CN106285151A - A kind of three-dimensional isolation device of predeterminable vertical early stage rigidity - Google Patents
A kind of three-dimensional isolation device of predeterminable vertical early stage rigidity Download PDFInfo
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- CN106285151A CN106285151A CN201610906426.2A CN201610906426A CN106285151A CN 106285151 A CN106285151 A CN 106285151A CN 201610906426 A CN201610906426 A CN 201610906426A CN 106285151 A CN106285151 A CN 106285151A
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- cable wire
- precompressed cable
- floating
- pressing plate
- disk spring
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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
Abstract
The invention discloses the three-dimensional isolation device of a kind of predeterminable vertical early stage rigidity, this three-dimensional isolation device 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 quantity two groups of precompressed cable wires of at least three respectively and two pieces of floating platens, wherein, two groups of described precompressed cable wires are distributed in linear state in the centre bore of disk spring group 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；By two groups of described precompressed cable wire tensionings, disk spring group is made to 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 isolation device of a kind of predeterminable vertical early stage rigidity, should
The most compressible passive energy dissipation of three-dimensional isolation device, the most stretchable passive energy dissipation, but also maintain in vertical earthquake isolating bearing
Effective active length of disk spring group.
The present invention solves the technical scheme of above-mentioned technical problem:
The three-dimensional isolation device of a kind of predeterminable vertical early stage rigidity, this three-dimensional isolation device 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 disk spring group to set inside, the top of this disk spring group is provided with driving pressing plate；Described laminated rubber shock insulation
The middle part of the lower connecting plate of bearing extends the connecting elements of a circular tube shaped in described fairlead, and this connecting elements drives with described
Dynamic pressure plate is fixing to be connected；Described disk spring group is made up of one group of disk spring overlapping；
It is characterized in that,
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 and two pieces of floating platens, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and disk spring group, and another block is located at the end
Between seat and disk spring group；
Two groups of described precompressed cable wires are symmetrically distributed in described disk spring rotating around the axis of fairlead with linear state
In the centre bore of group, and, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, other end
It is each passed through the floating platen adjacent with base to be fixed on base；One of another group precompressed cable wire is separately fixed at and base
On adjacent floating platen, other end is each passed through and is fixed on the floating platen driving pressing plate adjacent on driving pressing plate；
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；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens erect equal to being compressed to disk spring group preset
Length to early stage rigidity；
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 isolation device 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 dish groups of springs；Work as dynamic loading
During the opposing effect of axis along fairlead, pulling force is delivered to drive pressing plate via tension cable wire, drives and moves on pressing plate, and two groups pre-
Compressed steel Suo Ze two pieces of floating platen relative movement compression dish groups of springs of tractive respectively.As can be seen here, axial dynamic loading no matter phase
Act on three-dimensional isolation device to the most opposing, dish groups of springs can be compressed 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 isolation device of predeterminable vertical early stage rigidity of the present invention, wherein said precompressed cable wire two can
Use conventional method anchoring, it is possible to use and be similar to lifting bolt or connect fixing by the U-shaped component system of bar bending, therefore,
If it is fixing dead that two of described precompressed cable wire all uses anchoring or lifting bolt system connect, then reach to preset the most early
The purpose of phase rigidity, is necessary for precalculating and strictly control the tension force that the length of described precompressed cable wire could be preset, Jin Erda
To the purpose presetting vertical rigidity in early days.But, during actual production is debugged, the described precompressed rope length of control to be used
Method reach to preset the purpose of vertical rigidity in early days and then there are following two hang-ups, one is anchoring or is that the process connect can produce
Error, even if two are to control anchoring or are the produced error of the process connect, but precompressed cable wire is in cut-out, also can in placement process
Cause the change of its characterisitic parameter.In order to solve above-mentioned technical barrier, an improvement project of the present invention is:
The other end of two groups of precompressed cable wires of described vertical earthquake isolating bearing uses cable wire self-locking anchorage to be separately fixed at driving
On pressing plate and base；Described cable wire self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on driving pressing plate or base；Described installing hole is by one section of taper hole and one section of screwed hole group
Becoming, wherein said taper hole is located close to the side of floating platen, and tip points to floating platen, and described screwed hole is located remotely from floating
The side of dynamic pressure plate；
Described jaw is for matching cone with described taper hole, and is made up of 3～5 lobes, and it is internal is provided with folder along axis
Hold the clamping hole of precompressed cable wire；
Described check bolt matches with described screwed hole, and internal is provided with diameter more than described precompressed cable wire along axis
The circular hole of diameter；
Described jaw is arranged in described taper hole, and check bolt is arranged in described screwed hole.
From above-mentioned improvement project, it is separately fixed at described floating platen by one of described two groups of precompressed cable wires
On, other end is passed by the clamping hole of described cable wire self-locking anchorage and circular hole respectively, so can be the fag end system exposed
It is connected on traction stretching machine, while traction stretch-draw, monitors the decrement (being stretch-draw distance) of disk spring group, in order to really
Distance between fixed two pieces of floating platens；Distance between two pieces of floating platens is equal to being compressed to disk spring group meet early
During the length of phase rigidity, turn check bolt and described jaw can be promoted precompressed cable wire clamping locked；During use
Make in vibration processes two groups of precompressed cable wire tensionings repeatedly, loose in the case of also will not loosen.
The three-dimensional isolation device relatively prior art of the predeterminable vertical early stage rigidity 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 one group of disk spring, vertical extension is little, stability
Good.
(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
Earthquake isolating equipment 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), during presetting vertical rigidity in early days, effective active length of described disk spring group is constant, will not change dish
The original characterisitic parameter of shape groups of springs.
(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. 1～6 is the structural representation of a specific embodiment of three-dimensional vibration isolating device of the present invention, and wherein, Fig. 1 is
Front view (section view), Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 1, and Fig. 4 is C-C sectional view, and Fig. 5 is Fig. 1
The enlarged drawing of middle local I, Fig. 6 is the enlarged drawing of local II in Fig. 2.
Fig. 7～9 is the structural representation of second specific embodiment of three-dimensional isolation device of the present invention, wherein, Fig. 7
For front view (section view), Fig. 8 is the D-D sectional view of Fig. 7, and Fig. 9 is the E-E sectional view of Fig. 7.
Figure 10～12 is Fig. 7～the structural representation of cable wire self-locking anchorage in 9 illustrated embodiments, and wherein, Figure 10 is main regarding
Figure (sectional view, double dot dash line signal precompressed cable wire in figure), Figure 11 is top view, and Figure 12 is the F-F sectional view of Figure 10.
Figure 13～15 is the structural representation of the 3rd specific embodiment of three-dimensional vibration isolating device of the present invention, wherein,
Figure 13 is front view (section view), and Figure 14 is the G-G sectional view of Figure 13, and Figure 15 is the H-H sectional view of Figure 13.
Detailed description of the invention
Example 1
The three-dimensional isolation device 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 vibration isolating device 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. 1～6, described vertical earthquake isolating bearing includes fairlead 1, base 3, disk spring group 4 and backpressure device.
Seeing Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is radially shunk and formed spacing and guided work
The annular edge of a wing 2, lower end extend radially outwards formation one ring flange.Described base 3 is discoid, and the edge of surrounding is provided with
Installing hole 13, the described fairlead 1 middle part by the ring flange surface fixed thereon set by lower end.
Seeing Fig. 1～3, described disk spring group 4 is located in fairlead 1, and the upper end of this disk spring group 4 is provided with and institute
Stating the dynamic driving pressing plate 5 coordinated of fairlead 1, wherein said disk spring group 4 is the most vertically overlapped by eight disk springs
Form, the middle part of described lower connecting plate 15 extend in described fairlead 1 circular tube shaped connecting elements 15-1, this connection structure
The lower end of part 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 the annular edge of a wing 2 and between driving pressing plate 5 and the annular edge of a wing 2 and be more than
The gap of amplitude.
Seeing Fig. 1～6, be provided with backpressure device in described fairlead 1, this backpressure device includes two groups of precompressed cable wires and two
Block floating platen；Wherein, two groups of described precompressed cable wires are the first group of precompressed cable wire 8 being made up of three precompressed cable wires and by four
Second group of precompressed cable wire 9 of root precompressed cable wire composition；Two pieces of described floating platens are for being located at described driving pressing plate 5 and dish bullet
The first floating platen 6 between spring group 4 and the second floating platen 7 being located between base 3 and disk spring group 4；
Seeing Fig. 1～6, described two groups of precompressed cable wires are distributed in described with linear state respectively around fairlead 1 axisymmetrical
In the centre bore of disk spring group 4, each precompressed cable wire is each parallel to fairlead 1 axis, and first group of precompressed cable wire 8 is away from leading
Distance to set axis is less than second group of precompressed cable wire 9 distance away from fairlead axis；Wherein, described first group of precompressed cable wire 8
Following be fixed on the second floating platen 7 by lifting bolt 12 respectively, top is each passed through the first floating platen 6 by suspension ring spiral shell
Nail 12 is fixed on described driving pressing plate 5；The top of described second group of precompressed cable wire 9 is fixed on first by lifting bolt 12 respectively
On floating platen 6, following is fixing on the base 3 by lifting bolt 12 through the second floating platen 7；Described first floating platen 6
On be provided with in the position that each first group of precompressed cable wire 8 passes for its first through hole 10 passed through, the hole of this first through hole 10
Footpath is more than the diameter of described first group of precompressed cable wire 8；Wear at each second group of precompressed cable wire 9 on described second floating platen 7
The position crossed is provided with for its second through hole 11 passed through, and the aperture of this second through hole 11 is more than described second group of precompressed cable wire 9
Diameter；The method that described tension cable wire and two of precompressed cable wire are fixed in respective members by lifting bolt is: by suspension ring
Screw 12 is fixed on corresponding component, is then to be connected on the suspension ring of lifting bolt by one of precompressed cable wire, and by steel wire
Rope clamp (being not drawn in figure) is fixing dead.
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.
See Fig. 1～3, in order to realize the purpose of predeterminable vertical early stage rigidity, above-mentioned three-dimensional isolation device installation method
As follows: according to the coefficient of elasticity of vertical rigidity and the disk spring group 4 in early days that need to preset, (1) first determines that disk spring group 4 is compressed
Amount, and then calculate the length of the satisfied vertical rigidity requirement in early days of each precompressed cable wire 9；(2) Fig. 1～3 is pressed by disk spring
Group 4, backpressure device and driving pressing plate 5 connect, and regulation makes physical length and the calculating length of each precompressed cable wire the most repeatedly
Spend equal and fixing dead with common rope cramp (no display in figure), disk spring group 4 is clamped in all the time the first floating pressure
Between plate 6 and the second floating platen 7, for ease of operation, need during this to compress disk spring group 4, expose precompressed cable wire two
The fixing point of head；(3) parts that step (2) assembles are put into fairlead 1, and be directed to overlap 1 and be fixed on one with base 3
Rise, the lower connecting plate 15 of described laminated rubber damping bearing is fixed together with driving pressing plate 5；(4) finally pressing Fig. 1 and 4 will
The miscellaneous part of laminated rubber damping bearing is arranged on the top of described lower connecting plate 15, obtains described three-dimensional isolation device.
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 isolation device 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 isolation device 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 disk spring group 4, and building is motionless with shifting on ground for base 3；If this dynamic loading
The drop-down base of axis 3 along fairlead 1, described two groups of precompressed cable wires two pieces of floating platen relative movement compression dishes of tractive respectively
Groups of springs 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, indulge when earthquake
Ripple make ground occur up-down vibration time the most compressible disk spring group produce elastic deformation and consume energy.In like manner, building shakes at wind
Or when rocking under the effect of flatly seismic wave, be no matter pulling force or pressure to it to the dynamic loading that described three-dimensional isolation device produces
Power the most compressible disk spring group produces elastic deformation and consumes energy.
Example 2
This example and example 1 have to be distinguished as follows:
See Fig. 7～9, described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 to be formed by three precompressed cable wires.
Further, first group of precompressed cable wire 8 distance away from fairlead axis is equal to second group of precompressed cable wire 9 distance away from fairlead axis.
See Fig. 7～9, the top of first group of described precompressed cable wire 8 and the following of second group of precompressed cable wire 9 to be respectively adopted
Lifting bolt in cable wire self-locking anchorage 18 alternative 1 is fixed on described driving pressing plate 5 and base 3.
Seeing Figure 10～12, and combine Fig. 7, described cable wire self-locking anchorage 18 is by the installation being arranged on installing plate 18-1
Hole, jaw 18-2 and check bolt 18-4 are constituted, and wherein, described installing plate 18-1 is driving pressing plate 5 or base 3.Described
The straight line conllinear at the axis of installing hole and corresponding precompressed cable wire place；Described installing hole is by one section of taper hole and one section of screwed hole
Composition, wherein said taper hole is located close to the side of floating platen, and tip points to institute's floating platen, and screwed hole is located remotely from floating
Dynamic pressure plate side.Described jaw 18-2 is for matching cone with described taper hole, and is made up of 3 lobes, and it is internal sets along axis
There is the clamping hole 18-3 clamping corresponding precompressed cable wire.Described check bolt 18-4 matches with described screwed hole, and internal edge
Axis is provided with the diameter circular hole 18-5 more than corresponding precompressed rope diameter.Described jaw 18-2 is arranged in described taper hole, anti-
Pine bolt 18-4 is arranged in described screwed hole；The other end of corresponding precompressed cable wire is clamped in described clamping hole 18-3
In, and end passes from the circular hole 18-5 of corresponding check bolt 18-4.
By the scheme of this example, the lower connecting plate 15 of described vertical earthquake isolating bearing and laminated rubber damping bearing is assembled,
The first group of precompressed cable wire 8 exposed and the head system of second group of precompressed cable wire 9 are connected on traction stretching machine, are drawing the same of stretch-draw
Time monitoring disk spring group 4 decrement (being stretch-draw distance), in order to determine the distance between two pieces of floating platens；When two pieces
Distance between floating platen, equal to being compressed to disk spring group meet the length of rigidity in early days constantly, turns check bolt
18-4 can promote described jaw 18-2 to be clamped and locked by precompressed cable wire, thus disk spring group 4 is clamped in first all the time
Between floating platen 6 and the second floating platen 7；Hereafter, other parts of laminated rubber damping bearing are assembled i.e. obtain this example
Described three-dimensional isolation device.
This example is above-mentioned same as Example 1 with implementation.
Example 3
Seeing Figure 13～15, 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.
This example other embodiment other than the above is same as Example 2.
Claims (3)
1. a three-dimensional isolation device for predeterminable vertical early stage rigidity, this three-dimensional isolation device includes that be sequentially connected in series up and down folds
Layer rubber earthquake isolation support 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 disk spring group, and the top of this disk spring group is provided with driving pressing plate；Described laminated rubber damping bearing
The middle part of lower connecting plate in described fairlead, extend the connecting elements of a circular tube shaped, this connecting elements and described driving pressure
Plate is fixing to be connected；Described disk spring group is made up of one group of disk spring overlapping；
It is characterized in that,
Being additionally provided with backpressure device in the fairlead of described vertical earthquake isolating bearing, this backpressure device includes quantity at least three respectively
Two groups of precompressed cable wires and two pieces of floating platens, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and disk spring group, another block be located at base with
Between disk spring group；
Two groups of described precompressed cable wires are symmetrically distributed in described disk spring group rotating around the axis of fairlead with linear state
In centre bore, and, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, and other end is respectively
It is fixed on base through the floating platen adjacent with base；One of another group precompressed cable wire is separately fixed at adjacent with base
Floating platen on, other end be each passed through be fixed on the floating platen driving pressing plate adjacent driving pressing plate on；
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；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens equal to being compressed to disk spring group preset vertical morning
The length of phase rigidity；
By described tension cable wire tensioning, provide the precompression equal to design dead load for laminated rubber bearing.
The three-dimensional isolation device of a kind of predeterminable vertical early stage rigidity the most according to claim 1, it is characterised in that described
Tension cable wire and precompressed cable wire be steel wire rope or prestressing force steel hinge line.
The three-dimensional isolation device of a kind of predeterminable vertical early stage rigidity the most according to claim 1 and 2, it is characterised in that
The other end of two groups of precompressed cable wires of described vertical earthquake isolating bearing uses cable wire self-locking anchorage to be separately fixed at driving pressing plate and the end
On seat；Described cable wire self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on driving pressing plate or base；Described installing hole is made up of one section of taper hole and one section of screwed hole,
Wherein said taper hole is located close to the side of floating platen, and tip points to floating platen, and described screwed hole is located remotely from floating
The side of pressing plate；
Described jaw is for matching cone with described taper hole, and is made up of 3～5 lobes, and it is internal, and to be provided with clamping along axis pre-
The clamping hole of compressed steel rope；
Described check bolt matches with described screwed hole, and internal is provided with diameter more than described precompressed rope diameter along axis
Circular hole；
Described jaw is arranged in described taper hole, and check bolt is arranged in described screwed hole.
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| US20090191007A1 (en) * | 2008-01-29 | 2009-07-30 | Seegmiller Ben L | Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts |
| 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 |
| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100223A (en) * | 1987-02-07 | 1987-08-12 | 华东建筑设计院 | Prestressed damping spring vibration-reducing apparatus |
| CN2095901U (en) * | 1991-04-23 | 1992-02-12 | 唐山工程技术学院 | Carbon steel wire anchor |
| US6098970A (en) * | 1997-09-22 | 2000-08-08 | Winston Lowe | Spring breakage safety system |
| 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 |
| US20090191007A1 (en) * | 2008-01-29 | 2009-07-30 | Seegmiller Ben L | Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts |
| 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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