CN111827086A - Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction - Google Patents
Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction Download PDFInfo
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- CN111827086A CN111827086A CN202010638365.2A CN202010638365A CN111827086A CN 111827086 A CN111827086 A CN 111827086A CN 202010638365 A CN202010638365 A CN 202010638365A CN 111827086 A CN111827086 A CN 111827086A
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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
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Abstract
The invention discloses a buffering energy-consumption type bridge anti-seismic stop block rotating along a bridge direction, which comprises a steel corbel, a rotating component, a buffering energy-consumption device, a steel baffle and collision rubber, wherein the steel corbel is fixed above the side wall of a pier, the rotating component is fixedly arranged at the bottom of a main beam through a rotating hinged support, the buffering energy-consumption device is fixedly connected to two sides inside the rotating component, the steel baffle is fixedly arranged at the upper part of the steel corbel through a steel baffle bolt, and the steel baffle is positioned at two sides of the rotating component. The invention can limit the excessive displacement between the beam body and the bridge pier along the bridge direction, prevent the beam falling phenomenon, buffer and consume a part of earthquake input energy by the compression and tensile deformation of the energy consumption buffer device, absorb the earthquake energy by the torsional deformation of the torsion spring and the collision deformation of the collision rubber, reduce the damage degree of the bridge as much as possible, and the stop block can reset to the original shape along with the recovery action of the energy consumption buffer device and the torsion spring after the earthquake.
Description
Technical Field
The invention belongs to the field of bridge anti-seismic technical design, and particularly relates to a buffering energy-consumption type bridge anti-seismic stop block rotating along a bridge direction.
Background
In recent years, the bridge engineering technology in China is rapidly developed and gradually ascends into the world of the large bridge engineering technology. The bridge construction engineering is significant to social development and is a component of an important traffic system through which people depend on transportation. However, China is located among a plurality of earthquake zones and is a country with more earthquakes, and the earthquake occurrence in each time can seriously affect the economy of the country and the region. The bridge is used as a junction for transportation and traffic, is a life passage after an earthquake occurs, and if the bridge structure is seriously damaged due to the earthquake, such as separation of a beam body from a pier, support damage, beam falling and the like, the bridge not only can cause serious economic damage, but also more importantly influences the external rescue speed and threatens the life health safety of people in the earthquake. In order to avoid the occurrence of an event that a bridge is easy to collapse in the earthquake in China, reinforced concrete stop blocks are usually arranged on two sides of the top of a pier capping beam, so that the relative displacement on a transverse bridge of the bridge can be limited to a certain extent, but the stop blocks are easy to damage when being impacted, and have little restraint effect on the displacement along the bridge direction. The collapse prevention performance and the earthquake resistance performance of the bridge are improved from all aspects, and the energy input by an earthquake is consumed when the earthquake comes.
Based on the above, a novel bridge anti-seismic stop block is provided, namely the buffering energy-consumption type bridge anti-seismic stop block rotating along the bridge direction, so that the overlarge displacement along the bridge direction can be limited when an earthquake occurs, the phenomenon of beam falling is prevented, the energy input by the earthquake is consumed as much as possible, and the damage degree of the whole bridge is reduced.
Disclosure of Invention
The invention aims to provide a buffering energy-consumption type bridge anti-seismic stop block rotating along the bridge direction, which can limit the overlarge displacement between a beam body and a bridge pier along the bridge direction and prevent the beam falling phenomenon, the anti-seismic stop block buffers and consumes a part of energy input by earthquake by means of compression and tensile deformation of a buffering energy-consumption device, absorbs the energy of the earthquake by means of torsional deformation of a torsional spring and collision deformation of collision rubber, the damage degree of a bridge is reduced as much as possible, and the stop block can be restored to the original shape to continue working along with the enhancement of the restoring action of the buffering energy-consumption device and the torsional spring after the earthquake.
In order to achieve the purpose, the invention discloses a buffering energy-consumption type bridge anti-seismic stop block capable of rotating along the bridge direction, which comprises a steel corbel, a rotating component, a buffering energy-consumption device, steel baffles and collision rubber, wherein the steel corbel is fixed above the side wall of a pier through a steel corbel bolt, the rotating component is fixedly installed at the bottom of a main beam through a rotating hinged support, the buffering energy-consumption device is fixedly connected to two sides inside the rotating component, the steel baffles are fixedly installed on the upper portion of the steel corbel through steel baffle bolts, the steel baffles are located on two sides of the rotating component, and the collision rubber is fixedly connected to two sides outside the rotating component.
The steel bracket comprises a steel bracket top plate, a steel bracket side plate, a steel bracket web plate and a steel bracket bottom plate. The steel corbel curb plate is through a plurality of steel corbel bolt fixed connection at the pier lateral wall, steel corbel curb plate one side is located to steel corbel roof and steel corbel bottom plate level, and the steel corbel web of two parallels of vertical setting between the two, steel corbel web is connected in steel corbel curb plate one side.
The rotating component comprises a top plate, a rotating hinged support, a first vertical steel plate, a second vertical steel plate, a transverse steel plate and a torsion spring. The top plate is fixedly arranged at the lower part of the main beam through a top plate bolt, and the rotary hinged support is welded at the lower part of the top plate; the upper ends of the first vertical steel plate and the second vertical steel plate are respectively fixed with three upper pin heads at equal intervals, and the lower ends of the first vertical steel plate and the second vertical steel plate are respectively fixed with two lower pin heads; two groups of hole digging and hinging steel sheets are respectively fixed at two ends of the transverse steel plate; openings are formed in the lower ends of the first vertical steel plate and the second vertical steel plate and the two ends of the transverse steel plate, and the arm end of the torsion spring is inserted into the openings; the first vertical steel plate and the second vertical steel plate are hinged with the rotary hinged support through upper pin heads, and the transverse steel plate, the first vertical steel plate and the second vertical steel plate are hinged with the lower pin heads through hole digging hinge steel plates; and a certain gap is reserved between the two ends of the transverse steel plate and the lower ends of the first vertical steel plate and the second vertical steel plate so as to facilitate rotation.
Four groups of buffering energy dissipation devices are arranged between the first vertical steel plate, the second vertical steel plate and the transverse steel plate, each buffering energy dissipation device comprises a steel spring, a limiting rod and a rubber stop block, one end of each steel spring is connected to the transverse steel plate, the other end of each steel spring is connected with the middle of the inner wall of each first vertical steel plate and the middle of the inner wall of each second vertical steel plate, the limiting rods are sleeved in the steel springs (17), the bottom ends of the limiting rods are welded to the upper portions of the transverse steel plates, and the rubber stop blocks are arranged at the top ends of the limiting rods.
The steel baffle plate comprises a steel baffle plate bottom plate, steel baffle plate side plates and a steel baffle plate web plate. The steel baffle bottom plate is fixedly installed on the steel corbel top plate through a plurality of steel baffle bolts, the steel baffle curb plate is vertically fixed in steel baffle bottom plate upper surface edge the steel baffle bottom plate with be provided with a steel baffle web between the steel baffle curb plate, just the steel baffle web longitudinal section is triangle-shaped.
The collision rubber is arranged on the outer side walls of the first vertical steel plate and the second vertical steel plate, the longitudinal section of the collision rubber is in an arc shape, and the collision rubber is made of rubber materials with good collision buffering performance.
Compared with the prior art, the invention has the beneficial effects that:
1) the buffering energy consumption device is composed of a steel spring, a limiting rod and a rubber stop block, the steel spring can effectively buffer the force generated by rotation of the rotating component, the limiting rod can limit the rotating distance of the rotating component and the deformation distance of the steel spring, and the rubber stop block is arranged at the top end of the limiting rod to prevent the rotating component from being damaged due to collision with the limiting rod.
2) The rotating member is internally provided with a torsion spring, and when the rotating member rotates due to the displacement in the transverse bridge direction, the torsion spring can resist the rotation to a certain extent, and a part of earthquake input energy is consumed.
3) The collision rubber is made of rubber materials with good collision buffering performance, has good buffering effect in the collision process with the steel baffles on the two sides, can effectively consume earthquake energy, and limits the overlarge displacement of the bridge along the bridge direction.
4) The anti-seismic stop block has a certain reset function on the whole.
5) The invention has simple structure, simple and convenient manufacture and good anti-seismic effect.
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 overall arrangement of the present invention;
FIG. 3 is a schematic diagram of the overall three-dimensional structure of the present invention;
FIG. 4 is a schematic view of the structure of the rotating member of the present invention;
fig. 5 is a schematic structural diagram of the energy-dissipating buffer device according to the present invention.
In the figure: 1 steel corbel, 2 rotating members, 3 buffering energy dissipation devices, 4 steel baffles, 5 collision rubber, 6 top plates, 7 rotating hinged supports, 8 upper pin heads, 9 lower pin heads, 10 first vertical steel plates, 11 second vertical steel plates, 12 transverse steel plates, 14 top plate bolts, 15 hole digging and hinging steel plates, 16 openings, 17 steel springs, 18 limiting rods, 19 rubber stoppers, 20 steel baffle bottom plates, 21 steel baffle side plates, 22 steel baffle web plates, 23 steel baffle bolts, 24 steel corbel top plates, 25 steel corbel side plates, 26 steel corbel web plates, 27 steel corbel bottom plates, 28 steel corbel bolts, 29 piers, 30 main beams, 31 expansion joints, 32 second main beams, 33 movable bridge supports and 34 fixed bridge supports.
Detailed Description
In order that the objects, technical means and functions of the present invention may be more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, a buffering energy-consuming type bridge antidetonation dog is rotated along bridge direction, including steel corbel 1, rotating member 2, buffering energy-consuming device 3, steel baffle 4 and collision rubber 5, steel corbel 1 passes through steel corbel bolt 28 to be fixed in pier 29 lateral wall top, rotating member 2 is through rotating hinged-support 7 fixed mounting in the bottom of girder 30, buffering energy-consuming device 3 fixed connection is in the inside both sides of rotating member 2, steel baffle 4 passes through steel baffle bolt 23 fixed mounting on 1 upper portion of steel corbel, steel baffle 4 is located rotating member 2 both sides, collision rubber 5 fixed connection is in the outside both sides of rotating member 2.
Specifically, the steel corbel 1 comprises a steel corbel top plate 24, a steel corbel side plate 25, a steel corbel web plate 26 and a steel corbel bottom plate 27. Steel corbel curb plate 25 is through a plurality of steel corbel bolt 28 fixed connection at 29 lateral walls of pier, steel corbel curb plate 25 one side is located to steel corbel roof 24 and steel corbel bottom plate 27 level, and the steel corbel web 26 of two parallels of vertical setting between the two, steel corbel web 26 is connected in steel corbel curb plate 25 one side.
The rotating member 2 comprises a top plate 6, a rotating hinge support 7, a first vertical steel plate 10, a second vertical steel plate 11, a transverse steel plate 12 and a torsion spring. The top plate 6 is fixedly arranged at the lower part of a main beam 30 through a top plate bolt 14, and the rotary hinge support 7 is welded at the lower part of the top plate 6; the upper ends of the first vertical steel plate 10 and the second vertical steel plate 11 are respectively fixed with three upper pin heads 8 at equal intervals, and the lower ends of the first vertical steel plate and the second vertical steel plate are respectively fixed with two lower pin heads 9; two groups of hole digging and hinging steel sheets 15 are respectively fixed at the two ends of the transverse steel plate 12; openings 16 are formed in the lower ends of the first vertical steel plate 10 and the second vertical steel plate 11 and the two ends of the transverse steel plate 12, arm ends of the torsion springs are inserted into the openings 16, and the torsion springs are twisted and deformed to consume part of earthquake energy when an earthquake occurs; the first vertical steel plate 10 and the second vertical steel plate 11 are hinged with the rotary hinge support 7 through six upper pin heads 8 so as to ensure that the connection between the main beam and the lower rotary member 2 is stable enough and the strength is large enough, and the transverse steel plate 12, the first vertical steel plate 10 and the second vertical steel plate 11 are hinged with the lower pin head 9 through hole digging hinge steel sheets 15; and a certain gap is reserved between the two ends of the transverse steel plate 12 and the lower ends of the first vertical steel plate 10 and the second vertical steel plate 11, so that the transverse steel plate 12 and the two vertical steel plates can rotate sufficiently.
Four groups of buffering energy dissipation devices 3 are arranged between the first vertical steel plate 10, the second vertical steel plate 11 and the transverse steel plate 12, each buffering energy dissipation device 3 comprises a steel spring 17, a limiting rod 18 and a rubber stop 19, one end of each steel spring 17 is connected to the transverse steel plate 12, the other end of each steel spring 17 is connected with the first vertical steel plate 10 and the second vertical steel plate 11, and the force generated by rotation of the rotating component is effectively buffered by means of elastic deformation; the limiting rod 18 is welded on the upper part of the transverse steel plate 12, and has a certain distance from the vertical steel plates at two sides, so that the effect of limiting the rotating distance and the deformation distance of the steel spring can be achieved; the rubber stopper 19 is arranged at the top end of the limiting rod 18, and can prevent the rotating component from being damaged due to collision with the limiting rod.
The steel baffle plate 4 comprises a steel baffle plate bottom plate 20, steel baffle plate side plates 21 and a steel baffle plate web plate 22. The steel baffle bottom plate 20 is fixedly mounted on a steel corbel top plate 24 through a plurality of steel baffle bolts 23, the vertical fixing of steel baffle curb plate 21 is in 20 upper surface edges of steel baffle bottom plate 20 with be provided with a steel baffle web 22 between the steel baffle curb plate 21, just steel baffle web 22 longitudinal section is triangle-shaped.
The collision rubber 5 is arranged outside the first vertical steel plate 10 and the second vertical steel plate 11, the longitudinal section of the collision rubber 5 is in an arc shape so as to meet the requirement of non-uniform collision with the steel baffle plate 4 in each direction, and the material used by the collision rubber 5 is a rubber material with good collision buffering performance, so that the energy input by earthquake can be efficiently buffered and consumed.
Preferably, the steel spring 17 and the torsion spring are made of spring steel with optimal quality, and the spring steel has the advantages of low frequency and large damping, and can efficiently resist the force of the earthquake action and consume the energy input by the earthquake.
The working principle is as follows: when an earthquake occurs, the energy input by the earthquake is transmitted upwards to the main beam 30 through the bridge pier 29, so that the main beam 30 and the bridge pier 29 of the bridge generate relative displacement along the bridge direction, and when the relative displacement exceeds the distance between the steel baffle 4 and the collision rubber 5, the steel baffle 4 collides with the collision rubber 5 to deform the collision rubber 5, so that a part of the energy input by the earthquake is consumed; when the relative displacement continues to occur, the rotating member 2 rotates, the two vertical steel plates and the transverse steel plate 12 rotate relatively, the buffering energy consumption device 3 is driven to generate elastic deformation, a part of earthquake energy can be buffered and consumed, and meanwhile, the torsion spring generates torsional deformation in the rotating process of the rotating member 2, so that the rotating action can be effectively resisted, and a part of earthquake energy is converted into elastic potential energy; after the earthquake is finished, the buffering energy consumption device 3, the torsion spring and the collision rubber 5 have certain resetting capability, and the stop block can be reset to the original form through slow recovery to continue working, so that the earthquake-resistant energy consumption device is practical.
The foregoing is considered as illustrative of the preferred embodiments of the present invention, and it is understood that various changes, modifications, substitutions, and improvements in the embodiments may be made therein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a follow bridge and rotate buffering power consumption type bridge antidetonation dog which characterized in that: including steel corbel (1), rotating member (2), buffering power consumption device (3), steel bezel (4) and collision rubber (5), steel corbel (1) is fixed in pier (29) lateral wall top through steel corbel bolt (28), rotating member (2) is through rotating hinged-support (7) fixed mounting in the bottom of girder (30), buffering power consumption device (3) fixed connection is in the inside both sides of rotating member (2), steel bezel (4) is through steel bezel bolt (23) fixed mounting at steel corbel (1) top, steel bezel (4) is located rotating member (2) both sides, collision rubber (5) fixed connection is in the outside both sides of rotating member (2).
2. The anti-seismic stop block for the buffering and energy dissipation type bridge capable of rotating along the bridge direction according to claim 1, wherein: the steel corbel (1) comprises a steel corbel top plate (24), a steel corbel side plate (25), a steel corbel web plate (26) and a steel corbel bottom plate (27); steel corbel curb plate (25) are through a plurality of steel corbel bolt (28) fixed connection at pier (29) lateral wall, steel corbel curb plate (25) one side is located to steel corbel roof (24) and steel corbel bottom plate (27) level, and vertical steel corbel web (26) that sets up two parallels between the two, steel corbel web (26) are connected in steel corbel curb plate (25) one side.
3. The anti-seismic stop block for the buffering and energy dissipation type bridge capable of rotating along the bridge direction according to claim 1, wherein: the rotating component (2) comprises a top plate (6), a rotating hinged support (7), a first vertical steel plate (10), a second vertical steel plate (11), a transverse steel plate (12) and a torsion spring; the top plate (6) is fixedly arranged at the lower part of the main beam (30) through a top plate bolt (14), and the rotary hinged support (7) is welded at the lower part of the top plate (6); the upper ends of the first vertical steel plate (10) and the second vertical steel plate (11) are respectively fixed with three upper pin heads (8) at equal intervals, and the lower ends of the first vertical steel plate and the second vertical steel plate are respectively fixed with two lower pin heads (9); two groups of hole digging and hinging steel sheets (15) are respectively fixed at the two ends of the transverse steel plate (12); openings (16) are formed in the lower ends of the first vertical steel plate (10) and the second vertical steel plate (11) and the two ends of the transverse steel plate (12), and the arm end of the torsion spring is inserted into the openings (16); the first vertical steel plate (10) and the second vertical steel plate (11) are hinged with the rotary hinged support (7) through upper pin heads (8), and the transverse steel plate (12), the first vertical steel plate (10) and the second vertical steel plate (11) are hinged with the lower pin heads (9) through hole digging hinge steel sheets (15); and a certain gap is reserved between the two ends of the transverse steel plate (12) and the lower ends of the first vertical steel plate (10) and the second vertical steel plate (11) for facilitating rotation.
4. The anti-seismic stop block for the buffering and energy dissipation type bridge capable of rotating along the bridge direction according to claim 3, wherein: four groups of buffering energy dissipation devices (3) are arranged between a first vertical steel plate (10) and a second vertical steel plate (11) and a transverse steel plate (12), each buffering energy dissipation device (3) comprises a steel spring (17), a limiting rod (18) and a rubber stop block (19), one end of each steel spring (17) is connected to the transverse steel plate (12), the other end of each steel spring is connected to the middle of the inner wall of the first vertical steel plate (10) and the inner wall of the second vertical steel plate (11), the limiting rods (18) are sleeved in the steel springs (17), the bottom ends of the limiting rods are welded to the upper portions of the transverse steel plates (12), and the rubber stop blocks (19) are arranged on the top ends of the limiting rods (18).
5. The anti-seismic stop block for the buffering and energy dissipation type bridge capable of rotating along the bridge direction according to claim 1, wherein: steel baffle (4) include steel baffle bottom plate (20), steel baffle curb plate (21) and steel baffle web (22), steel baffle bottom plate (20) are through a plurality of steel baffle bolts (23) fixed mounting on steel corbel roof (24), steel baffle curb plate (21) are vertical to be fixed in steel baffle bottom plate (20) upper surface edge steel baffle bottom plate (20) with be provided with a steel baffle web (22) between steel baffle curb plate (21), just steel baffle web (22) longitudinal section is triangle-shaped.
6. The anti-seismic stop block for the buffering and energy dissipation type bridge capable of rotating along the bridge direction according to claim 1, wherein: the collision rubber (5) is arranged on the outer side wall of the first vertical steel plate (10) and the second vertical steel plate (11), the longitudinal section of the collision rubber (5) is in the shape of an arc, and the used material of the collision rubber (5) is a rubber material with better collision buffering performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010638365.2A CN111827086A (en) | 2020-07-06 | 2020-07-06 | Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010638365.2A CN111827086A (en) | 2020-07-06 | 2020-07-06 | Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction |
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| Publication Number | Publication Date |
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| CN111827086A true CN111827086A (en) | 2020-10-27 |
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| CN202010638365.2A Pending CN111827086A (en) | 2020-07-06 | 2020-07-06 | Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351574A (en) * | 2021-12-31 | 2022-04-15 | 西安建筑科技大学 | Self-adaptive anti-seismic tough support |
-
2020
- 2020-07-06 CN CN202010638365.2A patent/CN111827086A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351574A (en) * | 2021-12-31 | 2022-04-15 | 西安建筑科技大学 | Self-adaptive anti-seismic tough support |
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