CN106567586A - Three-dimensional shock isolation device adjustable in vertical initial stiffness - Google Patents
Three-dimensional shock isolation device adjustable in vertical initial stiffness Download PDFInfo
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- CN106567586A CN106567586A CN201610905757.4A CN201610905757A CN106567586A CN 106567586 A CN106567586 A CN 106567586A CN 201610905757 A CN201610905757 A CN 201610905757A CN 106567586 A CN106567586 A CN 106567586A
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- steel wire
- wire rope
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- bearing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention relates to a three-dimensional shock isolation device adjustable in vertical initial stiffness. The three-dimensional shock isolation device comprises a vertical shock isolation support and a laminated rubber shock isolation support which are connected in series. The three-dimensional shock isolation device is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical shock isolation support; the back pressure device comprises three or more prepressing steel wire ropes, steel wire rope turning elements, steel wire rope self-locking tensioning anchorage devices and a floating back pressure steel plate, and the number of the steel wire rope turning elements and the number of the steel wire rope self-locking tensioning anchorage devices are equal to the number of the prepressing steel wire ropes; the prepressing steel wire ropes are in broken line states; one ends of all the prepressing steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, the other ends of all the prepressing steel wire rope are retraced after winding the corresponding steel wire rope turning elements in a penetrating mode, and then all the prepressing steel wire ropes are paralleled to be rope bundles to penetrate through the floating back pressure steel plate and are anchored to a base through the steel wire rope self-locking tensioning anchorage devices; and the prepressing steel wire ropes are tensioned to the tensile force required by the preset initial stiffness, so that a belleville spring set is always clamped between a driving pressing plate and the floating back pressure steel plate.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, and in particular to it is a kind of by laminated steel and rubber pillow with it is perpendicular
To the three-dimensional isolation device of shock isolating pedestal series connection.
Background technology
Earthquake isolating equipment is the shockproof isolating device being located between building and basis.The earthquake isolating equipment of early stage is mainly by rubber
The two-dimentional shock isolating pedestal (laminated rubber damping bearing) being superimposed to form with sheet metal, can only isolate the level point of seismic wave
Amount.With the raising that people are recognized earthquake Multi-attributes, three-dimensional isolation device is gradually paid attention to by this area researcher.Most
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 the A of Publication No. CN 102409777 discloses a kind of structure three-dimensional shock insulation and antidumping dress
Put, the main body mechanism of the device is in series with spring shock-proof bearing 15 by laminated rubber damping bearing 14, the agent structure
Upper and lower side be respectively arranged with upper junction plate 1 and lower connecting plate 18, it is characterised in that：The upper junction plate 1 and lower connecting plate 18
Between be provided with and misplaced uniform tensile steel wire rope 16 around agent structure surrounding, the tensile steel wire rope 16 pole in the horizontal direction
Horizontal shear elastic deformation amount of the limit deflection more than main body mechanism.Although scheme can improve three-dimensional isolation described in the patent application
The tensile strength of device, to resist the produced huge pulling force that waves or even topple of earthquake middle-high building thing, but still deposits
In following deficiency：1st, described spring shock-proof bearing can only compress energy-dissipating and shock-absorbing, it is impossible to stretch energy-dissipating and shock-absorbing；2nd, described bullet
Spring shock isolating pedestal can not preset initial stiffness, and being not easy to default earthquake intensity reduces shock insulation cost.
The application for a patent for invention of Publication No. CN1932324A discloses a kind of " adjustable disc-shape spring mechanical damping resistance
Buddhist nun's device ", the antivibrator includes shell, is located at the load connecting rod and two groups of disk springs of inside the shell, described, the load connection
Regulation gear connected therewith is provided with the middle part of bar, is respectively equipped with the load connecting rod of the regulation gear both sides and is connected with load
Left-handed nut and right-handed nut that extension bar screw thread coordinates, two groups of disk springs are respectively provided at the left-handed nut and dextrorotation spiral shell
Female outside, and be clamped in respectively between the 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 the left-handed nut and right-handed nut mutually draw close or away from the dish-shaped bullet of i.e. two groups of scalable
The pretightning force of spring so as to the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invention still has following not enough：1st, the load connecting rod is that balance is kept under the collective effect of two groups of disk springs, two
Although the pretightning force of group disk spring can be adjusted, adjust anyway, the work of two groups of disk springs to load connecting rod
All it is firmly one group of power equal in magnitude, in opposite direction, only need to apply any external force in load connecting rod can all destroy this
Balance, makes two groups of disk springs deform, so described antivibrator cannot preset initial stiffness；2nd, must match somebody with somebody in the invention
Close and use two groups of disk springs, damping could be all provided when antivibrator is pressed or draws load, this not only causes certain
Waste, the length of antivibrator is greatly increased.
Publication No.CN101457553AApplication for a patent for invention disclose that a kind of " spring stiffness adjustable tuning quality subtracts
Shake device ", the vibroshock is a kind of composite buffer, and by changing the thickness of mass its characteristic frequency is changed, viscous by changing
The flow of the working media of stagnant antivibrator changes its damping ratio, and by changing effective active length of spring its rigidity is changed, its
The means of the middle effective active length for changing spring have three kinds, and one is a section be located on spring using curing materials in solidification cylinder
Solidification, two fill in constraint block, and the two interference fit toward intracardiac in helical spring, make the one section of spring contacted with constraint block
Failure, three is to arrange helical raised on constraint block surface, and 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 the patent application scheme can change rigidity, institute
Not only effective active length substantially shortens the spring stated, and can only compress passive energy dissipation, it is impossible to stretch passive energy dissipation.
The content of the invention
The technical problem to be solved is to provide a kind of adjustable three-dimensional isolation device of vertical initial stiffness, should
Three-dimensional isolation device not only both compressible passive energy dissipation, and 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：
A kind of adjustable three-dimensional isolation device of vertical initial stiffness, the three-dimensional isolation device includes what is be sequentially connected in series up and down
Laminated rubber damping bearing and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing include upper junction plate, lower connecting plate, be clamped in be vertically connected with it is folded between plate
Layer rubber blanket and at least three tensile steel wire ropes for being distributed on laminated rubber bearing surrounding；One of the tensile steel wire rope is fixed on
On upper junction plate, other end is fixed on lower connecting plate, and the line of upper and lower two fixing point is parallel to the laminated rubber bearing
Axis；
Described vertical earthquake isolating bearing includes base, and the upper surface of the base is provided with upwardly extending fairlead；It is described to lead
Disk spring group is coaxially provided with to set is internal, the top of the disk spring group is provided with driving pressing plate；Described laminated rubber shock insulation
The middle part of the lower connecting plate lower surface of bearing extends one raised into the fairlead, and the projection is fixed with described driving pressing plate
Connection；The disk spring group is made up of one group of disk spring overlapping；
Characterized in that,
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing, the backpressure device includes the precompressed of more than three
The steel wire rope steel wire rope break-in element equal with precompressed steel wire rope quantity, a steel wire rope self-locking tensioning anchorage and one piece of floating
Back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between disk spring group and base；
Described steel wire rope break-in element is fixed on described driving pressing plate around the axisymmetrical of described fairlead；
Described steel wire rope self-locking is tensioned anchorage by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion
Compression spring and plane bearing are constituted, wherein：
A the first self-centering locking fixture described in) has a connecting seat, is provided with axially extending in the middle part of the connecting seat one end
Cylindrical boss, the internal of the boss is provided with the first taper jaw being made up of 3～5 claw pieces along axial line, and outer peripheral face is arranged
There is tensioning swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is positive six side
Shape；
B the second self-centering locking fixture described in) has a tapered sleeve, and the internal of the tapered sleeve is sequentially provided with by 3～5 along axis
The second taper jaw and hollow bolt of claw piece composition, wherein, the head of described hollow bolt and the second taper jaw
Major part is relative, and the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) is by ball-retainer component and is respectively provided at the tensioning swivel nut end face relative with tapered sleeve
On ring raceway constitute, wherein described ring raceway matches with the ball in ball-retainer component；
D) the second self-centering locking fixture is located at the outside of the tensioning swivel nut head, and the second taper jaw microcephaly
It is consistent with the sensing of the first taper jaw microcephaly；Described plane bearing is located between the tensioning swivel nut and tapered sleeve, described
Anti- compression spring of turning round is located in the endoporus of tensioning swivel nut；Pressure is turned round when Jing is anti-between calvus of the precompressed steel wire rope by the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw of contracting spring and plane bearing, in the effect of precompressed steel wire rope tension
Under, anti-turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the centre bore of disk spring group with broken line state, and each pre- steel wire
One axisymmetrical around described fairlead of rope is fixed on floating back-pressure steel plate, and other end passed around a relative steel
Turn back after cord break-in element, then all of precompressed steel wire rope is listed as beam of restricting, from fairlead axis on floating back-pressure steel plate
Through point through floating back-pressure steel plate, be anchored on base by steel wire rope self-locking tensioning anchorage；Described floating back-pressure steel plate
On, the position passed through in the rope beam is provided through the through hole of the rope beam, and the aperture of the through hole is more than the diameter of the rope beam；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is arranged, described disk spring group is set to clamp all the time
Driving between pressing plate and floating back-pressure steel plate；
The tensile steel wire rope is tensioned the precompression provided for laminated rubber bearing equal to design dead load.
The operation principle of above-mentioned three-dimensional isolation device vertical earthquake isolating is as follows：When vertical dynamic loading it is relative along the axis of fairlead
During effect, pressure is delivered to driving pressing plate via laminated rubber damping bearing, is allowed to move down compression disk spring group；Work as dynamic loading
When acting on opposite to each other along the axis of fairlead, pulling force is delivered to driving pressing plate via tensile steel wire rope, drives and moved on pressing plate, and precompressed
Steel wire rope is then reversely sling floating back-pressure steel plate compression disk spring group by steel wire rope break-in element.As can be seen here, it is axially dynamic
No matter relative load is or acts on three-dimensional isolation device opposite to each other, can compress disk spring group so as to which elastic deformation occurs
And consume energy.
It is logical on the precompressed steel wire rope described in the course of work and the floating back-pressure steel plate from above-mentioned operation principle
The hole wall in hole can not produce friction, otherwise interfere with moving up and down for floating back-pressure steel plate, therefore the through-hole diameter compares institute
The diameter for stating the arranged side by side rope beam of composition of precompressed steel wire rope is how many greatly, should be not disturbing and affect moving up and down for floating back-pressure steel plate
It is advisable..
In such scheme, described steel wire rope break-in element is the suspension ring shape structure of common fixed pulley or similar break-in function
Part, such as lifting bolt, U-shaped component.
The adjustable three-dimensional isolation device of vertical initial stiffness of the present invention, wherein described precompressed steel wire rope is fixed
One on floating back-pressure steel plate can may also be employed similar lifting bolt system and connect fixation using being welded and fixed.
The adjustable three-dimensional isolation device of vertical initial stiffness of the present invention has the effect that compared with prior art：
(1) in the vertical direction, you can compression energy-dissipating and shock-absorbing, and stretchable energy-dissipating and shock-absorbing；Effectively can build depletion high level
Build the huge pulling force that thing is produced due to waving to building foundation；And one group of disk spring is only needed, vertical extension is little, stability
It is good.
(2) after defensive ability/resistance ability of the vertical dynamic loading more than default vertical initial stiffness, vertical earthquake isolating in the present invention
The bidirectional elastic deformation of seat is symmetrical, therefore the effect of its compression power consumption is not affected because of the change of the positive negative direction of vertical load
Really；
(3) as long as the length for changing precompressed steel wire rope can change the vertical initial stiffness of whole device, external force is overcoming
Earthquake isolating equipment cannot be made before the vertical initial stiffness to produce vertical deformation, effectively inhibit building in small earthquake and weak wind
Produce in the presence of shaking and rock, the shockproof grade of wind resistance of predeterminable building significantly reduces the shockproof cost of wind resistance；
(4) preset during vertical initial stiffness, effective active length of the disk spring group is constant, will not change dish
The original characterisitic parameter of shape groups of springs.
(5) initial stiffness is preset using the characteristic reasonable selection of butterfly spring, and then selects the feature frequency of earthquake isolating equipment
Domain scope, avoids the intrinsic frequency domain of building structure and the vertically frequency domain of seismic wave, prevents resonance.
(6) using steel wire rope self-locking tensioning anchorage one of precompressed steel wire rope is fixed on base, one be can be to precompressed
The length of steel wire rope is adjusted, and two is the synergy using anti-torsion compression spring and the first self-centering locking fixture, can be had
Effect prevents precompressed steel wire rope from twisting during length adjustment is carried out and changes the characterisitic parameter of wire digging line.
(7) thing that can effectively buffer building rocks stretching and the compression shock that trend is produced to building basis, further
Reduce the risk that building topples.
Description of the drawings
Fig. 1～6 are the structural representation of a specific embodiment of three-dimensional isolation device of the present invention, wherein, Fig. 1 is
Front view (the D-D rotations of Fig. 3 are cutd open), Fig. 2 is the A-A sectional views (omitting precompressed steel wire rope) of Fig. 1, and Fig. 3 is the B-B section views of Fig. 1
Figure (omits precompressed steel wire rope), and Fig. 4 is the C-C sectional views (omitting tensile steel wire rope) of Fig. 1, and Fig. 5 is that the structure of Fig. 1 local I is put
Big figure, Fig. 6 is the schematic enlarged-scale view of Fig. 1 local II.
Fig. 7～11 are the structural representation that steel wire rope self-locking is tensioned anchorage in the illustrated embodiment of Fig. 1～6, wherein, Fig. 7 is
Front view (section view), dotted line represents precompressed steel wire rope in figure, and Fig. 8 is upward view, and Fig. 9 is the E-E profiles of Fig. 7, and Figure 10 is Fig. 7
F-F profiles, Figure 11 for Fig. 7 G-G sectional views.
Figure 12～15 are the structural representation of second specific embodiment of three-dimensional vibration isolating device of the present invention, wherein,
Figure 12 is front view (section view), and Figure 13 is the H-H sectional views (omitting precompressed steel wire rope) of Figure 12, and Figure 14 is the I-I section views of Figure 12
Figure (omits precompressed steel wire rope), and Figure 15 is the J-J cutaway view Amplified images of Figure 13.
Figure 16～20 are the structural representation of the 3rd specific embodiment of three-dimensional vibration isolating device of the present invention, its
In, Figure 16 is front view (section view), and Figure 17 is the K-K sectional views (omitting precompressed steel wire rope) of Figure 16, and Figure 18 is cutd open for the L-L of Figure 16
View (omits precompressed steel wire rope), and Figure 19 is the schematic enlarged-scale view of Figure 16 local III, and Figure 20 is that the structure of Figure 16 local IV is amplified
Figure.
Specific embodiment
Example 1
Referring to Fig. 1, the three-dimensional shock isolation support in this example is by the laminated rubber damping bearing and vertical earthquake isolating connected up and down
Seat composition.
Referring to Fig. 1 and Fig. 4, described laminated rubber damping bearing is including upper junction plate 15, lower connecting plate 8, on being clamped in
Laminated rubber bearing 17 and six roots of sensation tensile steel wire rope 16 between lower connecting plate；Wherein, described upper junction plate 15 and lower connecting plate 8
In the form of annular discs, the edge of upper junction plate 15 is provided with installing hole 6；The main body of the laminated rubber bearing 17 by one layer of rubber 17-1 with
Molding sulfuration after one layer of steel plate 17-2 is superimposed is constituted, and its periphery self-assembling formation rubber protection during molding sulfuration
Layer 17-3.The upper and lower ends face of the main body of the laminated rubber bearing 17 is equipped with connection steel plate 17-4, two pieces of connections steel plate 17-
4 are welded and fixed together respectively with upper junction plate 15 and lower connecting plate 8.Described six roots of sensation tensile steel wire rope 16 is around laminated rubber bearing
17 axis is symmetrically distributed in its surrounding, and of each tensile steel wire rope 16 is fixed on upper junction plate by lifting bolt 10
On 15, other end is fixed on lower connecting plate 8 by lifting bolt 10.Each tensile steel wire rope 16 is tensioned, and makes six roots of sensation tension steel
The tension force sum of cord 16 is equal to the vertical design dead load of three-dimensional vibration isolating device described in this example, and after being tensioned, each tension
Axis of the steel wire rope 16 each parallel to laminated rubber bearing 17.
Referring to Fig. 1～6, the vertical earthquake isolating bearing includes fairlead 1, the annular edge of a wing 2, base 3, the and of disk spring group 4
Backpressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end radially shrinks to have formed spacing and guiding work
The annular edge of a wing 2, lower end extends radially outwards to form a ring flange 5.Swell upwards to form inversion in the middle part of described base 3
Washbowl shape, the edge of surrounding is provided with installing hole 6, and described fairlead 1 is fixed on its protuberance by the ring flange 5 set by lower end
Middle part upper surface.
Referring to Fig. 1～3, described disk spring group 4 is located in fairlead 1, and the upper end of the disk spring group 4 is provided with and institute
The dynamic driving pressing plate 7 for coordinating of fairlead 1 is stated, wherein the disk spring group 4 is vertically overlapped two-by-two relatively by 16 disk springs
Form, the middle part of the lower surface of the lower connecting plate 8 extends the projection of a cylinder into the fairlead 1, the projection with it is described
Driving pressing plate 7 be fixed together by screw.Referring to Fig. 1, it is provided with to be more than between lower connecting plate 8 and the annular edge of a wing 2 and shakes
The gap 14 of width；Produce shock between pressing plate 7 and the annular edge of a wing 2 in order to avoid driving described in vibration processes, it is described to drive pressure
Anticollision gap 13 is provided between plate 7 and the annular edge of a wing 2.
Referring to Fig. 1～3, described backpressure device is located in fairlead 1, and its concrete scheme is as follows：
Referring to Fig. 1～7, described backpressure device is only used as hanging for steel wire rope break-in element by three precompressed steel wire ropes 9, three
10, one block of floating back-pressure steel plate 11 of ring screw, another three lifting bolts 10 of fixed 9 one, precompressed steel wire rope and a steel wire rope
Self-locking tensioning anchorage 18 is constituted.Wherein,
Described floating back-pressure steel plate 11 is located between disk spring group 4 and base 3；
Described three are only used as the lifting bolt 10 of steel wire rope break-in element and fix around the axisymmetrical of described fairlead 1
On the driving pressing plate 7.
Referring to Fig. 7～11, each steel wire rope self-locking tensioning anchorage 18 is locked by the first self-centering locking fixture, the second self-centering
Clamper, anti-torsion compression spring 18-1 and plane bearing 18-2 composition, wherein：
The first described self-centering locking fixture has a connecting seat 18-3, and the edge of connecting seat 18-3 is provided with installing hole
18-12, is provided with axially extending cylindrical boss 18-4 in the middle part of lower end, the internal of boss 18-4 is provided with first along axial line
Taper hole 18-5, is provided with the first taper jaw 18-7 being made up of 3 claw pieces in the taper hole, the outer peripheral face of the boss 18-4 is arranged
There is tensioning swivel nut 18-6, be threadedly coupled therebetween；Wherein, the microcephaly of first tapered clamp 18-7 points to connecting seat 18-3,
The outer peripheral face of the tensioning swivel nut 18-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 18-8, internal being sequentially provided with along axis of tapered sleeve 18-8
One section of second taper hole 18-13 and one section of screwed hole；Wherein, it is provided with the second taper being made up of 3 claw pieces in the second taper hole 18-13
Jaw 18-9, is provided with hollow bolt 18-10, the head of hollow bolt 18-10 and the second taper jaw 18- in described screwed hole
9 major part is relative, and the outer peripheral face of the tapered sleeve 18-8 is regular hexagon；
Described plane bearing 18-2 is by ball-retainer component 18-11 and is respectively provided at tensioning swivel nut 18-6 and tapered sleeve
Ring raceway on 18-8 relative end face is constituted, wherein in described ring raceway and ball-retainer component 18-11
Ball matches；
The second self-centering locking fixture is located at the outside of tensioning swivel nut 18-6 heads, and the second taper jaw 18-9
Microcephaly is consistent with the sensing of the first taper jaw 18-7 microcephalies；Described plane bearing 18-2 be located at the tensioning swivel nut 18-6 and
Between tapered sleeve 18-8, described anti-torsion compression spring 18-1 is located in the endoporus of tensioning swivel nut 18-6.When precompressed steel wire rope 9 is by
Jing is anti-between the calvus of one taper jaw 18-7 turns round centre bore of compression spring 18-1 with plane bearing 18-2 and the second taper
After passing between the calvus of jaw 18-9, under the tension force effect of precompressed steel wire rope 9, an anti-work for turning round compression spring 18-1
On the first taper jaw 18-7, other end is acted on tapered sleeve 18-8.
Referring to Fig. 1,4 and Fig. 6, the connecting seat 18-3 of the steel wire rope self-locking tensioning anchorage 18 is fixed on base 3 by screw
The lower surface at the middle part of protuberance, and distance of the lower surface at the middle part of the protuberance of the base 3 apart from the bottom surface of base 3 is more than the steel
Cord self-locking is tensioned the height of anchorage 18.
Referring to Fig. 1～6, the axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with three lifting bolts 10；
The outside of the base 3, the position passed through in the axis of fairlead 1 is provided with the steel wire rope self-locking tensioning anchorage 18；Three pre-
Compressed steel cord 9 is distributed in the centre bore of disk spring group 4 with broken line state, and of each precompressed steel wire rope 9 is to connect solid
It is scheduled on floating back-pressure steel plate 11 on set lifting bolt 10, other end passed around relative one as steel wire rope break-in element
Lifting bolt 10 after turn back, then three precompressed steel wire ropes 9 are listed as axle of the beam from fairlead 1 on floating back-pressure steel plate 11 of restricting
The position that line is passed through passes through floating back-pressure steel plate 11, is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；Described floating
On back-pressure steel plate 11, the through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the aperture of the through hole 12 is more than
The diameter of the rope beam；On described base 3, the anchor hole 3-1 of anchoring rope beam is provided with through position in the rope beam.
Referring to Fig. 1～6 and with reference to Fig. 7～11, in order to realize the purpose of predeterminable vertical initial stiffness, above-mentioned three precompressed
The installation of steel wire rope 9 and tensioning method are as described below：(1) first according to needing default vertical initial stiffness and disk spring group 4
Characterisitic parameter, calculates precompressed steel wire rope 9 and meets the tension force for presetting vertical initial stiffness；(2) vertical earthquake isolating is propped up by Fig. 1
Seat is assembled, and makes the rope beam that the other end of three precompressed steel wire ropes 9 constitutes side by side that the first of anchorage 18 is tensioned from steel wire rope self-locking
Pass in taper jaw 18-7, the centre bore of the second taper jaw 18-9 and hollow bolt 18-10；Then, (3) are pre- what is exposed
The fag end system of compressed steel cord 9 is connected on traction stretching machine, and monitors pre- compressed steel using tension detecting instrument while tensioning is drawn
The tension force of cord 9；When tension force needed for the precompressed steel wire rope 9 is tensioned to default vertical initial stiffness, second is moved forward certainly
Stator locking fixture, while adjust turning tensioning swivel nut 18-6 so that plane bearing 18-2 is clamped tightly at the tensioning swivel nut
Between 18-6 and tapered sleeve 18-8, and anti-torsion compression spring 18-1 is compressed, and the tension force produced by it promotes the first taper jaw 18-
7 reaches clamp on precompressed steel wire rope 9, and described hollow bolt 18-10 is turned thereafter will be pre- in the second taper jaw 18-9
Compressed steel cord 9 is pressed from both sides extremely；Traction stretching machine is removed, unnecessary precompressed steel wire rope 9 is blocked, you can all the time clamp disk spring group 4
Driving between pressing plate 7 and floating back-pressure steel plate 11；(4) finally press Fig. 1 and 4 by laminated rubber damping bearing be arranged on it is described under
The top of connecting plate 8, obtains final product the three-dimensional isolation device.
Referring to Fig. 1 and Fig. 7～11, in the work progress for installing shock isolating pedestal or in routine maintenance procedure, if it find that
The tension force of precompressed steel wire rope 9 is not enough, you can the tensioning swivel nut 18-6 turned in steel wire rope self-locking tensioning anchorage 18 is adjusted.
When presetting vertical initial stiffness, the tension force sum of three precompressed steel wire ropes 9 need to be filled more than or equal to the three-dimensional isolation
Put born erect static load lotus.
Under ideal conditions, the vertical ripple of earthquake should be unable to occur by earthquake isolating equipment to building during building transmission
Displacement.Based on this, the operation principle of this example three-dimensional isolation device vertical earthquake isolating is as follows：Referring to Fig. 1, when the vertical ripple of earthquake is produced
When raw dynamic loading overcomes the vertical initial stiffness, if the dynamic loading above pushes away base 3 along the axis of fairlead 1, drive
The counteracting force of pressing plate 7 just compresses downwards disk spring group 4, and building is motionless with shifting on ground for base 3；If the dynamic loading
Along the drop-down base 3 of the axis of fairlead 1, precompressed steel wire rope 9 is then reverse by the lifting bolt 10 as steel wire rope break-in element
Floating back-pressure of slinging steel plate 11, compresses upwards disk spring group 4, and base 3 is moved down with ground, but building is still motionless.Thus
It can be seen that, when P wave makes ground generation up-down vibration, compressible disk spring group produces elastic deformation and consumes energy.In the same manner,
Building when rocking in the presence of wind shake or flatly seismic wave, the no matter dynamic loading that it is produced to the three-dimensional isolation device
It is that pulling force or the compressible disk spring group of pressure produce elastic deformation and consume energy.
Example 2
Referring to Figure 12～15, this example has been substantially carried out following some improvement on the basis of example 1：(1) by precompressed steel wire rope 9
The six roots of sensation is increased to by three；(2) U-shaped component 19 will be replaced with as the lifting bolt 10 of steel wire rope break-in element；(3) will be described
Backpressure device is changed accordingly to：
Described backpressure device is only used as the U-shaped component 19, of steel wire rope break-in element by six roots of sensation precompressed steel wire rope 9, six
The lifting bolt 10 and a fixed precompressed steel wire rope 9 of fixed 9 one, the precompressed steel wire rope of block floating back-pressure steel plate 11, six is another
The steel wire rope self-locking tensioning anchorage 18 of head is constituted；Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and base 3；
The six U-shaped components 19 for being only used as steel wire rope break-in element fix the drive around the axisymmetrical of described fairlead 1
On dynamic pressure plate 7；Referring to Figure 15, described U-shaped component 19 is made up of round steel bending, on the driving pressing plate 7, is arranging U-shaped structure
The relevant position of part 19 is provided with the circular hole matched with 19 two sides of U-shaped component, and the U-shaped component 19 is inserted in the circular hole,
The two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with six lifting bolts 10；The base 3
Outside, the position passed through in the axis of fairlead 1 is provided with the steel wire rope self-locking tensioning anchorage 18；Six roots of sensation precompressed steel wire rope 9 with
Broken line state is distributed in the centre bore of disk spring group 4, and of each precompressed steel wire rope 9 is to connect to be fixed on floating back-pressure
On steel plate 11 on set lifting bolt 10, other end passed around relative one as the U-shaped component 19 of steel wire rope break-in element
After turn back, then six roots of sensation precompressed steel wire rope 9 be listed as restrict beam from floating back-pressure steel plate 11 fairlead 1 axis pass through position
Through floating back-pressure steel plate 11, it is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；Described floating back-pressure steel plate 11
On, the through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the aperture of the through hole 12 is more than the rope beam
Diameter；On described base 3, the anchor hole 3-1 of anchoring rope beam is provided with through position in the rope beam.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for the earthquake isolating equipment of Antiseismic building described in this example is same as Example 1, and the public can refer to example 1 voluntarily
Analysis.
Example 3
Referring to Figure 16～20, this example has been substantially carried out following some improvement on the basis of example 1：(1) will be used as steel wire rope
The lifting bolt 10 of break-in element replaces with fixed pulley 20；(2) described backpressure device is changed accordingly to：
Described backpressure device is only used as 20, one piece of the fixed pulley of steel wire rope break-in element by four precompressed steel wire ropes 9, four
The lifting bolt 10 of fixed 9 one, the precompressed steel wire rope of floating back-pressure steel plate 11, four and a fixed other end of precompressed steel wire rope 9
Steel wire rope self-locking tensioning anchorage composition；Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and base 3；
Four fixed pulleys 20 for being only used as steel wire rope break-in element fix the driving around the axisymmetrical of described fairlead 1
The lower surface being located on pressing plate 7 in the centre bore of the disk spring group 4；Wherein, described fixed pulley 20 is hinged on support, should
Support is welded on driving pressing plate 7；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with four lifting bolts 10；The base 3
Outside, the position passed through in the axis of fairlead 1 is provided with the steel wire rope self-locking tensioning anchorage 18；Four precompressed steel wire ropes 9 with
Broken line state is distributed in the centre bore of disk spring group 4, and of each precompressed steel wire rope 9 is to connect to be fixed on floating back-pressure
On steel plate 11 on set lifting bolt 10, other end was passed around after a fixed pulley 20 of relative as steel wire rope break-in element
Turn back, then four precompressed steel wire ropes 9 beam that is listed as restricting is worn from the position that the axis of fairlead 1 on floating back-pressure steel plate 11 is passed through
Floating back-pressure steel plate 11 is crossed, is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；On described floating back-pressure steel plate 11,
The through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the aperture of the through hole 12 is straight more than the rope beam
Footpath；On described base 3, the anchor hole 3-1 of anchoring rope beam is provided with through position in the rope beam.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for the earthquake isolating equipment of Antiseismic building described in this example is same as Example 1, and the public can refer to example 1 voluntarily
Analysis.
Claims (2)
1. the adjustable three-dimensional isolation device of a kind of vertical initial stiffness, it is folded that the three-dimensional isolation device includes being sequentially connected in series up and down
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 between plate
Rubber cushion and at least three tensile steel wire ropes for being distributed on laminated rubber bearing surrounding；One company of being fixed on of the tensile steel wire rope
On fishplate bar, other end is fixed on lower connecting plate, and the line of upper and lower two fixing point is parallel to the axis of the laminated rubber bearing
Line；
Described vertical earthquake isolating bearing includes base, and the upper surface of the base is provided with upwardly extending fairlead；The fairlead
Inside is coaxially provided with disk spring group, and the top of the disk spring group is provided with driving pressing plate；Described laminated rubber damping bearing
The middle part of lower connecting plate lower surface extend one raised into the fairlead, the projection and described driving pressing plate are fixed and connected
Connect；The disk spring group is made up of one group of disk spring overlapping；
Characterized in that,
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing, the backpressure device includes the pre- steel wire of more than three
The rope steel wire rope break-in element equal with precompressed steel wire rope quantity, a steel wire rope self-locking tensioning anchorage and one piece of floating back-pressure
Steel plate, wherein,
Described floating back-pressure steel plate is located between disk spring group and base；
Described steel wire rope break-in element is fixed on described driving pressing plate around the axisymmetrical of described fairlead；
Described steel wire rope self-locking tensioning anchorage is by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion compression
Spring and plane bearing are constituted, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and in the middle part of the connecting seat one end axially extending cylinder is provided with
Shape boss, the internal of the boss is provided with the first taper jaw being made up of 3～5 claw pieces along axial line, and outer peripheral face is arranged with to be opened
Tight swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is regular hexagon；
B the second self-centering locking fixture described in) has a tapered sleeve, and the internal of the tapered sleeve is sequentially provided with by 3～5 claws along axis
The second taper jaw and hollow bolt of piece composition, wherein, the head and the major part of the second taper jaw of described hollow bolt
Relatively, the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) is by ball-retainer component and is respectively provided on the tensioning swivel nut end face relative with tapered sleeve
Ring raceway is constituted, wherein described ring raceway matches with the ball in ball-retainer component；
D) the second self-centering locking fixture is located at the outside of the tensioning swivel nut head, and the second taper jaw microcephaly and the
The sensing of one taper jaw microcephaly is consistent；Described plane bearing is located between the tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；Compression bullet is turned round when Jing is anti-between calvus of the precompressed steel wire rope by the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw of spring and plane bearing, under the effect of precompressed steel wire rope tension,
Anti- turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the centre bore of disk spring group with broken line state, and each precompressed steel wire rope
One axisymmetrical around described fairlead is fixed on floating back-pressure steel plate, and other end passed around a relative steel wire rope
Turn back after break-in element, then all of precompressed steel wire rope is listed as beam of restricting, and passes through from fairlead axis on floating back-pressure steel plate
Point through floating back-pressure steel plate, be anchored on base by steel wire rope self-locking tensioning anchorage；On described floating back-pressure steel plate,
The position that the rope beam is passed through is provided through the through hole of the rope beam, and the aperture of the through hole is more than the diameter of the rope beam；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is arranged, described disk spring group is set to be clamped in drive all the time
Between dynamic pressure plate and floating back-pressure steel plate；
The tensile steel wire rope is tensioned the precompression provided for laminated rubber bearing equal to design dead load.
2. the adjustable three-dimensional isolation device of a kind of vertical initial stiffness according to claim 1, it is characterised in that described
Steel wire rope break-in element be fixed pulley, lifting bolt or U-shaped component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610905757.4A CN106567586A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock isolation device adjustable in vertical initial stiffness |
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| CN201610905757.4A CN106567586A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock isolation device adjustable in vertical initial stiffness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056515A (en) * | 2018-09-13 | 2018-12-21 | 北京城建十六建筑工程有限责任公司 | A kind of shock mount |
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| CN204898880U (en) * | 2015-08-14 | 2015-12-23 | 中船第九设计研究院工程有限公司 | Spacing isolation bearing of hasp type tensile |
| CN204919857U (en) * | 2015-09-11 | 2015-12-30 | 中船第九设计研究院工程有限公司 | Cyclic annular horizontal spacing isolation bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU480819A1 (en) * | 1972-06-21 | 1975-08-15 | Центральный Проектно-Технологический Институт Строительного Производства "Оргтяжстрой" | Seismic building g.sementsa |
| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109056515A (en) * | 2018-09-13 | 2018-12-21 | 北京城建十六建筑工程有限责任公司 | A kind of shock mount |
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