CN106284730A - The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset - Google Patents
The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset Download PDFInfo
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- CN106284730A CN106284730A CN201610902528.7A CN201610902528A CN106284730A CN 106284730 A CN106284730 A CN 106284730A CN 201610902528 A CN201610902528 A CN 201610902528A CN 106284730 A CN106284730 A CN 106284730A
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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 isolation device that a kind of vertical early stage rigidity can be preset, 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 between the two end plates of described vertical earthquake isolating bearing, this backpressure device includes two groups of precompressed cable wires and two pieces of floating platens, and wherein, two pieces of described floating platens are respectively sleeved on one piece of guide post between end plate and cylindrical helical compression spring；Two groups of described precompressed cable wires are symmetrically distributed in the surrounding of described cylindrical helical compression spring rotating around the axis of guide post with linear state, and, one of each group of precompressed cable wire is separately fixed on one piece of floating platen, and other end is each passed through another block floating platen and is fixed on the end plate adjacent with this floating platen；Two groups of precompressed cable wires described in tensioning, make cylindrical helical compression 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 isolation device that a kind of vertical early stage rigidity can be preset, 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 cylindrical helical compression spring.
The present invention solves the technical scheme of above-mentioned technical problem:
The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset, 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 about two pieces two end plates, is provided with cylindrical spiral shell between described two end plates
Rotation compression spring, one of end plate is fixed with guide post, and this guide post is along described cylindrical helical compression spring
Central hole passes another end plate；The lower connecting plate of described laminated rubber damping bearing is solid with the upper head plate of described vertical earthquake isolating bearing
Fixed connection；It is characterized in that,
Being additionally provided with backpressure device between described two end plates, this backpressure device includes that quantity is at least the two of three respectively
Group precompressed cable wire and two pieces of floating platens, wherein,
Two pieces of described floating platens are respectively sleeved at one piece of guide post between end plate and cylindrical helical compression spring
On；
Two groups of described precompressed cable wires are symmetrically distributed in described cylindrical spiral shell rotating around the axis of guide post with linear state
The surrounding of rotation compression spring, and, of each group of precompressed cable wire is separately fixed on one piece of floating platen, and other end is worn respectively
Cross another block floating platen to be fixed on the end plate adjacent with this floating platen；
It is being respectively equipped with, on described floating platen, the through hole wearing this precompressed cable wire through the position of described precompressed cable wire,
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 compress equal to by cylindrical helical compression spring
To the length presetting vertical 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 isolation device vertical earthquake isolating is as follows: when vertical dynamic loading is relative along the axis of guide post
During effect, pressure is delivered to upper head plate via laminated rubber damping bearing, makes upper and lower two end plates first to mobile compression cylinder
Spiral compression spring；When dynamic loading is along the opposing effect of axis of guide post, pulling force is delivered to upper head plate via tension cable wire, on
Lower two end plates is moved away from, and by two groups of precompressed cable wires, two pieces of cylindrical spiral shells of floating platen relative movement compression of tractive respectively
Rotation compression spring.As can be seen here, axial dynamic loading is the most relative or opposing acts on three-dimensional isolation device, can compress circle
Cylindrical coil compression 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 isolation device that vertical early stage rigidity of the present invention can be preset, 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 is fixed on by cable wire self-locking anchorage respectively accordingly
On end plate；Described cable wire self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the end plate adjacent with floating platen；Described installing hole is by one section of taper hole and one section of spiral shell
Pit forms, and wherein said taper hole is located close to the side of floating platen, and tip points to floating platen, and described screwed hole is positioned at
Side away from floating platen；
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 distance between two pieces of floating platens；When two pieces of floating platens it
Between distance equal to when cylindrical helical compression spring is compressed to the length meeting vertical rigidity in early days, turn check bolt i.e.
Can promote described jaw by precompressed cable wire clamping locked, even if two groups of precompressed cable wire tensionings repeatedly in vibration processes, loose
In the case of also will not loosen.
The vertical in early days three-dimensional isolation device relatively prior art that rigidity can be preset 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
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 early stage rigidity, effective active length of described cylindrical helical compression spring is constant, Bu Huigai
Become the original characterisitic parameter of cylindrical helical compression spring.
(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 upper head plate 2 and bottom plate 3, is provided with between upper and lower end plate
Cylindrical helical compression spring 4；Wherein, bottom plate 3 is in the form of annular discs, and its edge is provided with installing hole 13, and the middle part of upper surface is fixed
Being provided with the guide post 1 of a circular tube shaped, the lower end of this guide post 1 welds together with the middle part of described bottom plate 3, upper end vertically to
Upper extension；The middle part concave downward of described upper head plate 2 is washbowl shape；Described guide post 1 is along cylindrical helical compression spring 4
Central hole passes the middle part of upper head plate 2 concave downward.Described upper head plate 2 is dynamic with described guide post 1 to be coordinated；Described laminated rubber shock insulation
The lower connecting plate 15 of bearing is connected by screw is fixing with the edge of described upper head plate 2, and in the following table of described lower connecting plate 15
The activity space 11 of the telescopic upper end for described guide post 1 is formed between the upper surface at the middle part of face and upper head plate 2 concave downward.
See Fig. 1～6, between described upper head plate 2 and bottom plate 3, be provided with backpressure device, this backpressure device include two groups pre-
Compressed steel rope and two pieces of floating platens；Wherein, two groups of described precompressed cable wires are the first group of precompressed being made up of five precompressed cable wires
Cable wire 8 and the second group of precompressed cable wire 7 being made up of three precompressed cable wires；Two pieces of described floating platens are for being set in described lower end
The first floating platen 6 on guide post between plate 3 and cylindrical helical compression spring 4 and be set in upper head plate 2 with cylindrical
The second floating platen 5 on guide post between spiral compression spring 4.
Seeing Fig. 1～6, described two groups of precompressed cable wires are distributed in described with linear state respectively around guide post 1 axisymmetrical
The surrounding of cylindrical helical compression spring 4, each precompressed cable wire is each parallel to guide post 1 axis, and first group of precompressed cable wire 8
Distance away from guide post axis is equal to second group of precompressed cable wire 7 distance away from guide post axis；Wherein, described first group of pre-compressed steel
The top of rope 8 is fixed on the second floating platen 5 by lifting bolt 12 respectively, and following is each passed through the first floating platen 6 by hanging
Ring screw 12 is fixed on described bottom plate 3；The following of described second group of precompressed cable wire 7 is fixed on by lifting bolt 12 respectively
On one floating platen 6, top is fixed on upper head plate 2 through the second floating platen 5 by lifting bolt 12；Described first floats presses
The position passed at each first group of precompressed cable wire 8 on plate 6 is provided with for its first through hole 10 passed through, this first through hole 10
Aperture is more than the diameter of described first group of precompressed cable wire 8；At each second group of precompressed cable wire 7 on described second floating platen 5
The position passed is provided with for its second through hole 9 passed through, and the aperture of this second through hole 9 is more than described second group of precompressed cable wire 7
Diameter；The method that two of described precompressed cable wire is fixed in respective members by lifting bolt is: fixed 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 by rope cramp (in figure not
Draw) 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: other components in addition to described two groups of precompressed cable wires in earthquake isolating equipment described in this example are all assembled by (1) as Fig. 1～6
Good；(2) two of step (1) resulting part is applied pressure, make described cylindrical helical compression spring 4 be compressed to meet
(this length can be according to the characterisitic parameter of cylindrical helical compression spring 4 and the early stage that need to preset for the length of vertical rigidity in early days
Rigidity Calculation obtains)；(3) with common rope cramp (no display in figure), two system of each precompressed cable wire is received correspondence
Lifting bolt 12 on, make each precompressed cable wire tensioning, then cancel the pressure applied in step (2), described two groups pre-
Compressed steel rope described cylindrical helical compression spring 4 will be clamped in all the time the first floating platen 6 and the second floating platen 5 it
Between.
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 end plate 3 along the axis of guide post 1, on
The counteracting force of end plate 2 compresses downwards cylindrical helical compression spring 4, and building is motionless with shifting on ground for bottom plate 3；As
Really this dynamic loading is along the drop-down bottom plate of axis 3 of guide post 1, and described two groups of precompressed cable wires two pieces of floating platens of tractive respectively are relative
Mobile compression cylindrical helical compression spring 4, bottom plate 3 then moves down with ground away from upper head plate 2, and now building is the most not
Dynamic.As can be seen here, when P wave makes ground generation up-down vibration, the most compressible cylindrical helical compression spring produces elasticity
Deform and consume energy.In like manner, building is when wind shakes or rocks under the effect of flatly seismic wave, no matter to it to described three-dimensional isolation
The dynamic loading that device produces is that pulling force or the most compressible cylindrical helical compression spring of pressure produce elastic deformation and consume 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 7 to be formed by three precompressed cable wires.
See Fig. 7～9, the following of first group of described precompressed cable wire 8 and the top of second group of precompressed cable wire 7 to be respectively adopted
Lifting bolt in cable wire self-locking anchorage 18 alternative 1 is fixed on described bottom plate 3 and upper head plate 2.Described bottom plate 3
Middle part thickens and upwards swells in inverted washbowl shape, in order to install cable wire self-locking anchorage 18.For preventing dust miscellaneous with other
Thing falls the normal work affecting antivibrator on cylindrical helical compression spring 4, wraps up one layer of rubber outside backpressure device
Protection set 19, two outer peripheral face with the first floating platen 6 and the second floating platen 5 respectively of this protection set 19 is bonded in one
Rise.The length of described sheath 19 is more than the distance between upper head plate 2 upper surface and bottom plate 3 lower surface, in order to avoid affecting antivibrator
Work.
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 bottom plate 3 or upper head plate 2.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 a screwed hole group
Becoming, wherein said taper hole is positioned against the side of floating platen, and tip points to described floating platen, and screwed hole is located remotely from floating
The opposite side of pressing plate.Described jaw 18-2 is for matching cone with described taper hole, and is made up of 3 lobes, and it is internal along axis
It is provided with the clamping hole 18-3 clamping corresponding precompressed cable wire.Described check bolt 18-4 matches with described screwed hole, and internal
It is provided with the diameter circular hole 18-5 more than corresponding precompressed rope diameter along axis.Described jaw 18-2 is arranged in described taper hole,
Check 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.
Make after assembling described vertical earthquake isolating bearing by the scheme of this example, the first group of precompressed cable wire 8 exposed and the
The fag end system of two groups of precompressed cable wires 7 is connected on traction stretching machine, monitors between two pieces of floating platens while traction stretch-draw
Distance；Distance between two pieces of floating platens is equal to being compressed to cylindrical helical compression spring 4 meet vertical rigidity in early days
Length time, turn check bolt 18-4 and described jaw 18-2 can be promoted precompressed cable wire clamping locked, thus by cylinder
Shape spiral compression spring 4 is clamped between the first floating platen 6 and the second floating platen 5 all the time；Hereafter described lamination rubber is loaded onto
Glue shock isolating pedestal, obtains the three-dimensional isolation device described in this example.
This example implementation other than the above is same as Example 1.
Example 3
Seeing Figure 13～15, this example is described first group of precompressed cable wire 8 and second group of precompressed cable wire 7 with the difference of example 2
By five precompressed cable wire compositions.The upper end of described guide post 1 welds together admittedly with the middle part of described upper head plate 2, lower end
Centre bore downward along cylindrical helical compression spring 4 extends to pass the middle part that bottom plate 3 upwards swells；Described bottom plate
3 dynamic with the outer surface of guide post 1 coordinate.The lower surface at bottom plate 3 edge of the lower surface at the middle part of described bottom plate 3 protuberance
Between formed for the activity space 11 of described guide post 1 lower retractable.
This example other embodiment other than the above is same as Example 2.
Claims (3)
1. the three-dimensional isolation device that vertical early stage rigidity can be preset, 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 about two pieces two end plates, is provided with cylindrical helical pressure between described two end plates
Contracting spring, one of end plate is fixed with guide post, and this guide post is along the centre bore of described cylindrical helical compression spring
Pass another end plate；The lower connecting plate of described laminated rubber damping bearing is fixing with the upper head plate of described vertical earthquake isolating bearing to be connected
Connect；It is characterized in that,
Being additionally provided with backpressure device between described two end plates, this backpressure device includes that quantity two groups of at least three respectively are pre-
Compressed steel rope and two pieces of floating platens, wherein,
Two pieces of described floating platens are respectively sleeved on one piece of guide post between end plate and cylindrical helical compression spring；
Two groups of described precompressed cable wires are symmetrically distributed in described cylindrical helical pressure rotating around the axis of guide post with linear state
The surrounding of contracting spring, and, of each group of precompressed cable wire is separately fixed on one piece of floating platen, and other end is each passed through separately
One piece of floating platen is fixed on the end plate adjacent with this floating platen；
Being respectively equipped with, on described floating platen, the through hole wearing this precompressed cable wire through the position of described precompressed cable wire, 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 pre-equal to being compressed to by cylindrical helical compression spring
If the length of vertical rigidity in early days；
By described tension cable wire tensioning, provide the precompression equal to design dead load for laminated rubber bearing.
The three-dimensional isolation device that a kind of vertical early stage rigidity the most according to claim 1 can be preset, 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 that a kind of vertical early stage rigidity the most according to claim 1 and 2 can be preset, it is characterised in that
The other end of two groups of precompressed cable wires of described vertical earthquake isolating bearing is fixed on corresponding end plate by cable wire self-locking anchorage respectively；Institute
The cable wire self-locking anchorage stated is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the end plate adjacent with floating platen；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 floating platen, and described screwed hole is located remotely from
The side of floating platen；
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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| Application Number | Priority Date | Filing Date | Title |
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| CN201610902528.7A CN106284730A (en) | 2016-10-17 | 2016-10-17 | The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610902528.7A CN106284730A (en) | 2016-10-17 | 2016-10-17 | The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset |
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| CN201610902528.7A Pending CN106284730A (en) | 2016-10-17 | 2016-10-17 | The three-dimensional isolation device that a kind of vertical early stage rigidity can be preset |
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Citations (6)
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|---|---|---|---|---|
| CN87100223A (en) * | 1987-02-07 | 1987-08-12 | 华东建筑设计院 | Prestressed damping spring vibration-reducing apparatus |
| 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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2016
- 2016-10-17 CN CN201610902528.7A patent/CN106284730A/en active Pending
Patent Citations (6)
| 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 |
| 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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