CN104595416A - Separation type damping energy consumption three-dimensional seismic isolation support - Google Patents

Separation type damping energy consumption three-dimensional seismic isolation support Download PDF

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Publication number
CN104595416A
CN104595416A CN201410722552.3A CN201410722552A CN104595416A CN 104595416 A CN104595416 A CN 104595416A CN 201410722552 A CN201410722552 A CN 201410722552A CN 104595416 A CN104595416 A CN 104595416A
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China
Prior art keywords
friction plate
seismic isolation
vertical
bearing
type damping
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CN201410722552.3A
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Chinese (zh)
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CN104595416B (en
Inventor
许浩
刘文光
余宏宝
何文福
吴汶洁
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/08Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • E01D19/041Elastomeric bearings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0215Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems

Abstract

The invention discloses a separation type damping energy consumption three-dimensional seismic isolation support which comprises a horizontal seismic isolation unit arranged between an upper structure and a middle bearing platform, and a vertical seismic isolation unit arranged between the middle bearing platform and a foundation bearing platform. The horizontal seismic isolation unit is a vertical lead rubber support which is axially and vertically installed, and the vertical seismic isolation unit is formed by connecting at least two inclined lead rubber supports equal in size specification in parallel to form a set of outward expanding cylindrical structure in space symmetry so that the vertical deformation borne by the vertical seismic isolation unit can be transformed into inclined deformation and outward expanding displacement of the inclined rubber supports. An upper friction plate and a lower friction plate are arranged between the vertical seismic isolation unit and the middle bearing platform, and initial supporting force is provided and seism/vibration energy is dissipated through friction sliding of a contact face. According to the separation type damping energy consumption three-dimensional seismic isolation support, seism and environment vibration in three directions can be isolated at the same time, the seism/vibration response and seism/vibration transmission of a protected structure or device with the separation type damping energy consumption three-dimensional seismic isolation support are effectively controlled, and the safety under the seism/vibration action is protected.

Description

A kind of separated type damping energy dissipation three-dimensional shock isolation support
Technical field
The present invention relates to ambient vibration and antidetonation, cushion technique field, be specifically related to a kind of separated type damping energy dissipation three-dimensional shock isolation support, be used in common building thing, special construction, bridge and machinery damping/shake.
Background technique
Along with the development of modern industry and the expansion of urban size, the ambient vibration caused by numerous vibration such as industry equipment and track traffic and noise problem display gradually, and ambient vibration has become one of seven large public hazards affecting human lives and production.Ambient vibration to the physical and mental health of mankind itself, the travelling comfort that life is lived, and the production of precision type instrument all produces and has a strong impact on.Such as Subway Vibration all has an impact to architecture production, the safety of heritage building and the living environment of house around along the line.In order to reduce the small resonance produced due to external disturbance, it is significant to carry out Anti-vibration Design.
Violent earthquake is one of serious natural disaster threatening the mankind.Horizontal seismic isolation structural system increases structural damping by the natural vibration period extending superstructure, reduces the earthquake response of structure, guarantees that superstructure still can be in elastic state when violent earthquake, or remain on the A-stage of elasto plastic deformation.Seismic isolation technology not only ensure that the safety of structure itself, also protects inside configuration equipment, facility from destruction.
For the three-dimensional isolation device of isolating earthquake and vibration simultaneously, due to being coupled of level and vertical motion effect, this shock-proof device is made to become international headache.At present, alleviate horizontal and vertical seismic loads had a lot of trials for by inventing a uncertain three-dimensional shock isolation support.Many three-dimensional isolation devices have carried out feasibility test, mainly utilize pneumatic spring and hydraulic oil to carry out vertical earthquake isolating.A lot of three-dimensional isolation device all has good vertical earthquake isolating performance or damping capacity.But the shortcoming of these equipment can not be ignored, because they are very expensive, and shape matching is large comparatively speaking, thus limits the possibility of its mass production.
Summary of the invention
In order to solve prior art problem; the object of the invention is to the deficiency overcoming prior art existence; a kind of separated type damping energy dissipation three-dimensional shock isolation support is provided; energy is shock insulation three direction compinents and ambient vibration simultaneously; adopt protected structure or the equipment of this bearing; shake/vibratory response under earthquake/effect of vibration and shake/vibration passing obtain effective control, the safety under protection earthquake/effect of vibration.
To achieve the above object of the invention, design of the present invention is as follows:
A kind of separated type damping energy dissipation three-dimensional shock isolation support, comprise the horizontal seismic isolation unit be arranged between superstructure and middle part cushion cap, the vertical earthquake isolating unit between middle part cushion cap and foundation platform, the upper surface of device and superstructure anchoring, the foundation platform anchoring of lower surface and inclination, is specially:
Horizontal seismic isolation unit is the lead core rubber support axially vertically installed, one end of lead core rubber support is fixedly connected with superstructure, the other end is fixedly connected with middle part cushion cap, form horizontal seismic isolation device, make lead core rubber support carrying from the vertical load of superstructure, realize level to shock insulation by the horizontal distortion of lead core rubber support.
Between vertical earthquake isolating unit and middle part cushion cap, upper and lower friction plate is housed, friction plate number is consistent with lead core rubber support number in vertical earthquake isolating unit.Upper friction plate is fixedly connected with middle part cushion cap, and lower friction plate is connected with corresponding connection hornblock.The surface of contact of upper and lower friction plate adopts friction material, makes friction factor adjustable within the specific limits by adopting different materials.Under vertical uniform load q, vertical earthquake isolating unit extends out motion, drives lower friction plate generation relative sliding.Frictional force between surface of contact can provide certain initial holding power to superstructure, plays the effect of power consumption simultaneously.
Vertical earthquake isolating unit is in parallel by the lead core rubber support of at least two equidimension specifications, lead core rubber support is arranged with identical angular slope, its horizontal position is arranged by Central Symmetry mode, the vertical displacement of angle of inclination needed for the vertical load of superstructure and shock insulation is carried out calculating and is determined, adjust between 0 °-90 °, what form one group of space symmetr extends out tubular construction.When vertical earthquake isolating unit adopts more than three or three lead core rubber supports, the projection of each ramped abutment on same level cross section is evenly arranged in circumferentially same, and the diameter of this circumference is determined according to the horizontal dimension size of the horizontal dimension size of shock-proof device, the oblique shift length of ramped abutment and horizontal seismic isolation unit.Ramped abutment upper end is fixedly connected with the hornblock that is rigidly connected, and the angle connecting hornblock is identical with lead core rubber support angle of inclination, and hornblock upper surface keeps level.Under vertical uniform load q, the lead core rubber support generation diagonal distortion of inclination, vertical earthquake isolating unit extends out motion, the distortion of bearing entirety generation vertical elastic, and then the delayed response realizing vertical excitation is to external world transmitted with buffering, thus realizes vertical earthquake isolating.
According to foregoing invention design, the present invention adopts following technical proposals:
A kind of separated type damping energy dissipation three-dimensional shock isolation support, comprises superstructure, middle part cushion cap, infrastructure cushion cap, horizontal seismic isolation bearing, upper friction plate, lower friction plate, Horizontal limiting block, connects hornblock, vertical earthquake isolating bearing; Described superstructure is connected by bolt with horizontal seismic isolation bearing; Horizontal seismic isolation bearing is fixed on the cushion cap of middle part; Middle part cushion cap is fixedly connected with upper friction plate; Described upper friction plate contacts with lower friction plate and can be free to slide; Connecting hornblock is triangular prism cylinder, is fixedly connected with lower friction plate and vertical earthquake isolating bearing respectively; Vertical earthquake isolating bearing is bolted on infrastructure cushion cap; There is certain angle of inclination on described foundation platform surface, and this angle is identical with the angle connecting hornblock, makes connection hornblock upper surface maintenance level; Horizontal limiting block is fixedly connected with middle part cushion cap, prevent friction plate and lower friction plate generation entirety in the same way relative level slide.
The minimum use of described vertical earthquake isolating bearing two, its horizontal position is arranged by Central Symmetry mode, and require to place 2 ~ 10 according to circumference symmetry according to specific design, what form one group of space symmetr extends out tubular construction.
Described vertical earthquake isolating bearing adopts lead core rubber support, every two vertical earthquake isolating bearings and horizontal line are that "eight" shape or " V " font are placed with identical angular slope, the vertical displacement of angle of inclination needed for the vertical load of superstructure and shock insulation is carried out calculating and is determined, adjusts between 0 °-90 °; When being subject to vertical pressure, upper friction plate and lower friction plate occur symmetrical to extend out relative sliding, vertical earthquake isolating bearing generation press-shear deformation.
Described upper friction plate and lower friction plate surface of contact adopt friction material, and the friction factor of different materials changes within the specific limits.
Described horizontal seismic isolation bearing is lead core rubber support.The diameter of described horizontal seismic isolation bearing is greater than vertical earthquake isolating bearing.
The present invention compared with prior art, has following apparent outstanding substantive distinguishing features and remarkable advantage:
1. horizontal seismic isolation unit of the present invention provides less horizontal rigidity, inclination lead core rubber support provides less vertical rigidity by oblique press-shear deformation, shock-proof device can realize level of isolation to vertical earthquake or vibration function, thus realize the object of three-dimensional damping/shake.But three-dimensional isolation device superstructure of the present invention is all protected when having level and vertical motion and vibrations, makes the vibration passing of vibratory equipment obtain effective attenuation, be applicable to building structure, the earthquake of main equipment and vibration protection;
2. the present invention can adjust the angle of inclination of inclination lead core rubber support, and adjust friction factor by the material changing friction plate surface of contact, thus adapt to different displacement and load, and can adjust the composition of this device, relation between the size of this device and bearing capacity is not constant, can meet different load and not change its size;
3. the present invention devises upper and lower friction plate, and under state of equilibrium, the stiction of surface of contact can provide certain vertical initial stiffness; When shaking under outside incentive action/vibrate, friction energy-dissipating effect can be played, significantly accelerate the rate of decay of shake/vibration, enhance isolating affection;
4. in the present invention, vertical earthquake isolating unit and horizontal seismic isolation unit adopt separated type structure, under concrete condition can independent assortment with different requirement of engineering, one of them unit can be adopted separately in some cases to meet concrete needs.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of three-dimensional shock isolation support of the present invention.
Fig. 2 is the structural representation of the embodiment of the present invention 1 three-dimensional shock isolation support.
Fig. 3 is that the present invention connects hornblock schematic diagram.
Fig. 4 is lead core rubber support structural representation of the present invention.
Fig. 5 is vertical earthquake isolating bearing of the present invention and upper and lower friction plate schematic diagram.
Fig. 6 is the structural representation of the embodiment of the present invention 2 three-dimensional shock isolation support.
Embodiment
Details are as follows for the preferred embodiments of the present invention:
embodiment 1:
See Fig. 1 to Fig. 5, a kind of separated type damping energy dissipation three-dimensional shock isolation support, comprises superstructure 1, middle part cushion cap 2, infrastructure cushion cap 3, horizontal seismic isolation bearing 4, upper friction plate 5, lower friction plate 6, Horizontal limiting block 7, connects hornblock 8, vertical earthquake isolating bearing 9; Described superstructure 1 is connected by bolt with horizontal seismic isolation bearing 3; Horizontal seismic isolation bearing 3 is fixed on the cushion cap 2 of middle part; Middle part cushion cap 2 is fixedly connected with upper friction plate 5; Described upper friction plate 5 contacts with lower friction plate 6 and can be free to slide; Connecting hornblock 8 is triangular prism cylinder, is fixedly connected with lower friction plate 6 and vertical earthquake isolating bearing 9 respectively; Vertical earthquake isolating bearing 9 is bolted on infrastructure cushion cap 3; There is certain angle of inclination on described foundation platform 3 surface, and this angle is identical with the angle connecting hornblock 8, makes connection hornblock 8 upper surface maintenance level; Horizontal limiting block 7 is fixedly connected with middle part cushion cap 2, prevent friction plate 5 and lower friction plate 6 occur entirety in the same way relative level slide.
Described upper friction plate 5 adopts friction material with lower friction plate 6 surface of contact, and the friction factor of different materials changes within the specific limits.
Described horizontal seismic isolation bearing 4 is lead core rubber support.The diameter of described horizontal seismic isolation bearing 4 is greater than vertical earthquake isolating bearing 9.
embodiment 2:
The present embodiment is substantially the same manner as Example 1, and specialization is as follows: as shown in Figure 6, and the bearing of vertical earthquake isolating described in the present embodiment 9 uses three, and its horizontal position is arranged by Central Symmetry mode, and what form one group of space symmetr extends out tubular construction.Described vertical earthquake isolating bearing 9 adopts lead core rubber support, every two vertical earthquake isolating bearings 9 are "eight" shape with horizontal line, place with identical angular slope, the vertical displacement of angle of inclination needed for the vertical load of superstructure 1 and shock insulation is carried out calculating and is determined, adjusts between 0 °-90 °; When being subject to vertical pressure, upper friction plate 5 and lower friction plate 6 occur symmetrical to extend out relative sliding, and press-shear deformation occurs vertical earthquake isolating bearing 9.
Under vertical uniform load q, there is diagonal distortion in the vertical earthquake isolating bearing 9 tilted, vertical earthquake isolating unit extends out motion, there is vertical elastic distortion in bearing entirety, and then the delayed response realizing vertical excitation is to external world transmitted with buffering, thus the present embodiment separated type damping energy dissipation three-dimensional isolation device realizes vertical earthquake isolating, because can meet different loads and not change its size, so the relation between the size of three-dimensional isolation device and bearing capacity is not constant.

Claims (6)

1. a separated type damping energy dissipation three-dimensional shock isolation support, comprises superstructure (1), middle part cushion cap (2), infrastructure cushion cap (3), horizontal seismic isolation bearing (4), upper friction plate (5), lower friction plate (6), Horizontal limiting block (7), connects hornblock (8), vertical earthquake isolating bearing (9); It is characterized in that: described superstructure (1) is connected by bolt with horizontal seismic isolation bearing (3); Horizontal seismic isolation bearing (3) is fixed on middle part cushion cap (2); Middle part cushion cap (2) is fixedly connected with upper friction plate (5); Described upper friction plate (5) contacts with lower friction plate (6) and can be free to slide; Connecting hornblock (8) is triangular prism cylinder, is fixedly connected with lower friction plate (6) and vertical earthquake isolating bearing (9) respectively; Vertical earthquake isolating bearing (9) is bolted on infrastructure cushion cap (3); There is certain angle of inclination on described foundation platform (3) surface, and this angle is identical with the angle connecting hornblock (8), makes connection hornblock (8) upper surface keep level; Horizontal limiting block (7) is fixedly connected with middle part cushion cap (2), prevent friction plate (5) and lower friction plate (6) occur entirety in the same way relative level slide.
2. a kind of separated type damping energy dissipation three-dimensional shock isolation support according to claim 1, it is characterized in that: the minimum use of described vertical earthquake isolating bearing (9) two, its horizontal position is arranged by Central Symmetry mode, require to place 2 ~ 10 according to circumference symmetry according to specific design, what form one group of space symmetr extends out tubular construction.
3. a kind of separated type damping energy dissipation three-dimensional shock isolation support according to claim 1, it is characterized in that: described vertical earthquake isolating bearing (9) adopts lead core rubber support, every two vertical earthquake isolating bearings (9) and horizontal line are that "eight" shape or " V " font are placed with identical angular slope, the vertical displacement of angle of inclination needed for the vertical load of superstructure (1) and shock insulation is carried out calculating and is determined, adjusts between 0 °-90 °; When being subject to vertical pressure, upper friction plate (5) and lower friction plate (6) occur symmetrical to extend out relative sliding, vertical earthquake isolating bearing (9) generation press-shear deformation.
4. a kind of separated type damping energy dissipation three-dimensional shock isolation support according to claim 1, is characterized in that: described upper friction plate (5) and lower friction plate (6) surface of contact adopt friction material, and the friction factor of different materials changes within the specific limits.
5. a kind of separated type damping energy dissipation three-dimensional shock isolation support according to claim 1, is characterized in that: described horizontal seismic isolation bearing (4) is lead core rubber support.
6. a kind of separated type damping energy dissipation three-dimensional shock isolation support according to claim 1, is characterized in that: the diameter of described horizontal seismic isolation bearing (4) is greater than vertical earthquake isolating bearing (9).
CN201410722552.3A 2014-12-03 2014-12-03 A kind of separate type damping energy dissipation three-dimensional shock isolation support Active CN104595416B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104947580A (en) * 2015-05-08 2015-09-30 武汉理工大学 One-way slide type anti-seismic and noise reduction rubber support of rail transit bridge
CN104947579A (en) * 2015-05-08 2015-09-30 武汉理工大学 One-way slide type vibration and noise reduction rubber support of rail transit bridge
RU177943U1 (en) * 2017-07-11 2018-03-16 Общество с ограниченной ответственностью "СибТрансСтрой" Supporting part of the bridge
CN110725893A (en) * 2019-08-27 2020-01-24 威固技术(安徽)有限公司 Dynamic vibration absorber with same natural frequency of axial vibration and radial vibration

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CN103122969A (en) * 2013-02-05 2013-05-29 上海大学 Three-dimensional shock isolation device
CN103195168A (en) * 2013-03-26 2013-07-10 东南大学 Composite three-dimensional shock isolation support of sandwich rubber-high damping disc spring
CN103541429A (en) * 2013-11-06 2014-01-29 东南大学 Three-dimensional shock (vibration) insulation support with resistance to tension
CN103850358A (en) * 2014-02-21 2014-06-11 上海大学 Three-dimensional seism isolation system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003269530A (en) * 2002-03-12 2003-09-25 Hitachi Ltd Base isolation device
JP2008208969A (en) * 2007-02-28 2008-09-11 Tera:Kk Three-dimensional vibration removing device
CN201722602U (en) * 2010-07-09 2011-01-26 中国建筑科学研究院 Variable-stiffness vibration-insulation support
CN202148612U (en) * 2011-03-30 2012-02-22 上海昭瑞减震科技有限公司 Three-dimensional earthquake isolation device capable of controlling sway and resisting lift-off
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CN103195168A (en) * 2013-03-26 2013-07-10 东南大学 Composite three-dimensional shock isolation support of sandwich rubber-high damping disc spring
CN103541429A (en) * 2013-11-06 2014-01-29 东南大学 Three-dimensional shock (vibration) insulation support with resistance to tension
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104947580A (en) * 2015-05-08 2015-09-30 武汉理工大学 One-way slide type anti-seismic and noise reduction rubber support of rail transit bridge
CN104947579A (en) * 2015-05-08 2015-09-30 武汉理工大学 One-way slide type vibration and noise reduction rubber support of rail transit bridge
CN104947579B (en) * 2015-05-08 2017-03-08 武汉理工大学 A kind of one-way slide type vibration and noise reducing rubber support of rail traffic bridge
RU177943U1 (en) * 2017-07-11 2018-03-16 Общество с ограниченной ответственностью "СибТрансСтрой" Supporting part of the bridge
CN110725893A (en) * 2019-08-27 2020-01-24 威固技术(安徽)有限公司 Dynamic vibration absorber with same natural frequency of axial vibration and radial vibration

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