CN113062209A - Prestressing force buffering power consumption bridge vibration isolation support - Google Patents
Prestressing force buffering power consumption bridge vibration isolation support Download PDFInfo
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- CN113062209A CN113062209A CN202110335698.2A CN202110335698A CN113062209A CN 113062209 A CN113062209 A CN 113062209A CN 202110335698 A CN202110335698 A CN 202110335698A CN 113062209 A CN113062209 A CN 113062209A
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- prestressed
- energy
- vibration isolation
- buffering energy
- bridge vibration
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- 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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a prestressed buffering energy-consumption bridge vibration isolation support, and belongs to the technical field of bridge construction. The prestress buffering energy-consumption bridge vibration isolation support comprises a buffering energy-consumption component, the buffering energy-consumption component comprises a rotating shaft, a rotating connector is arranged above the rotating shaft, a roller device is arranged above the rotating connector, and a sliding roller is arranged on the roller device; a linear steel shaft is arranged below the rotating shaft; a shaft of the rotating shaft is provided with a limiting clamping plate, and a prestressed steel strand is fixed inside the limiting clamping plate; an upper supporting plate is connected above the buffering energy consumption component, and a sliding plate is arranged above the upper supporting plate; the lower supporting plate is connected below the buffering energy consumption component. The prestressed steel strand can provide stress required by the support for recovering, resists damage of aftershock, can resist translation and rotation in the horizontal direction, has enough energy consumption capability, has a good self-resetting function after the earthquake, and can effectively consume earthquake energy.
Description
Technical Field
The invention relates to a prestressed buffering energy-consumption bridge vibration isolation support, and belongs to the technical field of bridge construction.
Background
The bridge support is an important structural component for connecting an upper structure and a lower structure of a bridge, can transmit load and deformation borne by the upper structure of the bridge to the lower structure of the bridge, and is an important supporting device and a force transmission device of the bridge. In recent years, earthquake and wind disaster seriously threaten the survival and development of human beings, and have severe test on the stability and the firmness of the bridge support. The traditional bridge anti-seismic wind-resistant support improves the anti-seismic wind-resistant capability of the structure by improving the structural rigidity, strength and ductility, but the anti-seismic wind-resistant effect is not ideal, and the stress applied to the bridge cannot be effectively eliminated when an earthquake and a wind disaster arrive, so that the bridge support is deformed and even damaged seriously. And traditional bridge vibration isolation bearing can't control wind vibration and the earthquake of equidirectional not to traditional vibration isolation bearing mostly does not do the influence of considering the aftershock, and traditional bridge bearing can produce great residual displacement under the effect of aftershock and lead to shaking the back and reset the difficulty.
Patent publication No. CN104047227B discloses a pin-connected panel bridge shock absorption support, but it satisfies the needs that the displacement warp through setting up damping spring simply, and this just leads to when the medium and large-scale earthquake and wind vibration appear, and the support shock attenuation effect is not good, and the vibration isolation is poor, and great displacement warp can make the support will take place deformation, serious even appear destroying.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
The technical problem to be solved by the invention is as follows: traditional bridge beam supports shock attenuation effect is not good, and the vibration isolation is poor, can not resist great displacement and warp to can produce great residual displacement and lead to shaking the back difficulty of reseing.
[ technical solution ] A
In order to solve the technical problems, the invention provides a prestressed buffering energy-consumption bridge vibration isolation support which can control wind vibration and earthquake from different directions, change large displacement deformation into a corner, distribute the corner to a plurality of energy-consumption components for energy consumption, and has enough energy consumption capacity and good self-resetting function after the earthquake.
The prestress buffering energy-consumption bridge vibration isolation support comprises a buffering energy-consumption member 4, wherein the buffering energy-consumption member 4 comprises a rotating shaft 14, a rotating connector 12 is arranged above the rotating shaft 14, a roller device 11 is arranged above the rotating connector 12, and a sliding roller is arranged on the roller device 11; a linear steel shaft 16 is arranged below the rotating shaft 14; a limiting clamp plate 15 is arranged on the shaft of the rotating shaft 14, and a prestressed steel strand 13 is fixed inside the limiting clamp plate 15; an upper supporting plate 2 is connected above the buffering energy consumption component 4, and a sliding plate 1 is arranged above the upper supporting plate 2; the lower support plate 3 is connected below the buffering energy consumption component 4.
Further, the upper support plate 2 is clamped on the rotary connector 12 of the energy-dissipating member 4.
Further, a sleeve 9 is arranged at the central position of the sliding plate 1; the lower surface of the pulley plate 1 is fixed with a slide rail 10.
Further, the sliding rollers of the roller devices 11 are embedded in the sliding tracks 10, and the number of the sliding tracks 10 is the same as that of the roller devices 11.
Further, bolt holes 7 are formed in the sliding plate 1 and the lower supporting plate 3, and the bolt holes 7 are used for fixing the sliding plate 1 and a building above the prestress buffering energy-consumption bridge vibration isolation support through bolts; the bolt holes 7 are used for fixing the lower supporting plate 3 and a building below the prestress buffering energy-consumption bridge vibration isolation support through bolts.
Further, go up backup pad 2 and be equipped with polytetrafluoroethylene support 5, polytetrafluoroethylene support 5 fixes in sleeve 9, and leaves the clearance between with sleeve 9.
Furthermore, all be equipped with prestressing force steel strand wires fixed orifices 6 on going up backup pad 2 and the bottom suspension fagging 3, prestressing force steel strand wires 13 are fixed on prestressing force steel strand wires fixed orifices 6.
Furthermore, a limiting clamping groove 8 is further formed in the lower supporting plate 3.
Furthermore, the linear steel shaft 16 is fixed inside the limiting clamping groove 8, and the limiting clamping groove 8 and the linear steel shaft 16 are the same in number.
Further, the prestressed steel strand 13 is formed by twisting high-strength steel wires.
[ advantageous effects ]
1. According to the invention, the rotating shaft is provided with the prestressed steel strand which is formed by twisting high-strength steel wires, so that the stability of the support is greatly improved, the stress required by the support recovery can be provided, the prestressed steel strand can be repeatedly tensioned in the elastic stage, and the damage of the subsequent aftershock can be resisted. And the prestressed steel strand is simple to replace, and the production process is mature.
2. The rolling device is arranged on the rotating shaft, the sliding plate is provided with the sliding rail, the rolling device on the rotating shaft can slide on the sliding rail, the design enables the support to resist vertical vibration and horizontal vibration simultaneously under the action of earthquakes with different strengths, the support has enough energy consumption capacity, earthquake energy can be effectively consumed, large displacement deformation at the connecting part is converted into a corner of the rotating shaft, and the vibration energy is distributed to a plurality of parts of energy consumption components for energy consumption.
3. The sliding plate arranged in the invention cannot generate excessive deformation under the limitation of the polytetrafluoroethylene support, so that the rotating shaft can continuously consume energy, thereby providing stronger shock absorption capacity.
4. The rolling device and the rotating shaft arranged in the invention can move in parallel and rotate, can resist translation and rotation in the horizontal direction, have enough energy consumption capability and good self-resetting function after earthquake, can effectively consume earthquake energy, and can provide stable and effective damping and shock absorption protection effects for the main structure under the earthquake action.
Drawings
FIG. 1 is a schematic structural diagram of a buffering energy-consuming member according to the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a top view of the present invention with the slide plate removed;
FIG. 4 is a top view of the lower support plate of the present invention;
fig. 5 is a bottom view of the slide plate of the present invention.
In the figure, 1, a sliding plate; 2. an upper support plate; 3. a lower support plate; 4. a buffering energy-consuming member; 5. a polytetrafluoroethylene support; 6. a prestressed steel strand fixing hole; 7. bolt holes; 8. a limiting clamping groove; 9. a sleeve; 10. a slide rail; 11. a roller device; 12. a rotary connector; 13. pre-stressed steel strands; 14. a rotating shaft; 15. a limiting clamp plate; 16. a straight steel shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the prestressed buffering energy-consuming bridge vibration isolation support comprises a buffering energy-consuming member 4, wherein the buffering energy-consuming member 4 comprises a rotating shaft 14, a rotating connector 12 is arranged above the rotating shaft 14, the rotating connector 12 can rotate by 360 degrees, a roller device 11 is arranged above the rotating connector 12, the cross section of the roller device 11 is i-shaped, and two sets of sliding rollers are arranged on the side surface of the roller device 11; a linear steel shaft 16 is arranged below the rotating shaft 14; the shaft surface of pivot 14 is equipped with at least one spacing splint 15, the inside of spacing splint 15 is fixed with vertical vertically prestressing steel strand wires 13, prestressing steel strand wires 13 are twisted by the high strength steel wire and are formed.
As shown in fig. 2, an upper support plate 2 is arranged above the energy-consuming buffer member 4, and the upper support plate 2 is clamped on a rotary connector 12 of the energy-consuming buffer member 4; a sliding plate 1 is arranged above the upper supporting plate 2, as shown in fig. 5, fig. 5 is a bottom view of the sliding plate 1, a bolt hole 7 is arranged on the sliding plate 1, and the bolt hole 7 fixes the sliding plate 1 and a building above the prestress buffering energy-consuming bridge vibration isolation support through a bolt; a sleeve 9 is arranged at the central position of the sliding plate 1; the lower surface of the pulley plate 1 is fixed with a slide rail 10. The slide rail 10 is connected with the roller device 11 of the energy dissipation member 4, two sets of rollers of the roller device 11 are embedded in the slide rail 10 and can slide on the slide rail 10, and the number of the slide rail 10 is the same as that of the roller device 11.
As shown in fig. 3 or 4, all be equipped with prestressing steel strand wires fixed orifices 6 on upper support plate 2 and the bottom suspension fagging 3, prestressing steel strand wires 13 are fixed on prestressing steel strand wires fixed orifices 6, and prestressing steel strand wires fixed orifices 6 are used for fixed prestressing steel strand wires 13. Go up 2 central point of backup pad and put and be equipped with polytetrafluoroethylene support 5, polytetrafluoroethylene support 5 fixes in sleeve 9, and leaves the clearance between sleeve 9, the clearance is the support level to maximum displacement. The lower supporting plate 3 is provided with a bolt hole 7 and a limiting clamping groove 8, and the bolt hole 7 fixes the lower supporting plate 3 and a building below the prestress buffering energy-consumption bridge vibration isolation support through a bolt; the limiting clamping groove 8 is used for limiting the rotation of the linear steel shaft 16 of the buffering energy consumption component 4, when the rotating shaft 14 rotates for a certain angle, the linear steel shaft 16 below the rotating shaft 14 is fixed by the limiting clamping groove, and the rotating shaft 14 does not rotate any more.
The working process of the embodiment is as follows: when a building above the bridge support vibrates to generate displacement deformation, the sliding plate 1 fixedly connected with the building can move along with the building above the bridge support, the roller device 11 slides on the sliding rail 10 under the driving of the sliding plate 1, meanwhile, the rotating shaft 14 of the buffering energy consumption component 4 rotates along with the sliding plate, and the prestressed steel strands 13 on the rotating shaft 14 block the rotating shaft 14 to rotate so as to consume energy. The prestress steel strand 13 greatly improves the stability of the support, can provide stress required for recovering the support, and can repeatedly stretch in the elastic stage of the prestress steel strand 13 to resist the damage of subsequent aftershocks. And the prestressed steel strand 13 is simple to replace, the production process is mature, the stress which can be resisted by the prestressed steel strand can be accurately calculated, and the number and the arrangement of the steel strand can be adjusted through calculation.
When small impact force in the horizontal direction is received, the sliding plate 1 with small horizontal rigidity displaces, the sliding rail 10 on the sliding plate 1 drives the roller device 11 to rotate, the roller device 11 drives the rotating shaft 14 to rotate, the limiting clamping plate 15 on the rotating shaft 14 is resisted by the prestressed steel strand 13, and the displacement of the sliding plate 1 can be reset. When receiving the great impact force of horizontal direction, support upper portion building produces great displacement, and horizontal effort transmits for prestressing steel strand 13 via buffering power consumption component 4, and prestressing steel strand 13 consumes energy, and simultaneously, when pivot 14 rotated certain angle, its lower part style of calligraphy steel shaft 16 will be fixed by spacing draw-in groove 8 that sets up on the bottom suspension fagging 3, and prestressing steel strand 13 can last the power consumption, and simultaneously, provides further power consumption ability through the plastic deformation of pivot 14 to provide stronger shock-absorbing capacity. When the impact force in the vertical direction is small, the support can automatically reset under the action of the polytetrafluoroethylene support 5. When receiving the great impact force of vertical direction, the impact force transmits for last backup pad 2, distributes for pivot 14 and polytetrafluoroethylene support 5, under pivot 14 and polytetrafluoroethylene support 5's common atress, can bear great impact force, makes bridge beam supports also can play the cushioning effect when the earthquake of great magnitude.
The scope of the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. that can be made by those skilled in the art within the spirit and principle of the inventive concept should be included in the scope of the present invention.
Claims (10)
1. The prestressed buffering energy-consumption bridge vibration isolation support is characterized by comprising a buffering energy-consumption member (4), wherein the buffering energy-consumption member (4) comprises a rotating shaft (14), a rotating connector (12) is arranged above the rotating shaft (14), a roller device (11) is arranged above the rotating connector (12), and a sliding roller is arranged on the roller device (11); a straight steel shaft (16) is arranged below the rotating shaft (14); a limiting clamping plate (15) is arranged on the shaft of the rotating shaft (14), and a prestressed steel strand (13) is fixed inside the limiting clamping plate (15); an upper supporting plate (2) is connected above the buffering energy consumption component (4), and a sliding plate (1) is arranged above the upper supporting plate (2); the lower part of the buffering energy consumption component (4) is connected with a lower supporting plate (3).
2. The prestressed energy-absorbing bridge vibration isolation bearing according to claim 1, wherein the upper supporting plate (2) is clamped on the rotary connector (12) of the energy-absorbing member (4).
3. The prestressed, energy-buffering and energy-consuming bridge vibration-isolating support according to claim 2, wherein a sleeve (9) is arranged at the center of the sliding plate (1); the lower surface of the pulley plate (1) is fixed with a slide rail (10).
4. The prestressed, energy-buffering and energy-consuming bridge vibration isolation bearing according to claim 3, wherein the sliding rollers of the roller devices (11) are embedded in the sliding rails (10), and the number of the sliding rails (10) is the same as that of the roller devices (11).
5. The prestressed buffering energy-consuming bridge vibration isolation support according to claim 4, wherein bolt holes (7) are formed in the sliding plate (1) and the lower support plate (3), and the bolt holes (7) are used for fixing the sliding plate (1) and a building above the prestressed buffering energy-consuming bridge vibration isolation support through bolts; the bolt holes (7) are used for fixing the lower supporting plate (3) and a building below the prestress buffering energy-consumption bridge vibration isolation support through bolts.
6. The prestressed buffering energy-consuming bridge vibration isolation bearing according to claim 3, wherein the upper supporting plate (2) is provided with a polytetrafluoroethylene bearing (5), the polytetrafluoroethylene bearing (5) is fixed in the sleeve (9), and a gap is reserved between the polytetrafluoroethylene bearing and the sleeve (9).
7. The prestressed buffering energy-consuming bridge vibration-isolating support seat according to any one of claims 1 to 6, wherein prestressed steel strand fixing holes (6) are formed in the upper supporting plate (2) and the lower supporting plate (3), and the prestressed steel strands (13) are fixed to the prestressed steel strand fixing holes (6).
8. The prestressed buffering energy-consuming bridge vibration isolation bearing according to claim 1, wherein a limiting clamping groove (8) is further arranged on the lower supporting plate (3).
9. The prestressed buffering energy-consuming bridge vibration isolation bearing according to claim 8, wherein the straight steel shaft 16 is fixed inside the limiting clamping groove (8), and the number of the limiting clamping groove (8) and the number of the straight steel shaft 16 are the same.
10. The prestressed energy-absorbing bridge vibration-isolating support according to claim 1, wherein the prestressed steel strands (13) are twisted from high-strength steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335698.2A CN113062209B (en) | 2021-03-29 | 2021-03-29 | Prestressing force buffering power consumption bridge vibration isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110335698.2A CN113062209B (en) | 2021-03-29 | 2021-03-29 | Prestressing force buffering power consumption bridge vibration isolation support |
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| Publication Number | Publication Date |
|---|---|
| CN113062209A true CN113062209A (en) | 2021-07-02 |
| CN113062209B CN113062209B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110335698.2A Active CN113062209B (en) | 2021-03-29 | 2021-03-29 | Prestressing force buffering power consumption bridge vibration isolation support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232458A (en) * | 2021-11-17 | 2022-03-25 | 洛阳双瑞特种装备有限公司 | Combined movement type damping tenon structure |
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| CN112195764A (en) * | 2020-09-30 | 2021-01-08 | 南昌大学 | Self-resetting sliding rotary friction energy dissipation and shock absorption support |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201530991U (en) * | 2009-11-09 | 2010-07-21 | 同济大学 | Cable damping bearing |
| CN201778394U (en) * | 2010-03-22 | 2011-03-30 | 北京工业大学 | Prestress rubber support seat |
| KR20120048082A (en) * | 2010-11-05 | 2012-05-15 | 강용우 | Supporting device for bridge having function of controlling uplift force |
| CN102425244A (en) * | 2011-10-19 | 2012-04-25 | 沈阳建筑大学 | Multidirectional multi-frequency tuned mass damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232458A (en) * | 2021-11-17 | 2022-03-25 | 洛阳双瑞特种装备有限公司 | Combined movement type damping tenon structure |
| CN114232458B (en) * | 2021-11-17 | 2024-01-30 | 中船双瑞(洛阳)特种装备股份有限公司 | Combined movement type damping tenon structure |
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| Publication number | Publication date |
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| CN113062209B (en) | 2022-03-15 |
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