CN114482406A - Vibration isolation column suitable for subway station - Google Patents
Vibration isolation column suitable for subway station Download PDFInfo
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- CN114482406A CN114482406A CN202210187537.8A CN202210187537A CN114482406A CN 114482406 A CN114482406 A CN 114482406A CN 202210187537 A CN202210187537 A CN 202210187537A CN 114482406 A CN114482406 A CN 114482406A
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- concave
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- vibration isolation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the field of vibration reduction of rail transit structures, in particular to a vibration isolation column suitable for a subway station. The middle part of the vibration isolation column is of a concave-convex nested structure which is arranged up and down, and the concave-convex nested structure positioned at the upper part and the concave-convex nested structure positioned at the lower part are arranged in a staggered way; a certain gap is arranged between the adjacent nests on the same plane in the upper concave-convex nest and the lower concave-convex nest; the convex parts of the upper concave-convex nesting and the lower concave-convex nesting are separated relative to the concave parts of the upper concave-convex nesting and the lower concave-convex nesting, and vibration reduction mechanisms are arranged in gaps between the separation. The invention achieves the function of effectively realizing the layer-by-layer vibration reduction of the supporting columns; the influence of subway train and equipment operation on subway stations and pedestrian traveling is reduced; the maintenance cost of the structure in the operation period is reduced.
Description
Technical Field
The invention relates to the field of vibration reduction of rail transit structures, in particular to a vibration isolation column suitable for a subway station.
Background
With the continuous development of rail transit and the continuous increase of the operating mileage of subways, the vibration problem caused by the operation of subway trains and related equipment is becoming more severe. The existing vibration reduction measures are mainly used for reducing and isolating vibration of a vibration source, such as designing a related vibration reduction fastener, adopting a vibration reduction ballast bed and a floating slab track and the like, and the measures need to carry out overall replacement on a track structure to realize the purpose of vibration reduction.
The environmental vibration can bring the potential safety hazard for subway station, and the influence that brings in the structure angle is not ignorable. Firstly, the integral structure of a station can generate larger dynamic stress, so that the concrete structure can generate fatigue cracking; secondly, the strong vibration can cause the uneven settlement of the bottom foundation, so that the whole stress of the station is uneven, and the safety problem is caused.
At present, no related measures for directly improving the structure of a subway station are available for achieving the purpose of vibration reduction. In current vibration reduction measures, the floating plate way bed is inconvenient for maintaining and curing damaged steel rails and has partial potential safety hazards; the damping fastener makes the rubber cushion produce extra compression deformation, loses some damping performance, and the damping performance of fastener also is difficult to exert.
Disclosure of Invention
Aiming at the defects, the invention provides the vibration isolation column suitable for the subway station.
The invention adopts the following technical scheme:
the invention relates to a vibration isolation column suitable for a subway station, wherein the middle part of the vibration isolation column is of a concave-convex nested structure which is arranged up and down, and concave-convex nests positioned on the upper part and concave-convex nests positioned on the lower part are arranged in a staggered manner; a certain gap is arranged between the adjacent nests on the same plane in the upper concave-convex nest and the lower concave-convex nest; the convex parts of the upper concave-convex nesting and the lower concave-convex nesting are separated relative to the concave parts of the upper concave-convex nesting and the lower concave-convex nesting, and vibration reduction mechanisms are arranged in gaps between the separation.
The invention relates to a vibration isolation column suitable for a subway station, wherein a vibration damping mechanism comprises an upper support, a lower support, a middle support, a spherical support and a steel column; the upper support, the lower base and the middle support are arranged in parallel up and down, a steel column is arranged between the upper support and the lower base, the steel column penetrates through the middle support, and the steel column is positioned in the center parts of the upper support, the lower base and the middle support; a plurality of spherical supporting structures are arranged between the bottom end face of the upper support and the upper end face of the middle support, and a plurality of spherical supporting structures are arranged between the lower end face of the middle support and the upper end face of the lower base.
The invention relates to a vibration isolation column suitable for a subway station, which further comprises a consumption-resistant rubber block, a low-frequency cylindrical spiral torsion spring and annular rubber damping; the annular rubber damper is formed by mutually sleeving an upper damper and a lower damper, a low-frequency cylindrical spiral torsion spring is arranged in the annular rubber damper, the annular rubber damper is vertically arranged, and consumption-resistant rubber blocks are respectively arranged at the upper end and the lower end of the annular rubber damper; the wear-resistant rubber block, the low-frequency cylindrical helical torsion spring and the annular rubber damper form a vibration damping mechanism, and the vibration damping mechanism is arranged at the top end and the bottom end of the steel column.
The invention relates to a vibration isolation column suitable for a subway station.A spherical supporting structure comprises a spherical shell, a pneumatic telescopic rod and special-shaped composite rubber; the top end and the bottom end of the rod body of the pneumatic telescopic rod are respectively provided with special-shaped compound rubber; the special-shaped composite rubber and the pneumatic telescopic rod are combined to form a special-shaped composite rubber spring damping structure; and a spherical shell is arranged on the outer side of the special-shaped composite rubber.
According to the vibration isolation column suitable for the subway station, the pneumatic telescopic rods in the spherical supporting pieces are obliquely arranged; the included angle between the spherical supporting piece and the end face of the upper support and the end face of the middle support which are connected with the spherical supporting piece is 45 degrees; the included angle between the spherical supporting piece and the end faces of the connected middle support and the lower support is 45 degrees.
The middle support is formed by superposing three layered plate structures, the upper plate body and the lower plate body are made of metal materials, and the middle plate body is made of viscoelastic materials and constraint materials.
The annular rubber vibration isolation column suitable for the subway station is prepared from butyl rubber, wherein the damping specific gravity of the annular rubber is 1.7, the breaking force is 2MPa, the elongation is 250%, and the hardness is 65.
Advantageous effects
According to the vibration isolation column suitable for the subway station, the middle part of the support column is of the concave-convex nested structure, and the top and the bottom of the trapezoidal nested structure are provided with the novel vibration damping structure, wherein the high-damping vibration damping spring support, the spherical support structure and the pneumatic telescopic rod in the vibration damping structure realize the vibration damping function, so that the aim of effectively realizing the layer-by-layer vibration damping function of the support column is fulfilled; the influence of subway train and equipment operation on subway stations and pedestrian traveling is reduced; the maintenance cost of the structure in the operation period is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the damping mechanism of the present invention;
FIG. 3 is a schematic view of a high damping damper spring support of the present invention;
FIG. 4 is a schematic view of the spherical support structure of the present invention;
FIG. 5 is a schematic view of the damping structure of the profiled composite rubber spring of the present invention;
in the figure, 1 is a concave-convex nested structure; 2 is a damping mechanism; 3 is a vibration damping steel plate; 4 is a damping rubber plate, 5 is a high damping vibration reduction spring support; 6 is a wear-resistant rubber block; 7 is a low-frequency cylindrical helical torsion spring, 8 is an annular rubber damper, and 9 is a steel column; 10 is a spherical support structure; 11 is a special-shaped composite rubber spring damping structure; 12 is a pneumatic telescopic rod; 101 is a spherical shell, 102 is a pneumatic telescopic rod, and 103 is special-shaped composite rubber.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
As shown in fig. 1: the invention provides a vibration isolation column suitable for a subway station, wherein the middle part of the vibration isolation column is of a concave-convex nesting 1 structure which is arranged up and down, and the concave-convex nesting 1 at the upper part and the concave-convex nesting 1 at the lower part are arranged in a staggered way; a certain gap is arranged between the adjacent nests on the same plane in the upper concave-convex nest 1 and the lower concave-convex nest 1; the convex parts of the upper concave-convex nesting 1 and the lower concave-convex nesting 1 are separated relative to the concave parts of the upper concave-convex nesting 1 and the lower concave-convex nesting 1, and the vibration damping mechanisms 2 are arranged in gaps between the separation.
As shown in fig. 2: the damping mechanism 2 comprises an upper support 21, a lower support 23, a middle support 22, a spherical support 10 and a steel column 9; the upper support 21, the lower support 23 and the middle support 22 are arranged in parallel up and down, a steel column 9 is arranged between the upper support 21 and the lower support 23, the steel column 9 penetrates through the middle support 22, and the steel column 9 is positioned at the central parts of the upper support 21, the lower support 23 and the middle support 22; a plurality of spherical supporting pieces 10 are arranged between the bottom end surface of the upper support 21 and the upper end surface of the middle support 22, and a plurality of spherical supporting pieces 10 are arranged between the lower end surface of the middle support 22 and the upper end surface of the lower support 23.
As shown in fig. 3: the high-damping vibration attenuation spring support 13 is composed of a wear-resistant rubber block 6, a low-frequency cylindrical spiral torsion spring 7 and an annular rubber damper 8; the annular rubber damper 8 is formed by mutually sleeving an upper damper and a lower damper, a low-frequency cylindrical spiral torsion spring 7 is arranged in the annular rubber damper 8, the annular rubber damper 8 is vertically arranged, and the upper end and the lower end of the annular rubber damper 8 are respectively provided with a consumption-resistant rubber block 6; the wear-resistant rubber block 6, the low-frequency cylindrical helical torsion spring 7 and the annular rubber damper form a vibration damping mechanism, and the vibration damping mechanism is arranged at the top end and the bottom end of the steel column 9.
The bottom of the steel column 9 is a composite foundation bottom surface of a stainless steel plate and a polytetrafluoroethylene film pressing plate, and the composite foundation bottom surface is high in bearing capacity, small in deformation, wear-resistant and high in buffering performance.
The wear-resistant rubber block 6 is nitrile rubber, has high wear resistance, strong cohesive force and certain bearing capacity, the middle part is provided with a low-frequency cylindrical spiral torsion spring, and the two ends of the vibration damping support are provided with rubber dampers, so that the damping coefficient is increased, and the longitudinal rigidity and the transverse rigidity are improved.
As shown in fig. 4 and 5: the invention relates to an isolation column suitable for a subway station.A spherical supporting structure 10 comprises a spherical shell 101, a pneumatic telescopic rod 102 and special-shaped composite rubber 103; the top end and the bottom end of the rod body of the pneumatic telescopic rod 102 are respectively provided with special-shaped compound rubber 103; the special-shaped composite rubber 103 and the pneumatic telescopic rod 102 are combined to form a special-shaped composite rubber spring damping structure 11; the spherical shell is arranged on the outer side of the special-shaped composite rubber 103. The special-shaped composite rubber 103 can bear large load, meets the rigidity requirement of the pneumatic telescopic rod in the direction, has a good damping effect, is not limited in shape, and can adapt to the novel vibration damping structure.
The pneumatic telescopic rod 102 is composed of a pressure cylinder, a moving piston, a piston rod (steel rod), a controllable support rod and a related connecting piece, high-pressure inert gas is filled in a piston pipe, a through hole is reserved, and the piston rod is stretched and retracted by utilizing pressure difference generated by the fact that the cross section area of the piston rod is smaller than that of the piston, so that the vibration reduction effect is achieved.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a vibration isolation post suitable for subway station which characterized in that: the middle part of the vibration isolation column is of a concave-convex nesting structure which is arranged up and down, and the concave-convex nesting at the upper part and the concave-convex nesting at the lower part are arranged in a staggered way;
a certain gap is arranged between the adjacent nests on the same plane in the upper concave-convex nest and the lower concave-convex nest;
the convex parts of the upper concave-convex nesting and the lower concave-convex nesting are separated relative to the concave parts of the upper concave-convex nesting and the lower concave-convex nesting, and vibration reduction mechanisms are arranged in gaps between the separation.
2. The vibration isolation column suitable for the subway station as claimed in claim 1, wherein: the damping mechanism comprises an upper support, a lower support, a middle support, a spherical support structure and a steel column; the upper support, the lower base and the middle support are arranged in parallel up and down, a steel column is arranged between the upper support and the lower base, the steel column penetrates through the middle support, and the steel column is positioned in the center parts of the upper support, the lower base and the middle support; a plurality of spherical supporting structures are arranged between the bottom end face of the upper support and the upper end face of the middle support, and a plurality of spherical supporting structures are arranged between the lower end face of the middle support and the upper end face of the lower base.
3. The vibration isolation column suitable for the subway station as claimed in claim 2, wherein: the device also comprises a wear-resistant rubber block, a low-frequency cylindrical spiral torsion spring and an annular rubber damper; the annular rubber damper is formed by mutually sleeving an upper damper and a lower damper, a low-frequency cylindrical spiral torsion spring is arranged in the annular rubber damper, the annular rubber damper is vertically arranged, and consumption-resistant rubber blocks are respectively arranged at the upper end and the lower end of the annular rubber damper; the wear-resistant rubber blocks, the low-frequency cylindrical helical torsion spring and the annular rubber damper form vibration damping mechanisms which are arranged at the top end and the bottom end of the steel column.
4. The vibration isolation column suitable for the subway station as claimed in claim 2, wherein: the spherical supporting structure comprises a spherical shell, a pneumatic telescopic rod and special-shaped composite rubber; the top end and the bottom end of the rod body of the pneumatic telescopic rod are respectively provided with special-shaped compound rubber; the special-shaped composite rubber and the pneumatic telescopic rod are combined to form a special-shaped composite rubber spring damping structure; and a spherical shell is arranged on the outer side of the special-shaped composite rubber.
5. The vibration isolation column suitable for the subway station as claimed in claim 4, wherein: the pneumatic telescopic rods in the spherical supporting structure are obliquely arranged; the included angle between the spherical supporting structure and the end surface of the upper support and the end surface of the middle support which are connected with the spherical supporting structure is 45 degrees; the included angle between the spherical supporting structure and the end faces of the connected middle support and the lower support is 45 degrees.
6. The vibration isolation column suitable for the subway station as claimed in claim 1 or 5, wherein: the middle support is formed by superposing three layered plate structures, the upper layer plate and the lower layer plate are made of metal materials, and the middle layer plate is made of viscoelastic materials and constraint materials.
7. The vibration isolation column suitable for the subway station as claimed in claim 2, wherein: the damping specific gravity of the annular rubber is 1.7, the breaking force is 2MPa, the elongation is 250%, the hardness is 65, and the annular rubber is prepared from butyl rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210187537.8A CN114482406B (en) | 2022-02-28 | 2022-02-28 | Vibration isolation column suitable for subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210187537.8A CN114482406B (en) | 2022-02-28 | 2022-02-28 | Vibration isolation column suitable for subway station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114482406A true CN114482406A (en) | 2022-05-13 |
| CN114482406B CN114482406B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210187537.8A Active CN114482406B (en) | 2022-02-28 | 2022-02-28 | Vibration isolation column suitable for subway station |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350678A (en) * | 2015-11-26 | 2016-02-24 | 广州大学 | Novel three-dimensional shock isolation device with large vertical static rigidity |
| CN206681452U (en) * | 2017-04-06 | 2017-11-28 | 杨维国 | A kind of three-dimensional isolation vibration absorber |
| CN111827503A (en) * | 2020-06-29 | 2020-10-27 | 上海大学 | Three-dimensional shock isolation (vibration) system for building |
| CN113684941A (en) * | 2021-08-09 | 2021-11-23 | 广州大学 | Low-frequency vibration isolation and damping structure of subway upper cover and design method thereof |
-
2022
- 2022-02-28 CN CN202210187537.8A patent/CN114482406B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350678A (en) * | 2015-11-26 | 2016-02-24 | 广州大学 | Novel three-dimensional shock isolation device with large vertical static rigidity |
| CN206681452U (en) * | 2017-04-06 | 2017-11-28 | 杨维国 | A kind of three-dimensional isolation vibration absorber |
| CN111827503A (en) * | 2020-06-29 | 2020-10-27 | 上海大学 | Three-dimensional shock isolation (vibration) system for building |
| CN113684941A (en) * | 2021-08-09 | 2021-11-23 | 广州大学 | Low-frequency vibration isolation and damping structure of subway upper cover and design method thereof |
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| Publication number | Publication date |
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| CN114482406B (en) | 2023-07-18 |
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