CN112267371A - Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure - Google Patents
Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure Download PDFInfo
- Publication number
- CN112267371A CN112267371A CN202010947531.7A CN202010947531A CN112267371A CN 112267371 A CN112267371 A CN 112267371A CN 202010947531 A CN202010947531 A CN 202010947531A CN 112267371 A CN112267371 A CN 112267371A
- Authority
- CN
- China
- Prior art keywords
- saw
- steel
- plate
- steel bracket
- fixed
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge earthquake resistance, in particular to a saw-type gear rotation buffering energy-consumption type earthquake-resistant stop block structure which comprises a steel corbel, a steel stop block, an upper fixing plate, a trapezoidal connecting block, a curved connecting block and a saw-type gear, wherein the steel corbel is fixed above the side wall of a pier through a steel corbel bolt; the two hinged supports are fixed at the tops of the steel corbels, the saw-shaped gear is arranged at the top end of the rotating plate, and the rotating plate is hinged with the hinged supports; the curved surface connecting block passes through the bottom that the upper fixed plate is fixed in the girder, two the steel dog is fixed in the both ends of curved surface connecting block, the cross section of curved surface connecting block roughly is isosceles triangle structure, form on its two hypotenuses with sawtooth wheel matching meshing. The invention can effectively buffer energy consumption, limit the large-amplitude displacement of the beam body and reduce the damage of the stop block.
Description
Technical Field
The invention relates to the technical field of bridge earthquake resistance, in particular to a saw-shaped gear rotation buffering energy-consumption type earthquake-resistant stop block structure.
Technical Field
The damage form of the earthquake to the bridge mainly comprises support damage, beam falling damage, pier body pile foundation damage, collision damage between beam bodies and the like, and hidden dangers are left for the life safety of people due to the damage. The earthquake action not only easily causes the serious damage of piers, foundations and the like, but also easily causes the damage of earthquake-resistant stop blocks and supports, and can be observed frequently in earthquake disaster data in the past year.
Aiming at the defects, a novel bridge anti-seismic stop block structure needs to be designed and developed, so that the energy consumption can be effectively buffered when an earthquake occurs, and the self damage of the stop block is reduced while the beam body is limited to be greatly displaced.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a saw-shaped gear wheel rotation buffering energy-consumption type anti-seismic stop block structure which limits overlarge displacement of a bridge and a pier and avoids the phenomenon of beam falling; the rubber stop block is added to convert the rigid collision between the beam body and the stop block into flexible collision, and part of seismic energy is consumed by the gravity of the saw-shaped gear acting and the friction between the saw-shaped gear and the curved connecting block; thereby dispersing collision position and reducing impact force to the stop block structure, reducing damage of the stop block structure and protecting the device per se
In order to realize the purpose of the invention, the invention adopts the technical scheme that:
the invention discloses a saw-type gear rotation buffering energy-consumption anti-seismic stop block structure which comprises a steel corbel, a steel stop block, an upper fixing plate, a trapezoidal connecting block, a curved surface connecting block and a saw-type gear, wherein the steel corbel is fixed above the side wall of a pier through a steel corbel bolt; the two hinged supports are fixed at the tops of the steel corbels, the saw-shaped gear is arranged at the top end of the rotating plate, and the rotating plate is hinged with the hinged supports; the curved surface connecting block passes through the bottom that the upper fixed plate is fixed in the girder, two the steel dog is fixed in the both ends of curved surface connecting block, the cross section of curved surface connecting block roughly is isosceles triangle structure, form on its two hypotenuses with sawtooth wheel matching meshing.
The steel bracket includes steel bracket roof, steel bracket bottom plate, steel bracket interior plate, steel bracket web, be equipped with the bolt hole that is used for the steel bracket bolt to pass on the steel bracket interior plate: the steel bracket top plate and the steel bracket bottom plate are horizontally arranged, and two parallel steel bracket webs are welded between the steel bracket top plate and the steel bracket bottom plate in a numerical welding mode; the outer wall of the inner side plate of the steel bracket is respectively connected with one side of the steel bracket top plate, one side of the steel bracket bottom plate and one side of the steel bracket web plate.
The steel corbel top plate is welded with the lower fixing plate, the bottom surface of the trapezoidal connecting block is fixedly connected with the top of the lower fixing plate, waist surfaces on two sides of the trapezoidal connecting block are fixedly connected with the curved rubber stop blocks, and the curved rubber stop blocks are in contact with the outer wall of the rotating plate.
The upper fixing plate is horizontally arranged and fixed at the bottom of the main beam, the bottom of the steel baffle block is fixed on the upper fixing plate through a lower bottom plate, and a threaded hole for a steel baffle bolt to penetrate through is formed in the lower bottom plate; and a layer of rubber pad is fixed on the inner side of the steel baffle.
The two bevel edges of the curved surface connecting block are concave curved surfaces, the curved surface part of the curved surface connecting block is a rack which is matched and meshed with the sawtooth-shaped gear, the sawtooth-shaped gear is of a cylindrical structure, and sawteeth which can be attached to the rack to rotate are formed on the outer wall of the sawtooth-shaped gear.
The novel friction plate is characterized in that a semi-cylindrical pin head is arranged at the bottom of the rotating plate, a first through hole for the hinged support to pass through is formed in the axis of the semi-cylindrical pin head, cuboid pin heads are arranged on two sides of the top of the rotating plate, a friction rod is arranged on each of the cuboid pin heads and penetrates through a second through hole, and a third through hole for the friction rod to pass through is formed in the sawtooth gear.
And external threads matched with the screw caps are arranged at two ends of the friction rod, and the friction rod is fixedly penetrated through the second through hole in the rectangular pin head and the third through hole in the saw-shaped gear through the screw caps.
A bridge movable support is arranged between the main beam and the bridge pier, a bridge fixed support is arranged between the bridge pier and the second main beam, and an expansion joint is formed between the main beam and the second main beam.
The invention has the beneficial effects that:
1) the invention effectively buffers and dissipates the earthquake energy, and reduces the earthquake damage of the movable support and the expansion joint; the curved surface part of the curved surface connecting block is a saw-shaped wave surface and is tightly attached to the saw-shaped gear. When earthquake occurs, the saw-shaped gear on one side rolls upwards along the curved surface, and the friction work of the saw-shaped gear consumes a part of earthquake energy;
2) the invention limits relatively large displacement between the bridge body and the bridge pier, prevents the bridge body from falling and damaging, and flexibly collides the rotating plate with the curved rubber stop block, the saw-shaped gear and the rubber pad on the inner side of the steel baffle plate, consumes earthquake energy, thereby limiting the displacement of the bridge;
3) the invention has the advantages of simple structure, convenient construction, good anti-seismic effect and the like.
Drawings
FIG. 1 is a schematic representation of a forward bridge structure of the present invention;
FIG. 2 is a schematic representation of the forward bridge arrangement of the present invention;
FIG. 3 is a transverse bridging layout of the present invention;
FIG. 4 is a view showing a construction of a connection of the pivotal plates according to the present invention;
FIG. 5 is a diagram of a friction bar construction of the present invention.
In the figure: 1 steel bracket, 2 steel bracket roof, 3 hinged supports, 4 rotor plates, 5 steel baffle plates, 6 steel baffle plate bolts, 7 steel bracket bolts, 8 trapezoidal connecting blocks, 9 lower fixing plates, 10 steel bracket bottom plates, 11 rubber pads, 12 saw-type gears, 13 curved rubber check blocks, 14 upper fixing plates, 15 curved connecting blocks, 16 steel bracket webs, 17 steel bracket inner side plates, 18 semi-cylindrical pin heads, 19 cuboid pin heads, 20 main beams, 21 piers, 22 bridge movable supports, 23 second main beams, 24 bridge fixed supports, 25 first through holes, 26 third through holes, 27 second through holes, 28 friction bars, 29 nuts, 30 expansion joints and 31 lower bottom plates.
Detailed Description
The invention is further illustrated below
Please refer to fig. 1-5.
The invention discloses a saw-type gear rotation buffering energy-consumption anti-seismic stop block structure which comprises a steel corbel 1, a steel stop block 5, an upper fixing plate 14, a trapezoidal connecting block 8, a curved connecting block 15 and a saw-type gear 12, wherein the steel corbel 1 is fixed above the side wall of a pier 21 through a steel corbel bolt 7; the two hinged supports 3 are fixed at the top of the steel bracket 1, the saw-shaped gear 12 is arranged at the top end of the rotating plate 4, and the rotating plate 4 is hinged with the hinged supports 3; the curved surface connecting block 15 passes through the bottom that the upper fixed plate 14 is fixed in girder 20, two steel dog 5 is fixed in the both ends of curved surface connecting block 15, curved surface connecting block 15's cross section is the isosceles triangle structure roughly, form on its two hypotenuses with sawtooth area that sawtooth gear 12 matches the meshing.
Steel bracket 1 includes steel bracket roof 2, steel bracket bottom plate 10, steel bracket interior side plate 17, steel bracket web 16, be equipped with the bolt hole that is used for steel bracket bolt 7 to pass on the steel bracket interior side plate 17: the steel bracket top plate 2 and the steel bracket bottom plate 10 are horizontally arranged, and two parallel steel bracket webs 16 are welded between the two steel bracket top plates and the two steel bracket bottom plates; the outer wall of the inner side plate 17 of the steel bracket is respectively connected with one side of the top plate 2 of the steel bracket, the bottom plate 10 of the steel bracket and the web plate 16 of the steel bracket.
The upper fixing plate 14 is horizontally arranged and fixed at the bottom of the main beam 20, the bottom of the steel stopper 5 is fixed on the upper fixing plate 14 through a lower bottom plate 31, and a threaded hole for the steel baffle bolt 6 to pass through is formed in the lower bottom plate 31; and a layer of rubber pad 11 is fixed on the inner side of the steel baffle 5.
The two bevel edges of the curved surface connecting block 15 are concave curved surfaces, the curved surface part is a rack which is engaged with the saw-shaped gear 12 in a matching way, the saw-shaped gear 12 is of a cylindrical structure, and sawteeth which can be attached to the rack to rotate are formed on the outer wall of the saw-shaped gear.
The bottom of the rotating plate 4 is provided with a semi-cylindrical pin head 18, the axis of the semi-cylindrical pin head 18 is provided with a first through hole 25 through which the hinged support 3 passes, the two sides of the top of the rotating plate 4 are provided with cuboid pin heads 19, the rectangular pin heads 19 are provided with second through holes 27 through which friction rods 28 pass, and the sawtooth gear 12 is provided with third through holes 26 through which the friction rods 28 pass.
The friction bar 28 is provided with external threads at both ends thereof, which are matched with nuts 29, and the friction bar 28 is fixed through the second through hole 27 on the rectangular tip 19 and the third through hole 26 on the saw-type gear 12 by the nuts 29.
A bridge movable support 22 is arranged between the main beam 20 and the pier 21, a bridge fixed support 24 is arranged between the pier 21 and the second main beam 23, and an expansion joint 30 is formed between the main beam 20 and the second main beam 23.
The working principle is as follows: under the condition of no earthquake, the rotating plate 4 is obliquely arranged, the rack of the curved surface connecting block 15 is tightly attached to the outer saw teeth of the saw-shaped gear 12, and the rubber pad 11 and the curved rubber stopper 13 are not deformed in a natural state; under the action of an earthquake, the main beam 20 and the pier 21 are relatively displaced, on one hand, the saw-shaped gear 12 on one side rotates upwards to work by means of friction between the saw-shaped gear and the curved connecting block 15 to consume earthquake energy, on the other hand, the rotating plate 4 on the other side collides with the curved rubber stopper 13 and the saw-shaped gear 12 collides with the rubber pad 11, and the earthquake energy is consumed by means of energy generated by plastic deformation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (8)
1. The utility model provides a sawtooth gear rotates buffering power consumption type antidetonation dog structure which characterized in that: the steel bracket comprises a steel bracket (1), a steel stop block (5), an upper fixing plate (14), a trapezoidal connecting block (8), a curved surface connecting block (15) and a saw-shaped gear (12), wherein the steel bracket (1) is fixed above the side wall of a pier (21) through a steel bracket bolt (7); the two hinged supports (3) are fixed at the top of the steel bracket (1), the saw-shaped gear (12) is arranged at the top end of the rotating plate (4), and the rotating plate (4) is hinged with the hinged supports (3); curved surface connecting block (15) pass through upper fixed plate (14) are fixed in the bottom of girder (20), two steel dog (5) are fixed in the both ends of curved surface connecting block (15), the cross section of curved surface connecting block (15) is the isosceles triangle structure roughly, form on its two hypotenuses with sawtooth area that saw type gear (12) match the meshing.
2. The structure of a saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block according to claim 1, wherein: steel bracket (1) includes steel bracket roof (2), steel bracket bottom plate (10), steel bracket interior plate (17), steel bracket web (16), be equipped with the bolt hole that is used for steel bracket bolt (7) to pass on steel bracket interior plate (17): the steel corbel top plate (2) and the steel corbel bottom plate (10) are horizontally arranged, and two parallel steel corbel web plates (16) are welded between the steel corbel top plate and the steel corbel bottom plate in a numerical welding mode; the outer wall of the inner side plate (17) of the steel bracket is respectively connected with one side of the steel bracket top plate (2), the steel bracket bottom plate (10) and the steel bracket web plate (16).
3. The structure of the saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block as claimed in claim 2, wherein: steel corbel roof (2) and bottom plate (9) welding, trapezoidal connecting block (8) bottom surface with the top fixed connection of bottom plate (9), its both sides wainscot and bent type rubber dog (13) fixed connection, bent type rubber dog (13) with the outer wall contact of rotor plate (4).
4. The structure of a saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block according to claim 1, wherein: the upper fixing plate (14) is horizontally arranged and fixed at the bottom of the main beam (20), the bottom of the steel stop block (5) is fixed on the upper fixing plate (14) through a lower bottom plate (31), and a threaded hole for the steel baffle bolt (6) to pass through is formed in the lower bottom plate (31); and a layer of rubber pad (11) is fixed on the inner side of the steel baffle (5).
5. The structure of a saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block according to claim 1, wherein: the two bevel edges of the curved surface connecting block (15) are concave curved surfaces, the curved surface part of the curved surface connecting block is a rack which is matched and meshed with the saw-shaped gear (12), the saw-shaped gear (12) is of a cylindrical structure, and saw teeth which can be attached to the rack to rotate are formed on the outer wall of the saw-shaped gear.
6. The structure of the saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block according to claim 5, wherein: the novel friction plate is characterized in that a semi-cylindrical pin head (18) is arranged at the bottom of the rotating plate (4), a first through hole (25) used for the hinged support (3) to penetrate through is formed in the axis of the semi-cylindrical pin head (18), cuboid pin heads (19) are arranged on two sides of the top of the rotating plate (4), a second through hole (27) used for the friction rod (28) to penetrate through is formed in each rectangular pin head (19), and a third through hole (26) used for the friction rod (28) to penetrate through is formed in each saw-shaped gear (12).
7. The structure of the saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block as claimed in claim 6, wherein: and external threads matched with the screw cap (29) are arranged at two ends of the friction rod (28), and the friction rod (28) is fixedly penetrated through the second through hole (27) on the rectangular pin head (19) and the third through hole (26) on the saw-shaped gear (12) through the screw cap (29).
8. The structure of a saw-type gear-wheel-rotation energy-dissipation type anti-seismic stop block according to claim 1, wherein: be equipped with bridge movable support (22) between girder (20) and pier (21), be equipped with bridge fixed bearing (24) between pier (21) and second girder (23), form expansion joint (30) between girder (20) and second girder (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010947531.7A CN112267371A (en) | 2020-09-10 | 2020-09-10 | Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010947531.7A CN112267371A (en) | 2020-09-10 | 2020-09-10 | Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112267371A true CN112267371A (en) | 2021-01-26 |
Family
ID=74348751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010947531.7A Pending CN112267371A (en) | 2020-09-10 | 2020-09-10 | Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112267371A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235752A (en) * | 2021-04-02 | 2021-08-10 | 河北工业大学 | Gear type energy consumption supporting structure, assembly type supporting frame system and construction method |
| CN113235751A (en) * | 2021-04-02 | 2021-08-10 | 河北工业大学 | Friction energy dissipation supporting structure, assembly type supporting frame system and construction method |
-
2020
- 2020-09-10 CN CN202010947531.7A patent/CN112267371A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235752A (en) * | 2021-04-02 | 2021-08-10 | 河北工业大学 | Gear type energy consumption supporting structure, assembly type supporting frame system and construction method |
| CN113235751A (en) * | 2021-04-02 | 2021-08-10 | 河北工业大学 | Friction energy dissipation supporting structure, assembly type supporting frame system and construction method |
| CN113235752B (en) * | 2021-04-02 | 2022-07-26 | 河北工业大学 | Gear type energy consumption supporting structure, assembly type supporting frame system and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112267371A (en) | Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure | |
| CN105256913B (en) | A kind of anti-buckling support of shape memory alloy twisted wire Self-resetting friction | |
| CN108951908B (en) | Frame shear wall structure with swing energy dissipation column | |
| CN103696498B (en) | Easily steel hetermorphiscal column-center support is repaired after a kind of shake | |
| CN112523376B (en) | Self-resetting composite energy dissipation support for expanding displacement by using gear and opening inhaul cable by using pulley | |
| CN204608592U (en) | A kind of bridge energy-dissipating and shock-absorbing anti-fall girder apparatus | |
| CN111441241A (en) | Bridge anti-seismic damper structure with rotational friction energy consumption | |
| CN113530335A (en) | Three-dimensional shock insulation support | |
| CN214783204U (en) | Saw-type gear wheel rotation buffering energy-consumption type anti-seismic stop block structure | |
| CN114263289A (en) | Anti-seismic component with energy consumption and bearing double functions and buffer | |
| CN212375703U (en) | Bridge anti-seismic damper structure with rotational friction energy consumption | |
| CN2900658Y (en) | Accentric support | |
| CN110331659A (en) | A kind of equipotential displacement bridge expansion joint installation | |
| CN113265939A (en) | Multi-friction damping energy dissipation reset anti-seismic stop block structure | |
| CN211006319U (en) | Spherical seismic mitigation and isolation support with built-in triangular mild steel | |
| CN210712520U (en) | Assembled buckling-restrained brace device for improving anti-seismic performance of bridge | |
| CN108643028B (en) | Bridge girder body anti-deviation device with pier protection function | |
| CN217105630U (en) | Anti-seismic component with energy consumption and bearing double functions and buffer | |
| CN212375690U (en) | Multiple damping buffering energy consumption type bridge anti-seismic stop block structure | |
| CN113265941A (en) | Anti-seismic stop block structure for limiting bidirectional movement of bridge | |
| CN111364348A (en) | Multiple damping buffering energy consumption type bridge anti-seismic stop block structure | |
| WO2023071327A1 (en) | Fabricated flexible damping screw anchor foundation and power transmission tower | |
| CN211228070U (en) | Columnar tooth type self-resetting energy-consumption bridge shock insulation support | |
| CN209368666U (en) | A kind of metal damp type girder falling vibration absorption and isolation support | |
| CN108843727B (en) | Detachable dentate friction plate type damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |