Buffering energy-consumption type bridge anti-seismic stop block capable of rotating along bridge direction
Technical Field
The utility model belongs to the technical design field of the bridge antidetonation, concretely relates to buffering power consumption type bridge antidetonation dog is rotated in same direction as bridge.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a buffering power consumption type bridge antidetonation dog is rotated to bridge direction, this kind of antidetonation dog can restrict the too big displacement of bridge direction between the roof beam body and the pier, prevent to take place the roof beam phenomenon, rely on buffering power consumption device's compression and tensile deformation buffering and consume the energy of some earthquake input, the energy of absorbing the earthquake is out of shape with the collision of collision rubber through torsion spring's torsional deformation, reduce the damage degree of bridge as far as, and after the earthquake along with buffering power consumption device and torsion spring's restoration effect reinforcing, the dog can reset to original form and continue work.
In order to realize the above-mentioned purpose, the utility model discloses a buffering power consumption type bridge antidetonation dog is rotated in same direction as bridge, including steel corbel, rotating member, buffering power consumption device, steel baffle and collision rubber, the steel corbel passes through steel corbel bolt fastening in pier lateral wall top, the rotating member passes through the bottom of rotating hinged-support fixed mounting at the girder, buffering power consumption device fixed connection is in the inside both sides of rotating member, steel baffle passes through steel baffle bolt fixed mounting on steel corbel upper portion, steel baffle is located the rotating member both sides, collision rubber fixed connection is in the outside both sides of rotating member.
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 beneficial effects of the utility model are 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 utility model discloses simple structure, the preparation is simple and convenient, and the antidetonation is respond well.
Drawings
FIG. 1 is a schematic view of the forward direction structure of the present invention;
FIG. 2 is a schematic view of the overall arrangement of the present invention along the direction of the bridge;
fig. 3 is a schematic view 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 view of the buffering energy dissipation device of 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 to make the objects, technical means and functions of the present invention 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 and exemplary embodiments of the present invention, and it is understood that various changes, modifications, substitutions and improvements may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.