CN106381931A - Three-dimensional base isolation support capable of presetting vertical early rigidity - Google Patents
Three-dimensional base isolation support capable of presetting vertical early rigidity Download PDFInfo
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- CN106381931A CN106381931A CN201610906354.1A CN201610906354A CN106381931A CN 106381931 A CN106381931 A CN 106381931A CN 201610906354 A CN201610906354 A CN 201610906354A CN 106381931 A CN106381931 A CN 106381931A
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- cable wire
- floating
- hole
- isolation support
- spring
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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
-
- 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
Abstract
The invention discloses a three-dimensional base isolation support capable of presetting vertical early rigidity. The three-dimensional base isolation support comprises a laminate rubber base isolation support and a vertical base isolation support connected in series up and down and is characterized in that a back pressure device is also arranged in a guide sleeve of the vertical base isolation support, wherein the back pressure device comprises two groups of at least three prepressed steel ropes and two floating pressure plates; the two groups of prepressed steel ropes are distributed between a composite spring and the guide sleeve in a linear state respectively; one ends of one group of prepressed steel ropes are fixed on the floating pressure plate adjacent to a drive pressure plate respectively, and the other ends pass through the floating pressure plate adjacent to a base to be fixed on the base respectively; one ends of the other group of prepressed steel ropes are fixed on the floating pressure plate adjacent to the base respectively, and the other ends pass through the floating pressure plate adjacent to the drive pressure plate to be fixed on the drive pressure plate respectively; and the two groups of prepressed steel ropes are tensioned so that the composite spring is always clamped between the two floating pressure plates.
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 early stage rigidity, 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 early stage rigidity；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 the three-dimensional shock isolation support providing a kind of energy to preset vertical early stage rigidity, should
Three-dimensional shock isolation support not only both compressible passive energy dissipation, and stretchable passive energy dissipation, but also maintain in vertical earthquake isolating bearing
Effective active length of spring.
The present invention solve above-mentioned technical problem technical scheme be：
A kind of energy presets the three-dimensional shock isolation support of vertical early stage rigidity, and this three-dimensional shock isolation support 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 tension cable wires being distributed on laminated rubber bearing surrounding；One company of being fixed on of described tension cable wire
On fishplate bar, other end is fixed on lower connecting plate, and the line of upper and lower two fixing points is parallel to the axis of described laminated rubber bearing
Line；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described lead
It is coaxially provided with spring to set is internal, the top of this spring is provided with driving pressing plate；The lower connection of described laminated rubber damping bearing
The middle part of plate forms a projection to described fairlead sunken inside, and this raised lower end is fixedly connected with described driving pressing plate；
It is characterized in that,
Described spring is complex spring (full name is rubber-metal spiral complex spring), and the external diameter of this complex spring is less than
The internal diameter of fairlead, forms therebetween an annular space；
It is additionally provided with backpressure device, this backpressure device includes quantity and is at least respectively in the fairlead of described vertical earthquake isolating bearing
Two groups of precompressed cable wires of three and two pieces of floating platens, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and complex spring, and another piece is located at base
And complex spring between；
Two groups of described precompressed cable wires are symmetrically distributed in described annular space rotating around the axis of fairlead with linear state
Interior, and, one of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, other end be each passed through with
The adjacent floating platen of base is fixed on base；One of another group of precompressed cable wire is separately fixed at the floating adjacent with base
On pressing plate, other end is each passed through and is fixed on driving pressing plate with the floating platen driving pressing plate adjacent；
Being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire on described floating platen,
The aperture of this through hole is more than the diameter of worn precompressed cable wire；
It is respectively adopted dynamic cooperation between described fairlead and two pieces of floating platens；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens default vertical equal to being compressed to complex spring
The length of early stage rigidity；
By described tension cable wire tensioning, provide the precompression being equal to design dead load for laminated rubber bearing.
In such scheme, described tension cable wire and precompressed cable wire can be steel wire rope or prestressing force steel hinge line.
The operation principle of above-mentioned three-dimensional shock isolation support 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 combined spring；When dynamic loading edge
When the axis of fairlead acts on opposite to each other, pulling force is delivered to driving pressing plate via tension cable wire, drives and moves on pressing plate, and two groups of precompressed
Cable wire then distinguishes the compression combined spring of two pieces of floating platen relative movements of tractive.As can be seen here, no matter axial dynamic loading goes back relatively
To act on three-dimensional shock isolation support opposite to each other, can compression combined spring so as to occur elastic deformation and consume energy.
From above-mentioned operation principle, the hole of the precompressed cable wire described in the course of work and the through hole on described floating platen
Wall can not produce friction, otherwise interferes with moving up and down of floating platen, and therefore described through-hole diameter is than described precompressed cable wire
Diameter how many greatly, should be not disturb and to affect moving up and down of floating platen to be advisable.
Energy of the present invention presets the three-dimensional shock isolation support of vertical early stage rigidity, and wherein said precompressed cable wire two can
Using conventional method anchoring, may also be employed similar to lifting bolt or fixation is connect by the U-shaped component system of bar bending, therefore,
If two of described precompressed cable wire is all connect fixing dead using anchoring or lifting bolt system, then reach default vertically early
The purpose of phase rigidity, is necessary for precalculating and strictly controlling the default tension force of length ability of described precompressed cable wire, Jin Erda
To the purpose presetting vertical early stage rigidity.But, in actual production debugging process, be using the described precompressed rope length of control
Method reach the purpose of default vertical early stage rigidity and then there are following two hang-ups, one is anchoring or is that the process connecing can produce
Error, even if two are to control anchoring or are the produced error of the process connecing, but precompressed cable wire is cutting off, also can in placement process
Lead to the change of its characterisitic parameter.In order to solve above-mentioned technical barrier, an improvement project of the present invention is：
The other end of two groups of precompressed cable wires of described vertical earthquake isolating bearing is separately fixed at driving using cable wire self-locking anchorage
On pressing plate and base；Described cable wire self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on driving pressing plate or base；Described installing hole is by one section of taper hole and one section of screwed hole group
Become, wherein said taper hole is located at the side near floating platen, and tip points to floating platen, described screwed hole is located remotely from floating
The side of dynamic pressure plate；
Described jaw is to match cone with described taper hole, and is made up of 3～5 lobes, and it is provided with folder along axis in vivo
Hold the clamping hole of precompressed cable wire；
Described check bolt is matched with described screwed hole, and is provided with diameter greater than described precompressed cable wire along axis in vivo
The circular hole of diameter；
Described jaw is arranged in described taper hole, and check bolt is arranged on described screw thread in the hole.
From above-mentioned improvement project, one of described two groups of precompressed cable wires is separately fixed at described floating platen
On, other end is passed by the clamping hole of described cable wire self-locking anchorage and circular hole respectively, so can be the fag end system exposed
It is connected on traction stretching machine, the decrement (as tensioning distance) of monitoring complex spring while drawing tensioning, to determine
The distance between two pieces of floating platens；When the distance between two pieces of floating platens are equal to, complex spring is compressed to satisfaction vertically early
During the length of phase rigidity, turn check bolt and described jaw can be promoted to clamp and locked precompressed cable wire, even if vibrated
In journey two groups of precompressed cable wires repeatedly tensioning, loose in the case of also will not loosen.
For preventing described complex spring two from sliding on described floating platen, another improvement project of the present invention is：
One locating ring is respectively equipped with the relative surface of described two pieces of floating platens, two of described complex spring is embedded in described respectively
In locating ring.
The three-dimensional shock isolation support that the energy of the present invention presets vertical early stage rigidity 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 early stage rigidity, 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 two groups of precompressed cable wires can change the vertical early stage rigidity of whole device, external force gram
Shock isolating pedestal cannot be made before taking this vertical early stage rigidity to produce vertical deformation, effectively inhibit building in small earthquake and weak
Produce in the presence of wind shake and rock, the shockproof grade of wind resistance of predeterminable building, significantly reduce the shockproof cost of wind resistance；
(4), during presetting early stage rigidity, effective active length of described complex spring is constant, will not change complex spring
Original characterisitic parameter.
(5) 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 shock isolation support of the present invention, and wherein, Fig. 1 is
Front view (section view), Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 1, and Fig. 4 is C-C sectional view, and Fig. 5 is Fig. 1
The enlarged drawing of middle local I, Fig. 6 is the enlarged drawing of local II in Fig. 1, and Fig. 7 is the enlarged drawing of local III in Fig. 2.
Fig. 8～10 are the structural representation of second specific embodiment of three-dimensional shock isolation support of the present invention, wherein, figure
8 is front view (section view), and Fig. 9 is the D-D sectional view of Fig. 8, and Figure 10 is the E-E sectional view of Fig. 8.
Figure 11～13 are the structural representation of cable wire self-locking anchorage in the illustrated embodiment of Fig. 8～10, and wherein, Figure 11 is main view
Figure (sectional view, precompressed cable wire is illustrated in figure double dot dash line), Figure 12 is top view, and Figure 13 is the F-F sectional view of Figure 11.
Figure 14～16 are the structural representation of the 3rd specific embodiment of three-dimensional shock isolation support of the present invention, wherein,
Figure 14 is front view (section view), and Figure 15 is the G-G sectional view of Figure 14, and Figure 16 is the H-H sectional view of Figure 14.
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 14, lower connecting plate 15, be clamped on
Laminated rubber bearing 17 between lower connecting plate and six roots of sensation tension cable wire 16；Wherein, described upper junction plate 14 and lower connecting plate 15
All in the form of annular discs, the edge of upper junction plate 14 is provided with installing hole 13；The main body of described laminated rubber bearing 17 is by one layer of rubber 17-1
After being superimposed with one layer of steel plate 17-2, molding sulfuration is constituted, and its periphery self-assembling formation rubber is protected during molding sulfuration
Sheath 17-3.The upper and lower ends face of described laminated rubber bearing 17 main body is equipped with and extremely vulcanizes the connection steel plate linking together
17-4, described two pieces of connection steel plate 17-4 are fixed together by screw with upper junction plate 14 and lower connecting plate 15 respectively.
Described six roots of sensation tension cable wire 16 is symmetrically distributed in its surrounding around the axis of laminated rubber bearing 17, each tension cable wire 16
One is fixed on upper junction plate 14 by lifting bolt 12, and other end is fixed on lower connecting plate 15 by lifting bolt 12.Each
Root tension cable wire 16 tensioning, makes the tension force sum of six roots of sensation tension cable wire 16 be equal to the vertical design of three-dimensional shock isolation support described in this example
After dead load, and tensioning, each tension cable wire 16 is each parallel to the axis of laminated rubber bearing 17.
Referring to Fig. 1～7, described 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 is to the annular envelope being provided with spacing and guide effect
Lid 2.Described base 3 is discoid, and the edge of surrounding is provided with installing hole 13, and described fairlead 1 lower end is fixed by screw
The middle part on surface thereon.
Referring to Fig. 1～3, described complex spring 4 by cylindrical helical compression spring 4-1 and is wrapped in cylindrical helical compression
Rubber spring 4-2 composite sulfuration outside spring 4-1 forms.Described complex spring 4 is coaxially located in fairlead 1, this compound bullet
The upper end of spring 4 is provided with the driving pressing plate 5 moving cooperation with described fairlead 1.The external diameter of described complex spring 4 is less than fairlead 1
Internal diameter, between forms an annular space.The middle part of described lower connecting plate 15 forms a tea to described fairlead 1 sunken inside
The raised 15-1 of cup-shaped, the lower end of this raised 15-1 is fixed together by screw with described driving pressing plate 5.
Referring to Fig. 1, it is provided between lower connecting plate 15 and annular capping 2 and between driving pressing plate 5 and annular capping 2 and is more than
The gap of amplitude.
Referring to Fig. 1～7, in described fairlead 1, it is provided with backpressure device, this backpressure device includes two groups of precompressed cable wires and two
Block floating platen；Wherein, two groups of described precompressed cable wires are first group of precompressed cable wire 8 being made up of three precompressed cable wires and by five
Second group of precompressed cable wire 9 of root precompressed cable wire composition；Two pieces of described floating platens are to be located at described driving pressing plate 5 and compound bullet
The first floating platen 6 between spring 4 and the second floating platen 7 being located between base 3 and complex spring 4, this two pieces pressures of floating
Plate moves cooperation with the inwall of fairlead 1 respectively；
Referring to Fig. 1～7, described two groups of precompressed cable wires are distributed in described respectively with linear state around fairlead 1 axisymmetrical
In annular space, each precompressed cable wire is each parallel to fairlead 1 axis, and first group of precompressed cable wire 8 is away from fairlead axis
Distance distance away from fairlead axis equal to second group of precompressed cable wire 9；Wherein, the following difference of described first group of precompressed cable wire 8
It is fixed on the second floating platen 7 by lifting bolt 12, top is each passed through the first floating platen 6 and is fixed on by lifting bolt 12
On described driving pressing plate 5；The top of described second group of precompressed cable wire 9 is fixed on the first floating platen 6 by lifting bolt 12 respectively
On, following passes through the second floating platen 7 fixing on the base 3 by lifting bolt 12；At each on described first floating platen 6
The position that first group of precompressed cable wire 8 passes through is provided with the first through hole 10 passed through for it, and the aperture of this first through hole 10 is more than described
The diameter of first group of precompressed cable wire 8；The position passing through in each second group of precompressed cable wire 9 on described second floating platen 7 sets
There is the second through hole 11 passing through for it, the aperture of this second through hole 11 is more than the diameter of described second group of precompressed cable wire 9；Described
The method that two of tension cable wire and precompressed cable wire is fixed in respective members by lifting bolt is：Lifting bolt 12 is fixed on
On corresponding component, then one of precompressed cable wire is on the suspension ring be connected on lifting bolt, and (in figure is not drawn by rope cramp
Go out) fixing dead.
Described tension cable wire in this example and precompressed cable wire can be steel wire rope or prestressing force steel hinge line, tool
When body is implemented, can voluntarily choose according to actual needs.
Referring to Fig. 1～3 and Fig. 6, described first floating platen 6 surface relative with the second floating platen 7 is equipped with internal diameter
The locating ring 18 matching with the external diameter of complex spring 4, described complex spring 4 two is embedded in the first floating platen 6 and respectively
In locating ring 18 on two floating platens 7.
Referring to Fig. 1～3, in order to realize the purpose of predeterminable vertical early stage rigidity, above-mentioned three-dimensional shock isolation support installation method
As follows：(1) first complex spring 4 decrement is determined according to the coefficient of elasticity needing default vertical early stage rigidity and complex spring 4, enter
And calculate the length that each precompressed cable wire 9 meets vertical early stage rigidity requirement；(2) Fig. 1～3 are pressed by complex spring 4, back-pressure
Device and driving pressing plate 5 connect, and then repeatedly adjusting makes the physical length of each precompressed cable wire equal with computational length simultaneously
Fixing dead with common rope cramp (in figure there is not display), complex spring 4 is clamped in the first floating platen 6 all the time and floats with second
Between dynamic pressure plate 7；(3) part assembling step (2) is put in fairlead 1, and is directed to cover 1 and is fixed on one with base 3
Rise, then load onto the lower connecting plate 15 of annular capping 2 and laminated rubber damping bearing successively；(4) finally press Fig. 1 and 4 by lamination
The miscellaneous part of rubber earthquake isolation support is arranged on the top of described lower connecting plate 15, obtains final product described three-dimensional shock isolation support.
When presetting vertical early stage rigidity, the tension force sum of two groups of precompressed cable wires need to be more than or equal to described three-dimensional shock isolation support institute
The erect static load lotus born.
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 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 described vertical early stage rigidity, if this dynamic loading above pushes away base 3 along the axis of fairlead 1, drive
The reaction force of pressing plate 5 just compresses downwards complex spring 4, and building is motionless with shifting on ground for base 3；If this dynamic loading edge
The drop-down base of axis 3 of fairlead 1, described two groups of precompressed cable wires compression combined bullet of two pieces of floating platen relative movements of tractive respectively
Spring 4, and base 3 then moves down with ground away from driving pressing plate 5, now building is still motionless.As can be seen here, when P wave makes
Ground occurs all compressible complex spring during up-down vibration to produce elastic deformation and consume energy.In the same manner, building is in wind shake or level
When rocking in the presence of seismic wave, the dynamic loading no matter it being produced to described three-dimensional shock isolation support is pulling force or pressure
Compression combined spring produces elastic deformation and consumes energy.
Example 2
This example and example 1 have following difference：
Referring to Fig. 8～10, described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 are formed by three precompressed cable wires.
Referring to Fig. 8～10, the following of the described top of first group of precompressed cable wire 8 and second group of precompressed cable wire 9 is adopted respectively
It is fixed on described driving pressing plate 5 and base 3 with the lifting bolt in cable wire self-locking anchorage 19 alternative 1；Need the bottom of in this example
The middle part of seat 3 thickens and protuberance forms inverted washbowl shape, in order to install steel wire rope self-locking anchorage 19 upwards.
Referring to Figure 11～13, and combine Fig. 7, described cable wire self-locking anchorage 19 is by the installation being arranged on installing plate 19-1
Hole, jaw 19-2 and check bolt 19-4 are constituted, and wherein, described installing plate 19-1 is and drives pressing plate 5 or base 3.Described
The straight line that the axis of installing hole is located with corresponding precompressed cable wire is conllinear；Described installing hole is by one section of taper hole and one section of screwed hole
Composition, wherein said taper hole is located at the side near floating platen, and tip points to institute's floating platen, and screwed hole is located remotely from floating
Dynamic pressure plate side.Described jaw 19-2 is to match cone with described taper hole, and is made up of 3 lobes, and it sets along axis in vivo
There is clamping hole 19-3 clamping corresponding precompressed cable wire.Described check bolt 19-4 and described screwed hole match, and internal edge
Axis is provided with the circular hole 19-5 with diameter greater than corresponding precompressed rope diameter.Described jaw 19-2 is arranged in described taper hole, prevents
Loose bolt 19-4 is arranged on described screw thread in the hole；The other end of corresponding precompressed cable wire is clamped in described clamping hole 19-3
Interior, and end passes from the circular hole 19-5 of corresponding check bolt 19-4.
By the scheme of this example, the other parts in addition to annular capping 2 in described vertical earthquake isolating bearing are assembled, dew
The first group of precompressed cable wire 8 going out and the head system of second group of precompressed cable wire 9 are connected on traction stretching machine, while drawing tensioning
The decrement (as tensioning distance) of monitoring complex spring 4, to determine the distance between two pieces of floating platens；When two pieces are floated
The distance between pressing plate is equal to when complex spring 4 is compressed to the length meeting vertical early stage rigidity, turns check bolt 19-4
Described jaw 19-2 can be promoted to clamp and locked precompressed cable wire, thus complex spring 4 is clamped in the first floating pressure all the time
Between plate 6 and the second floating platen 7；Hereafter, load onto the lower connecting plate 15 of annular capping and laminated rubber damping bearing successively；?
Afterwards the other parts of laminated rubber damping bearing are assembled the three-dimensional shock isolation support obtaining final product described in this example.
This example is above-mentioned same as Example 1 with implementation.
Example 3
Referring to Figure 14～16, this example is described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 with the difference of example 2
Formed by five precompressed cable wires.
This example other embodiment other than the above is same as Example 2.
Claims (4)
1. a kind of energy presets the three-dimensional shock isolation support of vertical early stage rigidity, and it is folded that this three-dimensional shock isolation support 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 tension cable wires being distributed on laminated rubber bearing surrounding；One of described tension cable wire is fixed on upper junction plate
On, other end is fixed on lower connecting plate, and the line of upper and lower two fixing points is parallel to the axis of described laminated rubber bearing；
Described vertical earthquake isolating bearing includes base, and the upper surface of this base is provided with upwardly extending fairlead；Described fairlead
Inside is coaxially provided with spring, and the top of this spring is provided with driving pressing plate；The lower connecting plate of described laminated rubber damping bearing
Middle part forms a projection to described fairlead sunken inside, and this raised lower end is fixedly connected with described driving pressing plate；
It is characterized in that,
Described spring is complex spring, and the external diameter of this complex spring is less than the internal diameter of fairlead, forms therebetween an annular
Space；
It is additionally provided with backpressure device, this backpressure device includes quantity at least three respectively in the fairlead of described vertical earthquake isolating bearing
Two groups of precompressed cable wires and two pieces of floating platens, wherein,
Two pieces of described floating platens, one piece is located between described driving pressing plate and complex spring, and another piece is located at base and answers
Close between spring；
Two groups of described precompressed cable wires are symmetrically distributed in described annular space with linear state rotating around the axis of fairlead,
And, one of one group of precompressed cable wire is separately fixed on the floating platen adjacent with driving pressing plate, and other end is each passed through and bottom
The adjacent floating platen of seat is fixed on base；One of another group of precompressed cable wire is separately fixed at the floating pressure adjacent with base
On plate, other end is each passed through and is fixed on driving pressing plate with the floating platen driving pressing plate adjacent；
It is being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire, this leads on described floating platen
The aperture in hole is more than the diameter of worn precompressed cable wire；
It is respectively adopted dynamic cooperation between described fairlead and two pieces of floating platens；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens be equal to and complex spring are compressed to default vertical early stage
The length of rigidity；
By described tension cable wire tensioning, provide the precompression being equal to design dead load for laminated rubber bearing.
2. a kind of energy according to claim 1 presets the three-dimensional shock isolation support of vertical early stage rigidity it is characterised in that described
Tension cable wire and precompressed cable wire be steel wire rope or prestressing force steel hinge line.
3. a kind of energy according to claim 1 and 2 preset vertical early stage rigidity three-dimensional shock isolation support it is characterised in that
The other end of two groups of precompressed cable wires of described vertical earthquake isolating bearing is separately fixed at driving pressing plate and bottom using cable wire self-locking anchorage
On seat；Described cable wire self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on driving pressing plate or base；Described installing hole is made up of one section of taper hole and one section of screwed hole,
Wherein said taper hole is located at the side near floating platen, and tip points to floating platen, and described screwed hole is located remotely from floating
The side of pressing plate；
Described jaw is to match cone with described taper hole, and is made up of 3～5 lobes, and it is pre- that it is provided with clamping along axis in vivo
The clamping hole of compressed steel rope；
Described check bolt is matched with described screwed hole, and is provided with diameter greater than described precompressed rope diameter along axis in vivo
Circular hole；
Described jaw is arranged in described taper hole, and check bolt is arranged on described screw thread in the hole.
4. a kind of energy according to claim 3 presets the three-dimensional shock isolation support of vertical early stage rigidity it is characterised in that described
One locating ring is respectively equipped with the relative surface of two pieces of floating platens, two of described complex spring is embedded in described positioning respectively
In ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906354.1A CN106381931A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional base isolation support capable of presetting vertical early rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906354.1A CN106381931A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional base isolation support capable of presetting vertical early rigidity |
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| CN106381931A true CN106381931A (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906354.1A Pending CN106381931A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional base isolation support capable of presetting vertical early rigidity |
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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 |
| JPH0389039A (en) * | 1989-08-31 | 1991-04-15 | Sanwa Tekki Corp | Capstan type damping device |
| CN2837412Y (en) * | 2005-06-09 | 2006-11-15 | 上海环星减振器有限公司 | Displacement-compensation vibration-isolation buffer |
| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN201460241U (en) * | 2009-07-09 | 2010-05-12 | 北京公科固桥技术有限公司 | Prestress high-strength steel mesh anchorage |
-
2016
- 2016-10-17 CN CN201610906354.1A patent/CN106381931A/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 |
| JPH0389039A (en) * | 1989-08-31 | 1991-04-15 | Sanwa Tekki Corp | Capstan type damping device |
| CN2837412Y (en) * | 2005-06-09 | 2006-11-15 | 上海环星减振器有限公司 | Displacement-compensation vibration-isolation buffer |
| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN201460241U (en) * | 2009-07-09 | 2010-05-12 | 北京公科固桥技术有限公司 | Prestress high-strength steel mesh anchorage |
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