CN114482406B - Vibration isolation column suitable for subway station - Google Patents
Vibration isolation column suitable for subway station Download PDFInfo
- Publication number
- CN114482406B CN114482406B CN202210187537.8A CN202210187537A CN114482406B CN 114482406 B CN114482406 B CN 114482406B CN 202210187537 A CN202210187537 A CN 202210187537A CN 114482406 B CN114482406 B CN 114482406B
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- concave
- convex
- nesting
- vibration
- support
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Classifications
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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
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 concave-convex nests positioned at the upper part and concave-convex nests positioned at the lower part are arranged in a staggered way; a certain gap is arranged between the upper concave-convex nesting and the nesting adjacent to the same plane in the lower concave-convex nesting; 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 effect of effectively realizing the vibration reduction function of the support column layer by layer; the influence of subway train and equipment operation on subway stations and pedestrian travel is reduced; and 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
Along with the continuous development of rail transit and the continuous increase of subway operation mileage, vibration problems caused by the operation of subway trains and related equipment are increasingly serious. The existing vibration reduction measures mainly aim at vibration sources to reduce vibration, such as designing related vibration reduction fasteners, adopting vibration reduction ballast beds, floating slab tracks and the like, and the measures need to integrally replace track structures to achieve the vibration reduction purpose.
The environmental vibration can bring potential safety hazard to subway stations, and the influence brought by the structural angle can not be ignored. Firstly, the whole structure of the station can generate larger dynamic stress, so that the concrete structure generates fatigue cracking; secondly, stronger vibration can cause the inhomogeneous subsidence of end basis for the whole atress of station is inhomogeneous, causes the security problem.
At present, related measures for directly improving the subway station structure do not exist to achieve the purpose of vibration reduction. In the current vibration reduction measures, the floating slab track bed is inconvenient to maintain and repair damaged steel rails, and has partial potential safety hazards; the damping fastener causes the rubber cushion layer to generate additional compression deformation, and loses part of damping performance, so that the damping performance of the fastener is difficult to develop.
Disclosure of Invention
The invention provides the vibration isolation column suitable for the subway station aiming at the defects.
The invention adopts the following technical scheme:
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 at the upper part and concave-convex nests positioned at the lower part are staggered; a certain gap is arranged between the upper concave-convex nesting and the nesting adjacent to the same plane in the lower concave-convex nesting; 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 vibration isolation column suitable for the subway station comprises an upper support, a lower base, a middle support, a spherical support and a steel column; the upper support, the lower base and the middle support are arranged in an up-down parallel manner, 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 at the central 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 also comprises a wear-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, wherein 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 composite rubber; the special-shaped composite rubber and the pneumatic telescopic rod are combined to form a special-shaped composite rubber spring vibration reduction structure; the spherical shell is arranged on the outer side of the special-shaped composite rubber.
The pneumatic telescopic rod in the spherical support is obliquely arranged; the included angle between the spherical support piece and the end face of the upper support seat connected with the spherical support piece is 45 degrees; the included angle between the spherical support piece and the end face of the connected middle support seat and the end face of the lower support seat is 45 degrees.
The middle support is formed by overlapping three layers of 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 vibration isolation column suitable for the subway station is prepared from the annular rubber with damping specific gravity of 1.7, breaking force of 2MPa, elongation of 250 percent and hardness of 65.
Advantageous effects
The vibration isolation column suitable for the subway station provided by the invention has the advantages that the middle part of the support column adopts the concave-convex nested structure, and the top and the bottom of the trapezoid 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 vibration isolation column can effectively realize the vibration damping function of the support column layer by layer; the influence of subway train and equipment operation on subway stations and pedestrian travel is reduced; and 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 view of the vibration damping mechanism of the present invention;
FIG. 3 is a schematic view of a high damping vibration attenuation spring mount of the present invention;
FIG. 4 is a schematic view of a spherical support structure of the present invention;
FIG. 5 is a schematic view of the vibration damping structure of the shaped composite rubber spring of the present invention;
in the figure, 1 is concave-convex nesting; 2 is a vibration damping mechanism; 3 is a vibration damping steel plate; the damping rubber plate 4 is a high damping vibration attenuation spring support 5; 6 is a wear-resistant rubber block; 7 is a low-frequency cylindrical helical torsion spring, 8 is annular rubber damping, and 9 is a steel column; 10 is a spherical support structure; 11 is a special-shaped composite rubber spring vibration reduction structure; 12 is a pneumatic telescopic rod; 101 is a spherical shell, 102 is a pneumatic telescopic rod, and 103 is a special-shaped composite rubber.
Description of the embodiments
In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present 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 provided with concave-convex nests 1 which are arranged up and down, and the concave-convex nests 1 positioned at the upper part and the concave-convex nests 1 positioned at the lower part are arranged in a staggered manner; a certain gap is arranged between the upper concave-convex nesting 1 and the nesting adjacent to the same plane in the lower concave-convex nesting structure 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 a vibration reduction mechanism 2 is arranged in a gap between the separation.
As shown in fig. 2: the vibration reduction mechanism 2 comprises an upper support 21, a lower base 23, a middle support 22, a spherical supporting structure 10 and a steel column 9; the upper support 21, the lower base 23 and the middle support 22 are arranged in an up-down parallel manner, a steel column 9 is arranged between the upper support 21 and the lower base 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 base 23 and the middle support 22; a plurality of spherical supporting structures 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 structures 10 are arranged between the lower end surface of the middle support 22 and the upper end surface of the lower base 23.
As shown in fig. 3: the wear-resistant rubber block 6, the low-frequency cylindrical helical torsion spring 7 and the annular rubber damper 8 form a high-damping vibration-damping spring support 13; 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 wear-resistant rubber blocks 6 are respectively arranged at the upper end and the lower end of the annular rubber damper 8; 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 adopts the composite foundation bottom surface of the stainless steel plate and the polytetrafluoroethylene film pressing plate, and has the advantages of large bearing capacity, small deformation, wear resistance and strong buffering performance.
The wear-resistant rubber block 6 is nitrile rubber, has high wear resistance and strong binding power, has certain bearing capacity, is provided with a low-frequency cylindrical spiral torsion spring in the middle, and has rubber damping at two ends, thereby increasing damping coefficient and improving longitudinal and transverse rigidity.
As shown in fig. 4 and 5: the invention relates to a vibration isolation column suitable for a subway station, wherein 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 composite rubber 103; the special-shaped composite rubber 103 and the pneumatic telescopic rod 102 are combined to form a special-shaped composite rubber spring vibration reduction structure 11; the outer side of the special-shaped composite rubber 103 is provided with a spherical shell. The special-shaped composite rubber 103 can bear a large load, meets the rigidity requirement of the pneumatic telescopic rod in the direction, has an excellent damping effect, is not limited in shape, and can be adapted to the novel vibration reduction structure.
The pneumatic telescopic rod 102 is composed of a pressure cylinder, a movable piston, a piston rod (steel rod), a controllable supporting rod and related connecting pieces, high-pressure inert gas is filled in the piston tube, through holes are reserved, and the telescopic movement of the piston rod is realized by utilizing the 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.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (5)
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 nested structure which is arranged up and down, and concave-convex nests positioned at the upper part and concave-convex nests positioned at the lower part are arranged in a staggered way;
a certain gap is arranged between the upper concave-convex nesting and the nesting adjacent to the same plane in the lower concave-convex nesting;
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 vibration reduction mechanism comprises an upper support, a lower base, a middle support, a spherical supporting structure and a steel column; the upper support, the lower base and the middle support are arranged in an up-down parallel manner, 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 at the central 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.
2. The vibration isolation column for subway stations according to claim 1, wherein: the low-frequency cylindrical spiral torsion spring is provided with 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.
3. The vibration isolation column for subway stations according to claim 1, 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 composite rubber; the special-shaped composite rubber and the pneumatic telescopic rod are combined to form a special-shaped composite rubber spring vibration reduction structure; the spherical shell is arranged on the outer side of the special-shaped composite rubber.
4. A vibration-isolating column for a subway station according to claim 3, characterized in that: the pneumatic telescopic rods in the spherical supporting structure are obliquely arranged; the included angle between the spherical supporting structure and the end face of the upper support and the end face of the middle support which are connected are 45 degrees; the included angle between the spherical supporting structure and the end face of the connected middle support and the end face of the lower support is 45 degrees.
5. The vibration isolation column for subway stations according to claim 1 or 4, characterized in that: the middle support is formed by overlapping three layers of layered plate structures, the upper plate and the lower plate are made of metal materials, and the middle plate is made of viscoelastic materials and constraint materials.
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 CN114482406A (en) | 2022-05-13 |
| CN114482406B true CN114482406B (en) | 2023-07-18 |
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ID=81484965
Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN114482406B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350678B (en) * | 2015-11-26 | 2017-11-21 | 广州大学 | A kind of novel tri-dimensional shock-insulating device with larger vertical Static stiffness |
| CN206681452U (en) * | 2017-04-06 | 2017-11-28 | 杨维国 | A kind of three-dimensional isolation vibration absorber |
| CN111827503B (en) * | 2020-06-29 | 2022-06-03 | 上海大学 | Three-dimensional shock isolation (vibration) system for building |
| CN113684941B (en) * | 2021-08-09 | 2023-03-10 | 广州大学 | Low-frequency vibration isolation and vibration reduction structure of subway upper cover and design method thereof |
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- 2022-02-28 CN CN202210187537.8A patent/CN114482406B/en active Active
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| CN114482406A (en) | 2022-05-13 |
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