CN106639023A - Three-dimensional shock isolation device with adjustable initial vertical rigidity - Google Patents
Three-dimensional shock isolation device with adjustable initial vertical rigidity Download PDFInfo
- Publication number
- CN106639023A CN106639023A CN201610905714.6A CN201610905714A CN106639023A CN 106639023 A CN106639023 A CN 106639023A CN 201610905714 A CN201610905714 A CN 201610905714A CN 106639023 A CN106639023 A CN 106639023A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- wire rope
- plate
- precompressed
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
-
- 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
-
- 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
-
- 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
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Abstract
The invention relates to a three-dimensional shock isolation device with the adjustable initial vertical rigidity. 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 guide sleeve of the vertical shock isolation support is internally provided with a back pressure device which comprises more than three pre-pressed steel wire ropes, steel wire rope turning elements with the number being equal to that of the pre-pressed steel wire ropes, and a floating back pressure steel plate; the pre-pressed steel wire ropes are in a folded line state; one ends of the pre-pressed steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, and the other ends of the pre-pressed steel wire ropes pass through the corresponding steel wire rope turning elements and turn back, penetrate through the floating back pressure steel plate from the portions beside fixing points, on the floating back pressure steel plate, of the pre-pressed steel wire ropes, and are anchored to a base through steel wire rope self-locking tensioning anchors; and the tension needed for tensioning the pre-pressed steel wire ropes to the preset initial vertical rigidity enables a composite spring to be clamped between a drive press plate and the floating back pressure steel plate all the time.
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 three-dimensional shock isolation support that can adjust vertical initial stiffness, should
Three-dimensional isolation device both compressible passive energy dissipation, and stretchable passive energy dissipation；But also maintain spring in vertical earthquake isolating bearing
Effective active length.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of three-dimensional shock isolation support that can adjust 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
Spring is coaxially provided with to set is internal, the top of the spring is provided with driving pressing plate；The lower connection of described laminated rubber damping bearing
The middle part of plate lower surface is raised to fairlead sunken inside formation one, and the projection is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is complex spring (full name is rubber-metal spiral complex spring), and the external diameter of the complex spring is less than
The internal diameter of fairlead, forms therebetween an annular space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing；The backpressure device includes more than three pre-
The compressed steel cord steel wire rope break-in element equal with the precompressed steel wire rope quantity steel wire rope equal with precompressed steel wire rope quantity is certainly
Lock tensioning anchorage and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between complex spring 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 described annular space 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, floating back-pressure steel plate then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate,
It is anchored on base by steel wire rope self-locking tensioning anchorage；On described floating back-pressure steel plate, in each precompressed steel wire penetrating
Position is equipped with the through hole through precompressed steel wire rope, and the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
Described fairlead and drive dynamic cooperation is respectively adopted between pressing plate and floating back-pressure steel plate；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is arranged, described complex spring is set to be clamped in all the time
Drive 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 shock isolation support 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 combined spring；When dynamic loading edge
When the axis of fairlead is acted on opposite to each other, pulling force is delivered to driving pressing plate via tensile steel wire rope, drives and moved on pressing plate, and pre- compressed steel
Cord is then reversely sling floating back-pressure steel plate compression complex spring by steel wire rope break-in element.As can be seen here, axial dynamic loading
It is no matter relative or act on three-dimensional shock isolation support opposite to each other, can compression combined spring so as to elastic deformation occurs and consumes 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 precompressed steel wire rope is how many greatly, should be not disturbing and affect moving up and down for floating back-pressure steel plate to be 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 three-dimensional shock isolation support that vertical initial stiffness can be adjusted 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.
To prevent described complex spring two from sliding on the driving pressing plate and floating back-pressure steel plate, the present invention's is another
Individual improvement project is：The surface for driving pressing plate relative with floating back-pressure steel plate is equipped with locating ring, the complex spring two
Head is embedded in respectively in described locating ring.
The three-dimensional shock isolation support that vertical initial stiffness can be adjusted 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 a complex 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
Shock isolating pedestal 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 initial stiffness, effective active length of the complex spring is constant, will not change complex spring
Original characterisitic parameter.
(5) 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, it is ensured that the equalization of strain of all precompressed steel wire ropes, and two is using anti-torsion compression spring and first
The synergy of self-centering locking fixture can effectively prevent precompressed steel wire rope from twisting during length adjustment is carried out and changing
The characterisitic parameter of wire digging line.
(6) 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. 1～7 are the structural representation of a specific embodiment of three-dimensional shock isolation support 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 upward view, and Fig. 6 is Fig. 1 offices
The schematic enlarged-scale view in portion I, Fig. 7 is the schematic enlarged-scale view of Fig. 1 local II.
Fig. 8～12 are the structural representation that steel wire rope self-locking is tensioned anchorage in the illustrated embodiment of Fig. 1～7, wherein, Fig. 8 is
Front view (section view), dotted line represents precompressed steel wire rope in figure, and Fig. 9 is upward view, and Figure 10 is the E-E profiles of Fig. 8, and Figure 11 is figure
8 F-F profiles, Figure 12 is the G-G sectional views of Fig. 8.
Figure 13～17 are the structural representation of second 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 H-H sectional views (omitting precompressed steel wire rope) of Figure 13, and Figure 15 is the I-I section views of Figure 13
Figure (omits precompressed steel wire rope), and Figure 16 is upward view, and Figure 17 is the J-J cutaway view Amplified images of Figure 14.
Figure 18～21 are the structural representation of the 3rd specific embodiment of three-dimensional vibration isolating device of the present invention, its
In, Figure 18 is front view (section view), and Figure 19 is the K-K sectional views (omitting precompressed steel wire rope) of Figure 18, and Figure 20 is cutd open for the L-L of Figure 18
View (omits precompressed steel wire rope), and Figure 21 is the schematic enlarged-scale view of Figure 18 local III.
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 be fixed by screws in upper junction plate 15 and lower connecting plate 8 respectively together with.Described six roots of sensation tensile steel wire rope 16 is around lamination rubber
The axis of rubber cushion 17 is symmetrically distributed in its surrounding, and of each tensile steel wire rope 16 is fixed on upper company by lifting bolt 10
On fishplate bar 15, other end is fixed on lower connecting plate 8 by lifting bolt 10.Each tensile steel wire rope 16 is tensioned, and resists the six roots of sensation
The tension force sum for drawing steel wire rope 16 is equal to the vertical design dead load of three-dimensional vibration isolating device described in this example, and after being tensioned, Mei Yigen
Axis of the tensile steel wire rope 16 each parallel to laminated rubber bearing 17.
Referring to Fig. 1～7, the vertical earthquake isolating bearing includes fairlead 1, base 3, complex spring 4 and 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, the complex spring 4 is by cylindrical helical compression spring 4-1 and is wrapped in cylindrical helical compression
Rubber spring 4-2 composite sulfurations outside spring 4-1 are formed.Described complex spring 4 is coaxially located in fairlead 1, the compound bullet
The upper end of spring 4 is provided with and the dynamic driving pressing plate 7 for coordinating of the fairlead 1.The external diameter of the complex spring 4 is less than fairlead 1
Internal diameter, forms therebetween an annular space.The middle part of the lower surface of the lower connecting plate 8 is to the sunken inside shape of the fairlead 1
Into the raised 8-1 of teacupful shape, the raised 8-1 is fixed together with described driving pressing plate 7 by screw.
Referring to Fig. 1, the gap 14 more than amplitude is provided between lower connecting plate 8 and the annular edge of a wing 2；In order to avoid vibration processes
Described in drive and produce between pressing plate 7 and the annular edge of a wing 2 shock, be provided between anticollision between the driving pressing plate 7 and the annular edge of a wing 2
Gap 13.
Referring to Fig. 1～3, described backpressure device is located in the annular space, 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 three steel wire ropes
Self-locking tensioning anchorage 19 is constituted.Wherein,
Described floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
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. 8～12, each steel wire rope self-locking tensioning anchorage 19 is locked by the first self-centering locking fixture, the second self-centering
Clamper, anti-torsion compression spring 19-1 and plane bearing 19-2 composition, wherein：
The first described self-centering locking fixture has a connecting seat 19-3, and the edge of connecting seat 19-3 is provided with installing hole
19-12, is provided with axially extending cylindrical boss 19-4 in the middle part of lower end, the internal of boss 19-4 is provided with first along axial line
Taper hole 19-5, is provided with the first taper jaw 19-7 being made up of 3 claw pieces in the taper hole, the outer peripheral face of the boss 19-4 is arranged
There is tensioning swivel nut 19-6, be threadedly coupled therebetween；Wherein, the microcephaly of first tapered clamp 19-7 points to connecting seat 19-3,
The outer peripheral face of the tensioning swivel nut 19-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 19-8, internal being sequentially provided with along axis of tapered sleeve 19-8
One section of second taper hole 19-19 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 19-19
Jaw 19-9, is provided with hollow bolt 19-10, the head of hollow bolt 19-10 and the second taper jaw 19- in described screwed hole
9 major part is relative, and the outer peripheral face of the tapered sleeve 19-8 is regular hexagon；
Described plane bearing 19-2 is by ball-retainer component 19-11 and is respectively provided at tensioning swivel nut 19-6 and tapered sleeve
Ring raceway on 19-8 relative end face is constituted, wherein in described ring raceway and ball-retainer component 19-11
Ball matches；
The second self-centering locking fixture is located at the outside of tensioning swivel nut 19-6 heads, and the second taper jaw 19-9
Microcephaly is consistent with the sensing of the first taper jaw 19-7 microcephalies；Described plane bearing 19-2 be located at the tensioning swivel nut 19-6 and
Between tapered sleeve 19-8, described anti-torsion compression spring 19-1 is located in the endoporus of tensioning swivel nut 19-6.When precompressed steel wire rope 9 is by
Jing is anti-between the calvus of one taper jaw 19-7 turns round centre bore of compression spring 19-1 with plane bearing 19-2 and the second taper
After passing between the calvus of jaw 19-9, under the tension force effect of precompressed steel wire rope 9, an anti-work for turning round compression spring 19-1
On the first taper jaw 19-7, other end is acted on tapered sleeve 19-8.
Referring to Fig. 1,4 and Fig. 7, the connecting seat 19-3 of each steel wire rope self-locking tensioning anchorage 19 is fixed on bottom by screw respectively
The lower surface at the middle part of the protuberance of seat 3, 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 institute
State the height that steel wire rope self-locking is tensioned anchorage 19.
Referring to Fig. 1～7, 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, three are correspondingly provided with floating back-pressure steel plate 11 by the relative position of set three lifting bolts 10
The steel wire rope self-locking is tensioned anchorage 19；Three precompressed steel wire ropes 9 are distributed in the annular space with broken line state, and each
One of root precompressed steel wire rope 9 is to connect to be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, and other end passed around phase
To a lifting bolt 10 as steel wire rope break-in element after turn back, then the precompressed steel wire rope 9 from it in floating back-pressure
The position of set steel wire rope self-locking tensioning anchorage 19 passes through floating back-pressure steel plate on fixing point side correspondence base 3 on steel plate 11
11, it is anchored on base 3 by steel wire rope self-locking tensioning anchorage 19；On described floating back-pressure steel plate 11, in each pre- compressed steel
Cord 9 is equipped with the through hole 12 through precompressed steel wire rope 9 through position, and the aperture of the through hole 12 is more than the precompressed steel wire rope 9
Diameter；On described base 3, the anchor hole of anchoring precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9
3-1。
The surface for driving pressing plate 7 relative with floating back-pressure steel plate 11 is equipped with the external diameter phase of internal diameter and complex spring 4
The locating ring 18 of matching, two of the complex spring 4 is embedded in drives pressing plate 7 and the locating ring 18 on floating back-pressure steel plate 11 respectively
It is interior.
Referring to Fig. 1～7 and with reference to Fig. 8～12, 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 the spy for needing default vertical initial stiffness and complex spring 4
Property parameter, calculate precompressed steel wire rope 9 meet preset vertical initial stiffness tension force；(2) by Fig. 1 by the vertical earthquake isolating bearing
Assemble, make the first tapered clamp of the other end of each precompressed steel wire rope 9 from corresponding steel wire rope self-locking tensioning anchorage 19
Pass in pawl 19-7, the centre bore of the second taper jaw 19-9 and hollow bolt 19-10；Then, (3) are the pre- steel wire for exposing
The fag end system of rope 9 is connected on traction stretching machine, and monitors precompressed steel wire rope 9 using tension detecting instrument while tensioning is drawn
Tension force；When tension force needed for the precompressed steel wire rope 9 is tensioned to default vertical initial stiffness, the second self-centering locking is moved forward
Fixture, while adjust turning tensioning swivel nut 19-6 so that plane bearing 19-2 is clamped tightly at the tensioning swivel nut 19-6 with cone
Between set 19-8, and anti-torsion compression spring 19-1 is compressed, and the tension force produced by it promotes the first taper jaw 19-7 to move forward will
Precompressed steel wire rope 9 is clamped, turn thereafter described hollow bolt 19-10 will in the second taper jaw 19-9 precompressed steel wire rope
9 folders are dead；Traction stretching machine is removed, unnecessary precompressed steel wire rope 9 is blocked, you can complex spring 4 is clamped in into all the time driving pressing plate 7
Between floating back-pressure steel plate 11；(4) finally press Fig. 1 and 4 and laminated rubber damping bearing is arranged on into the upper of the lower connecting plate 8
Side, obtains final product the three-dimensional shock isolation support.
Referring to Fig. 1 and Fig. 8～12, in the work progress for installing shock isolating pedestal or in routine maintenance procedure, if it find that
The tension force of certain precompressed steel wire rope 9 is not enough, you can the tensioning swivel nut 19-6 turned in steel wire rope self-locking tensioning anchorage 19 is adjusted.
When presetting vertical initial stiffness, the tension force sum of three precompressed steel wire ropes 9 need to be more than or equal to the three-dimensional isolation
The erect static load lotus that seat is born.
Under ideal conditions, the vertical ripple of earthquake should be unable to occur by shock isolating pedestal to building during building transmission
Displacement.Based on this, the operation principle of this example three-dimensional shock isolation support 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 complex spring 4, and building is motionless with shifting on ground for base 3；If the dynamic loading edge
The drop-down base 3 of axis of fairlead 1, precompressed steel wire rope 9 is then reversely hung by the lifting bolt 10 as steel wire rope break-in element
Floating back-pressure steel plate 11 is played, upwards compression combined spring 4, base 3 is moved down with ground, but building is still motionless.As can be seen here,
When P wave makes ground generation up-down vibration, compressible complex spring produces elastic deformation and consumes energy.In the same manner, building
To the dynamic loading that the three-dimensional shock isolation support is produced it is no matter pulling force to it when rocking in the presence of wind shake or flatly seismic wave
Or the compressible complex spring of pressure produces elastic deformation and consumes energy.
Example 2
Referring to Figure 13～17, this example has been substantially carried out following some improvement on the basis of example 1：(1) by precompressed steel wire rope 9
Four are increased to by three；(2) U-shaped component 20 will be replaced with as the lifting bolt 10 of steel wire rope break-in element；(3) will be fixed pre-
The steel wire rope self-locking tensioning anchorage 19 of the other end of compressed steel cord 9 increases to four；(4) described backpressure device is correspondingly changed
For：
Described backpressure device is only used as the U-shaped component 20, of steel wire rope break-in element by four precompressed steel wire ropes 9, four
The lifting bolt 10 and four fixed precompressed steel wire ropes 9 of fixed 9 one, the precompressed steel wire rope of block floating back-pressure steel plate 11, four is another
The steel wire rope self-locking tensioning anchorage composition of head；Wherein,
Floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
The four U-shaped components 20 for being only used as steel wire rope break-in element fix the drive around the axisymmetrical of described fairlead 1
Positioned at the lower surface of the surrounding of the complex spring 4 on dynamic pressure plate 7；Referring to Figure 17, described U-shaped component 20 bends structure by round steel
Into, it is described to drive on pressing plate 7, the circle matched with 20 two sides of U-shaped component is provided with the relevant position for arranging U-shaped component 20
Hole, the U-shaped component 20 is inserted in the circular hole, and the two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with four lifting bolts 10；The base 3
Outside, is correspondingly provided with four steel wire ropes certainly on floating back-pressure steel plate 11 by the relative position of set four lifting bolts 10
Lock tensioning anchorage 19；Four precompressed steel wire ropes 9 are distributed in the annular space with broken line state, and each precompressed steel wire rope
One of 9 is to connect to be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, and other end passed around a relative conduct
Turn back after the U-shaped component 20 of steel wire rope break-in element, then the precompressed steel wire rope 9 is from its fixation on floating back-pressure steel plate 11
The position of set steel wire rope self-locking tensioning anchorage 19 passes through floating back-pressure steel plate 11 on correspondence base 3 beside, by steel wire rope certainly
Lock tensioning anchorage 19 is anchored on base 3；On described floating back-pressure steel plate 11, in each precompressed steel wire rope 9 position is passed through
The through hole 12 through precompressed steel wire rope 9 is equipped with, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9；Described
On base 3, the anchor hole 3-1 of anchoring precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for the shock isolating pedestal 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 18～21, 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 21；(2) described backpressure device is changed accordingly to：
Described backpressure device is only used as 21, one piece of the fixed pulley of steel wire rope break-in element by six roots of sensation precompressed steel wire rope 9, six
The lifting bolt 10 of fixed 9 one, the precompressed steel wire rope of floating back-pressure steel plate 11, six and six fixed other ends of precompressed steel wire rope 9
Steel wire rope self-locking tensioning anchorage composition；Wherein,
Floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
Six fixed pulleys 21 for being only used as steel wire rope break-in element fix the driving around the axisymmetrical of described fairlead 1
Positioned at the lower surface of the surrounding of the complex spring 4 on pressing plate 7；Wherein, described fixed pulley 21 is hinged on support, the support weldering
It is connected on driving pressing plate 7；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with six lifting bolts 10；The base 3
Outside, is correspondingly provided with six steel wire ropes certainly on floating back-pressure steel plate 11 by the relative position of set six lifting bolts 10
Lock tensioning anchorage 19；Six roots of sensation precompressed steel wire rope 9 is distributed in the annular space with broken line state, and each precompressed steel wire rope
One of 9 is to connect to be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, and other end passed around a relative conduct
Turn back after the fixed pulley 21 of steel wire rope break-in element, then the precompressed steel wire rope 9 is from its fixation on floating back-pressure steel plate 11
The position of set steel wire rope self-locking tensioning anchorage 19 passes through floating back-pressure steel plate 11 on correspondence base 3 beside, by steel wire rope certainly
Lock tensioning anchorage 19 is anchored on base 3；On described floating back-pressure steel plate 11, in each precompressed steel wire rope 9 position is passed through
The through hole 12 through precompressed steel wire rope 9 is equipped with, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9；Described
On base 3, the anchor hole 3-1 of anchoring precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for the shock isolating pedestal of Antiseismic building described in this example is same as Example 1, and the public can refer to example 1 voluntarily
Analysis.
Claims (3)
1. a kind of energy adjusts the three-dimensional shock isolation support of vertical initial stiffness, and the three-dimensional isolation device includes that what is 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 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 spring, and the top of the spring is provided with driving pressing plate；Under the lower connecting plate of described laminated rubber damping bearing
The middle part on surface is raised to fairlead sunken inside formation one, and the projection is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is complex spring, and the external diameter of the complex spring forms therebetween one annular less than the internal diameter of fairlead
Space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing；The backpressure device includes the pre- compressed steel of more than three
The cord steel wire rope break-in element equal with the precompressed steel wire rope quantity steel wire rope self-locking equal with precompressed steel wire rope quantity
Tight anchorage and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between complex spring 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 described annular space with broken line state, and of each precompressed steel wire rope
It is fixed on floating back-pressure steel plate around the axisymmetrical of described fairlead, other end passed around a relative steel wire rope break-in
Turn back after element, floating back-pressure steel plate is then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate, by steel
Cord self-locking tensioning anchorage is anchored on base；On described floating back-pressure steel plate, each precompressed steel wire penetrating position
The through hole through precompressed steel wire rope is equipped with, the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
Described fairlead and drive dynamic cooperation is respectively adopted between pressing plate and floating back-pressure steel plate；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is arranged, described complex spring is set to be clamped in driving all the time
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.
2. a kind of energy according to claim 1 adjusts the three-dimensional shock isolation support of vertical initial stiffness, it is characterised in that described
Steel wire rope break-in element be fixed pulley, lifting bolt or U-shaped component.
3. a kind of energy according to claim 1 and 2 adjusts the three-dimensional shock isolation support of vertical initial stiffness, it is characterised in that
The surface for driving pressing plate relative with floating back-pressure steel plate is equipped with locating ring, and described complex spring two is embedded in respectively described
Locating ring in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905714.6A CN106639023A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock isolation device with adjustable initial vertical rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905714.6A CN106639023A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock isolation device with adjustable initial vertical rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639023A true CN106639023A (en) | 2017-05-10 |
Family
ID=58856552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905714.6A Pending CN106639023A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock isolation device with adjustable initial vertical rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639023A (en) |
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 |
| JPH11175074A (en) * | 1997-12-16 | 1999-07-02 | Toru Endo | Seesaw rod type low-frequency sound insulating device |
| 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 |
| CN101545288A (en) * | 2009-04-17 | 2009-09-30 | 同济大学 | Tensile device for shock insulation layer |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed-tendon anchor with high accuracy and free adjustment and control functions |
-
2016
- 2016-10-17 CN CN201610905714.6A patent/CN106639023A/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 |
| JPH11175074A (en) * | 1997-12-16 | 1999-07-02 | Toru Endo | Seesaw rod type low-frequency sound insulating device |
| 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 |
| CN101545288A (en) * | 2009-04-17 | 2009-09-30 | 同济大学 | Tensile device for shock insulation layer |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed-tendon anchor with high accuracy and free adjustment and control functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106369096B (en) | A kind of adjustable back pressure type disk spring damper of initial stiffness | |
| CN106639456A (en) | Back pressure disc-shaped spring damper with adjustable rigidity | |
| CN106593052A (en) | Three-dimensional vibration isolation support seat with adjustable vertical initial rigidity | |
| CN106567461A (en) | Three-dimensional shock isolation support adjustable in vertical initial stiffness | |
| CN106545101A (en) | The three-dimensional isolation device that a kind of vertical initial stiffness can be adjusted | |
| CN106593053A (en) | Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity | |
| CN106499079A (en) | A kind of three-dimensional isolation device of adjustable vertical to early stage rigidity | |
| CN106436918A (en) | Three-dimensional shock insulation support capable of presetting vertical early rigidity | |
| CN106381930A (en) | Three-dimensional vibration isolation device capable of presetting vertical initial rigidity | |
| CN106382322B (en) | A kind of complex spring damper of adjustable initial stiffness | |
| CN106381932A (en) | Three-dimensional vibration isolation support with adjustable vertical early-stage rigidity | |
| CN106639023A (en) | Three-dimensional shock isolation device with adjustable initial vertical rigidity | |
| CN106401000A (en) | Vertical initial rigidity adjustable three-dimensional shock insulation device | |
| CN106567586A (en) | Three-dimensional shock isolation device adjustable in vertical initial stiffness | |
| CN106285145B (en) | Three-dimensional shock insulation support capable of adjusting vertical early rigidity | |
| CN106382321B (en) | A kind of adjustable back pressure type coiled spring damper of initial stiffness | |
| CN106481131A (en) | A kind of three-dimensional shock isolation support of predeterminable vertical initial stiffness | |
| CN106567588A (en) | Three-dimensional shock isolation device with vertical initial stiffness capable of being preset | |
| CN106499244A (en) | The three-dimensional isolation device that a kind of vertical early stage rigidity can be adjusted | |
| CN106436917A (en) | Three-dimensional seismic isolation bearing capable of adjusting vertical early rigidity | |
| CN106567587A (en) | Three-dimensional shock isolation device adjustable in vertical initial stiffness | |
| CN106499243A (en) | A kind of three-dimensional shock isolation support of adjustable vertical to early stage rigidity | |
| CN106567589A (en) | Rubber damper capable of adjusting initial stiffness | |
| CN106567322A (en) | Helical compression spring damper with presettable initial stiffness | |
| CN106567584A (en) | Three-dimensional shock isolation device with vertical initial stiffness capable of being preset |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |