Multidirectional vibration-absorbing type bridge seismic support

Abstract

The application belongs to the technical field of bridge anti-seismic and bridge seismic mitigation, and specifically discloses a multi-directional vibration-absorbing bridge anti-seismic support, which comprises a cover plate, a base, first bolts, second bolts, third bolts, fourth bolts, a connecting plate, a support head, T-shaped sliding blocks, high-strength springs, disc springs, limiting blocks and fixing blocks. The support head wall surface is uniformly provided with six T-shaped sliding grooves in the circumferential direction, and the T-shaped sliding blocks are matched with the T-shaped sliding grooves; the high-strength springs are uniformly installed between the T-shaped sliding blocks and the fixing blocks in the circumferential direction; the fixing blocks and the high-strength springs are fixedly connected; when the beam body is subjected to transverse vibration, the circumferentially uniformly installed high-strength springs can effectively buffer and absorb the transverse displacement and the transverse wave energy in all directions; the support head and the cavity are matched with each other in the form of inverted cones, so that the relative position of the support head and the base will not be greatly changed even in large vibration, and the stability of the overall structure of the support is effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bridge anti-seismic and bridge seismic mitigation, and particularly relates to a multi-directional vibration absorption type bridge anti-seismic support. BACKGROUND

[0002] The bridge support, as an intermediate component connecting the beam body and the pier, has an important position. The traditional bridge support is generally fixed by screws between the upper steel plate and each component and the support body, which is time-consuming and laborious. The whole support is relatively complex. The second is that the anti-displacement and anti-seismic ability is poor, and lacks limitability. When subjected to multi-directional vibration, the upper steel plate cannot tilt and move correspondingly, which easily damages the beam body. Especially during an earthquake, the beam body will be affected by the seismic wave and will occur transverse and longitudinal displacement. At this time, the stability and anti-seismic property of the support will be a test.

[0003] Through analysis of the existing technical solutions, it is found that the proposed bridge support can solve the vibration problem of the beam body to a certain extent, but the stability of the structure and the vibration absorption effect still need to be further improved.

[0004] For example, patent CN218090478 opens a fixed groove on the base, and a rubber pad is tightly fitted in the fixed groove. When the beam body vibrates, the vibration energy is absorbed by friction between them to play a role in shock absorption. This method can absorb part of the longitudinal energy, but the shock absorption effect is minimal, and it cannot offset the transverse displacement of the beam body.

[0005] For example, patent CN114427186A, although it well considers the problem that the beam body will occur transverse and longitudinal displacement during the earthquake process, the shock absorption device also has good vibration absorption effect, but the vibration absorption block is randomly placed between the fixed channels. When the earthquake intensity is large, the support will have the risk of failure at any time, and the support structure does not have good stability.

[0006] Therefore, based on the above problems, the application provides a multi-directional vibration absorption type bridge anti-seismic support. SUMMARY

[0007] The purpose of the application is to provide a multi-directional vibration absorption type bridge anti-seismic support, which solves the technical problems existing in the background art, that is, can effectively buffer the multi-directional displacement of the bridge beam body, avoid collision damage of the beam body, and at the same time can improve the stability of the support and prolong the service life of the support.

[0008] Technical solution: The application provides a multi-directional vibration absorption type bridge anti-seismic support, which comprises a cover plate, a base, a first bolt, a second bolt, a third bolt, a fourth bolt, a connecting plate, a support head, a T-shaped sliding block, a high-strength spring, a disc spring, a limiting block and a fixing block, the bottom of the cover plate is fixedly provided with a support column, the bottom of the support column is provided with a first connecting hole, the center of the connecting plate is provided with a third connecting hole which has the same diameter as the first connecting hole, the connecting plate is connected with the support column through the second bolt, the third connecting hole and the first connecting hole, the wall surface of the support head is uniformly provided with six T-shaped sliding grooves which are matched with the T-shaped sliding blocks, the limiting block is T-shaped in cross section and is matched with the T-shaped sliding grooves, the high-strength spring is uniformly arranged between the T-shaped sliding block and the fixing block in the circumferential direction, the fixing block is fixedly connected with the high-strength spring, the upper end of the base is fixedly connected with a cylindrical table, the cylindrical table is provided with a cavity, the wall surface of the cavity is uniformly provided with six mounting surfaces in the circumferential direction, the bottom of each mounting surface is provided with a sixth connecting hole, the fixing block is provided with a seventh connecting hole, and the fixing block is connected with the mounting surface through the fourth bolt, the seventh connecting hole and the sixth connecting hole, the edge of the connecting plate is uniformly provided with six second connecting holes in the circumferential direction, the edge of the top surface of the support head is uniformly provided with six fourth connecting holes in the circumferential direction, and the support head is connected with the connecting plate through the first bolt, the second connecting hole and the fourth connecting hole, the disc spring is formed by stacking four spring sheets and is fixedly arranged at the bottom position of the cavity, the limiting block is provided with a sixth connecting hole, the inner wall of the upper end surface of the support head is provided with an eighth connecting hole, and the limiting block is arranged on the upper end of the T-shaped sliding groove through the third bolt, the eighth connecting hole and the sixth connecting hole.

[0009] The support head is uniformly provided with six T-shaped sliding grooves in the circumferential direction, and the included angle between each T-shaped sliding groove is 60°.

[0010] The T-shaped sliding block slides up and down in the T-shaped sliding groove.

[0011] The support head and the cavity are both inverted conical and have the same inclination angle, and the inclination angle is less than 90°.

[0012] The included angle between each mounting surface of the cavity wall surface is 60°.

[0013] The mounting surface is an inclined plane, the inclination angle of the mounting surface is the same as that of the cavity, and the mounting surface is parallel to the bottom surface of the T-shaped sliding groove.

[0014] The four corners of the cover plate are provided with cover plate connecting holes, and the cover plate is connected with the bottom surface of the beam body through bolts; the four corners of the base are provided with base connecting holes, and the base is connected with the top surface of the cover beam through bolts.

[0015] The included angle between each second connecting hole is 60°.

[0016] In this technical solution, the included angle between each of the fourth connecting holes is 60°.

[0017] In this technical solution, a holding groove is formed at the center of the top surface of the support head; wherein, the holding groove is used in conjunction with the head of the second bolt.

[0018] Compared with the prior art, the beneficial effects of the multi-directional vibration-absorbing bridge seismic bearing of the present invention are as follows: 1. Six T-shaped grooves are evenly opened circumferentially on the support head wall to cooperate with the T-shaped slider. High-strength springs are evenly installed circumferentially between the T-shaped slider and the fixed block. The fixed block and the high-strength spring are fixedly connected. When the beam vibrates laterally, the circumferentially installed high-strength springs can play a good role in buffering and damping the lateral displacement, effectively absorbing the transverse wave energy in all directions; 2. When the beam vibrates longitudinally, the support head will move downward. The disc spring fixedly installed at the bottom of the cavity will be compressed and play a buffering role, absorbing the longitudinal wave energy. Because the support head and the cavity are inverted cones that cooperate, as the support head moves downward, the high-strength spring located between the T-shaped slider and the fixed block will be compressed and will also absorb some of the longitudinal wave energy, playing a buffering role against the longitudinal vibration of the beam; 3. The support head and the cavity are inverted cones that cooperate. Even in large vibrations, the relative positions of the support head and the base will not change significantly, effectively enhancing the stability of the overall structure of the bearing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall assembly structure of a multi-directional vibration-absorbing bridge seismic support according to the present invention;

[0021] Figure 2 This is a schematic diagram of the cover plate structure of a multi-directional vibration-absorbing bridge seismic bearing according to the present invention;

[0022] Figure 3 This is a schematic diagram of the base structure of a multi-directional vibration-absorbing bridge seismic support according to the present invention;

[0023] Figure 4 This is an exploded structural diagram of the overall assembly of a multi-directional vibration-absorbing bridge seismic support according to the present invention.

[0024] Figure 5This is a schematic diagram of the support head assembly structure of a multi-directional vibration-absorbing bridge seismic bearing according to the present invention;

[0025] Figure 6 This is a schematic diagram of the support head structure of a multi-directional vibration-absorbing bridge seismic bearing according to the present invention;

[0026] The numbers in the diagram are as follows: 1-Cover plate, 11-Cover plate connecting hole, 12-Support column, 13-First connecting hole, 2-Base, 21-Base connecting hole, 22-Cylindrical platform, 23-Mounting surface, 24-Sixth connecting hole, 31-First bolt, 32-Second bolt, 33-Third bolt, 34-Fourth bolt, 4-Connecting plate, 41-Second connecting hole, 42-Third connecting hole, 5-Support head, 51-Holding groove, 52-Fourth connecting hole, 53-T-shaped slide, 54-Eighth connecting hole, 6-T-shaped slider, 71-High-strength spring, 72-Disc spring, 8-Limiting block, 81-Sixth connecting hole, 9-Fixing block, 91-Seventh connecting hole. Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "rear," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0029] like Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 and Figure 6 The multi-directional vibration-absorbing bridge seismic bearing shown includes a cover plate 1, a base 2, a first bolt 31, a second bolt 32, a third bolt 33, a fourth bolt 34, a connecting plate 4, a support head 5, a T-shaped slider 6, a high-strength spring 71, a disc spring 72, a limiting block 8, and a fixing block 9.

[0030] A support column 12 is fixedly installed at the bottom of the cover plate 1, and a first connecting hole 13 is opened at the bottom of the support column 12.

[0031] A third connecting hole 42, with the same diameter as the first connecting hole 13, is opened at the center of the connecting plate 4. The connecting plate 4 is connected to the support column 12 through the second bolt 32, the third connecting hole 42, and the first connecting hole 13.

[0032] The support head 5 has six T-shaped grooves 53 evenly distributed around its circumference, which cooperate with the T-shaped slider 6.

[0033] The limiting block 8 has a T-shaped cross-section, which mates with the T-shaped groove 53.

[0034] High-strength springs 71 are evenly installed circumferentially between the T-shaped slider 6 and the fixed block 9, and the fixed block 9 and the high-strength springs 71 are fixedly connected.

[0035] A cylindrical platform 22 is fixedly connected to the upper end of the base 2. A cavity 26 is opened inside the cylindrical platform 22. Six mounting surfaces 23 are evenly opened around the circumference of the wall of the cavity 26. A sixth connecting hole 24 is opened at the bottom of the mounting surface 23.

[0036] The fixing block 9 has a seventh connecting hole 91. The fixing block 9 is connected to the mounting surface 23 through the fourth bolt 34, the seventh connecting hole 91, and the sixth connecting hole 24.

[0037] The connecting plate 4 has six second connecting holes 41 evenly spaced along its circumferential edge, and the support head 5 has six fourth connecting holes 52 evenly spaced along its circumferential edge. The support head 5 is connected to the connecting plate 4 via the first bolt 31, the second connecting holes 41, and the fourth connecting holes 52.

[0038] The disc spring 72 is made up of four stacked springs and is fixedly installed at the bottom of the cavity 26 (the diameter of the disc spring 72 is slightly smaller than the bottom diameter of the cavity 26).

[0039] The limiting block 8 has a sixth connecting hole 81, and the upper end face of the support head 5 has an eighth connecting hole 54. The limiting block 8 is installed on the upper end of the T-shaped slide 53 through the third bolt 33, the eighth connecting hole 54, and the sixth connecting hole 81.

[0040] In addition, the preferred support head 5 has six T-shaped grooves 53 evenly distributed along the circumference, and the included angle between each (adjacent) T-shaped groove 53 is 60°.

[0041] In addition, the preferred T-shaped slider 6 slides up and down in the T-shaped groove (53).

[0042] In addition, the preferred support head 5 and cavity 26 are both inverted cone shapes used in conjunction with each other, and have the same tilt angle, both less than 90°.

[0043] In addition, the included angle between each (adjacent) mounting surface 23 of the preferred cavity 26 wall is 60°.

[0044] In addition, the preferred mounting surface 23 is an inclined plane with the same inclination angle as the cavity 26, and it is parallel to the bottom surface of the T-shaped groove 53.

[0045] In addition, the included angle between each (adjacent) second connecting hole 41 is preferably 60°.

[0046] In addition, the included angle between each (adjacent) fourth connecting hole 52 is preferably 60°.

[0047] In addition, a holding groove 51 is preferably provided at the center of the top surface of the support head 5; wherein the holding groove 51 is used in conjunction with the head of the second bolt 32, and the second bolt 32 is embedded in the holding groove 51.

[0048] In addition, the preferred cover plate 1 has cover plate connection holes 11 at its four corners, and the cover plate 1 is connected to the bottom surface of the beam by bolts; the base 2 has base connection holes 21 at its four corners, and the base 2 is connected to the top surface of the cover beam by bolts.

[0049] The working principle or structural principle of the multi-directional vibration-absorbing bridge seismic bearing of this structure:

[0050] During operation, the cover plate 1 is connected to the bottom of the beam with bolts, and the base 2 is connected to the top surface of the cover beam with bolts, and the components are installed according to the connection method given in this structure.

[0051] When the beam vibrates, the high-strength springs 7, which are uniformly installed circumferentially between the T-shaped slider 6 and the fixed block 9, can effectively buffer and dampen the lateral displacement and absorb the transverse wave energy in all directions.

[0052] When the beam vibrates longitudinally, the support head 5 moves downward. The disc spring 72, which is fixedly installed at the bottom of the cavity 26, is compressed and acts as a buffer, absorbing the longitudinal wave energy. Because the support head 5 and the cavity 26 are inverted cones that fit together, as the support head 5 moves downward, the high-strength spring 71 located between the T-shaped slider 6 and the fixed block 9 is compressed and also absorbs some of the longitudinal wave energy, thus buffering the longitudinal vibration of the beam.

[0053] In addition, the support head 5 and the cavity 26 are inverted cones that match each other. Even under large vibrations, the relative positions of the support head 5 and the base 2 will not change significantly, which effectively enhances the stability of the overall support structure.

[0054] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-directional vibration-absorbing bridge seismic bearing, comprising a cover plate (1), a base (2), a first bolt (31), a second bolt (32), a third bolt (33), a fourth bolt (34), a connecting plate (4), a support head (5), a T-shaped slider (6), a high-strength spring (71), a disc spring (72), a limiting block (8), and a fixing block (9). A support column (12) is fixedly installed at the bottom of the cover plate (1), and a first connecting hole (13) is opened at the bottom of the support column (12). The connecting plate (4) has a third connecting hole (42) at its center, which has the same diameter as the first connecting hole (13). The connecting plate (4) is connected to the support column (12) by the second bolt (32), the third connecting hole (42), and the first connecting hole (13). The support head (5) has six T-shaped grooves (53) evenly distributed around its circumference, which cooperate with the T-shaped slider (6). The limiting block (8) has a T-shaped cross-section, which matches the T-shaped groove (53). The high-strength spring (71) is evenly installed circumferentially between the T-shaped slider (6) and the fixed block (9), and the fixed block (9) and the high-strength spring (71) are fixedly connected. A cylindrical platform (22) is fixedly connected to the upper end of the base (2). A cavity (26) is opened inside the cylindrical platform (22). Six mounting surfaces (23) are evenly opened along the circumference of the wall of the cavity (26). A sixth connecting hole is opened at the bottom of the mounting surface (23). The fixing block (9) has a seventh connecting hole (91), and the fixing block (9) is connected to the mounting surface (23) through the fourth bolt (34), the seventh connecting hole (91), and the sixth connecting hole. The connecting plate (4) has six second connecting holes (41) evenly spaced along its circumferential edge, and the support head (5) has six fourth connecting holes (52) evenly spaced along its circumferential edge. The support head (5) is connected to the connecting plate (4) via the first bolt (31), the second connecting holes (41), and the fourth connecting holes (52). The disc spring (72) is composed of four stacked spring leaves and is fixedly installed at the bottom of the cavity (26). The limiting block (8) has a sixth connecting hole, and the upper end face of the support head (5) has an eighth connecting hole (54). The limiting block (8) is installed on the upper end of the T-shaped slide (53) through the third bolt (33), the eighth connecting hole (54), and the sixth connecting hole.

2. The multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The support head (5) has six T-shaped grooves (53) evenly distributed along the circumference, and the included angle between each T-shaped groove (53) is 60°.

3. The multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The T-shaped slider (6) slides up and down in the T-shaped groove (53).

4. The multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The support head (5) and the cavity (26) are both inverted cone shapes used in conjunction with each other, and have the same tilt angle, both less than 90°.

5. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The included angle between each mounting surface (23) of the cavity (26) wall is 60°.

6. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The mounting surface (23) is an inclined plane with the same inclination angle as the cavity (26) and is parallel to the bottom surface of the T-shaped groove (53).

7. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The cover plate (1) has cover plate connection holes (11) at its four corners, and the cover plate (1) is connected to the bottom surface of the beam by bolts; the base (2) has base connection holes (21) at its four corners, and the base (2) is connected to the top surface of the cover beam by bolts.

8. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The included angle between each of the second connecting holes (41) is 60°.

9. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The included angle between each of the fourth connecting holes (52) is 60°.

10. A multi-directional vibration-absorbing bridge seismic bearing according to claim 1, characterized in that: The support head (5) has a holding groove (51) at the center of its top surface; The groove (51) is used in conjunction with the head of the second bolt (32).

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