CN211472135U - Plane gear type bridge damping structure - Google Patents
Plane gear type bridge damping structure Download PDFInfo
- Publication number
- CN211472135U CN211472135U CN201922468774.8U CN201922468774U CN211472135U CN 211472135 U CN211472135 U CN 211472135U CN 201922468774 U CN201922468774 U CN 201922468774U CN 211472135 U CN211472135 U CN 211472135U
- Authority
- CN
- China
- Prior art keywords
- elastic supporting
- supporting piece
- piece
- type bridge
- gear type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a plane gear type bridge damping structure, which comprises a force transmission piece arranged at the bottom of a main beam; the buffering reset assembly comprises a front elastic supporting piece and a rear elastic supporting piece, the front elastic supporting piece and the rear elastic supporting piece are arranged between the support cushion stones at the top of the cover beam, the left end and the right end of each of the front elastic supporting piece and the rear elastic supporting piece are connected with the end surfaces of the inner sides of the support cushion stones, and one sides of the front elastic supporting piece and the rear elastic supporting piece, which are opposite, are arranged at intervals to form a reaction cavity for accommodating the force transmission piece; the middle of the reaction cavity is large, and the two sides of the reaction cavity are small, so that when the main beam drives the force transmission piece to displace, the force transmission piece moves along the surface of the reaction cavity to press the front elastic supporting piece and/or the rear elastic supporting piece to deform, and the main beam is reset. The utility model discloses simple structure, low in cost, construction are swift, the maintenance is changed conveniently, not only can restrict the girder and take place horizontal or longitudinal displacement, can make the girder independently reset moreover, have effectively improved bridge life, have ensured the current safety of people's car, have good engineering application prospect.
Description
Technical Field
The utility model belongs to the technical field of the bridge antidetonation shock attenuation technique and specifically relates to a gear type bridge shock attenuation structure in plane.
Background
With the development of highway bridge technology, the requirement on bridge shock absorption is higher and higher, and particularly in areas with frequent earthquakes, the bridge shock absorption is very important. When the earthquake takes place, if do not have sufficient antidetonation or shock-absorbing measure, great lateral displacement will take place for upper portion girder receives the damage, has the roof beam risk of falling when serious, directly threatens the driving safety of vehicle on the bridge. The existing bridge damping structure is mainly considered from the aspect of restraining the transverse displacement of the main beam, and can only restrain the transverse displacement of the main beam to a certain extent; once earthquake happens, the main beam cannot recover to the original position after being transversely displaced, and certain influence is caused on the subsequent use of the bridge. To some extent, the bridge with the displaced main girder is a bridge with potential safety hazard.
Disclosure of Invention
The utility model provides a gear type bridge shock attenuation structure, aim at solve current bridge shock attenuation structure and only can restrict the girder and take place lateral displacement and can not make the girder problem that independently resets.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
plane gear type bridge shock attenuation structure, include
The force transmission piece is arranged at the bottom of the main beam;
the buffering reset assembly comprises a front elastic supporting piece and a rear elastic supporting piece, wherein the front elastic supporting piece and the rear elastic supporting piece are arranged between the support cushion stones at the top of the cover beam, the left end and the right end of each of the front elastic supporting piece and the rear elastic supporting piece are connected with the end surfaces of the inner sides of the support cushion stones, and one sides of the front elastic supporting piece and the rear elastic supporting piece, which are opposite to each other, are arranged at intervals to form a reaction cavity for accommodating the force transmission piece;
the middle of the reaction cavity is large, and the two sides of the reaction cavity are small, so that when the main beam drives the force transmission piece to displace, the force transmission piece moves along the surface of the reaction cavity to press the front elastic supporting piece and/or the rear elastic supporting piece to deform, and the main beam is reset.
The force transmission piece is a horizontal rotary gear connected with the main beam through a connecting assembly.
The connecting assembly comprises a vertical embedded bolt connected with the main beam, and a turntable bearing used for being sleeved with the horizontal rotary gear is fixedly connected to the embedded bolt.
The distance between the bottom surface of the horizontal rotary gear and the upper surface of the cover beam is 2-3 cm.
The front elastic supporting part and the rear elastic supporting part are identical in structure and are composed of a steel outer shell and an elastic buffering core body filled in the steel outer shell, a toothed plate layer meshed with the horizontal rotary gear is arranged on the steel outer shell, and the cross section of the toothed plate layer is of a V-shaped structure.
The front elastic supporting piece and the rear elastic supporting piece are fixedly connected with the cover beam through vertical bolts.
The buffering reset assembly further comprises an annular hoop which is tightly arranged on the outer sides of the support cushion, the front elastic supporting piece and the rear elastic supporting piece, and a plurality of limiting fixing pieces connected with the support cushion are arranged on the outer side of the annular hoop.
The outer side surfaces of the front elastic supporting piece and the rear elastic supporting piece are coplanar with the support base cushion stone.
The annular hoop is made of a steel wire rope, a steel strand or an elastic fiber rope.
The limiting fixing piece is a door-shaped steel piece, and two ends of the door-shaped steel piece are both embedded in the outer side wall of the support base cushion stone.
Plane gear type bridge shock attenuation structure, can conveniently install under the condition that does not change original bridge structures system and pass power piece and buffering reset assembly, when the upper girder is receiving the earthquake, when the influence of circumstances such as outside striking takes place horizontal or longitudinal displacement, can pass through the interact who passes power piece and buffering reset assembly, before the make full use of, the deformability of back resilient support spare and annular cuff, the deformation of restriction upper portion girder to make it resume the normal position, thereby reach the purpose that the shock attenuation resets. The utility model discloses simple structure, low in cost, construction are swift, the maintenance is changed conveniently, not only can restrict the girder and take place horizontal or longitudinal displacement, can make the girder independently reset moreover, have effectively improved bridge life, have ensured the current safety of people's car, have good engineering application prospect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a schematic structural view of the front elastic support member in fig. 3.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments of the present invention are based on the technical solutions of the present invention and are described in detail, but the present invention is not limited to the following embodiments.
As shown in fig. 1-4, the damping structure for a plane gear type bridge of the present invention comprises a force transmission member and a damping restoring member, which are engaged with each other.
The horizontal slewing gear 1.1 of above-mentioned biography power piece for installing in girder M bottom, horizontal slewing gear 1.1 meets with girder M through coupling assembling, as shown in fig. 2, 3, above-mentioned coupling assembling includes 4 vertical embedded bolts 1.2 that link to each other with girder M, and the carousel bearing 1.3 of connecting on embedded bolt 1.2 is fixed through upper and lower nut, and above-mentioned horizontal slewing gear 1.1 is cup jointed in the carousel bearing 1.3 outside. In order to ensure the reliability of the horizontal rotary gear 1.1 and the connection performance with the main beam M, the diameter of the embedded bolt 1.2 is at least 5cm, the diameter of the turntable bearing 1.3 is at least 20cm, and the effective thickness of the horizontal rotary gear 1.1 is at least 3 cm. In order to facilitate assembly and reduce friction, the bottom surface of the horizontal slewing gear 1.1 is at least 2-3cm away from the upper surface of the bent cap N.
The buffering reset assembly comprises a front elastic supporting piece 2.2 and a rear elastic supporting piece 2.3 which are fixedly connected with the cover beam N through a vertical bolt 2.1, and the front elastic supporting piece and the rear elastic supporting piece are positioned between the support cushion stones R at the top of the cover beam N.
The front elastic supporting part 2.2 and the rear elastic supporting part 2.3 have the same structure and are both composed of a steel shell and an elastic buffer core filled in the steel shell. As shown in fig. 4, the cross section of the front elastic support member 2.2 is in a V shape, the thickness of the thinnest part in the middle of the cross section is at least 3cm, the thickness of the thickest part at the end part of the cross section is at least 10cm, the left and right end surfaces of the steel shell 2.2a are connected with the inner side end surfaces of the support cushion stones R at two sides, the thickness of the steel shell 2.2a is 4-10 mm, the front side wall and the front side wall of the support cushion stones R at two ends are coplanar, the rear side wall is in a V-shaped cross section structure, and a toothed plate layer 2.2b capable of being meshed with a horizontal rotary gear 1.1 is mounted; the steel shell 2.2a is filled with an elastic buffer core 2.2c made of elastic rubber or elastic fiber and the like. When the rear side wall of the front elastic supporting part 2.2 and the front side wall of the rear elastic supporting part 2.3 are oppositely arranged, a reaction force cavity 2.4 (see fig. 3) with a large middle distance and a small space at two sides can be formed, and toothed plates at two sides of the reaction force cavity 2.4 are meshed with the horizontal rotary gear 1.1. When the main beam M drives the horizontal rotary gear 1.1 to generate transverse displacement, the horizontal rotary gear 1.1 moves along the surface of the counter-force cavity 2.4 to press the front elastic supporting part 2.2 and the rear elastic supporting part 2.3 to generate deformation, so that the main beam is reset.
Furthermore, the buffering reset assembly also comprises an annular hoop 2.5 made of a steel wire rope, a steel strand or an elastic fiber rope, and the annular hoop 2.5 is tightly sleeved outside the support base cushion R, the front elastic supporting part 2.2 and the rear elastic supporting part 2.3 and is in a tight state; in order to prevent the annular collar 2.5 from being displaced, a plurality of limit fasteners 2.6 are mounted on the outside thereof, which are connected to the abutment pads R. Each annular hoop 2.5 is fixed by 18 limiting fixing pieces 2.6, each limiting fixing piece 2.6 is a door-shaped steel piece, and the limiting fixing pieces are evenly distributed on three outer side faces of each support base cushion stone R and the two end parts of each limiting fixing piece are embedded on the outer side wall of each support base cushion stone R. When the annular collar 2.5 is plural, it is arranged at intervals from top to bottom along the outer side faces of the abutment padstone R, the front elastic support member 2.2 and the rear elastic support member 2.3.
The distance between the middle parts of the reaction cavities 2.4 is large, and the distance between the two sides of the reaction cavities is small, so that the horizontal rotary gear 1.1 can be prevented from being extruded when the bridge is in a normal state; and when the external environment changes (the conditions such as earthquake occur), the main beam M drives the horizontal rotary gear 1.1 to generate transverse displacement, and simultaneously, the horizontal rotary gear and the toothed plate layers of the front elastic supporting part 2.2 and the rear elastic supporting part 2.3 are meshed and rotated. As the accommodating space of the horizontal rotary gear 1.1 is reduced, the transverse displacement is restrained, and the moving speed is slowed down, the damping function of the utility model is exerted, and the beam falling risk of the main beam M is effectively reduced; simultaneously, preceding, back resilient support piece 2.2, 2.3's shell and core pressurized produce deformation, because the elastic buffering core has the elastic recovery ability, it produces reverse thrust to horizontal slewing gear 1.1, makes girder M reach the purpose in automatic recovery original position along with horizontal slewing gear 1.1's reverse roll, this in-process the utility model discloses fully consumed seismic energy, effectively played the cushioning effect.
When the upper girder M is longitudinally displaced, the horizontal slewing gear 1.1 is longitudinally displaced along with the upper girder M, so that the horizontal slewing gear directly contacts and compresses the front elastic support 2.2 or the rear elastic support 2.3, and the compression deformation of the front elastic support 2.2 or the rear elastic support 2.3 is transmitted to the inner core; under the resistance action of the compression deformation of the core body, the longitudinal displacement of the horizontal rotary gear 1.1 and the upper girder M is restrained, so that the longitudinal displacement of the upper girder M is reduced, and the shock absorption effect is achieved; meanwhile, due to the elastic recovery capability of the core body, the horizontal rotary gear 1.1 and the upper girder M are longitudinally displaced in opposite directions, so that the purpose of recovering the original position is achieved, the seismic energy is consumed, and the effect of initial shock absorption is achieved.
If the earthquake energy, the collision energy and the like causing the transverse or longitudinal displacement of the upper main beam M are large, the front elastic support 2.2 and/or the rear elastic support 2.3 are compressed by the large force of the horizontal slewing gear 1.1, so that large unrecoverable deformation is generated; even after the front elastic support 2.2 and/or the rear elastic support 2.3 are damaged, when the horizontal rotary gear 1.1 is in direct collision contact with the annular hoop 2.5, the tensile force of the annular hoop 2.5 wound on the support cushion R and the outer sides of the front elastic support 2.2 and the rear elastic support 2.3 is increased to form a second secondary restraint on the longitudinal/transverse movement of the horizontal rotary gear 1.1, and due to the elastic recovery effect of the annular hoop 2.5, the horizontal rotary gear 1.1 and the upper girder M can generate transverse or longitudinal displacement in the opposite direction, so that the purpose of recovering the original position is achieved, the seismic energy is consumed, and the secondary damping effect is achieved.
Claims (10)
1. The utility model provides a face gear type bridge shock attenuation structure which characterized in that: comprises that
The force transmission piece is arranged at the bottom of the main beam;
the buffering reset assembly comprises a front elastic supporting piece and a rear elastic supporting piece, wherein the front elastic supporting piece and the rear elastic supporting piece are arranged between the support cushion stones at the top of the cover beam, the left end and the right end of each of the front elastic supporting piece and the rear elastic supporting piece are connected with the end surfaces of the inner sides of the support cushion stones, and one sides of the front elastic supporting piece and the rear elastic supporting piece, which are opposite to each other, are arranged at intervals to form a reaction cavity for accommodating the force transmission piece;
the middle of the reaction cavity is large, and the two sides of the reaction cavity are small, so that when the main beam drives the force transmission piece to displace, the force transmission piece moves along the surface of the reaction cavity to press the front elastic supporting piece and/or the rear elastic supporting piece to deform, and the main beam is reset.
2. The face gear type bridge damping structure according to claim 1, wherein: the force transmission piece is a horizontal rotary gear connected with the main beam through a connecting assembly.
3. The face gear type bridge damping structure according to claim 2, wherein: the connecting assembly comprises a vertical embedded bolt connected with the main beam, and a turntable bearing used for being sleeved with the horizontal rotary gear is fixedly connected to the embedded bolt.
4. The face gear type bridge damping structure according to claim 2, wherein: the distance between the bottom surface of the horizontal rotary gear and the upper surface of the cover beam is 2-3 cm.
5. The face gear type bridge damping structure according to claim 2, wherein: the front elastic supporting part and the rear elastic supporting part are identical in structure and are composed of a steel outer shell and an elastic buffering core body filled in the steel outer shell, a toothed plate layer meshed with the horizontal rotary gear is arranged on the steel outer shell, and the cross section of the toothed plate layer is of a V-shaped structure.
6. The face gear type bridge damping structure according to claim 5, wherein: the front elastic supporting piece and the rear elastic supporting piece are fixedly connected with the cover beam through vertical bolts.
7. The face gear type bridge damping structure according to claim 1, wherein: the buffering reset assembly further comprises an annular hoop which is tightly arranged on the outer sides of the support cushion, the front elastic supporting piece and the rear elastic supporting piece, and a plurality of limiting fixing pieces connected with the support cushion are arranged on the outer side of the annular hoop.
8. The face gear type bridge damping structure according to claim 7, wherein: the outer side surfaces of the front elastic supporting piece and the rear elastic supporting piece are coplanar with the support base cushion stone.
9. The face gear type bridge damping structure according to claim 7, wherein: the annular hoop is made of a steel wire rope, a steel strand or an elastic fiber rope.
10. The face gear type bridge damping structure according to claim 7, wherein: the limiting fixing piece is a door-shaped steel piece, and two ends of the door-shaped steel piece are both embedded in the outer side wall of the support base cushion stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922468774.8U CN211472135U (en) | 2019-12-31 | 2019-12-31 | Plane gear type bridge damping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922468774.8U CN211472135U (en) | 2019-12-31 | 2019-12-31 | Plane gear type bridge damping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211472135U true CN211472135U (en) | 2020-09-11 |
Family
ID=72359884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922468774.8U Active CN211472135U (en) | 2019-12-31 | 2019-12-31 | Plane gear type bridge damping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211472135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965458A (en) * | 2019-12-31 | 2020-04-07 | 河南省交通规划设计研究院股份有限公司 | Plane gear type bridge damping structure |
-
2019
- 2019-12-31 CN CN201922468774.8U patent/CN211472135U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965458A (en) * | 2019-12-31 | 2020-04-07 | 河南省交通规划设计研究院股份有限公司 | Plane gear type bridge damping structure |
| CN110965458B (en) * | 2019-12-31 | 2024-09-13 | 河南省交通规划设计研究院股份有限公司 | Planar gear type bridge damping structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110004852B (en) | Assembled road barrier structure with shock attenuation power consumption effect | |
| CN211472135U (en) | Plane gear type bridge damping structure | |
| CN106567326A (en) | Parallel double-rope type damping block having self-reset function | |
| CN112281641B (en) | Grid damping support | |
| CN110965458A (en) | Plane gear type bridge damping structure | |
| CN112942560A (en) | Structure is built to antidetonation room | |
| CN211472138U (en) | Gear type bridge damping structure | |
| CA2361745A1 (en) | Rail pad and method for strain attenuation | |
| CN211446566U (en) | Single-pulley type bridge damping structure | |
| CN213114674U (en) | Side slope protective structure for abandoned mine | |
| CN112377211A (en) | A shock attenuation protection system and tunnel for tunnel | |
| CN211341853U (en) | Building engineering safety device | |
| CN211472136U (en) | Pulley type bridge damping structure | |
| CN216919986U (en) | Vertical elastic structure and vertical elastic support | |
| CN110847016A (en) | Gear type bridge damping structure | |
| CN110847017B (en) | Single pulley type bridge shock absorbing structure | |
| CN111963626B (en) | Three-way special-shaped metal damper | |
| CN211446565U (en) | Shock-absorbing structure based on bridge pad stone | |
| CN207295452U (en) | A kind of bridge crash barrier | |
| CN110894706B (en) | Pulley type bridge damping structure | |
| CN210086037U (en) | Novel support shock insulation structure | |
| CN210712532U (en) | Two-way post-earthquake self-resetting seismic mitigation and isolation support | |
| CN113983121A (en) | A self-reset bridge shock absorption device based on buckling restraint bellows and its manufacturing method | |
| CN220577073U (en) | Novel fill electric pile appearance structure | |
| CN223103475U (en) | Shock attenuation cable saddle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |