CN215289666U - Three-level vibration isolation energy dissipation support for bridge - Google Patents

Three-level vibration isolation energy dissipation support for bridge Download PDF

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Publication number
CN215289666U
CN215289666U CN202023064447.5U CN202023064447U CN215289666U CN 215289666 U CN215289666 U CN 215289666U CN 202023064447 U CN202023064447 U CN 202023064447U CN 215289666 U CN215289666 U CN 215289666U
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plates
fixed
plate
sliding
bridge
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CN202023064447.5U
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周凌远
董世承
吴新烁
王岗
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South Sichuan Intercity Railway Co ltd
Southwest Jiaotong University
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South Sichuan Intercity Railway Co ltd
Southwest Jiaotong University
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Abstract

The utility model discloses a three-level vibration isolation and energy dissipation support for a bridge, which comprises a connecting steel plate, an upper energy dissipation mechanism, a middle energy dissipation mechanism, a spring shock-absorbing damper and a pre-buried steel plate, wherein the bottom of the connecting steel plate is connected with the upper energy dissipation mechanism; the upper energy dissipation mechanism comprises a rubber layer, a bearing plate and four hydraulic cylinders, the top of the rubber layer is fixedly connected with the bottom of the connecting steel plate, the bottom of the rubber layer is fixed in a buffer groove formed in the surface of the bearing plate, the four corners of the surface of the bearing plate are fixedly provided with the hydraulic cylinders, and the top ends of the four hydraulic cylinders are connected with the bottom of the connecting steel plate. The three-level vibration isolation energy consumption support for the bridge improves the stability in the using process and has a wide application range.

Description

Three-level vibration isolation energy dissipation support for bridge
Technical Field
The utility model belongs to the technical field of the power consumption support, concretely relates to tertiary vibration isolation power consumption support is used to bridge.
Background
The vibration problem or the vibration problem is a main problem faced by bridge engineering, for a bridge, a structure is often deformed under the action of load, for dynamic load, local vibration of the bridge structure is often caused, and for an earthquake, particularly for the bridge engineering in an earthquake area, the deformation of the bridge structure caused by the vibration is more serious. When the vibration or shock causes large displacement, the structure is damaged and destroyed, and the use of the structure is affected. When the displacement is small, structural fatigue of a bridge structure, such as a concrete structure, a reinforced concrete structure or a steel structure, may be caused due to reciprocating vibration or shock, which affects the service life of the structure, and once the vibration or shock frequency is equal to or close to the natural frequency of the structure, the structural resonance may be caused, which seriously affects the service life of the structure.
For the vibration damping and energy dissipation structure of the bridge structure, a lot of research results are available at present, and a lot of characteristic damping vibration damping or shock absorption devices are formed. For example, a sliding friction surface is constructed by adopting a friction damping support, and energy consumption is reduced by forming sliding friction to reduce energy caused by vibration or vibration; or energy-consuming metal such as memory alloy is adopted, and energy-consuming vibration reduction or shock absorption is carried out by utilizing the deformation of the energy-consuming metal. The existing vibration isolation energy consumption support is not easy to adjust and has a narrow application range.
Therefore, in order to meet the current situation, the design and production of the three-stage vibration isolation energy dissipation support for the bridge are urgently needed to meet the actual use requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tertiary vibration isolation power consumption support is used to bridge to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a three-level vibration isolation and energy dissipation support for a bridge comprises a connecting steel plate, an upper energy dissipation mechanism, a middle energy dissipation mechanism, a spring shock absorber damper and an embedded steel plate, wherein the bottom of the connecting steel plate is connected with the upper energy dissipation mechanism;
the upper energy consumption mechanism comprises a rubber layer, a bearing plate and hydraulic cylinders, the top of the rubber layer is fixedly connected with the bottom of the connecting steel plate, the bottom of the rubber layer is fixed in a buffer groove formed in the surface of the bearing plate, the hydraulic cylinders are fixed at the four corners of the surface of the bearing plate, the top ends of the four hydraulic cylinders are connected with the bottom of the connecting steel plate, and the bottom surface of the bearing plate is provided with two parallel sliding grooves;
the middle energy consumption mechanism comprises supporting plates, side columns, an inclined table, sliding columns and extension springs, the number of the sliding columns is four, limiting plates are fixed to the tops of the four sliding columns, the tops of the two limiting plates are abutted to the bottom surface of one sliding groove in the bottom surface of the bearing plate, the tops of the other two limiting plates are abutted to the bottom surface of the other sliding groove, inclined sliding plates are welded to the bottoms of the four sliding columns, the four sliding plates are respectively in sliding connection with four limiting grooves formed in the surface of the inclined table, the supporting plates are fixed to the bottoms of the inclined table, the side columns are fixed to the four corners of the surface of the supporting plate, grooves are formed in the tops of the four side columns, connecting lugs are welded to the side walls of the four sliding columns, and the two extension springs are connected between the four connecting lugs through hooks;
the spring damping damper comprises connecting blocks, shell plates, an upper shell and a bottom plate, wherein the number of the connecting blocks is four, the four connecting blocks distributed in a rectangular array are all fixed at the bottom of a supporting plate, the bottom of the four connecting blocks is all fixed with the shell plates, the bottom of the four shell plates is all fixed with the upper shell, the inner walls of the four upper shells are all abutted with pressing plates, the four pressing plates are all fixedly connected with the four shell plates through adjusting bolts respectively, the peripheries of the four adjusting bolts are all in threaded connection with three nuts, two nuts are respectively abutted with the top and the bottom of the pressing plates, the other nut is abutted with the bottom of the shell plate, the peripheries of the four upper shells are respectively in sliding connection with the inner peripheries of the four bottom shells, the bottoms of the four bottom shells are all fixed with the bottom plates, two limiting columns penetrating through the pressing plates are all fixed inside the four bottom shells, and damping springs are sleeved on the peripheries of the eight limiting columns, the top of the eight damping springs is abutted to the bottom of the pressing plate, and the top of the four base plates are fixed to the top of the embedded steel plate.
Preferably, a connecting rod is connected between adjacent side walls of two connecting blocks, and another connecting rod is connected between adjacent side walls of the other two connecting blocks.
Preferably, the bottom of loading board is fixed with four stoppers, four the stopper is located four side columns directly over respectively.
Preferably, a plurality of embedded bolts are welded at the top of the connecting steel plate and at the bottom of the embedded steel plate.
Preferably, the cross section of the sloping platform is configured as an isosceles trapezoid.
The utility model discloses a technological effect and advantage: the three-level vibration isolation and energy dissipation support for the bridge can perform energy dissipation treatment on slight vibration through the arranged hydraulic cylinder and the rubber layer; through the limiting plate, the sliding columns, the inclined table and the extension springs, when vibration is transmitted to the bearing plate, the bearing plate moves downwards and drives the sliding columns to move downwards, the sliding columns and the inclined table are inclined, so that the sliding columns can move in the horizontal direction while moving downwards, the extension springs between the sliding columns can absorb the energy of the vibration at the moment, energy consumption treatment is carried out, the inclined table decomposes the vibration in the vertical direction to the horizontal direction, and the stability of the whole vibration isolation and energy consumption process is improved; through adjusting bolt, clamp plate and the shell plate that sets up, through the position that changes the nut of adjusting bolt periphery, can adjust the height between clamp plate and the shell plate to change spring damper's shock attenuation effect, improved accommodation, this tertiary vibration isolation power consumption support is used to bridge has improved the stability in the use, and accommodation is wide.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is an enlarged view of the structure a in fig. 1 according to the present invention;
fig. 3 is a schematic structural diagram of the support plate of the present invention.
In the figure: 1 upper part energy dissipation mechanism, 11 rubber layers, 12 bearing plates, 13 hydraulic cylinders, 14 limiting blocks, 2 middle part energy dissipation mechanisms, 21 supporting plates, 22 side columns, 23 inclined platforms, 24 sliding plates, 25 sliding columns, 26 limiting plates, 27 extension springs, 3 spring damping dampers, 31 bottom plates, 32 bottom shells, 33 limiting columns, 34 damping springs, 35 pressing plates, 36 upper shells, 37 shell plates, 38 adjusting bolts, 39 connecting blocks, 4 connecting steel plates, 5 embedded steel plates and 6 connecting rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.
The utility model provides a three-level vibration isolation energy dissipation support for a bridge, as shown in figures 1-3, which comprises a connecting steel plate 4, an upper energy dissipation mechanism 1, a middle energy dissipation mechanism 2, a spring shock-absorbing damper 3 and a pre-buried steel plate 5, wherein the bottom of the connecting steel plate 4 is connected with the upper energy dissipation mechanism 1, the bottom of the upper energy dissipation mechanism 1 is connected with the middle energy dissipation mechanism 2, the bottom of the middle energy dissipation mechanism 2 is connected with the spring shock-absorbing damper 3, and the bottom of the spring shock-absorbing damper 3 is connected with the pre-buried steel plate 5;
the upper energy consumption mechanism 1 comprises a rubber layer 2, a bearing plate 12 and hydraulic cylinders 13, the top of the rubber layer 2 is fixedly connected with the bottom of a connecting steel plate 4, the bottom of the rubber layer 2 is fixed in a buffer groove formed in the surface of the bearing plate 12, the hydraulic cylinders 13 are fixed at four corners of the surface of the bearing plate 12, the top ends of the four hydraulic cylinders 13 are connected with the bottom of the connecting steel plate 4, and the bottom surface of the bearing plate 12 is provided with two parallel sliding grooves;
the middle energy consumption mechanism 2 comprises a support plate 21, side columns 22, an inclined table 23, a sliding column 25 and an extension spring 27, the number of the sliding columns 25 is four, limiting plates 26 are fixed at the tops of the four sliding columns 25, wherein the tops of two limit plates 26 are respectively abutted with the bottom surface of one sliding chute on the bottom surface of the bearing plate 12, the tops of the other two limit plates 26 are respectively abutted with the bottom surface of the other sliding chute, the bottoms of the four sliding columns 25 are respectively welded with inclined sliding plates 24, the four sliding plates 24 are respectively connected with four limit grooves arranged on the surface of the inclined table 23 in a sliding manner, a supporting plate 21 is fixed at the bottom of the inclined table 23, side columns 22 are fixed at four corners of the surface of the supporting plate 21, grooves are formed in the tops of the four side columns 22, connecting lugs are welded on the side walls of the four sliding columns 25, and two extension springs 27 are connected among the four connecting lugs through hooks;
the spring shock-absorbing damper 3 comprises connecting blocks 39, shell plates 37, upper shells 36 and bottom plates 31, wherein the number of the connecting blocks 39 is four, four connecting blocks 39 distributed in a rectangular array are all fixed at the bottom of a supporting plate 21, the bottom of each of the four connecting blocks 39 is fixed with a shell plate 37, the bottom of each of the four shell plates 37 is fixed with an upper shell 36, the inner walls of the four upper shells 36 are abutted against pressure plates 35, the four pressure plates 35 are respectively connected and fixed with the four shell plates 37 through adjusting bolts 38, the peripheries of the four adjusting bolts 38 are respectively in threaded connection with three screw caps, two of the screw caps are respectively abutted against the top and the bottom of the pressure plates 35, the other screw cap is abutted against the bottom of the shell plates 37, the peripheries of the four upper shells 36 are respectively in sliding connection with the inner peripheries of the four bottom shells 32, the bottom plates 31 are respectively fixed at the bottoms of the four bottom shells 32, two limiting columns 33 penetrating through the pressure plates 35 are respectively fixed inside the four bottom shells 32, eight the periphery of spacing post 33 all is equipped with damping spring 34, eight damping spring 34's top all with the bottom butt of clamp plate 35, four bottom plate 31 all fixes the top at pre-buried steel sheet 5.
Specifically, a connecting rod 6 is connected between adjacent side walls of two of the connecting blocks 39, and another connecting rod 6 is connected between adjacent side walls of the other two connecting blocks 39, so that the stability between the connecting blocks 39 is improved.
Specifically, the bottom of loading board 12 is fixed with four stopper 14, four stopper 14 is located four side columns 22 directly over respectively.
Specifically, a plurality of embedded bolts are welded at the top of the connecting steel plate 4 and the bottom of the embedded steel plate 5, so that the whole connecting steel plate is conveniently fixed between the bridge main body and the bridge pier.
Specifically, the cross section of the sloping platform 23 is configured as an isosceles trapezoid, and has symmetry.
The working principle of the three-level vibration isolation and energy dissipation support for the bridge is that the height between the pressure plate 35 and the shell plate 37 can be adjusted by changing the position of the nut on the periphery of the adjusting bolt 38, so that the shock absorption effect of the spring shock absorption damper 3 is changed, the application range is improved, when the bridge is vibrated, the rubber layer 2 and the hydraulic cylinder 13 are subjected to energy dissipation treatment firstly, when the vibration is large, the vibration is transmitted to the position of the bearing plate 12, the bearing plate 12 moves downwards and drives the sliding column 25 to move downwards, the sliding column 25 and the inclined table 23 are inclined, so that the sliding column 25 moves downwards and generates displacement in the horizontal direction, at the moment, the tension spring 27 between the sliding columns 25 absorbs the energy of the vibration, so that the energy dissipation treatment is performed, the inclined table 23 decomposes the vibration in the vertical direction to the horizontal direction, the stability of the whole in the vibration isolation and energy dissipation process is improved, and then the support plate 21 compresses the spring shock absorption damper 3 downwards, the damping springs 34 in the spring damper 3 perform energy-consuming processing on the vibration, thereby reducing the adverse effect of the vibration on the bridge.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a tertiary vibration isolation power consumption support for bridge, includes connecting plate (4), upper portion power consumption mechanism (1), middle part power consumption mechanism (2), spring shock absorber attenuator (3) and pre-buried steel sheet (5), its characterized in that: the bottom of the connecting steel plate (4) is connected with an upper energy consumption mechanism (1), the bottom of the upper energy consumption mechanism (1) is connected with a middle energy consumption mechanism (2), the bottom of the middle energy consumption mechanism (2) is connected with a spring damping damper (3), and the bottom of the spring damping damper (3) is connected with an embedded steel plate (5);
the upper energy consumption mechanism (1) comprises a rubber layer (11), a bearing plate (12) and hydraulic cylinders (13), the top of the rubber layer (11) is fixedly connected with the bottom of the connecting steel plate (4), the bottom of the rubber layer (11) is fixed in a buffer groove formed in the surface of the bearing plate (12), the hydraulic cylinders (13) are fixed at four corners of the surface of the bearing plate (12), the top ends of the four hydraulic cylinders (13) are connected with the bottom of the connecting steel plate (4), and two parallel sliding grooves are formed in the bottom surface of the bearing plate (12);
the middle energy consumption mechanism (2) comprises supporting plates (21), side columns (22), sloping platforms (23), sliding columns (25) and extension springs (27), the number of the sliding columns (25) is four, limiting plates (26) are fixed at the tops of the four sliding columns (25), the tops of the two limiting plates (26) are abutted to the bottom surface of a sliding groove in the bottom surface of the bearing plate (12), the tops of the other two limiting plates (26) are abutted to the bottom surface of another sliding groove, inclined sliding plates (24) are welded at the bottoms of the four sliding columns (25), the four sliding plates (24) are respectively in sliding connection with four limiting grooves formed in the surface of the sloping platform (23), the supporting plates (21) are fixed at the bottoms of the sloping platforms (23), the side columns (22) are fixed at four corners of the surface of the supporting plates (21), grooves are formed in the tops of the four side columns (22), the side walls of the four sliding columns (25) are welded with connecting lugs, and two extension springs (27) are connected among the four connecting lugs through hooks;
the spring damping damper (3) comprises connecting blocks (39), shell plates (37), an upper shell (36) and a bottom plate (31), the number of the connecting blocks (39) is four, the four connecting blocks (39) distributed in a rectangular array are all fixed at the bottom of a supporting plate (21), the four bottoms of the connecting blocks (39) are all fixed with the shell plates (37), the four bottoms of the shell plates (37) are all fixed with the upper shell (36), the four inner walls of the upper shell (36) are all abutted with pressing plates (35), the four pressing plates (35) are all fixedly connected with the four shell plates (37) through adjusting bolts (38), the four peripheries of the adjusting bolts (38) are all in threaded connection with three nuts, two of the nuts are respectively abutted with the top and the bottom of the pressing plates (35), another nut is abutted with the bottom of the shell plates (37), and the four peripheries of the upper shell (36) are equally divided into sliding connections with the inner circumferences of the four bottom shells (32), four the bottom of drain pan (32) all is fixed with bottom plate (31), four the inside of drain pan (32) all is fixed with two spacing posts (33) that run through clamp plate (35), eight the periphery of spacing post (33) all is equipped with damping spring (34), eight damping spring (34)'s top all with the bottom butt of clamp plate (35), four the top at pre-buried steel sheet (5) is all fixed in bottom plate (31).
2. The three-level vibration isolation and energy dissipation support for the bridge as claimed in claim 1, wherein: wherein, a connecting rod (6) is connected between the adjacent side walls of the two connecting blocks (39), and another connecting rod (6) is connected between the adjacent side walls of the other two connecting blocks (39).
3. The three-level vibration isolation and energy dissipation support for the bridge as claimed in claim 1, wherein: the bottom of loading board (12) is fixed with four stopper (14), four stopper (14) are located four side post (22) directly over respectively.
4. The three-level vibration isolation and energy dissipation support for the bridge as claimed in claim 1, wherein: and a plurality of embedded bolts are welded at the top of the connecting steel plate (4) and the bottom of the embedded steel plate (5).
5. The three-level vibration isolation and energy dissipation support for the bridge as claimed in claim 1, wherein: the cross section of the sloping platform (23) is in an isosceles trapezoid shape.
CN202023064447.5U 2020-12-17 2020-12-17 Three-level vibration isolation energy dissipation support for bridge Active CN215289666U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023064447.5U CN215289666U (en) 2020-12-17 2020-12-17 Three-level vibration isolation energy dissipation support for bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023064447.5U CN215289666U (en) 2020-12-17 2020-12-17 Three-level vibration isolation energy dissipation support for bridge

Publications (1)

Publication Number Publication Date
CN215289666U true CN215289666U (en) 2021-12-24

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Application Number Title Priority Date Filing Date
CN202023064447.5U Active CN215289666U (en) 2020-12-17 2020-12-17 Three-level vibration isolation energy dissipation support for bridge

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