CN106285144A - The three-dimensional shock isolation support that a kind of vertical early stage rigidity can regulate - Google Patents
The three-dimensional shock isolation support that a kind of vertical early stage rigidity can regulate Download PDFInfo
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- CN106285144A CN106285144A CN201610902485.2A CN201610902485A CN106285144A CN 106285144 A CN106285144 A CN 106285144A CN 201610902485 A CN201610902485 A CN 201610902485A CN 106285144 A CN106285144 A CN 106285144A
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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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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Abstract
The invention discloses the three-dimensional shock isolation support that a kind of vertical early stage rigidity can regulate, this three-dimensional shock isolation support includes laminated rubber damping bearing and the vertical earthquake isolating bearing being sequentially connected in series up and down；It is characterized in that, it is additionally provided with backpressure device in the fairlead of described vertical earthquake isolating bearing, this backpressure device includes two groups of precompressed cable wires and two pieces of floating platens, wherein, two groups of described precompressed cable wires are distributed between complex spring and fairlead respectively, and, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, and other end is each passed through the floating platen adjacent with base and is fixed on base；One of another group precompressed cable wire is separately fixed on the floating platen adjacent with base, and other end is each passed through and is fixed on the floating platen driving pressing plate adjacent on driving pressing plate；On each precompressed cable wire, all string has wire tensioner；Two groups of precompressed cable wires described in tensioning, make complex spring be clamped in all the time between two pieces of floating platens.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, be specifically related to one by laminated steel and rubber pillow with perpendicular
Three-dimensional isolation device to shock isolating pedestal series connection.
Background technology
Earthquake isolating equipment is the shockproof isolating device being located between building and basis.Earthquake isolating equipment in early days is mainly by rubber
The two-dimentional shock isolating pedestal (laminated rubber damping bearing) being superimposed to form with sheet metal, can only the level of seismic wave isolator divide
Amount.The raising recognized earthquake Multi-attributes along with people, three-dimensional isolation device is gradually paid attention to by this area researcher.?
Common three-dimensional isolation device is exactly to be in series with existing vertical earthquake isolating bearing by laminated rubber damping bearing.
The application for a patent for invention of Publication No. CN 102409777 A discloses a kind of structure three-dimensional shock insulation and antidumping dress
Putting, the main body mechanism of this device is in series with spring shock-proof bearing 15 by laminated rubber damping bearing 14, described agent structure
Upper and lower side be respectively arranged with upper junction plate 1 and lower connecting plate 18, it is characterised in that: described upper junction plate 1 and lower connecting plate 18
Between be provided with around the agent structure surrounding uniform tensile steel wire rope 16 of dislocation, described tensile steel wire rope 16 pole in the horizontal direction
Limit deflection is more than the horizontal shear elastic deformation amount of main body mechanism.Although scheme can improve three-dimensional isolation described in this patent application
The tensile strength of device, waves, with resist earthquake middle-high building thing, the produced huge pulling force that even topples, but still deposits
Deficiency following: 1, described spring shock-proof bearing can only compress energy-dissipating and shock-absorbing, it is impossible to stretching energy-dissipating and shock-absorbing；2, described bullet
Spring shock isolating pedestal can not preset rigidity in early days, is not easy to preset earthquake intensity and reduces shock insulation cost.
The application for a patent for invention of Publication No. CN1932324A discloses one, and " adjustable disc-shape spring mechanical damping hinders
Buddhist nun's device ", this antivibrator includes shell, sets load connecting rod in the enclosure and two groups of disk springs, described, and described load connects
The middle part of bar is provided with the regulation gear being connected therewith, the load connecting rod of described regulation gear both sides is respectively equipped with load even
The left-handed nut of extension bar threaded engagement and right-handed nut, described two groups of disk springs are respectively provided at described left-handed nut and dextrorotation spiral shell
Female outside, and be clamped in respectively between described left-handed nut or right-handed nut and the shrouding of outer casing end.Switch is only needed to carry
Regulation gear in lotus connecting rod, makes described left-handed nut and right-handed nut mutually draw close or away from i.e. two groups of dish bullets of scalable
The pretightning force of spring thus the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invention still has following deficiency: 1, described load connecting rod is to keep balance under the common effect of two groups of disk springs, and two
Although the pretightning force of group disk spring can regulate, but in any case regulation, two groups of disk springs work to load connecting rod
It is firmly all one group of power equal in magnitude, in opposite direction, only need to apply any external force in load connecting rod and all can destroy this
Balance, makes two groups of disk springs deform, so described antivibrator cannot preset rigidity in early days；2, this invention must be joined
Closing and use two groups of disk springs, could all be provided damping when load is pressed or drawn to antivibrator, this not only causes certain
Waste, also makes the length of antivibrator greatly increase.
The application for a patent for invention of Publication No. CN101457553A discloses one, and " spring stiffness adjustable tuning quality subtracts
Shake device ", this vibroshock is a kind of composite buffer, changes its characteristic frequency by changing the thickness of mass, viscous by changing
The flow of the working media of stagnant antivibrator changes its damping ratio, changes its rigidity by the effective active length changing spring, its
The means of effective active length of middle change spring have three kinds, and one is use curing materials that spring is positioned at solidification cylinder one section
Solidification, two toward constraint block of filling in intracardiac in helical spring, and the two interference fit, makes the one section of spring contacted with constraint block
Losing efficacy, three is in constraint block surface configuration helical raised, helical raised is stuck between spring wire, makes to block between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in this patent application scheme can change rigidity, but institute
The spring stated not only effectively active length substantially shortens, and can only compress passive energy dissipation, it is impossible to stretching passive energy dissipation.
Summary of the invention
The technical problem to be solved is to provide the three-dimensional shock isolation support that a kind of vertical early stage rigidity can regulate,
The most compressible passive energy dissipation of this three-dimensional shock isolation support, the most stretchable passive energy dissipation, but also maintain vertical earthquake isolating bearing
Effective active length of middle spring.
The present invention solves the technical scheme of above-mentioned technical problem:
The three-dimensional shock isolation support that a kind of vertical early stage rigidity can regulate, this three-dimensional shock isolation support includes being sequentially connected in series up and down
Laminated rubber damping bearing and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing includes upper junction plate, lower connecting plate, is clamped in be vertically connected with between plate folded
Layer rubber blanket and at least three tension cable wires being distributed on laminated rubber bearing surrounding；One company of being fixed on of described tension cable wire
On fishplate bar, other end is fixed on lower connecting plate, and the line of upper and lower two fixing points is parallel to the axis of described laminated rubber bearing
Line；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described lead
Being coaxially provided with spring to set inside, the top of this spring is provided with driving pressing plate；The lower connection of described laminated rubber damping bearing
The middle part of plate forms a projection to described fairlead sunken inside, and the lower end of this projection is fixing with described driving pressing plate to be connected；
It is characterized in that,
Described spring is complex spring (full name is rubber-metal spiral complex spring), and the external diameter of this complex spring is less than
The internal diameter of fairlead, forms therebetween an annular space；
Being additionally provided with backpressure device in the fairlead of described vertical earthquake isolating bearing, this backpressure device includes that quantity is at least respectively
Two groups of precompressed cable wires of three, two pieces of floating platens and quantity are the wire tensioner of described two groups of precompressed cable wire sums, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and complex spring, and another block is located at base
And between complex spring；
Two groups of described precompressed cable wires are symmetrically distributed in described annular space rotating around the axis of fairlead with linear state
In, and, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, other end be each passed through with
The floating platen that base is adjacent is fixed on base；One of another group precompressed cable wire is separately fixed at the floating adjacent with base
On pressing plate, other end is each passed through and is fixed on the floating platen driving pressing plate adjacent on driving pressing plate；
Described wire tensioner is serially connected in the middle part of described precompressed cable wire；
It is being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire on described floating platen,
The aperture of this through hole is more than the diameter of worn precompressed cable wire；
Dynamic cooperation it is respectively adopted between described fairlead and two pieces of floating platens；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens equal to being compressed to complex spring preset vertically
The length of rigidity in early days；
By described tension cable wire tensioning, provide the precompression equal to design dead load for laminated rubber bearing.
In such scheme, described tension cable wire and precompressed cable wire can be steel wire ropes, it is also possible to be prestressing force steel hinge line.
The operation principle of above-mentioned three-dimensional shock isolation support vertical earthquake isolating is as follows: when vertical dynamic loading is relative along the axis of fairlead
During effect, pressure is delivered to drive pressing plate via laminated rubber damping bearing, is allowed to move down compression combined spring；When dynamic loading edge
During the opposing effect of the axis of fairlead, pulling force is delivered to drive pressing plate via tension cable wire, drives and moves on pressing plate, and two groups of precompressed
Cable wire then distinguishes two pieces of compression combined springs of floating platen relative movement of tractive.As can be seen here, axial dynamic loading is the most also
It is opposing to act on three-dimensional shock isolation support, can compression combined spring so that it is occur elastic deformation to consume energy.
Hole from the through hole on above-mentioned operation principle, the precompressed cable wire described in work process and described floating platen
Wall can not produce friction, otherwise interferes with moving up and down of floating platen, and the most described through-hole diameter is than described precompressed cable wire
Diameter how many greatly, should be advisable not disturb and to affect moving up and down of floating platen.
The three-dimensional shock isolation support that vertical early stage rigidity of the present invention can regulate, wherein said precompressed cable wire two
The method anchoring of routine can be used, it is possible to use and be similar to lifting bolt or connect fixing by the U-shaped component system of bar bending.
For preventing described complex spring two from sliding on described floating platen, another improvement project of the present invention is:
Being respectively equipped with a locating ring on the surface that described two pieces of floating platens are relative, two of described complex spring is embedded in described respectively
In locating ring.
The vertical in early days three-dimensional shock isolation support relatively prior art that rigidity can regulate of the present invention has the effect that
(1) in the vertical direction, the most compressible energy-dissipating and shock-absorbing, the most stretchable energy-dissipating and shock-absorbing；Can build by effective depletion high level
Build the huge pulling force that building foundation is produced by thing owing to waving；And only needing a spring, vertical extension is little, good stability.
(2) after vertical dynamic loading is more than the defensive ability/resistance ability of the vertical rigidity in early days preset, in the present invention, vertical earthquake isolating props up
The bidirectional elastic deformation symmetry of seat, does not the most affect the effect of its compression power consumption because of the change of the positive negative direction of vertical load
Really；
(3) as long as the length changing two groups of precompressed cable wires can change the vertical rigidity in early days of whole device, external force gram
Shock isolating pedestal cannot be made to produce vertical deformation before taking this vertical rigidity in early days, effectively inhibit building at small earthquake and weak
Under the effect that wind shakes, generation is rocked, the shockproof grade of wind resistance of predeterminable building, significantly reduces the shockproof cost of wind resistance；
(4) regulate described wire tensioner, the length of precompressed cable wire can be changed, and then change antivibrator rigidity in early days,
But effective active length of described complex spring is constant, the original characterisitic parameter of complex spring will not be changed.
(5) thing that can effectively buffer building rocks stretching and the compression shock that building basis is produced by trend, further
Reduce the risk that building topples.
Accompanying drawing explanation
Fig. 1～7 is the structural representation of a specific embodiment of three-dimensional shock isolation support of the present invention, and wherein, Fig. 1 is
Front view (section view), Fig. 2 is the A-A sectional view (omitting wire tensioner in figure) of Fig. 1, and Fig. 3 is that the B-B sectional view of Fig. 1 is (in figure
Omit wire tensioner), Fig. 4 is C-C sectional view, and Fig. 5 is the enlarged drawing of local I in Fig. 1, and Fig. 6 is the amplification of local II in Fig. 1
Figure, Fig. 7 is the enlarged drawing of local III in Fig. 2.
Fig. 8～10 is the structural representation of second specific embodiment of three-dimensional shock isolation support of the present invention, wherein, and figure
8 is front view (section view), and Fig. 9 is the D-D sectional view (omitting wire tensioner in figure) of Fig. 8, and Figure 10 is the E-E sectional view of Fig. 8
(figure omits wire tensioner).
Figure 11～13 is the structural representation of the 3rd specific embodiment of three-dimensional shock isolation support of the present invention, wherein,
Figure 11 is front view (section view), and Figure 12 is the F-F sectional view (omitting wire tensioner in figure) of Figure 11, and Figure 13 is the G-G of Figure 11
Sectional view (omits wire tensioner) in figure.
Detailed description of the invention
Example 1
The three-dimensional shock isolation support seen in Fig. 1, this example is propped up by the laminated rubber damping bearing connected up and down and vertical earthquake isolating
Seat composition.
See Fig. 1 and Fig. 4, described laminated rubber damping bearing includes upper junction plate 14, lower connecting plate 15, be clamped on
Laminated rubber bearing 17 between lower connecting plate and six roots of sensation tension cable wire 16；Wherein, described upper junction plate 14 and lower connecting plate 15
The most in the form of annular discs, the edge of upper junction plate 14 is provided with installing hole 13；The main body of described laminated rubber bearing 17 is by one layer of rubber 17-1
After being superimposed with one layer of steel plate 17-2, molded vulcanization is constituted, and its periphery self-assembling formation rubber is protected during molded vulcanization
Sheath 17-3.The both ends of the surface up and down of described laminated rubber bearing 17 main body are equipped with and extremely vulcanize the connection steel plate linked together
17-4, described two pieces of connection steel plate 17-4 are fixed together by screw with upper junction plate 14 and lower connecting plate 15 respectively.
Described six roots of sensation tension cable wire 16 is symmetrically distributed in its surrounding around the axis of laminated rubber bearing 17, each tension cable wire 16
One is fixed on upper junction plate 14 by lifting bolt 12, and other end is fixed on lower connecting plate 15 by lifting bolt 12.Each
Root tension cable wire 16 tensioning, makes the design that the tension force sum of six roots of sensation tension cable wire 16 is vertical equal to three-dimensional shock isolation support described in this example
After dead load, and tensioning, each tension cable wire 16 is each parallel to the axis of laminated rubber bearing 17.
Seeing Fig. 1～7, described vertical earthquake isolating bearing includes fairlead 1, base 3, complex spring 4 and backpressure device.
Seeing Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is to the annular envelope being provided with spacing and guide effect
Lid 2.Described base 3 is discoid, and the edge of surrounding is provided with installing hole 13, and described fairlead 1 lower end is fixed by screw
The middle part on surface thereon.
Seeing Fig. 1～3, described complex spring 4 is by cylindrical helical compression spring 4-1 and is wrapped in cylindrical helical compression
Rubber spring 4-2 composite sulfuration outside spring 4-1 forms.Described complex spring 4 is coaxially located in fairlead 1, this compound bullet
The upper end of spring 4 is provided with and the described dynamic driving pressing plate 5 coordinated of fairlead 1.The external diameter of described complex spring 4 is less than fairlead 1
Internal diameter, forms an annular space between.The middle part of described lower connecting plate 15 forms a tea to described fairlead 1 sunken inside
The protruding 15-1 of cup-shaped, the lower end of this projection 15-1 is fixed together by screw with described driving pressing plate 5.
See Fig. 1, be provided with between lower connecting plate 15 and annular capping 2 and between driving pressing plate 5 and annular capping 2 and be more than
The gap of amplitude.
See Fig. 1～7, in described fairlead 1, be provided with backpressure device, this backpressure device include two groups of precompressed cable wires, two
Block floating platen and eight wire tensioners 19；Wherein, two groups of described precompressed cable wires are be made up of three precompressed cable wires
One group of precompressed cable wire 8 and the second group of precompressed cable wire 9 being made up of five precompressed cable wires；Two pieces of described floating platens are for being located at
State the second floating driving the first floating platen 6 between pressing plate 5 and complex spring 4 and being located between base 3 and complex spring 4
Pressing plate 7, these two pieces of floating platens are dynamic with the inwall of fairlead 1 respectively to be coordinated；
Seeing Fig. 1～7, described two groups of precompressed cable wires are distributed in described with linear state respectively around fairlead 1 axisymmetrical
In annular space, each precompressed cable wire is each parallel to fairlead 1 axis, and first group of precompressed cable wire 8 is away from fairlead axis
Distance is equal to second group of precompressed cable wire 9 distance away from fairlead axis；Wherein, the following of described first group of precompressed cable wire 8 is respectively
Being fixed on the second floating platen 7 by lifting bolt 12, top is each passed through the first floating platen 6 and is fixed on by lifting bolt 12
On described driving pressing plate 5；The top of described second group of precompressed cable wire 9 is fixed on the first floating platen 6 by lifting bolt 12 respectively
On, following is fixing on the base 3 by lifting bolt 12 through the second floating platen 7；At each on described first floating platen 6
The position that first group of precompressed cable wire 8 passes is provided with for its first through hole 10 passed through, and the aperture of this first through hole 10 is more than described
The diameter of first group of precompressed cable wire 8；Set in the position that each second group of precompressed cable wire 9 passes on described second floating platen 7
Having for its second through hole 11 passed through, the aperture of this second through hole 11 is more than the diameter of described second group of precompressed cable wire 9；Described
The method that two of tension cable wire and precompressed cable wire is fixed in respective members by lifting bolt is: be fixed on by lifting bolt 12
On corresponding component, it is then to be connected on the suspension ring of lifting bolt by one of precompressed cable wire, and (figure is not drawn by rope cramp
Go out) fixing dead.
Participating in Fig. 1, eight described wire tensioners 19 are serially connected in the middle part of each precompressed cable wire, series-mounting respectively
For: each precompressed cable wire is blocked from middle part, is then connected on corresponding wire tensioner by blocking formed two fag end system
On the connection ring at 19 two and fixing dead with rope cramp (for drawing in figure).
Described tension cable wire and precompressed cable wire in this example can be steel wire ropes, it is also possible to be prestressing force steel hinge line, tool
When body is implemented, can choose the most voluntarily.
Seeing Fig. 1～3 and Fig. 6, the surface that described first floating platen 6 is relative with the second floating platen 7 is equipped with internal diameter
The locating ring 18 matched with the external diameter of complex spring 4, described complex spring 4 two is embedded in the first floating platen 6 and respectively
In locating ring 18 on two floating platens 7.
See Fig. 1～3, in order to realize the purpose of predeterminable vertical early stage rigidity, above-mentioned three-dimensional shock isolation support installation method
As follows: the backpressure device in antivibrator described in this example, driving pressing plate 5, base 3 and complex spring 4 are assembled by (1) as Fig. 1～7
Good；(2) two of the parts of step (1) gained is applied pressure, make described complex spring 4 compress, simultaneously two pieces of floatings of detection
Distance between pressing plate；(3) distance between two pieces of floating platens is equal to being compressed to cylindrical composite spring 4 meet vertically
(this length can be according to the characterisitic parameter of cylindrical composite spring 4 and the vertical rigidity in early days that need to preset for the length of rigidity in early days
Be calculated) time regulation wire tensioner 19, make each precompressed cable wire tensioning, then cancel the pressure applied in step (2)
Power, described complex spring 4 will be clamped in the first floating platen 6 and the second floating platen 7 by described two groups of precompressed cable wires all the time
Between；(4) put fairlead 1, load onto annular capping 2 and the lower connecting plate 15 of laminated rubber damping bearing the most successively；(5)
By Fig. 1 and 4, the miscellaneous part of laminated rubber damping bearing is arranged on the top of described lower connecting plate 15 afterwards, obtains described three-dimensional
Shock isolating pedestal.
When presetting vertical rigidity in early days, the tension force sum of two groups of precompressed cable wires need to be more than or equal to described three-dimensional shock isolation support institute
The erect static load lotus born.
Under ideal conditions, the vertical ripple of earthquake should be unable to be occurred by earthquake isolating equipment building when building is transmitted
Displacement.Based on this, the operation principle of this example three-dimensional shock isolation support vertical earthquake isolating is as follows: see Fig. 1, when the vertical ripple of earthquake is produced
When raw dynamic loading overcomes described vertical early stage rigidity, if this dynamic loading pushes away base 3 along the axis of fairlead 1, drive
The counteracting force of pressing plate 5 compresses downwards complex spring 4, and building is motionless with shifting on ground for base 3；If this dynamic loading edge
The drop-down base of axis 3 of fairlead 1, described two groups of precompressed cable wires two pieces of compression combined bullets of floating platen relative movement of tractive respectively
Spring 4, base 3 is then away from driving pressing plate 5 to move down with ground, and now building is the most motionless.As can be seen here, make when P wave
During the generation up-down vibration of ground, the most compressible complex spring produces elastic deformation and consumes energy.In like manner, building shakes or level at wind
When rocking under the effect of seismic wave, it is no matter pulling force or pressure to it to the dynamic loading that described three-dimensional shock isolation support produces
Compression combined spring produces elastic deformation and consumes energy.
Example 2
This example and example 1 have to be distinguished as follows:
See Fig. 8～10, described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 to be formed by three precompressed cable wires.
The quantity of described wire tensioner 19 is kept to six, and is serially connected in the middle part of each precompressed cable wire respectively.
This example is above-mentioned same as Example 1 with implementation.
Example 3
Seeing Figure 11～13, this example is described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 with the difference of example 2
By five precompressed cable wire compositions.The quantity of described wire tensioner 19 is kept to ten, and is serially connected in each pre-compressed steel respectively
The middle part of rope.
This example other embodiment other than the above is same as Example 2.
Claims (3)
1. the three-dimensional shock isolation support that vertical early stage rigidity can regulate, this three-dimensional shock isolation support includes being sequentially connected in series up and down
Laminated rubber damping bearing and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing includes upper junction plate, lower connecting plate, is clamped in the lamination rubber being vertically connected with between plate
Rubber cushion and at least three tension cable wires being distributed on laminated rubber bearing surrounding；One of described tension cable wire is fixed on upper junction plate
On, other end is fixed on lower connecting plate, and the line of upper and lower two fixing points is parallel to the axis of described laminated rubber bearing；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described fairlead
Inside is coaxially provided with spring, and the top of this spring is provided with driving pressing plate；The lower connecting plate of described laminated rubber damping bearing
Middle part forms a projection to described fairlead sunken inside, and the lower end of this projection is fixing with described driving pressing plate to be connected；
It is characterized in that,
Described spring is complex spring, and the external diameter of this complex spring, less than the internal diameter of fairlead, forms therebetween an annular
Space；
Being additionally provided with backpressure device in the fairlead of described vertical earthquake isolating bearing, this backpressure device includes quantity at least three respectively
The wire tensioner that two groups of precompressed cable wires, two pieces of floating platens and quantity are described two groups of precompressed cable wire sums, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and complex spring, and another block is located at base with multiple
Close between spring；
Two groups of described precompressed cable wires are symmetrically distributed in described annular space with linear state rotating around the axis of fairlead,
And, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, and other end is each passed through and the end
The adjacent floating platen of seat is fixed on base；One of another group precompressed cable wire is separately fixed at the floating pressure adjacent with base
On plate, other end is each passed through and is fixed on the floating platen driving pressing plate adjacent on driving pressing plate；
Described wire tensioner is serially connected in the middle part of described precompressed cable wire；
Being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire on described floating platen, this leads to
The aperture in hole is more than the diameter of worn precompressed cable wire；
Dynamic cooperation it is respectively adopted between described fairlead and two pieces of floating platens；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens equal to being compressed to complex spring preset vertical early stage
The length of rigidity；
By described tension cable wire tensioning, provide the precompression equal to design dead load for laminated rubber bearing.
The three-dimensional shock isolation support that a kind of vertical early stage rigidity the most according to claim 1 can regulate, it is characterised in that institute
The tension cable wire stated and precompressed cable wire are steel wire rope or prestressing force steel hinge line.
The three-dimensional shock isolation support that a kind of vertical early stage rigidity the most according to claim 1 and 2 can regulate, its feature exists
In, the surface that described two pieces of floating platens are relative is respectively equipped with a locating ring, two of described complex spring is embedded in institute respectively
In the locating ring stated.
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| US5881507A (en) * | 1996-07-19 | 1999-03-16 | Korea Atomic Energy Research Institute | Integrated horizontal and vertical seismic isolation bearing |
| CN2837412Y (en) * | 2005-06-09 | 2006-11-15 | 上海环星减振器有限公司 | Displacement-compensation vibration-isolation buffer |
| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN201460241U (en) * | 2009-07-09 | 2010-05-12 | 北京公科固桥技术有限公司 | Prestress high-strength steel mesh anchorage |
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