of supporting box 4, second slide 11 and L type slide 12 all with the inner wall sliding connection of supporting box 4, when last bedplate 1 received horizontal seismic force, drive 8 horizontal migration of fly leaf through movable block 7, and then drive first slide 10 horizontal migration and promote second slide 11 extrusion first spring 13, with this effect of playing horizontal absorbing, movable block 7 also can further play the cushioning effect with 5 extrusion contact of first rubber snubber block simultaneously.

According to the invention, the vertical damping mechanism comprises a third sliding plate 17 connected to the bottom of the movable plate 8 in a sliding manner, two sides of the third sliding plate 17 are connected to the inner wall of the supporting box body 4 in a sliding manner, the bottom of the third sliding plate 17 is fixedly connected with a supporting plate 18, the bottom of the supporting plate 18 is fixedly connected with a first supporting block 19, the bottom of the first supporting block 19 is in contact with the top of a second rubber damping block 16, when the upper seat plate 1 is subjected to vertical earthquake force, preliminary damping is performed by extrusion on the supporting damping pad 3 and the first rubber damping block 5, meanwhile, the movable block 7 drives the movable plate 8 to move downwards, and then the third sliding plate 17 drives the supporting plate 18 to move downwards, so that the first supporting block 19 extrudes the second rubber damping block 16, and further damping effect is realized.

According to the invention, the vertical shock absorption mechanism further comprises a U-shaped sliding plate 20 which is sleeved outside the supporting plate 18 in a sliding manner, two sides of the bottom of the U-shaped sliding plate 20 penetrate through the bottom of the second rubber shock absorption block 16 and are in contact with the top of the lower seat plate 2, two sides of the U-shaped sliding plate 20 are in sliding connection with the inner wall of the supporting box body 4, a plurality of second springs 21 are fixedly connected to the top of the U-shaped sliding plate 20, the top ends of the plurality of second springs 21 are fixedly connected with the bottom of the third sliding plate 17, when the movable plate 8 drives the third sliding plate 17 to move downwards, the second springs 21 can play a shock absorption role again, and the vertical supporting and shock absorption capacity is improved.

Example two

This embodiment is a further improvement of the previous embodiment: as shown in fig. 1-12, a multi-directional energy-consuming composite damping support for a large-span bridge comprises an upper seat plate 1 and a lower seat plate 2, wherein the same supporting damping pad 3 is fixedly connected between the upper seat plate 1 and the lower seat plate 2, the supporting damping pad 3 is a rectangular supporting frame formed by mutually fixing and overlapping a plurality of rubber layers and a plurality of steel plate layers, the top of the lower seat plate 2 is fixedly connected with a supporting box body 4, the upper seat plate 1, the lower seat plate 2 and the supporting box body 4 are all made of the same hard steel material, and the supporting box 4 is located the inboard and the bottom that support the shock pad 3 and sets up for the opening, and two first rubber snubber blocks 5 have been placed to the top outer wall symmetry of supporting box 4, and the top of two first rubber snubber blocks 5 all contacts with the bottom of last bedplate 1 mutually, and a plurality of sides of two first rubber snubber blocks 5 contact with the inner wall all around that supports shock pad 3 respectively, and the top fixedly connected with of lower bedplate 2 is located the inside second rubber snubber block 16 of supporting box 4.

The top of the supporting box body 4 is provided with a first moving hole 6 positioned between two first rubber shock absorption blocks 5, the bottom of the upper seat plate 1 is fixedly connected with a movable block 7 penetrating through the first moving hole 6, one side of the movable block 7, which is far away from each other, is respectively contacted with one side, which is close to each other, of the two first rubber shock absorption blocks 5, the bottom of the movable block 7 extends into the supporting box body 4 and is fixedly connected with a movable plate 8, the top of the movable plate 8 is symmetrically provided with two groups of transverse shock absorption mechanisms, the bottom of the movable plate 8 is provided with a vertical shock absorption mechanism, the bottom of the movable plate 8 is symmetrically provided with two second T-shaped sliding blocks 81, the top of the third sliding plate 17 is symmetrically provided with two second T-shaped sliding grooves 171 which are in sliding connection with the corresponding second T-shaped sliding blocks 81, through the sliding fit of the second T-shaped sliding blocks 81 and the second T-shaped sliding grooves 171, the first sliding plate 10 can not only vertically push the third sliding plate 17 back and forth, the movable plate 8 can also transversely slide in the third sliding plate 17, the top of the movable plate 8 is symmetrically provided with two sets of first pushing assemblies in transmission fit with corresponding transverse damping mechanisms, the bottom of the movable plate 8 is symmetrically provided with two sets of second pushing assemblies in transmission fit with the vertical damping mechanisms, the vertical damping effect can be achieved on the bridge through the vertical damping mechanisms, the transverse damping effect can be achieved on the bridge through the transverse damping mechanisms, complementary damping can be achieved through the transverse damping mechanisms when the bridge receives vertical seismic force, complementary damping can also be achieved through the vertical damping mechanisms when the bridge receives transverse seismic force, therefore, the vertical damping performance and the transverse damping performance of the bridge can be greatly improved, and the overall safety of the bridge is improved.

In the invention, the first pushing component comprises an upper vertical plate 14 fixedly connected to one side of the top of the movable plate 8, the top of the L-shaped sliding plate 12 is provided with a second moving hole 121, the top of the upper vertical plate 14 penetrates through the second moving hole 121 and is fixedly connected with a first push plate 15, the length of the first push plate 15 is greater than that of the second moving hole 121, the inner edge of the L-shaped sliding plate 12 is provided with an inclined surface 123 in contact fit with the first push plate 15, one side of the top of the L-shaped sliding plate 12, which is close to the inclined surface 123, is provided with an embedded groove 122 matched with the first push plate 15, the embedded groove 122 and the first push plate 15 are at the same horizontal height and communicated with the second moving hole 121, when the movable plate 8 moves transversely, the upper vertical plate 14 can be driven to move back and forth in the second moving hole 121, when the movable plate 8 moves vertically, the L-shaped sliding plate 12 can be driven to move transversely and extrude the first spring 13 through the contact fit of the first push plate 15 and the inclined surface 123, therefore, the bidirectional complementary shock absorption is realized by matching the transverse shock absorption mechanism during vertical shock absorption.

According to the invention, the vertical shock absorption mechanism comprises a third sliding plate 17 which is slidably connected to the bottom of the movable plate 8, two sides of the third sliding plate 17 are slidably connected with the inner wall of the support box body 4, a support plate 18 is fixedly connected to the bottom of the third sliding plate 17, a first support block 19 is fixedly connected to the bottom of the support plate 18, the bottom of the first support block 19 is in contact with the top of a second rubber shock absorption block 16, when the upper seat plate 1 is subjected to vertical earthquake force, preliminary shock absorption is carried out by squeezing the support shock absorption pad 3 and the first rubber shock absorption block 5, meanwhile, the movable block 7 drives the movable plate 8 to move downwards, the third sliding plate 17 drives the support plate 18 to move downwards, so that the first support block 19 squeezes the second rubber shock absorption block 16 to realize further shock absorption effect, the vertical shock absorption mechanism further comprises a U-shaped sliding plate 20 which is slidably sleeved on the outer side of the support plate 18, two sides of the bottom of the U-shaped sliding plate 20 penetrate through the bottom of the second rubber shock absorption block 16 and are in contact with the top of the lower seat plate 2 The both sides of U type slide 20 all with the inner wall sliding connection of supporting box 4, a plurality of second springs 21 of the top fixedly connected with of U type slide 20, the top of a plurality of second springs 21 all with the bottom fixed connection of third slide 17, when fly leaf 8 drives third slide 17 and moves down, can play absorbing effect once more through second spring 21, improve vertical braces and shock-absorbing capacity.

In the invention, the second pushing component comprises a lower vertical plate 22 fixedly connected to one side of the bottom of the movable plate 8, a support plate 23 in transmission fit with the U-shaped sliding plate 20 is fixedly connected to the bottom of one side of the lower vertical plate 22, a second supporting block 25 is fixedly connected to the bottom of the lower vertical plate 22, the bottom of the second supporting block 25 is in contact with the top of the second rubber shock absorption block 16, and when the movable block 7 drives the movable plate 8 to move downwards, the lower vertical plate 22 drives the second supporting block 25 to move downwards to be extruded with the second rubber shock absorption block 16, so that the supporting and shock absorption effects can be further improved.

In the invention, the sides of the U-shaped sliding plate 20 far away from each other are provided with third moving holes 201, and one side of the support plate 23 far away from the lower vertical plate 22 penetrates through the third moving hole 201 to extend to the inner side of the U-shaped sliding plate 20 and is fixedly connected with a second push plate 24, two trapezoidal grooves 202 are symmetrically arranged on the inner wall of the top of the U-shaped sliding plate 20, the top of the second push plate 24 is contacted with the inner wall of the top of the trapezoidal groove 202, when the movable plate 8 moves back and forth transversely, the support plate 23 can be driven by the lower vertical plate 22 to move back and forth, and through the contact fit of the second push plate 24 and the trapezoidal groove 202, can drive the U-shaped sliding plate 20 to integrally move upwards and extrude the second spring 21, thereby realizing bidirectional complementary shock absorption by matching with the vertical shock absorption mechanism during transverse shock absorption, when the movable plate 8 moves downwards, the fulcrum plate 23 can be driven by the lower riser 22 to move downwards in the third moving hole 201, so that the horizontal and vertical movement of the movable plate 8 is not interfered.

The advantages of the second embodiment over the first embodiment are: through the cooperation of the first pushing assembly and the second pushing assembly, when the bridge bears a transverse earthquake force or a vertical earthquake force, the vertical damping mechanism and the transverse damping mechanism can achieve the effect of bidirectional complementary damping, the overall damping capacity is greatly improved, and the operation of the bridge is safe and reliable.

When the bridge is subjected to vertical seismic force: firstly, the upper seat plate 1 is pressed to move downwards, a primary damping effect can be achieved by pressing the supporting damping pad 3 and the first rubber damping block 5, meanwhile, the upper seat plate 1 drives the movable block 7 to move downwards and can drive the movable plate 8 to move downwards, at the moment, the first sliding plate 10 vertically slides in the second sliding plate 11, the movable plate 8 drives the supporting plate 18 to move downwards through the third sliding plate 17, the first supporting block 19 presses the second rubber damping block 16 for damping, meanwhile, the third sliding plate 17 moves downwards and presses the second spring 21 for buffering again, the damping effect is achieved, when the movable plate 8 moves downwards, the supporting plate 23 is driven to slide downwards in the third moving hole 201 through the lower vertical plate 22, the second supporting block 25 presses the second rubber damping block 16 for damping, at the same time, the upper vertical plate 14 moves downwards in the second moving hole 121 and drives the first push plate 15 to be pressed to be in contact with the inclined plane 123, the L-shaped sliding plate 12 can be driven to move transversely and extrude the first spring 13, so that the effect of mutual matching can be achieved through the transverse damping mechanism when vertical earthquake force is applied, and the vertical damping capacity is improved;

when the bridge is subjected to transverse seismic force: firstly, the upper seat plate 1 is driven to transversely move, a certain transverse displacement damping effect can be achieved by supporting the damping pad 3, meanwhile, the upper seat plate 1 drives the movable block 7 to transversely move in the first moving hole 6 and extrude the first rubber damping block 5, a preliminary damping effect can be achieved, the movable block 7 can drive the movable plate 8 to transversely slide on the third sliding plate 17, meanwhile, one second sliding plate 11 can be transversely pushed through the first sliding plate 10, the other second sliding plate 11 can be transversely pulled, the pushed second sliding plate 11 can extrude the corresponding first spring 13 to achieve a buffering damping effect, the pulled second sliding plate 11 can drive the L-shaped sliding plate 12 to transversely slide through the corresponding first spring 13, the movable plate 8 can drive the upper vertical plate 14 to transversely move in the second moving hole 121 when moving, meanwhile, the movable plate 8 can also drive the lower vertical plate 22 to transversely move, the support plate 23 drives the second push plate 24 to move transversely and abut against the inner wall of the trapezoidal groove 202, so that the U-shaped sliding plate 20 can be driven to move upwards and extrude the second spring 21 no matter the second push plate 24 moves leftwards or rightwards, further buffering and damping effects are achieved, the effect of mutual matching can be achieved through the vertical damping mechanism when transverse earthquake force is applied, and the transverse damping capacity is improved.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a compound shock mount of multidirectional power consumption of large-span bridge, includes bedplate (1) and lower bedplate (2), go up bedplate (1) and same support shock pad (3) of fixedly connected with between lower bedplate (2), a serial communication port, support shock pad (3) and by a plurality of rubber layer and a plurality of steel deck reciprocal anchorage stack one rectangle carriage that constitutes, the top fixedly connected with supporting box (4) of bedplate (2) down, go up bedplate (1), lower bedplate (2) and supporting box (4) are the same hard steel material, and supporting box (4) are located the inboard and the bottom that support shock pad (3) and set up for the opening, two first rubber shock absorber blocks (5) have been placed to the top outer wall symmetry of supporting box (4), the top of two first rubber shock absorber blocks (5) all contacts with the bottom of last bedplate (1), a plurality of sides of two first rubber shock absorber blocks (5) respectively with the inner wall all around of supporting shock pad (3) The top of the lower seat plate (2) is fixedly connected with a second rubber shock absorption block (16) positioned in the support box body (4), the top of the support box body (4) is provided with a first moving hole (6) positioned between the two first rubber shock absorption blocks (5), the bottom of the upper seat plate (1) is fixedly connected with a movable block (7) penetrating through the first moving hole (6), one side, away from each other, of the movable block (7) is respectively contacted with one side, close to each other, of the two first rubber shock absorption blocks (5), the bottom of the movable block (7) extends to the inside of the support box body (4) and is fixedly connected with a movable plate (8), the top of the movable plate (8) is symmetrically provided with two groups of transverse shock absorption mechanisms, the bottom of the movable plate (8) is provided with a vertical shock absorption mechanism, the top of the movable plate (8) is symmetrically provided with two groups of first pushing components which are in transmission fit with the corresponding transverse shock absorption mechanisms, two groups of second pushing assemblies which are in transmission fit with the vertical shock absorption mechanism are symmetrically arranged at the bottom of the movable plate (8).

2. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 1, wherein the transverse damping mechanism comprises a first sliding plate (10) fixedly connected to the top of the movable plate (8), the top of the first sliding plate (10) is in contact with the inner wall of the top of the support box (4), the first sliding plate (10) is fixedly connected to the movable block (7) through a plurality of connecting rods (9), a second sliding plate (11) is slidably connected to one side of the first sliding plate (10) far away from the connecting rods (9), a plurality of first springs (13) are fixedly connected to one side of the second sliding plate (11) far away from the first sliding plate (10), the other ends of the plurality of first springs (13) are fixedly connected to the same L-shaped sliding plate (12), and one side of the L-shaped sliding plate (12) far away from the first springs (13) is in contact with the inner wall of one side of the support box (4), the second sliding plate (11) and the L-shaped sliding plate (12) are both connected with the inner wall of the supporting box body (4) in a sliding way.

3. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 2, wherein two first T-shaped sliding blocks (101) are symmetrically arranged on one side of the first sliding plate (10) close to the second sliding plate (11), and two first T-shaped sliding grooves (111) which are slidably connected with the corresponding first T-shaped sliding blocks (101) are symmetrically arranged on one side of the second sliding plate (11) close to the first sliding plate (10).

4. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 2, the first pushing component comprises an upper vertical plate (14) fixedly connected to one side of the top of the movable plate (8), a second moving hole (121) is formed in the top of the L-shaped sliding plate (12), the top of the upper vertical plate (14) penetrates through the second moving hole (121) and is fixedly connected with a first push plate (15), the length of the first push plate (15) is greater than that of the second moving hole (121), an inclined plane (123) in contact fit with the first push plate (15) is arranged on the inner edge of the L-shaped sliding plate (12), an embedded groove (122) matched with the first push plate (15) is arranged on one side, close to the inclined plane (123), of the top of the L-shaped sliding plate (12), and the embedded groove (122) and the first push plate (15) are positioned at the same horizontal height and communicated with the second moving hole (121).

5. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 1, wherein the vertical damping mechanism comprises a third sliding plate (17) slidably connected to the bottom of the movable plate (8), two sides of the third sliding plate (17) are slidably connected to the inner wall of the supporting box body (4), a supporting plate (18) is fixedly connected to the bottom of the third sliding plate (17), a first supporting block (19) is fixedly connected to the bottom of the supporting plate (18), and the bottom of the first supporting block (19) is in contact with the top of the second rubber damping block (16).

6. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 5, wherein the vertical damping mechanism further comprises a U-shaped sliding plate (20) which is slidably sleeved outside the supporting plate (18), two sides of the bottom of the U-shaped sliding plate (20) penetrate through the bottom of the second rubber damping block (16) and are in contact with the top of the lower seat plate (2), two sides of the U-shaped sliding plate (20) are slidably connected with the inner wall of the supporting box body (4), a plurality of second springs (21) are fixedly connected to the top of the U-shaped sliding plate (20), and top ends of the second springs (21) are fixedly connected with the bottom of the third sliding plate (17).

7. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 5, wherein the bottom of the movable plate (8) is symmetrically provided with two second T-shaped sliding blocks (81), and the top of the third sliding plate (17) is symmetrically provided with two second T-shaped sliding grooves (171) which are slidably connected with the corresponding second T-shaped sliding blocks (81).

8. The multidirectional energy-consuming composite damping support for the large-span bridge according to claim 6, wherein the second pushing assembly comprises a lower vertical plate (22) fixedly connected to one side of the bottom of the movable plate (8), a support plate (23) in transmission fit with the U-shaped sliding plate (20) is fixedly connected to the bottom of one side of the lower vertical plate (22), a second support block (25) is fixedly connected to the bottom of the lower vertical plate (22), and the bottom of the second support block (25) is in contact with the top of the second rubber damping block (16).

9. The multidirectional energy-consuming composite shock absorption support for the large-span bridge according to claim 8, wherein the sides of the U-shaped sliding plates (20) far away from each other are provided with third moving holes (201), one sides of the support plates (23) far away from the lower risers (22) extend to the inner sides of the U-shaped sliding plates (20) through the third moving holes (201) and are fixedly connected with second push plates (24), the inner walls of the tops of the U-shaped sliding plates (20) are symmetrically provided with two trapezoidal grooves (202), and the tops of the second push plates (24) are in contact with the inner walls of the tops of the trapezoidal grooves (202).