CN213017446U - Friction damping shock insulation steel support with prevent roof beam function that falls - Google Patents
Friction damping shock insulation steel support with prevent roof beam function that falls Download PDFInfo
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- CN213017446U CN213017446U CN202021617806.2U CN202021617806U CN213017446U CN 213017446 U CN213017446 U CN 213017446U CN 202021617806 U CN202021617806 U CN 202021617806U CN 213017446 U CN213017446 U CN 213017446U
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Abstract
The utility model relates to a friction damping shock insulation steel support with prevent roof beam function that falls, including the last sliding plate that sets gradually from the top down, revolution mechanic, end basin, go up the sliding plate and be connected to the bridge roof beam body through last anchorage device, end basin is connected to the pier stud through lower anchorage device, is equipped with antifriction plate under the spherical crown between revolution mechanic and the end basin, end basin corrosion resistant plate, still is equipped with the vice one of friction that comprises sliding plate corrosion resistant plate, piston antifriction plate between last sliding plate and the revolution mechanic, goes up and is connected with a plurality of shock attenuation metallic element between sliding plate and the end basin. The application provides a friction damping shock insulation steel support with prevent roof beam function that falls satisfies bridge displacement demand, can play the effect that subtracts the shock insulation simultaneously, still possesses the function of preventing falling the roof beam, increases life, and simplifies the process when maintaining, changing, reduces investment and cycle.
Description
Technical Field
The utility model relates to a steel support technical field for the bridge especially relates to a friction damping shock insulation steel support with prevent roof beam function that falls.
Background
The support is a connecting device between the bridge body and the bridge pier, and simultaneously, the support transmits the bridge load to the pier top, and the requirement of bridge displacement under special conditions can be met.
Traditional support can satisfy the bridge displacement in the design allowance, when reasons such as earthquake take place the bridge displacement and be greater than the design displacement, the roof beam body may drop, takes place to fall the roof beam, so can install in addition and prevent falling the roof beam dog, prevent falling the roof beam and adopt separately-installed with the bridge, when the earthquake displacement is greater than the support displacement, prevent falling the roof beam dog and can effectively prevent the roof beam body to fall, but can not consume seismic energy in order to reduce the harm that the earthquake brought for the bridge when preventing to fall the roof beam.
Taking a common simply supported beam as an example, four supporting points of the simply supported beam are respectively provided with fixed, longitudinal, transverse and multidirectional supporting seats. In the forward bridge direction, only the fixed and transverse bridge direction supports can transmit horizontal force; in the transverse bridge direction, only the fixed and longitudinal supports can transmit horizontal force, the self-vibration period of the structure of the restraint system is usually short, and the absorbed seismic energy is large.
Traditional shock mount need set up the attenuator in support moving direction to play and consume seismic energy, reduce the earthquake injury, nevertheless attenuator manufacturing cost is high and have life is limited, oil leak scheduling problem, needs regular maintenance or change, great increase use cost.
The traditional beam stop block for preventing the beam from falling adopts a steel structure, and a mode of connecting an embedded steel plate with a bolt is adopted to be arranged between a platform cross beam and a platform buttress. The bridge aesthetic property has been influenced to a certain extent, and the steel construction needs to have perfect anti-corrosion measures, otherwise can lead to preventing falling the roof beam measure and become invalid, needs to change, and the later maintenance cost drops into greatly, great increase use cost.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned not enough of prior art, the utility model provides a friction damping shock insulation steel support with prevent falling roof beam function solves and to prevent now that the roof beam dog that falls can not consume seismic energy, and technical problem with high costs.
The utility model discloses a realize through following technical scheme:
the utility model provides a friction damping shock insulation steel support with prevent roof beam function that falls, includes from the top down last sliding plate, revolution mechanic, end basin that set gradually, last sliding plate is connected to the bridge beam body through last anchorage device, end basin is connected to the pier stud through lower anchorage device, be equipped with antifriction plate under the spherical crown, end basin corrosion resistant plate between revolution mechanic and the end basin, its characterized in that, still be equipped with the vice one of friction that comprises sliding plate corrosion resistant plate, piston antifriction plate between last sliding plate and the revolution mechanic, be connected with a plurality of shock attenuation metal element between last sliding plate and the end basin.
Furthermore, revolution mechanic includes piston, sphere antifriction plate, sphere stainless steel, the spherical crown welt that sets gradually from the top down.
Furthermore, two sides of the bottom of the upper sliding plate are respectively provided with a guide rail, the guide rails are fixed on the upper sliding plate through bolts, and the bolts are shear bolts;
the guide rail is fixed with guide rail corrosion resistant plate on one side near the piston, the piston is fixed with piston guide rail antifriction plate on one side near the guide rail, constitute friction pair two through guide rail corrosion resistant plate, piston guide rail antifriction plate between guide rail and the piston.
Furthermore, the periphery of the bottom of the upper sliding plate is respectively provided with a shearing stop block, and the shearing stop blocks are fixed on the upper sliding plate through shearing pins.
Furthermore, a group of waist-shaped holes are respectively formed in two sides of the upper sliding plate, the upper portion of the shock-absorbing metal element is located in the waist-shaped holes in the upper sliding plate, and the lower portion of the shock-absorbing metal element is fixedly connected with the bottom basin.
Furthermore, two sides of the bottom of the upper sliding plate are respectively provided with a stop block, the upper part of the shock absorption metal element is arranged in the stop blocks, and the lower part of the shock absorption metal element is fixedly connected with the bottom basin.
Furthermore, the periphery of the bottom of the upper sliding plate is respectively provided with a stop block, the upper part of the shock absorption metal element is arranged in the stop block, and the lower part of the shock absorption metal element is fixedly connected with the bottom basin.
Further, the shock-absorbing metal element is conical or cylindrical.
Furthermore, the thickness of the piston wear-resistant plate is not less than 20mm, and the piston wear-resistant plate is a non-lubricated wear-resistant plate.
Furthermore, the piston wear-resisting plate is made of polytetrafluoroethylene, modified ultra-high molecular weight polyethylene or modified polytetrafluoroethylene.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the application provides a friction damping shock insulation steel support with prevent roof beam function that falls through setting up the piston antifriction plate between last sliding plate and rotating-structure, can play certain power consumption effect, when the relative displacement of last substructure surpassed design displacement, the shock attenuation metallic element takes place plastic deformation and prevents the further relative slip of substructure, plays the function of preventing the roof beam that falls, compares in the present roof beam device that prevents falling, the cost is reduced and maintenance cycle.
Drawings
FIG. 1 is a cross-sectional view of a friction damping seismic isolation steel support with an anti-drop function according to a first embodiment of the present invention;
FIG. 2 is a top view of a friction damping seismic isolation steel support with an anti-drop function according to a first embodiment of the present invention;
FIG. 3 is a perspective view of a friction damping vibration-isolating steel support with a beam falling prevention function according to a first embodiment of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 1;
FIG. 5 is a cross-sectional view of a friction damping seismic isolation steel support with an anti-drop function according to a second embodiment of the present invention;
FIG. 6 is a top view of a friction damping seismic isolation steel support with an anti-drop function according to a second embodiment of the present invention;
FIG. 7 is a cross-sectional view of a friction damping seismic isolation steel support with an anti-drop function according to a third embodiment of the present invention;
FIG. 8 is a top view of a friction damping seismic isolation steel support with an anti-drop function according to a third embodiment of the present invention;
fig. 9 is a schematic structural view of a shock-absorbing metal member according to first to third embodiments of the present invention, wherein fig. 9(a) is a conical a-shaped shock-absorbing metal member; FIG. 9(b) is a cylindrical A-shaped shock absorbing metallic member; FIG. 9(C) is a conical B-shaped shock-absorbing metal member; FIG. 9(d) is a cylindrical B-shaped shock absorbing metallic member;
FIG. 10 is an arrangement of the shock absorbing metal elements of FIG. 9 on a support;
FIG. 11 is another arrangement of the shock absorbing metal member of FIG. 9 on a support;
FIG. 12 is a schematic view of a bridge system comprising a friction damping vibration-isolating steel support with a function of preventing beam falling according to the first to third embodiments of the present invention; wherein, FIG. 12(a) is a layout diagram when the center distance between the transverse bridge and the support is more than or equal to 4 m; FIG. 12(b) is a layout view of a transverse bridge at a distance of < 4m from the center of the support.
In the figure:
1. an upper anchorage device; 2. an upper sliding plate; 3. a stainless steel plate for a slide plate; 4. a piston wear plate; 5. a piston; 6. a spherical wear plate; 7. spherical stainless steel; 8. a spherical cap liner plate; 9. a spherical crown lower wear plate; 10. a bottom basin stainless steel plate; 11. a bottom basin; 12. a shock absorbing metal element; 13. a lower anchor device; 14. shearing the pin; 15. a guide rail stainless steel plate; 16. a piston guide rail wear plate; 17. a guide rail; 18. a stopper; 19. cutting the stop block; 20. a bridge.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1-3, the multidirectional friction damping vibration isolation steel support with the beam falling prevention function comprises an upper sliding plate 2, a rotating structure and a bottom basin 11 which are sequentially arranged from top to bottom, acting force on the upper sliding plate 2 is transmitted to the bottom basin 11 through the rotating structure, so that the rotating requirement of a bridge is met, the rotating structure comprises a piston 5, a spherical wear plate 6, spherical stainless steel 7 and a spherical crown lining plate 8 which are sequentially arranged from top to bottom, the upper sliding plate 2 is connected to a beam body through an upper anchorage device 1, the bottom basin 11 is connected to a pier column through a lower anchorage device 13, a spherical crown lower wear plate 9 and a bottom basin stainless steel plate 10 are arranged between the rotating structure and the bottom basin 11, a friction pair I consisting of a sliding plate 3 and a piston wear plate 4 is further arranged between the upper sliding plate 2 and the rotating structure, the thickness of the piston wear plate 4 is not less than 20mm, the piston wear-resisting plate 4 is a non-lubricated wear-resisting plate, so that the friction coefficient can be effectively increased, and the shock absorption effect is achieved, preferably, the piston wear-resisting plate 4 is made of polytetrafluoroethylene, modified ultrahigh molecular weight polyethylene or modified polytetrafluoroethylene; as shown in fig. 4, the piston wear plate 4 has a thickness of 20mm, is installed in a manner of being exposed by 10mm and embedded by 10mm, and is not provided with a silicone grease storage groove at the contact position with the sliding plate stainless steel plate 3; if the wear-resistant material reaches the service condition in the service life period under the non-lubrication condition, but the thickness is below 8mm, the wear-resistant material also falls within the protection range of the utility model; a plurality of shock-absorbing metal elements 12 are connected between the upper sliding plate 2 and the bottom basin 11, as shown in fig. 9. When the displacement exceeds the designed displacement, the upper sliding plate 2 is stressed to enable the damping metal element 12 to deform to consume energy, so that the damping metal element has the damping effect, can be divided into a conical type and a cylindrical type, consumes seismic energy through stress deformation, can limit the displacement at the same time, and prevents the beam falling.
As shown in fig. 9(a) -9 (d), the damping metal element 12 can be mainly classified into a cone a type, a cylinder a type, a cone B type, and a cylinder B type, where t1 and t2 are respectively the connection points with the upper sliding plate and the bottom basin, where t2 is a threaded section connected with the bottom basin for easy replacement and maintenance; l is a stress yield section, and c and d are transition sections; the arrangement and installation of the shock-absorbing metal elements 12 can be as follows: the first method is as follows: a group of waist-shaped holes are respectively formed in two sides of the upper sliding plate 2, the upper part of the shock-absorbing metal element 12 is positioned in the waist-shaped holes in the upper sliding plate 2, and the lower part of the shock-absorbing metal element 12 is fixedly connected with the bottom basin 11 through threads, so that the displacement requirement of the support under the normal working condition can be met; the second method comprises the following steps: as shown in fig. 10, two sides of the bottom of the upper sliding plate 2 are respectively provided with a stopper, the upper part of the shock-absorbing metal element 12 is placed in the stopper, and the lower part of the shock-absorbing metal element 12 is fixedly connected with the bottom basin 11; the third method comprises the following steps: as shown in fig. 11, stoppers are respectively disposed around the bottom of the upper sliding plate 2, the upper portion of the shock-absorbing metal element 12 is disposed in the stoppers, and the lower portion of the shock-absorbing metal element 12 is fixedly connected to the bottom tub 11.
Example two
As shown in fig. 5-6, on the basis of implementing one, two sides of the bottom of the upper sliding plate 2 are respectively provided with a guide rail 17, the guide rail 17 is fixed on the upper sliding plate 2 through a bolt, and the bolt is a shear type bolt; under the normal working condition, the connecting bolt moves in a single direction, under the earthquake working condition, the connecting bolt is sheared by force, the single direction type is changed into a multi-direction type (as shown in the first embodiment), and the connecting bolt has all functions of the multi-direction type;
the guide rail 17 is fixed with a guide rail 17 stainless steel plate 15 on one side close to the piston 5, the piston 5 is fixed with a piston guide rail wear-resisting plate 16 on one side close to the guide rail 17, and a friction pair II and a guiding function are formed between the guide rail 17 and the piston 5 through the guide rail 17 stainless steel plate 15 and the piston guide rail wear-resisting plate 16.
Example three:
as shown in fig. 7-8, in a fixed type of friction damping vibration-isolating steel support with a function of preventing a beam from falling, on the basis of the first embodiment, the periphery of the bottom of the upper sliding plate 2 is respectively provided with a shearing stop block, and the shearing stop blocks are fixed on the upper sliding plate 2 through shearing pins 14. The support is fixed under normal working conditions, and when the transverse force borne by the support is greater than the designed shearing force, the shearing pin 14 is stressed to shear, so that the support can be multidirectional.
In order to maximize the function of the friction damping steel support, a corresponding bridge 20 constraint system needs to be matched, and a typical constraint system of a simple beam and a continuous beam is as follows, as shown in fig. 12:
when the center distance between the transverse bridges and the supports is more than or equal to 4m, the supports are arranged as shown in figure 12 (a): the left upper part of the beam body is a transverse support (such as one of the unidirectional supports described in the second embodiment), the left lower part of the beam body is a fixed support (such as the third embodiment), the right upper part of the beam body is a multidirectional support (such as the first embodiment), and the right lower part of the beam body is a longitudinal support (such as one of the unidirectional supports described in the second embodiment).
When the distance between the transverse bridges and the centers of the supports is less than 4m, the supports are arranged as shown in FIG. 12 (b): wherein the upper left side of the beam body is provided with a fixed support, the lower left side of the beam body is provided with a fixed support, the upper right side of the beam body is provided with a longitudinal support, and the lower right side of the beam body is provided with a longitudinal support.
In conclusion, the support of the application can play a certain energy consumption role by arranging the piston wear-resisting plate between the upper sliding plate and the rotating structure, when the relative displacement of the upper lower structure exceeds the designed displacement, the shock-absorbing metal element generates plastic deformation and prevents the upper lower structure from further sliding relatively, the function of preventing the beam from falling is played, and compared with the existing beam falling prevention device, the cost is reduced, and the maintenance period is shortened.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a friction damping shock insulation steel support with prevent roof beam function that falls, includes from the top down last sliding plate (2), revolution mechanic, end basin (11) that set gradually, last sliding plate (2) are connected to the bridge roof beam body through last anchorage device (1), end basin (11) are connected to the pier stud through anchorage device (13) down, be equipped with spherical crown lower wear-resisting plate (9), end basin corrosion resistant plate (10) between revolution mechanic and end basin (11), its characterized in that, still be equipped with the vice one of friction that comprises sliding plate corrosion resistant plate (3), piston wear-resisting plate (4) between last sliding plate (2) and the revolution mechanic, be connected with a plurality of shock attenuation metal component (12) between last sliding plate (2) and end basin (11).
2. The friction damping vibration isolation steel support with the beam falling prevention function is characterized in that the rotating structure comprises a piston (5), a spherical wear-resistant plate (6), spherical stainless steel (7) and a spherical cap lining plate (8) which are arranged in sequence from top to bottom.
3. The friction damping vibration-isolating steel support with the beam falling prevention function is characterized in that guide rails (17) are respectively arranged on two sides of the bottom of the upper sliding plate (2), the guide rails (17) are fixed on the upper sliding plate (2) through bolts, and the bolts are shear type bolts;
guide rail (17) corrosion resistant plate (15) are fixed on one side of guide rail (17) close to piston (5), piston guide wear-resisting plate (16) are fixed on one side of piston (5) close to guide rail (17), and friction pair II is formed between guide rail (17) and piston (5) through guide rail (17) corrosion resistant plate (15) and piston guide wear-resisting plate (16).
4. The friction damping vibration-isolating steel support with the function of preventing the beam from falling off as claimed in claim 1, is characterized in that the periphery of the bottom of the upper sliding plate (2) is respectively provided with a shearing stop block, and the shearing stop blocks are fixed on the upper sliding plate (2) through shearing pins (14).
5. The steel support with the function of preventing the beam from falling off is characterized in that a group of oval holes are respectively formed in two sides of the upper sliding plate (2), the upper part of the shock-absorbing metal element (12) is positioned in the oval holes in the upper sliding plate (2), and the lower part of the shock-absorbing metal element (12) is fixedly connected with the bottom basin (11).
6. The friction damping vibration-isolating steel support with the function of preventing the beam from falling down as claimed in any one of claims 1 to 4, characterized in that the two sides of the bottom of the upper sliding plate (2) are respectively provided with a stop, the upper part of the vibration-isolating metal element (12) is placed in the stop, and the lower part of the vibration-isolating metal element (12) is fixedly connected with the bottom basin (11).
7. The friction damping vibration-isolating steel support with the beam falling prevention function is characterized in that stop blocks are respectively arranged on the periphery of the bottom of the upper sliding plate (2), the upper parts of the vibration-isolating metal elements (12) are placed in the stop blocks, and the lower parts of the vibration-isolating metal elements (12) are fixedly connected with the bottom basin (11).
8. The steel support with the function of preventing the beam from falling off is characterized in that the shock absorption metal element (12) is conical or cylindrical.
9. The friction damping vibration isolation steel support with the function of preventing the beam from falling down as claimed in claim 1, is characterized in that the piston wear-resisting plate (4) has a thickness not less than 20mm, and the piston wear-resisting plate (4) is a non-lubricated wear-resisting plate.
10. The friction damping vibration isolation steel support with the beam falling prevention function as claimed in claim 9, wherein the piston wear-resisting plate (4) is made of polytetrafluoroethylene, modified ultra-high molecular weight polyethylene or modified polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021617806.2U CN213017446U (en) | 2020-08-06 | 2020-08-06 | Friction damping shock insulation steel support with prevent roof beam function that falls |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021617806.2U CN213017446U (en) | 2020-08-06 | 2020-08-06 | Friction damping shock insulation steel support with prevent roof beam function that falls |
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| CN213017446U true CN213017446U (en) | 2021-04-20 |
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Cited By (2)
| 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 |
| CN114934607A (en) * | 2022-06-29 | 2022-08-23 | 广州大学 | Metal-variable friction composite damper with dual energy consumption characteristics |
-
2020
- 2020-08-06 CN CN202021617806.2U patent/CN213017446U/en active Active
Cited By (2)
| 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 |
| CN114934607A (en) * | 2022-06-29 | 2022-08-23 | 广州大学 | Metal-variable friction composite damper with dual energy consumption characteristics |
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