CN106401000A - Vertical initial rigidity adjustable three-dimensional shock insulation device - Google Patents
Vertical initial rigidity adjustable three-dimensional shock insulation device Download PDFInfo
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- CN106401000A CN106401000A CN201610906006.4A CN201610906006A CN106401000A CN 106401000 A CN106401000 A CN 106401000A CN 201610906006 A CN201610906006 A CN 201610906006A CN 106401000 A CN106401000 A CN 106401000A
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- steel wire
- wire rope
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Classifications
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- 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
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a vertical initial rigidity adjustable three-dimensional shock insulation device. The three-dimensional shock insulation device comprises a vertical shock insulation support seat and laminated rubber shock insulation support seats, wherein the vertical shock insulation support seat and the laminated rubber shock insulation support seats are mutually connected in series. The three-dimensional shock insulation device is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical shock insulation support seat, the back pressure device comprises more than three prepressing steel wire ropes, steel wire rope turning elements, steel wire rope self-locking tensioning anchors and a floating back pressure steel plate, wherein the number of the steel wire rope turning elements is equal to that of the prepressing steel wire ropes, the number of the steel wire rope self-locking tensioning anchors is equal to that of the prepressing steel wire ropes, the prepressing steel wire ropes are in the state of broken lines, one end of each prepressing steel wire rope is symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, the other end of each prepressing steel wire rope bypasses one opposite steel wire rope turning element, then turns back and then passes through the floating back pressure steel plate so as to be anchored to a base by one steel wire rope self-locking tensioning anchor, and the prepressing steel wire ropes are tensioned to tension required by preset initial rigidity, so that a cylindrical helical compression spring is clamped between a driving pressing 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 is and in particular to one kind by laminated steel and rubber pillow and is erected
Three-dimensional isolation device to shock isolating pedestal series connection.
Background technology
Earthquake isolating equipment is the shockproof isolating device being located between building and basis.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, the level that can only isolate seismic wave is divided
Amount.Raising earthquake Multi-attributes being recognized with people, three-dimensional isolation device is gradually paid attention to by this area researcher.?
Common three-dimensional isolation device is exactly to be in series with existing vertical earthquake isolating bearing by laminated rubber damping bearing.
The application for a patent for invention of Publication No. CN 102409777 A discloses a kind of structure three-dimensional shock insulation and antidumping dress
Put, the main body mechanism of this device is in series with spring shock-proof bearing 15 by laminated rubber damping bearing 14, described agent structure
Upper and lower side be respectively arranged with upper junction plate 1 and lower connecting plate 18 it is characterised in that：Described upper junction plate 1 and lower connecting plate 18
Between be provided with around the agent structure surrounding uniform tensile steel wire rope 16 of dislocation, described tensile steel wire rope 16 pole in the horizontal direction
Limit deflection is more than the horizontal shear elastic deformation amount of main body mechanism.Although scheme can improve three-dimensional isolation described in this patent application
The tensile strength of device, 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, be not easy to default earthquake intensity and reduce 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 ", this damper includes shell, the load connecting rod being located inside the shell and two groups of disk springs, described, and described load connects
The middle part of bar is provided with the regulation gear being connected therewith, the load connecting rod of described regulation gear both sides is respectively equipped with load even
The left-handed nut of extension bar screw thread cooperation and right-handed nut, described two groups of disk springs are respectively provided at described left-handed nut and dextrorotation spiral shell
Female outside, and be clamped in respectively between described left-handed nut or right-handed nut and the shrouding of outer casing end.Switch is only needed to carry
Regulation gear in lotus connecting rod, makes described left-handed nut and right-handed nut mutually draw close or away from i.e. adjustable two groups of dish-shaped bullets
The pretightning force of spring thus the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invention still has following deficiency：1st, described load connecting rod is to keep balance under the collective effect of two groups of disk springs, two
Although the pretightning force of group disk spring can be adjusted, adjust, two groups of disk springs work to load connecting rod anyway
Firmly all one group of power equal in magnitude, in opposite direction, only need to apply in load connecting rod any external force all can destroy this
Balance, makes two groups of disk springs deform, so described damper cannot preset initial stiffness；2nd, must join in this invention
Close and use two groups of disk springs, all could be provided damping when damper presses or draws load, this not only causes certain
Waste, so that the length of damper is greatly increased.
The application for a patent for invention of Publication No. CN101457553A discloses one kind, and " spring stiffness adjustable tuning quality subtracts
Shake device ", this shock absorber is a kind of composite buffer, changes its characteristic frequency by changing the thickness of mass, viscous by changing
The flow of the working media of stagnant damper changes its damping ratio, changes its rigidity by the effective active length changing spring, its
The means of the middle effective active length changing spring have three kinds, and one is section spring being located in solidification cylinder using curing materials
Solidification, two fill in constraint block toward intracardiac in helical spring, and the two interference fit, make the one section of spring contacting with constraint block
Lost efficacy, three is to arrange helical raised on constraint block surface, and helical raised is stuck between spring wire, makes card between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in this patent application scheme can change rigidity, institute
Not only effectively active length substantially shortens the spring stated, and can only compress passive energy dissipation it is impossible to stretch passive energy dissipation.
Content of the invention
The technical problem to be solved is to provide a kind of three-dimensional isolation device that can adjust 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 cylindrical helical compression spring.
The present invention solve above-mentioned technical problem technical scheme be：
A kind of three-dimensional isolation device that can adjust vertical initial stiffness, this three-dimensional isolation device includes being sequentially connected in series up and down
Laminated rubber damping bearing and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing include upper junction plate, lower connecting plate, be clamped in be vertically connected with folded between plate
Layer rubber blanket and at least three tensile steel wire ropes being distributed on laminated rubber bearing surrounding；One of described 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 points is parallel to described laminated rubber bearing
Axis；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described lead
It is coaxially provided with cylindrical helical compression spring to set is internal, the top of this cylindrical helical compression spring is provided with driving pressing plate；Institute
The middle part of the lower connecting plate lower surface of the laminated rubber damping bearing stated extends a projection, this projection and institute into described fairlead
The driving pressing plate stated is fixedly connected；
It is characterized in that,
It is additionally provided with backpressure device, this backpressure device includes the precompressed of more than three in the fairlead of described vertical earthquake isolating bearing
The steel wire rope self-locking equal with precompressed steel wire rope quantity of the steel wire rope steel wire rope break-in element equal with precompressed steel wire rope quantity
Tensioning anchorage and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between cylindrical helical compression spring and base；
Described steel wire rope break-in element is on the fixing described driving pressing plate of 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 composition, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and the middle part of this connecting seat one end is provided with axially extended
Cylindrical boss, the internal of this boss is provided with, along axial line, the first taper jaw being made up of 3～5 claw pieces, and outer peripheral face is sheathed
There is tensioning swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is positive six sides
Shape；
B the second self-centering locking fixture described in) has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 along axis
Second taper jaw of claw piece composition and hollow bolt, wherein, the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon to major part；
C the plane bearing described in) is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
On ring raceway constitute, wherein said ring raceway matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described tensioning swivel nut head, and the second taper jaw microcephaly
Consistent with the sensing of the first taper jaw microcephaly；Described plane bearing is located between described tensioning swivel nut and tapered sleeve, described
Anti- torsion compression spring is located in the endoporus of tensioning swivel nut；Turn round pressure through anti-between precompressed steel wire rope is by the calvus of the first taper jaw
After passing between the calvus of the centre bore of contracting spring and plane bearing and the second taper jaw, in the effect of precompressed steel wire rope tension
Under, described anti-turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Described precompressed steel wire rope is distributed in the center in the hole of cylindrical helical compression spring with broken line state, and each
One axisymmetrical around described fairlead of precompressed steel wire rope is fixed on floating back-pressure steel plate, and other end passed around relatively
A steel wire rope break-in element after turn back, then pass through floating by fixing point on floating back-pressure steel plate for this precompressed steel wire rope
Dynamic back-pressure steel plate 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 this through hole is more than the straight of described precompressed steel wire rope
Footpath；
By precompressed steel wire tensioning to arranging tension force needed for vertical initial stiffness, make described cylindrical helical compression spring
All the time it is clamped between driving pressing plate and floating back-pressure steel plate；
Described tensile steel wire rope tensioning is provided the precompression being equal to design dead load for laminated rubber bearing.
The operation principle of above-mentioned three-dimensional isolation device vertical earthquake isolating is as follows：When vertical dynamic loading is relative along the axis of fairlead
During effect, pressure is delivered to driving pressing plate via laminated rubber damping bearing, is allowed to move down compression cylindrical helical compression spring；
When dynamic loading acts on opposite to each other along the axis of fairlead, pulling force is delivered to driving pressing plate via tensile steel wire rope, drives on pressing plate
Move, and precompressed steel wire rope is then reversely sling floating back-pressure steel plate compression cylindrical helical compression bullet by steel wire rope break-in element
Spring.As can be seen here, no matter relative axial dynamic loading is or acts on three-dimensional isolation device opposite to each other, can compress cylindrical helical
So as to there is elastic deformation and consuming energy in compression spring.
From above-mentioned operation principle, logical on the precompressed steel wire rope described in the course of work and described floating back-pressure steel plate
The hole wall in hole can not produce friction, otherwise interferes with moving up and down of floating back-pressure steel plate, and therefore described through-hole diameter compares institute
The diameter stating precompressed steel wire rope is how many greatly, should be not disturb and to affect moving up and down of 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 etc..
The three-dimensional isolation device that vertical initial stiffness can be adjusted of the present invention, wherein said precompressed steel wire rope is fixed
On floating back-pressure steel plate one can may also be employed similar lifting bolt system and connect fixation using being welded and fixed.
The three-dimensional isolation device 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；Can effectively build depletion high level
Build the huge pulling force that thing produces to building foundation due to waving；And only needing a spring, vertical extension is little, good stability.
(2) after vertical dynamic loading is more than the defensive ability/resistance ability of default vertical initial stiffness, in the present invention, vertical earthquake isolating props up
The bidirectional elastic deformation of seat is symmetrical, does not therefore affect the effect of its compression power consumption because of the change of the positive negative direction of vertical load
Really；
(3) as long as the length changing precompressed steel wire rope can change the vertical initial stiffness of whole device, external force is overcoming
Earthquake isolating equipment cannot be made before this 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 reduce the shockproof cost of wind resistance；
(4), during presetting initial stiffness, effective active length of described cylindrical helical compression spring is constant, Bu Huigai
Become the original characterisitic parameter of cylindrical helical compression spring.
(5) the characteristic reasonable selection that butterfly spring can be utilized is preset initial stiffness, and then is selected the feature frequency of earthquake isolating equipment
Domain scope, avoids the frequency domain of the intrinsic frequency domain of building structure and vertically seismic wave, prevents from resonating.
(6) thing that can effectively buffer building rocks stretching and the compression shock that trend produces to building basis, further
Reduce the risk that building topples.
Brief description
Fig. 1～7 are the structural representation of a specific embodiment of three-dimensional isolation device of the present invention, and wherein, Fig. 1 is
Front view (the D-D rotation of Fig. 3 is cutd open), Fig. 2 is the A-A sectional view (omitting precompressed steel wire rope) of Fig. 1, and Fig. 3 is the B-B section view of Fig. 1
Figure (omits precompressed steel wire rope), and Fig. 4 is the C-C sectional view (omitting tensile steel wire rope) of Fig. 1, and Fig. 5 is upward view, and Fig. 6 is Fig. 1 office
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 of steel wire rope self-locking tensioning anchorage in the illustrated embodiment of Fig. 1～7, and wherein, Fig. 8 is
Front view (section view), in figure dotted line represents precompressed steel wire rope, and Fig. 9 is upward view, and Figure 10 is the E-E profile of Fig. 8, and Figure 11 is figure
8 F-F profile, Figure 12 is the G-G sectional view 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 view (omitting precompressed steel wire rope) of Figure 13, and Figure 15 is the I-I section view 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 image of Figure 14.
Figure 18～22 be three-dimensional vibration isolating device of the present invention the 3rd specific embodiment structural representation, its
In, Figure 18 is front view (section view), and Figure 19 is the K-K sectional view (omitting precompressed steel wire rope) of Figure 18, and Figure 20 is that the L-L of Figure 18 cuts open
View (omits precompressed steel wire rope), and Figure 21 is the schematic enlarged-scale view of Figure 18 local III, and Figure 22 is that the structure of Figure 18 local IV is amplified
Figure.
Specific embodiment
Example 1
Referring to Fig. 1, the three-dimensional shock isolation support in this example is propped up by the laminated rubber damping bearing connected up and down and vertical earthquake isolating
Seat composition.
Referring to Fig. 1 and Fig. 4, described laminated rubber damping bearing includes upper junction plate 15, lower connecting plate 8, be clamped on
Laminated rubber bearing 17 between lower connecting plate and six roots of sensation tensile steel wire rope 16；Wherein, described upper junction plate 15 and lower connecting plate 8
All in the form of annular discs, the edge of upper junction plate 15 is provided with installing hole 6；The main body of described 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 described laminated rubber bearing 17 main body is equipped with connection steel plate 17-4, described two pieces of connection steel plate 17-
4 are welded and fixed together with upper junction plate 15 and lower connecting plate 8 respectively.Described six roots of sensation tensile steel wire rope 16 is around laminated rubber bearing
17 axis is symmetrically distributed in its surrounding, and one 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.The tensioning of each tensile steel wire rope 16, 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 tensioning, each tension
Steel wire rope 16 is each parallel to the axis of laminated rubber bearing 17.
Referring to Fig. 1～7, described vertical earthquake isolating bearing includes fairlead 1, base 3, cylindrical helical compression spring 4 and anti-
Pressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is radially shunk and formed spacing and guiding work
The annular edge of a wing 2, lower end extends radially outwards formation one ring flange 5.Formation inversion is swelled at the middle part of described base 3 upwards
Washbowl shape, the edge of surrounding is provided with installing hole 6, and the ring flange 5 that described fairlead 1 passes through set by lower end is fixed on its protuberance
Middle part upper surface.
Referring to Fig. 1～3, described cylindrical helical compression spring 4 is located in fairlead 1, this cylindrical helical compression bullet
The upper end of spring 4 is provided with the driving pressing plate 7 moving cooperation with described fairlead 1, and the middle part of described lower connecting plate 8 lower surface is led to described
Extend the projection of a cylinder into set 1, this raised with described driving pressing plate 7 is fixed together by screw.Referring to
Fig. 1, is provided with the gap 14 more than amplitude between lower connecting plate 8 and the annular edge of a wing 2；In order to avoid driving pressure described in vibration processes
Produce between plate 7 and the annular edge of a wing 2 and clash into, between described driving pressing plate 7 and the annular edge of a wing 2, be provided with anticollision gap 13.
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 of 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 fixing 9 one, precompressed steel wire rope and three steel wire ropes
Self-locking tensioning anchorage 18 forms.Wherein,
Described floating back-pressure steel plate 11 is located between cylindrical helical compression spring 4 and base 3；
The lifting bolt 10 that described three are only used as steel wire rope break-in element is fixed around the axisymmetrical of described fairlead 1
On described driving pressing plate 7.
Referring to Fig. 8～12, each steel wire rope self-locking tensioning anchorage 18 is by the first self-centering locking fixture, the second self-centering lock
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 this connecting seat 18-3 is provided with installing hole
18-12, the middle part of lower end is provided with axially extended cylindrical boss 18-4, and the internal of this 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 this taper hole, the outer peripheral face of described boss 18-4 is sheathed
There is tensioning swivel nut 18-6, threaded therebetween；Wherein, the microcephaly of described first tapered clamp 18-7 points to connecting seat 18-3,
The outer peripheral face of described 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 this tapered sleeve 18-8
One section of second taper hole 18-13 and one section of screwed hole；Wherein, it is provided with, in the second taper hole 18-13, the second taper being made up of 3 claw pieces
Jaw 18-9, described screw thread in the hole is provided with hollow bolt 18-10, the head of hollow bolt 18-10 and the second taper jaw 18-
Relatively, the outer peripheral face of described tapered sleeve 18-8 is regular hexagon to 9 major part；
Described plane bearing 18-2 by ball retainer assembly 18-11 and is respectively provided at tensioning swivel nut 18-6 and tapered sleeve
Ring raceway on the relative end face of 18-8 is constituted, in wherein said ring raceway and ball retainer assembly 18-11
Ball matches；
Described second self-centering locking fixture is located at the outside of tensioning swivel nut 18-6 head, and the second taper jaw 18-9
Microcephaly is consistent with the sensing of the first taper jaw 18-7 microcephaly；Described plane bearing 18-2 be located at described tensioning swivel nut 18-6 with
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
Centre bore through anti-torsion compression spring 18-1 and plane bearing 18-2 and the second taper between the calvus of one taper jaw 18-7
After passing between the calvus of jaw 18-9, under precompressed steel wire rope 9 tension force effect, a described anti-work turning round compression spring 18-1
On the first taper jaw 18-7, other end acts on tapered sleeve 18-8.
Referring to Fig. 1,4 and Fig. 7, the connecting seat 18-3 of described 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 the distance apart from base 3 bottom surface for the lower surface at the middle part of described base 3 protuberance is more than described steel
The height of cord self-locking tensioning anchorage 18.
Referring to Fig. 1～7, on described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with three lifting bolts 10；
The outside of described base 3, is correspondingly provided with three by the relative position of set three lifting bolts 10 on floating back-pressure steel plate 11
Described steel wire rope self-locking tensioning anchorage 18；Three precompressed steel wire ropes 9 are distributed in cylindrical helical compression spring 4 with broken line state
Heart in the hole, and of each precompressed steel wire rope 9 is to connect to be fixed on set lifting bolt 10 on floating back-pressure steel plate 11, separately
One passed around a lifting bolt 10 as steel wire rope break-in element for relative after turn back, then this precompressed steel wire rope 9 from
The position of its set steel wire rope self-locking tensioning anchorage 18 on the corresponding base 3 in the fixing point side on floating back-pressure steel plate 11 passes through
Floating back-pressure steel plate 11, is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；On described floating back-pressure steel plate 11,
Each precompressed steel wire rope 9 is equipped with the through hole 12 through precompressed steel wire rope 9 through position, and the aperture of this through hole 12 is more than described
The diameter of precompressed steel wire rope 9；On described base 3, it is equipped with the pre- steel wire of anchoring in each precompressed steel wire rope 9 through position
The anchor hole 3-1 of rope 9.
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) elder generation is according to the default vertical initial stiffness of need and cylindrical helical compression
The characterisitic parameter of spring 4, calculates precompressed steel wire rope 9 and meets the tension force presetting vertical initial stiffness；(2) pressing Fig. 1 will be described perpendicular
Assemble to shock isolating pedestal, make the other end of each precompressed steel wire rope 9 from the of corresponding steel wire rope self-locking tensioning anchorage 18
Pass in one taper jaw 18-7, the centre bore of the second taper jaw 18-9 and hollow bolt 18-10；Then, (3) are expose
The fag end system of precompressed steel wire rope 9 is connected on traction stretching machine, and monitors precompressed using tension detecting instrument while drawing tensioning
The tension force of steel wire rope 9；Needed for described precompressed steel wire rope 9 is tensioned to default vertical initial stiffness during tension force, move forward second
Self-centering locking fixture, adjusts simultaneously and turns tensioning swivel nut 18-6 so that plane bearing 18-2 is clamped tightly at described tensioning spiral shell
Between set 18-6 and tapered sleeve 18-8, and anti-torsion compression spring 18-1 is compressed, and tension force produced by it promotes the first taper jaw
Precompressed steel wire rope 9 is clamped by 18-7 reach, and turning described hollow bolt 18-10 thereafter will be in the second taper jaw 18-9
Precompressed steel wire rope 9 presss from both sides extremely；Remove traction stretching machine, block unnecessary precompressed steel wire rope 9, you can by cylindrical helical compression spring
4 are clamped between driving pressing plate 7 and floating back-pressure steel plate 11 all the time；(4) finally by Fig. 1 and 4, laminated rubber damping bearing is pacified
It is contained in the described top driving pressing plate 7, obtain final product described three-dimensional isolation device.
Referring to Fig. 1 and Fig. 8～12, in the work progress 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 18-6 turning 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 more than or equal to described three-dimensional isolation dress
Put born erect static load lotus.
Under ideal conditions, the vertical ripple of earthquake should be unable to be occurred to building during building transmission by earthquake isolating equipment
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 described vertical initial stiffness, if this dynamic loading above pushes away base 3 along the axis of fairlead 1, drive
The reaction force of pressing plate 7 just compresses downwards cylindrical helical compression spring 4, and building is motionless with shifting on ground for base 3；If
, along the drop-down base of axis 3 of fairlead 1, precompressed steel wire rope 9 is then by the suspension ring spiral shell as steel wire rope break-in element for this dynamic loading
Nail 10 is reversely sling floating back-pressure steel plate 11, compresses cylindrical helical compression spring 4 upwards, and base 3 moves down with ground, but building
Thing is still motionless.As can be seen here, all compressible cylindrical helical compression spring when P wave makes ground that up-down vibration to occur
Produce elastic deformation and consume energy.In the same manner, when building rocks in the presence of wind shake or flatly seismic wave, no matter to it to described
The dynamic loading that three-dimensional isolation device produces is pulling force or all compressible cylindrical helical compression spring of pressure produces elastic deformation
And consume energy.
Example 2
Referring to Figure 13～17, this example has been substantially carried out some improvement following on the basis of example 1：(1) by precompressed steel wire rope 9
Increase to the six roots of sensation by three；(2) lifting bolt 10 as steel wire rope break-in element is replaced with U-shaped component 19；(3) will fix pre-
The steel wire rope self-locking tensioning anchorage 18 of compressed steel cord 9 other end increases to six；(4) described backpressure device is correspondingly changed
For：
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 of fixing 9 one, the precompressed steel wire rope of block floating back-pressure steel plate 11, six and six fixing precompressed steel wire ropes 9 are another
The steel wire rope self-locking tensioning anchorage 18 of head forms；Wherein,
Floating back-pressure steel plate 11 is located between cylindrical helical compression spring 4 and base 3；
The six U-shaped components 19 being only used as steel wire rope break-in element fix described drive around the axisymmetrical of described fairlead 1
The lower surface of described cylindrical helical compression spring 4 center in the hole is located on dynamic pressure plate 7；Referring to Figure 17, described U-shaped component 19
It is made up of round steel bending, on described driving pressing plate 7, be provided with and 19 two sides of U-shaped component in the relevant position of setting U-shaped component 19
While the circular hole matching, described U-shaped component 19 is inserted in this circular hole, and the two is welded and fixed together；
On described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with six lifting bolts 10；Described base 3
Outside, is correspondingly provided with six described steel wire ropes certainly by the relative position of set six lifting bolts 10 on floating back-pressure steel plate 11
Lock tensioning anchorage 18；Six roots of sensation precompressed steel wire rope 9 is distributed in cylindrical helical compression spring 4 center in the hole with broken line state, and often
One of a piece precompressed steel wire rope 9 is to connect to be fixed on set lifting bolt 10 on floating back-pressure steel plate 11, and other end passed around
Relative one turns back after the U-shaped component 19 as steel wire rope break-in element, then this precompressed steel wire rope 9 from it in floating back-pressure
On the corresponding base 3 in fixing point side on steel plate 11, the position of set steel wire rope self-locking tensioning anchorage 18 passes through floating back-pressure steel plate
11, it is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；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 this through hole 12 is more than described precompressed steel wire rope 9
Diameter；On described base 3, it is equipped with the anchor hole of anchoring precompressed steel wire rope 9 in each precompressed steel wire rope 9 through position
3-1.
This example other other than the above implementation is same as Example 1.
The operation principle 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 18～22, this example has been substantially carried out some improvement following 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 fixing 9 one, the precompressed steel wire rope of floating back-pressure steel plate 11, four and four fixing precompressed steel wire rope 9 other ends
Steel wire rope self-locking tensioning anchorage composition；Wherein,
Floating back-pressure steel plate 11 is located between cylindrical helical compression spring 4 and base 3；
Four fixed pulleys 20 being only used as steel wire rope break-in element fix described driving around the axisymmetrical of described fairlead 1
The lower surface of described cylindrical helical compression spring 4 center in the hole is located on pressing plate 7；Wherein, described fixed pulley 20 is hinged on
On support, this support is welded on driving pressing plate 7；
On described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with four lifting bolts 10；Described base 3
Outside, is correspondingly provided with four described steel wire ropes certainly by the relative position of set four lifting bolts 10 on floating back-pressure steel plate 11
Lock tensioning anchorage 18；Four precompressed steel wire ropes 9 are distributed in cylindrical helical compression spring 4 center in the hole with broken line state, and often
One of a piece precompressed steel wire rope 9 is to connect to be fixed on set lifting bolt 10 on floating back-pressure steel plate 11, and other end passed around
Relative one turns back after the fixed pulley 20 as steel wire rope break-in element, then this precompressed steel wire rope 9 from it in floating back-pressure
On the corresponding base 3 in fixing point side on steel plate 11, the position of set steel wire rope self-locking tensioning anchorage 18 passes through floating back-pressure steel plate
11, it is anchored on base 3 by steel wire rope self-locking tensioning anchorage 18；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 this through hole 12 is more than described precompressed steel wire rope 9
Diameter；On described base 3, it is equipped with the anchor hole of anchoring precompressed steel wire rope 9 in each precompressed steel wire rope 9 through position
3-1.
This example other other than the above implementation is same as Example 1.
The operation principle 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. a kind of three-dimensional isolation device that can adjust vertical initial stiffness, it is folded that this 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 being distributed on laminated rubber bearing surrounding；One company of being fixed on of described tensile steel wire rope
On fishplate bar, other end is fixed on lower connecting plate, and the line of upper and lower two fixing points is parallel to the axis of described laminated rubber bearing
Line；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described fairlead
Inside is coaxially provided with cylindrical helical compression spring, and the top of this cylindrical helical compression spring is provided with driving pressing plate；Described
The middle part of the lower connecting plate lower surface of laminated rubber damping bearing extends a projection into described fairlead, and this is raised and described
Pressing plate is driven to be fixedly connected；
It is characterized in that,
It is additionally provided with backpressure device, this backpressure device includes the pre- steel wire of more than three in the fairlead of described vertical earthquake isolating bearing
The steel wire rope self-locking tensioning equal with precompressed steel wire rope quantity of the rope steel wire rope break-in element equal with precompressed steel wire rope quantity
Anchorage and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between cylindrical helical compression spring and base；
Described steel wire rope break-in element is on the fixing described driving pressing plate of 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 composition, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and the middle part of this connecting seat one end is provided with axially extended cylinder
Shape boss, the internal of this boss is provided with, along axial line, the first taper jaw being made up of 3～5 claw pieces, and outer peripheral face is arranged with to be opened
Tight swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is regular hexagon；
B the second self-centering locking fixture described in) has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 claws along axis
Second taper jaw of piece composition and hollow bolt, wherein, the major part of the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon；
C the plane bearing described in) is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
Ring raceway is constituted, and wherein said ring raceway is matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described 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 described tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；Turn round compression bullet through anti-between precompressed steel wire rope is by the calvus of the first taper jaw
After passing between the calvus of the centre bore of spring and plane bearing and the second taper jaw, under the effect of precompressed steel wire rope tension,
Described anti-turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Described precompressed steel wire rope is distributed in the center in the hole of cylindrical helical compression spring with broken line state, and each precompressed
One axisymmetrical around described fairlead of steel wire rope is fixed on floating back-pressure steel plate, and other end passed around relative one
Turn back after individual steel wire rope break-in element, then from this precompressed steel wire rope, other the passing through of the fixing point on floating back-pressure steel plate is floated instead
Laminated steel is anchored on base by steel wire rope self-locking tensioning anchorage；On described floating back-pressure steel plate, in each pre- steel wire
Rope is equipped with the through hole through precompressed steel wire rope through position, and the aperture of this through hole is more than the diameter of described precompressed steel wire rope；
By precompressed steel wire tensioning to arranging tension force needed for vertical initial stiffness, make described cylindrical helical compression spring all the time
It is clamped between driving pressing plate and floating back-pressure steel plate；
Described tensile steel wire rope tensioning is provided the precompression being equal to design dead load for laminated rubber bearing.
2. a kind of three-dimensional isolation device of vertical initial stiffness that can adjust according to claim 1 is 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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| CN201610906006.4A CN106401000A (en) | 2016-10-17 | 2016-10-17 | Vertical initial rigidity adjustable three-dimensional shock insulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610906006.4A CN106401000A (en) | 2016-10-17 | 2016-10-17 | Vertical initial rigidity adjustable three-dimensional shock insulation device |
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| CN201610906006.4A Pending CN106401000A (en) | 2016-10-17 | 2016-10-17 | Vertical initial rigidity adjustable three-dimensional shock insulation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216432A (en) * | 2021-04-16 | 2021-08-06 | 哈尔滨工业大学（深圳） | Combined three-dimensional shock insulation layer |
| CN117885022A (en) * | 2024-03-18 | 2024-04-16 | 扬中市天成密封科技有限公司 | Dust-free type machine tool for piston ring machining |
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| 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 |
| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed tendon anchorage device capable of being freely regulated and controlled at high precision |
| US20140041320A1 (en) * | 2011-09-22 | 2014-02-13 | Tongji University | Seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and fabricating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| US20140041320A1 (en) * | 2011-09-22 | 2014-02-13 | Tongji University | Seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and fabricating method thereof |
| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed tendon anchorage device capable of being freely regulated and controlled at high precision |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113216432A (en) * | 2021-04-16 | 2021-08-06 | 哈尔滨工业大学（深圳） | Combined three-dimensional shock insulation layer |
| CN117885022A (en) * | 2024-03-18 | 2024-04-16 | 扬中市天成密封科技有限公司 | Dust-free type machine tool for piston ring machining |
| CN117885022B (en) * | 2024-03-18 | 2024-05-24 | 扬中市天成密封科技有限公司 | Dust-free type machine tool for piston ring machining |
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