CN212983580U - Damping spherical support of highway bridge - Google Patents
Damping spherical support of highway bridge Download PDFInfo
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- CN212983580U CN212983580U CN202020883250.5U CN202020883250U CN212983580U CN 212983580 U CN212983580 U CN 212983580U CN 202020883250 U CN202020883250 U CN 202020883250U CN 212983580 U CN212983580 U CN 212983580U
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Abstract
The utility model discloses a damping ball-type support of public road bridge roof beam, including undersetting concave plate, upper bracket board, plane slide, spherical crown board, sphere slide, zip and two-way attenuator. Two ends of the zipper are respectively and fixedly connected with the lower support concave plate and the upper support plate. The bidirectional damper comprises two outer sleeves which are symmetrically arranged, and the two outer sleeves are connected through a piston rod; two outer sleeves are fixedly connected to the upper plate surface of the lower support concave plate, and the piston rod is connected with the lower surface of the upper support plate through a connecting rod. The rigidity of the support can be improved through the zipper, and the phenomenon of beam falling during an earthquake is prevented. Through the setting of attenuator, can alleviate the relative velocity of motion of plane slide and sphere slide and adjacent metalwork when the earthquake takes place, slow down the wearing and tearing of plane slide and sphere slide to improve the life of whole support. The utility model discloses a damping ball-type support has long service life, can effectively prevent advantages such as roof beam accident that falls.
Description
Technical Field
The utility model relates to a public road bridge roof beam field especially relates to a public road bridge roof beam's damping ball-type support.
Background
The spherical bearing is a novel bridge bearing developed on the basis of a basin-type rubber bearing. The spherical bearing has consistent rotation performance in all directions, is suitable for a curved bridge, a slope bridge, an inclined bridge, a wide bridge and a large-span bridge, has no bearing rubber block, and is particularly suitable for low-temperature areas. The spherical support has the advantages that: the force transmission is reliable, the rotation performance in all directions is consistent, the basin-shaped rubber support has the characteristics of strong bearing capacity and large horizontal displacement, can meet the requirement of a large rotation angle, and is suitable for wide bridges, slope bridges, curved bridges and the like; and because the pressure-bearing part does not use a rubber block, the low-temperature brittleness of rubber and other influences do not exist, and the pressure-bearing part is particularly suitable for low-temperature areas.
During earthquake, the damage of the bridge caused by earthquake is mainly caused by the damage of the earth surface and the shock damage of the bridge. For the spherical bearing, measures for limiting the displacement and preventing the spherical bearing from being inclined are required to improve the shock resistance.
In the existing support, when an earthquake occurs, due to structural defects, the plastic material lines in the support are abraded greatly, and the service life of the support is short. In addition, the conventional support is easy to fall off after an earthquake occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a damping ball-type support of highway bridge that shock resistance is strong, long service life is provided has the function of better prevention roof beam that falls.
In order to solve the technical problem, the utility model adopts the following technical scheme.
A damping spherical support of a highway bridge mainly comprises a lower support concave plate 1, an upper support plate 2, a plane sliding plate 3, a spherical crown plate 4 and a spherical sliding plate 5;
it is characterized by also comprising a bidirectional damper 6;
the bidirectional damper 6 comprises two symmetrically arranged outer sleeves 601, and the two outer sleeves 601 are connected through a piston rod 602; a damping structure is arranged on the piston rod 602;
the two outer sleeves 601 are both fixedly connected to the upper plate surface of the lower support concave plate 1, and the piston rod 602 is connected with the lower surface of the upper support plate 2 through a connecting rod 603.
The structural features of the present invention further include the following preferred features.
A spherical groove is formed in the middle of the upper surface of the lower support concave plate 1, the spherical sliding plate 5 is arranged in the spherical groove, and the spherical crown plate 4 is arranged on the spherical sliding plate 5; the top surface of the spherical crown plate 4 is provided with the plane sliding plate 3; the upper support plate 2 is disposed above the plane sliding plate 3.
The damping spherical support of the highway bridge also comprises a zipper 7; the upper portion of zip 7 with upper bracket board 2 is fixed connection mutually, the lower part of zip 7 with lower support concave plate 1 is fixed connection mutually.
The zipper 7 is of a waist-shaped structure.
The outer sleeve 601 of the bidirectional damper 6 is a cylindrical structure with one open end; an outer seal plug 604 and an inner seal plug 605 are arranged inside the outer sleeve 601.
The end of the piston rod 602 is provided with a piston 606, and the piston 606 is positioned between the inner plug 605 and the bottom of the outer sleeve 601.
The damping structure arranged on the piston rod 602 is a damping disc 607; the damping disc 607 is a circular disc, and the damping disc 607 is concentrically arranged with the piston rod 602 and fixed on the piston rod 602; the damping disk 607 is disposed between the outer plug 604 and the inner plug 605.
One or more damping holes 608 are formed in the disc surface of the damping disc 607.
The damping holes 608 penetrate the damping disk 607 along the axial direction of the damping disk 607, and are uniformly arranged around the center of the damping disk 607.
The damping holes 608 are 4, 6 or 8.
The utility model has the advantages that:
the utility model discloses a damping ball-type support of public road bridge roof beam mainly includes undersetting concave plate, upper bracket board, plane slide, spherical crown board, sphere slide, zip and two-way attenuator. One end of the zipper is fixedly connected with the upper support plate, and the other end of the zipper is fixedly connected with the lower support concave plate. The bidirectional damper comprises two outer sleeves which are symmetrically arranged, and the two outer sleeves are connected through a piston rod; the two outer sleeves are fixedly connected to the upper plate surface of the lower support concave plate, and the piston rod is connected with the lower surface of the upper support plate through a connecting rod.
(1) The lower support concave plate and the side surface of the upper support plate are connected through a C-shaped zipper. The rigidity of the support can be improved through the zipper, and the phenomenon of beam falling during an earthquake is prevented.
(2) The upper plate surface of the lower support concave plate is connected with the lower plate surface of the upper support plate through a damper.
Through the settlement of attenuator, can slow down the relative velocity of motion of undersetting concave plate and upper bracket board when the earthquake takes place, and then alleviate the relative velocity of motion of plane slide and sphere slide and adjacent metalwork, slow down the wearing and tearing of plane slide and sphere slide to improve the life of whole support. The common spherical support can completely fail after 6-grade earthquakes, and a new support needs to be replaced. The experiment proves, the utility model discloses a damping ball-type support can continue to use after experiencing 8 grades of earthquakes.
The utility model discloses a damping ball-type support of public road bridge roof beam has can slow down the wearing and tearing of plane slide and sphere slide when the earthquake takes place, improve the life of whole support, effectively prevent technical advantage such as roof beam accident, anti-seismic performance are good.
Drawings
Figure 1 is the front view of the damping ball type support of the utility model discloses highway bridge roof beam.
Figure 2 is the left side view of the utility model discloses highway bridge's damping ball-type support.
Figure 3 is the top view of the utility model discloses highway bridge's damping ball-type support.
Fig. 4 is a sectional view a-a of fig. 3.
Fig. 5 is a schematic structural view of the damper of the present invention.
The parts in the drawings are numbered as follows: 1 lower support concave plate, 2 upper support plate, 3 plane sliding plate, 4 spherical crown plate, 5 spherical sliding plate, 6 two-way damper, 601 outer sleeve, 602 piston rod, 603 connecting rod, 604 outer seal plug, 605 inner seal plug, 606 piston, 607 damping disc, 608 damping hole and 7 zipper.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
The utility model discloses a damping ball-type support of public road bridge roof beam mainly includes undersetting concave plate 1, upper bracket board 2, plane slide 3, spherical crown plate 4 and sphere slide 5, still includes two-way attenuator 6.
The bidirectional damper 6 comprises two symmetrically arranged outer sleeves 601, and the two outer sleeves 601 are connected through a piston rod 602; the piston rod 602 is provided with a damping structure.
The two outer sleeves 601 are both fixedly connected to the upper plate surface of the lower support concave plate 1, and the piston rod 602 is connected with the lower surface of the upper support plate 2 through a connecting rod 603. The utility model discloses in, undersetting concave plate, upper bracket board and spherical crown board are the steel part, adopt the stainless steel to make and form. The plane sliding plate and the spherical sliding plate are both made of non-metal materials, and polytetrafluoroethylene is usually adopted as a manufacturing material of the plane sliding plate and the spherical sliding plate.
The utility model discloses a damping ball-type support of public road bridge roof beam has increased two structures of zip fastener and two-way attenuator on current ball-type support for this support can reduce the relative movement speed between plastic material and the steel contact surface when the earthquake takes place, reduces plastic material's wearing and tearing, thereby has improved the life of support.
A spherical groove is formed in the middle of the upper surface of the lower support concave plate 1, the spherical sliding plate 5 is arranged in the spherical groove, and the spherical crown plate 4 is arranged on the spherical sliding plate 5; the top surface of the spherical crown plate 4 is provided with the plane sliding plate 3; the upper support plate 2 is disposed above the plane sliding plate 3. The spherical support also comprises a rubber sealing ring, a dust cover and the like. The spherical crown plate is the core of the spherical bearing. The plane part of the top of the fixing frame is provided with a groove for embedding the PTFE sheet, and the groove is used for fixing the PTFE sheet. The lower support concave plate is made of steel plates or castings, is fixed on a pier through bolts and the like, mainly plays a role in fixing the spherical tetrafluoro plate and dispersedly transmits the support reaction force to the pier and the abutment.
The plane sliding plate and the spherical sliding plate are all made of polytetrafluoroethylene plates. The two teflon plates are the main sliding parts of the support. Pressing into a silicone grease oil storage pit on the surface of the polytetrafluoroethylene plate by using a special die, and coating 295 silicone grease on the silicone grease oil storage pit to reduce sliding friction and abrasion of the polytetrafluoroethylene plate. The sliding between the stainless steel plates of the plane sliding plate and the upper support plate can meet the displacement requirement of the support, and the working principle of the plane sliding plate is completely consistent with that of the basin-type rubber support.
The damping spherical support of the highway bridge also comprises a zipper 7; the upper portion of zip 7 with upper bracket board 2 is fixed connection mutually, the lower part of zip 7 with lower support concave plate 1 is fixed connection mutually.
In a particular embodiment, the zipper 7 may be of a waist-type configuration, as a preferred configuration.
The semicircular shapes at the two ends of the zipper of the waist-shaped structure extend out of the side walls of the lower support concave plate and the upper support plate. The upper and lower straight portions of the waist-shaped structure are inserted into the upper and lower support concave plates, respectively, as shown by the dotted line portion of fig. 1.
A plurality of zipper sets can be arranged between the lower support concave plate and the upper support plate, and each zipper set comprises two adjacent zippers which are arranged in parallel. The lower support concave plate and the upper support plate are connected through a plurality of zipper groups. When an earthquake occurs, the high rigidity is provided, and the phenomenon of beam falling is avoided.
The outer sleeve 601 of the bidirectional damper 6 is a cylindrical structure with one open end; an outer seal plug 604 and an inner seal plug 605 are arranged inside the outer sleeve 601.
The end of the piston rod 602 is provided with a piston 606, and the piston 606 is positioned between the inner plug 605 and the bottom of the outer sleeve 601.
The damping structure arranged on the piston rod 602 is a damping disc 607; the damping disc 607 is a circular disc, and the damping disc 607 is concentrically arranged with the piston rod 602 and fixed on the piston rod 602; the damping disk 607 is disposed between the outer plug 604 and the inner plug 605.
One or more damping holes 608 are formed in the disc surface of the damping disc 607.
In a particular embodiment, the damping orifice includes a straight orifice portion and a flare portion. The flared portion is located on the side near the outer seal plug 604 and the straight bore portion is located on the side near the inner seal plug 605, as shown in fig. 5.
The damping holes 608 penetrate the damping disk 607 along the axial direction of the damping disk 607, and are uniformly arranged around the center of the damping disk 607.
The damping holes 608 are 4, 6 or 8.
As shown in fig. 1-5, both ends of the piston rod are in a bilateral symmetry structure. A connecting rod 603 is arranged in the middle of the piston rod. The lower end of the connecting rod 603 is fixed in the middle of the piston rod, and the connecting rod 603 is connected with the lower surface of the upper support plate. The connecting rod is positioned between the two outer sleeves.
Two ends of the piston rod are respectively inserted into the two outer sleeves, and pistons are arranged at the two ends. The cavity in the outer sleeve is divided into two parts by an inner sealing plug. The piston is located between the inner plug and the bottom of the outer sleeve. The damping disc is located in the space between the outer seal plug and the inner seal plug.
When an earthquake occurs, the rigidity between the lower support concave plate and the upper support plate is enhanced through the plurality of zipper sets, and the beam falling event can be avoided.
In earthquake, because the vibration speed is very fast, severe abrasion can occur between the plane sliding plate and the spherical sliding plate made of the polytetrafluoroethylene material and the adjacent steel parts or castings, and the abrasion of the polytetrafluoroethylene material is very fast. When the wear exceeds the allowable level, the seat is easily repaired in time, and accidents easily occur. Therefore, maintenance personnel must regularly inspect the support, replace the excessively worn support, or replace worn-out flat and spherical slides. Thus, the maintenance cost of the bridge is increased. And when the bridge is maintained, the traffic trip is probably influenced, and great inconvenience is brought to the trip of people.
When the lower support concave plate and the upper support plate displace, the connecting rod pushes the piston rod, and damping structures are arranged in outer sleeves at two ends of the piston rod to form a damping effect, so that the relative movement speed between the lower support concave plate and the upper support plate can be reduced; the two move slowly from the mode of quick vibration friction. In this way, the friction and vibration between the flat slide plate, the spherical crown plate and the spherical slide plate between the lower bearing concave plate and the upper bearing plate are also reduced. Therefore, the abrasion of the plane sliding plate and the spherical sliding plate is slowed down, the service life is prolonged, and the service life of the support is further prolonged.
The common spherical support can completely fail after 6-grade earthquakes, and a new support needs to be replaced.
The experiment proves, the utility model discloses a damping ball-type support can continue to use after experiencing 8 grades of earthquakes. The utility model discloses a damping ball-type support has improved the anti-seismic performance of bridge greatly, has reduced bridge beam supports's maintenance cost from to a great extent, has also reduced staff's intensity of labour, has improved the fail safe nature of bridge.
The utility model discloses a damping ball-type support of public road bridge roof beam has following advantage.
The lower support concave plate and the side surface of the upper support plate are connected through a zipper. The rigidity of the support can be improved through the zipper, and the phenomenon of beam falling during an earthquake is prevented.
The upper plate surface of the lower support concave plate is connected with the lower plate surface of the upper support plate through a damper. Through the settlement of attenuator, can slow down the relative velocity of motion of undersetting concave plate and upper bracket board when the earthquake takes place, and then alleviate the relative velocity of motion of plane slide and spherical slide and adjacent metalwork, slow down the wearing and tearing of plane slide and spherical slide to improve the life of whole support, improved the shock resistance of support.
The utility model discloses a damping ball-type support of public road bridge roof beam has can slow down the wearing and tearing of plane slide and sphere slide when the earthquake takes place, improve the life of whole support, effectively prevent technical advantage such as roof beam accident.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A damping spherical support of a highway bridge mainly comprises a lower support concave plate (1), an upper support plate (2), a plane sliding plate (3), a spherical crown plate (4) and a spherical sliding plate (5);
characterized in that the device also comprises a bidirectional damper (6);
the bidirectional damper (6) comprises two symmetrically arranged outer sleeves (601), and the two outer sleeves (601) are connected through a piston rod (602); a damping structure is arranged on the piston rod (602);
the two outer sleeves (601) are fixedly connected to the upper plate surface of the lower support concave plate (1), and the piston rod (602) is connected with the lower surface of the upper support plate (2) through a connecting rod (603).
2. The damping spherical bearing for the highway bridge according to claim 1, characterized in that a spherical groove is arranged in the middle of the upper surface of the concave plate (1) of the lower bearing, the spherical skateboard (5) is arranged in the spherical groove, and the spherical crown plate (4) is arranged on the spherical skateboard (5); the top surface of the spherical crown plate (4) is provided with the plane sliding plate (3); the upper support plate (2) is arranged on the plane sliding plate (3).
3. Damping ball bearing for road bridges according to claim 1, characterized in that it also comprises a zip (7); the upper portion of zip (7) with upper bracket board (2) is connected fixedly, the lower part of zip (7) with lower support notch board (1) is connected fixedly mutually.
4. Damping ball bearing for road bridges according to claim 3, characterized in that said zip (7) is of kidney-shaped structure.
5. The dampening spherical bearing for road bridges according to claim 1, characterized in that the outer sleeve (601) of the bidirectional dampener (6) is a cylindrical structure open at one end; an outer seal plug (604) and an inner seal plug (605) are arranged in the outer sleeve (601).
6. The damping ball bearing for road bridges according to claim 5, characterized in that the end of the piston rod (602) is provided with a piston (606), said piston (606) being located between the inner plug (605) and the bottom of the outer sleeve (601).
7. The damping ball type bearing for road bridges of claim 5, wherein the damping structure provided on the piston rod (602) is a damping disc (607); the damping disc (607) is a circular disc, and the damping disc (607) and the piston rod (602) are concentrically arranged and fixed on the piston rod (602); the damping disc (607) is arranged between the outer seal plug (604) and the inner seal plug (605).
8. Damping ball bearing for road bridges according to claim 7, characterized in that one or more damping holes (608) are provided on the disc surface of the damping disc (607).
9. The damping ball bearing of a road bridge according to claim 8, characterized in that the plurality of damping holes (608) penetrate the damping disc (607) along the axial direction of the damping disc (607) and are uniformly arranged around the center of the damping disc (607).
10. Damping ball bearing for road bridges according to claim 8, characterized in that said damping holes (608) are 4, 6 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883250.5U CN212983580U (en) | 2020-05-22 | 2020-05-22 | Damping spherical support of highway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883250.5U CN212983580U (en) | 2020-05-22 | 2020-05-22 | Damping spherical support of highway bridge |
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| Publication Number | Publication Date |
|---|---|
| CN212983580U true CN212983580U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020883250.5U Active CN212983580U (en) | 2020-05-22 | 2020-05-22 | Damping spherical support of highway bridge |
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| Country | Link |
|---|---|
| CN (1) | CN212983580U (en) |
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2020
- 2020-05-22 CN CN202020883250.5U patent/CN212983580U/en active Active
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