CN211006307U - Self-reset multidirectional limiting energy-consumption anti-seismic stop block structure - Google Patents

Self-reset multidirectional limiting energy-consumption anti-seismic stop block structure Download PDF

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CN211006307U
CN211006307U CN201921287002.8U CN201921287002U CN211006307U CN 211006307 U CN211006307 U CN 211006307U CN 201921287002 U CN201921287002 U CN 201921287002U CN 211006307 U CN211006307 U CN 211006307U
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stop block
stopper
plate
beam body
steel
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田钦
张越
彭雷雷
岳慧
邱瑞锋
谢英许
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Nanchang University
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Nanchang University
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Abstract

The utility model relates to a bridge antidetonation technical field especially relates to a from spacing power consumption antidetonation dog structure of restoring to throne multidirectionally, including the dog, the top edge fixed connection of its bottom and bent cap, the steelframe, it includes the steel sheet, the steel sheet be by set up in the diaphragm at dog top and set up in the "L" shape structure of the riser constitution of diaphragm bottom outer end, the riser with be equipped with damping spring between the lateral wall of dog, the inner of diaphragm and the side fixed connection of the roof beam body, the stopper, it set up in between dog and the roof beam body, the stopper is including being fixed in first stopper support on the dog inside wall, the second stopper support that is fixed in the roof beam body outside, the cover is equipped with stopper elastic belt between first, the second stopper support.

Description

Self-reset multidirectional limiting energy-consumption anti-seismic stop block structure
Technical Field
The utility model relates to a bridge antidetonation technical field especially relates to a from spacing power consumption antidetonation dog structure of restoring to throne multidirection.
Background
China is located between two earthquake zones in the world, namely the Pacific earthquake zone and the Eurasian earthquake zone, and earthquake fracture zones are very active under the extrusion of Pacific plates, Indian plates and Philippine sea plates. From the 80 s in the 20 th century, China enters a new earthquake active period, and the earthquake occurrence frequency is obviously improved. And the earthquake damage in China has the characteristics of high intensity, high frequency, wide distribution range and the like. The bridge is an important way of traffic transportation, the vibration of the bridge deck can seriously affect the service life of the bridge, and particularly, the bridge can be seriously damaged in case of earthquake disasters and the like, so that traffic is interrupted, and great economic loss is caused. In recent years, a large number of bridges are built in China, once the bridges are damaged in an earthquake, the bridges not only pose great threat to the lives and properties of people, but also restrict the development of the socioeconomic performance of China and certainly cause great loss.
At present, the bridge of china is often only restricted horizontal bridge to for the relatively great displacement of restriction upper portion roof beam body to, in the same direction as bridge to or vertical relatively great displacement, and in actual earthquake, the displacement direction of roof beam body can not only take place the displacement in a direction, and the displacement direction has included in the same direction as bridge to, horizontal bridge to and vertical to arouse multiple earthquake disasters, include: the support damages, and the roof beam body takes place to fall the roof beam and damages, and the collision damage of expansion joint department, the vertical warpage of the roof beam body damages, and the vertical collision that takes place between the roof beam body and support destroys etc.. But China lacks in research on the relatively large displacement of the multidirectional limiting beam body. At present, the bridge damping support is often huge and heavy, when a damping part is damaged, the bridge damping support is troublesome to repair, and the flexibility of replacement is low. Some smaller bridge supports have unsatisfactory damping effect, and especially when an earthquake occurs, the damping effect on energy waves along the bridge direction and the vertical direction is poor. Traditional reinforced concrete dog dead weight is too big, and the nature is fragile, and it is not convenient to restore, takes place irreparable damage easily, and the direction of restriction displacement is too single, can't be competent in earthquake-resistant bridge in earthquake active area.
In order to make up for the defects, a novel self-resetting multidirectional limiting energy-consumption anti-seismic stop block structure needs to be designed and developed, so that the multi-directional displacement of a bridge body can be limited, energy waves generated in earthquakes can be effectively dissipated, and the self-resetting effect is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides a self-resetting multidirectional limiting energy-consumption anti-seismic stop block structure which can effectively limit relatively large displacement of a bridge body and a bent cap in an earthquake in multiple directions, avoid the damage of a support and prevent the earthquake damage of a falling beam; the elasticity of the structural material can be utilized to achieve the self-resetting effect; when the displacement of the beam body is too large due to too large earthquake intensity, the beam body collides with the stop block, so that the displacement is limited, the beam falling hazard is prevented, and the earthquake damage is reduced.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model discloses a from spacing power consumption antidetonation dog structure of restoring to throne multidirectionally, including the dog, the top edge fixed connection of its bottom and bent cap, the steelframe, it includes the steel sheet, the steel sheet be by set up in "L" shape structure that diaphragm at dog top and the riser that sets up in diaphragm bottom outer end are constituteed, the riser with be equipped with damping spring between the lateral wall of dog, the inner of diaphragm and the side fixed connection of the roof beam body, the stopper, it set up in between dog and the roof beam body, the stopper is including being fixed in first stopper support on the dog inside wall, be fixed in the second stopper support in the roof beam body outside, the cover is equipped with stopper elastic belt between first, the second stopper support.
Furthermore, the preferable number of the damping springs is 2-4.
Furthermore, a plurality of steel balls are fixed on the upper surface of the stop block, the preferred number of the steel balls is 4-10, and the preferred diameter and length are 10mm-14 mm; the lower surface of the transverse plate is provided with a high-friction silicon rubber panel which is in abutting contact with the steel balls.
Furthermore, the lower surface section of the high-friction silicon rubber panel is of a wave-shaped structure, and the friction coefficient of the high-friction silicon rubber panel is greater than 0.2.
Furthermore, the upper portion of the longitudinal section of the stop block is of a square structure, the lower portion of the longitudinal section of the stop block is of a right trapezoid structure, a bottom plate used for fixing the stop block on the cover beam is arranged on the lower surface of the stop block, and a plurality of bottom plate bolt holes used for being matched with fixing bolts to penetrate through are formed in the bottom plate.
Furthermore, the inner side of the upper surface of the transverse plate is provided with a steel side plate which is connected with the outer side of the beam body, and the steel side plate is provided with a plurality of steel side plate bolt holes which are used for being matched with fixing bolts to penetrate through.
Furthermore, a stiffening plate is arranged between the steel side plates and the transverse plate, the longitudinal section of the stiffening plate is of a right-angled triangle structure, the bottom end of the stiffening plate is fixedly connected with the upper surface of the transverse plate, and the side wall of the stiffening plate is connected with the outer wall of the steel side plate.
Furthermore, first stopper support, second stopper support are square structure, and the equidistant square groove that is used for suit stopper elastic belt that is equipped with on its lateral wall, and the preferred number of stopper elastic belt is 3.
Furthermore, the outer side wall of the second stopper support is provided with a stopper steel side plate for fixing the stopper steel side plate on the outer side wall of the beam body, and the stopper steel side plate is provided with a plurality of stopper steel side plate bolt holes for allowing fixing bolts to penetrate.
Furthermore, the inner side walls of the first stopper support and the second stopper support are provided with tetrafluoroethylene sliding plates with the same cross section shapes, the tetrafluoroethylene sliding plates can increase vertical friction force between the first stopper support and the second stopper support when the stop block collides with the beam body, and the optimal thickness is 5mm-10 mm.
Furthermore, be equipped with between the lower surface of the roof beam body and the upper surface of bent cap and subtract isolation bearing and at least one second stopper, the second stopper include integrated into one piece in the lower surface is square concrete piece and pulling force rope in the middle part of the roof beam body, the one end of pulling force rope with the lateral wall of concrete piece links to each other, and the other end is fixed in on the upper surface of bent cap, the number of second stopper can be according to the strong and weak suitable increase or reduction of roof beam body size of antidetonation.
The beneficial effects of the utility model reside in that:
1. the utility model can provide tension to the opposite direction of displacement when the beam body of the bridge is displaced through the elastic belts of the position limiter, so as to block the displacement of the beam body, and when the beam body is displaced vertically and forwardly, the elastic belts of the position limiter at the two sides of the beam body can provide tension; when the beam body only generates transverse displacement, the elastic belt of the limiter at one side provides tension, the elastic belt of the limiter at the other side does not play a role temporarily, and the existence of the damping spring can block the transverse displacement of the beam body and dissipate earthquake energy;
2. the high-friction silicon rubber panel can block the displacement of the horizontal beam body and play a role in buffering through the material characteristics of the high-friction silicon rubber panel in the vertical direction; the vertical deformation of the high-friction silicon rubber panel after being pressed when the beam body is displaced vertically is effectively guaranteed, when the beam body is displaced horizontally, the steel balls can continuously extrude the high-friction silicon rubber panel, the high-friction design can increase the difficulty of displacement, the earthquake energy is dissipated, and the earthquake-resistant effect is achieved;
3. the utility model further limits the displacement of the beam body by arranging the second limiter, thereby effectively weakening the damage of the earthquake to the bridge; when the transverse displacement of the beam body is overlarge due to overlarge earthquake, the stop block collides with the beam body, so that the beam body is prevented from falling;
4. the utility model achieves the effect of automatic reset by the self deformation recovery of the elastic material after the earthquake; a set of bridge anti-seismic stop block structure is uniformly arranged on each bent cap, so that the seismic damage can be effectively prevented;
5. the utility model discloses the structure has simple structure, practicality strong, compatible good, construction convenience, maintenance advantage such as convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic view of the stopper structure of the present invention;
FIG. 5 is a schematic view of the steel frame structure of the present invention;
FIG. 6 is a schematic view of the stopper of the present invention;
fig. 7 is a schematic structural view of a second stopper of the present invention.
In the figure, 1-beam body, 2-capping beam, 3-seismic isolation support, 4-stop block, 5-steel frame, 6-position limiter, 7-second position limiter, 9-bottom plate, 10-bottom plate bolt hole, 11-steel ball, 12-steel plate, 121-transverse plate, 122-vertical plate, 13-steel side plate, 14-stiffening plate, 15-steel side plate bolt hole, 16-high friction silicon rubber panel, 17-damping spring, 18-first position limiter support, 19-position limiter elastic belt, 20-position limiter steel side plate, 21-tetrafluoroethylene sliding plate, 22-position limiter steel side plate bolt hole, 23-concrete block, 24-tensile rope, 25-second position limiter support and 26-square groove.
Detailed Description
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. In addition, the terms "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as the scope of the present invention
The invention will be further described with reference to the following figures and examples:
see fig. 1-7.
The utility model discloses a from multidirectional spacing power consumption antidetonation dog structure that restores to throne, including dog 4, its bottom and the top edge fixed connection of bent cap 2, steelframe 5, it includes steel sheet 12, steel sheet 12 is for set up in the diaphragm 121 at dog 4 top and set up in the "L" shape structure that the riser 122 of diaphragm 121 bottom outer end constitutes, be equipped with damping spring 17 between riser 122 and the lateral wall of dog 4, the inner of diaphragm 121 and the side fixed connection of roof beam body 1, stopper 6, it sets up between dog 4 and roof beam body 1, stopper 6 is including being fixed in first stopper support 18 on the dog 4 inside wall, be fixed in the second stopper support 25 outside roof beam body 1, the cover is equipped with stopper elastic belt 19 between first, the second stopper support, the present case can provide the pulling force to the opposite side of displacement when the roof beam body 1 of bridge takes place the displacement through stopper elastic belt 19, hinder the roof beam body 1 can provide the pulling force when the roof beam body 1 of bridge takes place the displacement, the horizontal damping belt 19 can provide the tensile force when the horizontal damping displacement of the horizontal damping belt 19 of the horizontal damping that the displacement takes place, prevent the horizontal displacement of the horizontal damping displacement of roof beam 1 and the horizontal displacement of the bridge from taking place, thereby the horizontal displacement of the horizontal damping belt 19, the horizontal displacement of the bridge, the horizontal displacement of the.
Preferably, the preferable distance between the stop block 4 and the beam body 1 is 40mm-80 mm; the vertical preferred distance between the stop block 4 and the upper steel frame 5 of the stop block is 20-40 mm, and the horizontal preferred distance is 30-60 mm; the preferred number of damping springs 17 is 2-4.
As shown in fig. 1, 3 and 4, a plurality of steel balls 11 are fixed on the upper surface of the stopper 4, the diameter of each steel ball 11 is preferably 10mm to 14mm, and the preferred number of the steel balls 11 is 4 to 10; the lower surface of the transverse plate 121 is provided with a high-friction silicon rubber panel 16, the high-friction silicon rubber panel 16 is in abutting contact with the steel balls 11, and the high-friction silicon rubber panel 16 can block the displacement of the horizontal beam body 1 and plays a role in buffering through the material characteristics of the high-friction silicon rubber panel in the vertical direction.
As shown in fig. 3, the cross section of the lower surface of the high-friction silicone rubber panel 16 is a wave-shaped structure, the friction coefficient is greater than 0.2, the lower surface is in a concave-convex shape, and the preferred thickness is 20mm-40 mm; when effectively having guaranteed that roof beam body 1 takes place vertical displacement, the vertical deflection of high friction silicon rubber panel 16 after the pressurized, when taking place horizontal displacement, steel ball 11 will constantly extrude high friction silicon rubber panel 16 and the design of high frictional force still can increase the degree of difficulty of displacement, dissipation seismic energy to play antidetonation effect.
As shown in fig. 4, the upper portion of the longitudinal section of the stop block 4 is a square structure, and the lower portion of the longitudinal section of the stop block 4 is a right trapezoid structure, so that the structure is more stable, the lower surface of the stop block 4 is provided with a bottom plate 9 for fixing the stop block on the cover beam 2, the bottom plate 9 is provided with a plurality of bottom plate bolt holes 10 for allowing fixing bolts to pass through, and the stop block 4 can be more conveniently fixed above the cover beam 2 by arranging the bottom plate 9.
As shown in fig. 5, a steel side plate 13 for connecting with the outer side of the beam body 1 is disposed on the inner side of the upper surface of the horizontal plate 121, and a plurality of steel side plate bolt holes 15 for allowing fixing bolts to pass through are disposed on the steel side plate 13, so that the steel plate 12 can be more conveniently fixed on the beam body 1.
As shown in fig. 5, a stiffening plate 14 is arranged between the steel side plate 13 and the transverse plate 121, the longitudinal section of the stiffening plate 14 is in a right-angled triangle structure, the bottom end of the stiffening plate 14 is fixedly connected with the upper surface of the transverse plate 121, the side wall of the stiffening plate is connected with the outer wall of the steel side plate 13, and the connection between the steel side plate 13 and the transverse plate 121 is reinforced, so that the phenomenon that the steel side plate 13 is turned over due to insufficient strength when the beam body 1 vibrates is avoided.
As shown in fig. 3 and 6, the first stopper bracket 18 and the second stopper bracket 25 are of a square structure, a plurality of square grooves 26 for sleeving the stopper elastic belts 19 are formed in the outer side walls of the first stopper bracket 18 and the second stopper bracket 25 at equal intervals, the stopper elastic belts 19 can be better sleeved on the first stopper bracket 25 and the second stopper bracket 25 one by arranging the square grooves 26, the number of the stopper elastic belts is preferably 3, and the number of the stopper elastic belts corresponding to the square grooves 26 is preferably 3.
As shown in fig. 3 and 6, the outer side wall of the second stopper bracket 25 is provided with a stopper steel side plate 20 for fixing the stopper steel side plate on the outer side wall of the beam body 1, the stopper steel side plate 20 is provided with a plurality of stopper steel side plate bolt holes 22 for allowing fixing bolts to pass through, and the stopper 6 can be more conveniently mounted on the outer side wall of the beam body 1 by arranging the stopper steel side plate 20.
As shown in fig. 6, the tetrafluoroethylene sliding plates 21 having the same cross-sectional shape as the first and second stopper brackets are provided on the inner side walls of the first and second stopper brackets, and the tetrafluoroethylene sliding plates 21 can increase the vertical friction between the first and second stopper brackets when the stopper 4 collides with the beam body 1, and preferably have a thickness of 5mm to 10 mm.
As shown in fig. 1, 2 and 7, an earthquake reduction and isolation support 3 and at least one second stopper 7 are arranged between the lower surface of the beam body 1 and the upper surface of the cover beam 2, the second stopper 7 comprises a square concrete block 23 and a tensile rope 24 which are integrally formed on the lower surface of the middle part of the beam body 1, one end of the tensile rope 24 is connected with the side wall of the concrete block 23, the other end of the tensile rope is fixed on the upper surface of the cover beam 2, the displacement of the beam body is further limited by arranging the second stopper, the damage of an earthquake to the bridge is effectively weakened, and the number of the second stoppers 7 can be properly increased or decreased according to the earthquake strength and the size of the beam body 1.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a from spacing power consumption antidetonation dog structure of multidirectional that restores to throne which characterized in that includes:
the bottom of the stop block (4) is fixedly connected with the top edge of the cover beam (2);
the steel frame (5) comprises a steel plate (12), the steel plate (12) is of an L-shaped structure consisting of a transverse plate (121) arranged at the top of the stop block (4) and a vertical plate (122) arranged at the outer end of the bottom of the transverse plate (121), a damping spring (17) is arranged between the vertical plate (122) and the outer side wall of the stop block (4), and the inner end of the transverse plate (121) is fixedly connected with the side face of the beam body (1);
the stopper (6) is arranged between the stop block (4) and the beam body (1), the stopper (6) comprises a first stopper support (18) fixed on the inner side wall of the stop block (4) and a second stopper support (25) fixed on the outer side of the beam body (1), and a stopper elastic belt (19) is sleeved between the first stopper support and the second stopper support.
2. A self-resetting multidirectional limiting energy-dissipating earthquake-proof stop block structure according to claim 1, wherein a plurality of steel balls (11) are fixed on the upper surface of the stop block (4); the lower surface of the transverse plate (121) is provided with a high-friction silicon rubber panel (16), and the high-friction silicon rubber panel (16) is in abutting contact with the steel balls (11).
3. A self-resetting multidirectional limiting energy-dissipating anti-seismic stop structure according to claim 2, wherein the cross section of the lower surface of the high-friction silicone rubber panel (16) is in a wave-shaped structure, and the friction coefficient is greater than 0.2.
4. A self-resetting multidirectional limiting energy-consuming anti-seismic stop block structure according to claim 3, wherein the upper portion of the longitudinal section of the stop block (4) is of a square structure, the lower portion of the longitudinal section of the stop block (4) is of a right trapezoid structure, a bottom plate (9) for fixing the stop block on the cover beam (2) is arranged on the lower surface of the stop block (4), and a plurality of bottom plate bolt holes (10) for allowing fixing bolts to pass through are formed in the bottom plate (9).
5. The structure of a self-resetting multidirectional limiting energy-dissipating anti-seismic stop block according to claim 4, wherein a steel side plate (13) for connecting with the outer side of the beam body (1) is arranged on the inner side of the upper surface of the transverse plate (121), and a plurality of steel side plate bolt holes (15) for allowing fixing bolts to penetrate through are formed in the steel side plate (13).
6. The self-resetting multidirectional limiting energy-dissipating anti-seismic stop block structure according to claim 5, wherein a stiffening plate (14) is arranged between the steel side plates (13) and the transverse plate (121), the longitudinal section of the stiffening plate (14) is in a right-angled triangle structure, the bottom end of the stiffening plate (14) is fixedly connected with the upper surface of the transverse plate (121), and the side wall of the stiffening plate is connected with the outer wall of the steel side plate (13).
7. A self-resetting multidirectional limiting energy-dissipating earthquake-resistant stop block structure according to any one of claims 1 to 6, wherein the first limiter support (18) and the second limiter support (25) are of a square structure, and a plurality of square grooves (26) for sleeving the elastic belts (19) of the limiters are arranged on the outer side walls of the square structures at equal intervals.
8. The structure of a self-resetting multidirectional limiting energy-dissipating earthquake-resistant stop block according to claim 7, wherein a steel side plate (20) of the limiter, which is used for fixing the stop block on the outer side wall of the beam body (1), is arranged on the outer side wall of the second limiter bracket (25), and a plurality of steel side plate bolt holes (22) of the limiter, which are used for allowing fixing bolts to pass through, are arranged on the steel side plate (20) of the limiter.
9. The structure of a self-resetting multidirectional limiting energy-dissipating earthquake-proof stop block according to claim 8, wherein the inner side walls of the first and second limiter supports are provided with tetrafluoroethylene sliding plates (21) with the same cross-sectional shapes.
10. The structure of a self-resetting multidirectional limiting energy-consuming anti-seismic stop block according to claim 9, wherein an earthquake reduction and isolation support (3) and at least one second limiting stopper (7) are arranged between the lower surface of the beam body (1) and the upper surface of the cover beam (2), the second limiting stopper (7) comprises a square concrete block (23) and a tensile rope (24) which are integrally formed on the lower surface of the middle part of the beam body (1), one end of the tensile rope (24) is connected with the side wall of the concrete block (23), and the other end of the tensile rope is fixed on the upper surface of the cover beam (2).
CN201921287002.8U 2019-08-09 2019-08-09 Self-reset multidirectional limiting energy-consumption anti-seismic stop block structure Active CN211006307U (en)

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CN201921287002.8U CN211006307U (en) 2019-08-09 2019-08-09 Self-reset multidirectional limiting energy-consumption anti-seismic stop block structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485263A (en) * 2019-08-09 2019-11-22 南昌大学 A kind of multidirectional limit energy consumption anti-seismic stop structure of Self-resetting
CN111979933A (en) * 2020-09-14 2020-11-24 长沙市公路桥梁建设有限责任公司 Elastic limiting stopper for bridge deviation correction and bridge with automatic deviation correction function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485263A (en) * 2019-08-09 2019-11-22 南昌大学 A kind of multidirectional limit energy consumption anti-seismic stop structure of Self-resetting
CN111979933A (en) * 2020-09-14 2020-11-24 长沙市公路桥梁建设有限责任公司 Elastic limiting stopper for bridge deviation correction and bridge with automatic deviation correction function

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