CN205035930U - Hard and soft combination formula tensile shock isolation device - Google Patents

Hard and soft combination formula tensile shock isolation device Download PDF

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Publication number
CN205035930U
CN205035930U CN201520767156.2U CN201520767156U CN205035930U CN 205035930 U CN205035930 U CN 205035930U CN 201520767156 U CN201520767156 U CN 201520767156U CN 205035930 U CN205035930 U CN 205035930U
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China
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fixed
bearing
support
under
hard
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CN201520767156.2U
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Chinese (zh)
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许强
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许强
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Abstract

The utility model provides a hard and soft combination formula tensile shock isolation device, its isolation bearing fixes in the cavity of the body on arranging the support in, and the upper end rigid connection of the fixed body on isolation bearing's upper junction plate and the support, and under the isolation bearing connecting plate and be in the support on the support upper end rigid connection of the fixed body down in the fixed body cavity, this support down the upper end of the fixed body on by the support lower extreme contact of the fixed body support and make the support down the fixed body be in the state that hangs, the support lower extreme of the fixed body down extends to down the interior intracavity of buttress connector, this support is provided with by the elastomer of precommpression in lower extreme and buttress connector upper end formed down the cavity of the fixed body down. The utility model discloses when bearing pressure, relative vertical motion takes place for the upper and lower solid of support, does not influence isolation bearing's vertical pressurized performance, when the utility model discloses when receiving vertical tensile force, relative vertical displacement can not take place for solid upper end extrusion each other under lower extreme and the support of solid on the support to guarantee that the isolation bearing disappearance is drawn the state.

Description

A kind of hard and soft combined type tensile shock isolation device
Technical field
The utility model belongs to field of civil engineering, is specifically related to a kind of hard and soft combined type tensile shock isolation device.
Background technology
Earthquake is a kind of paroxysmal, has destructive natural calamity, causes huge infringement to the mankind.Isolation seism building base technology by arranging the neoprene bearing with plastic deformation ability and damping capacity between the superstructure and substructure (basis) of building, with the natural vibration period of this extending structure, avoid the predominant period that earthquake motion causes ground motion, reduce the input of seismic energy to superstructure, reach reduction earthquake response, alleviate the object of earthquake.
Building foundation horizontal seismic isolation technology has been widely used in various median low structure thing, and achieves good damping effect.But in executive information systems thing, due to large ratio of height to width, building can produce and significantly jolt and rock, produce larger overturning moment in foundation bottom, cause shock isolating pedestal to occur tension phenomenon.Research shows, when rubber earthquake isolation support tension, elastic stiffness only has during pressurized about 1/10, after excessive deformed in tension, occur too macrolesion although there is no in appearance, because rubber is subject to lift-off, inside can produce pore, when causing again compressing, pressurized Stiffness Drop is low to moderate about 1/2 of initial stiffness.Rubber earthquake isolation support allowable tensile stress should not be greater than 1.0MPa, in Practical Project, does not generally utilize examining tensile behavior, it can be used as safety stock.
In sum, the examining tensile behavior of horizontal seismic isolation bearing constrains the application of seismic isolation technology in high-rise building, along with expanding economy, and increasing highrise building acquisition approval and rising, on the basis of horizontal seismic isolation bearing, develop a kind of device that can bear pulling force significant.
Utility model content
The utility model provides a kind of hard and soft combined type tensile shock isolation device, and while guarantee horizontal seismic isolation effect, have again necessary vertical tensile property, meanwhile, the utility model also has certain vertical earthquake isolating function.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of hard and soft combined type tensile shock isolation device, comprise shock isolating pedestal, described shock isolating pedestal is placed in the cavity of fixed body on bearing, and the upper surface of fixed body is rigidly connected on the upper junction plate of shock isolating pedestal and bearing, and shock isolating pedestal lower connecting plate and the upper surface of fixed body under the bearing be on bearing in fixed body cavity are rigidly connected, under this bearing the upper end of fixed body supported by the lower end in contact of fixed body on bearing and under making bearing fixed body be in suspension status, under bearing, the lower end of fixed body extends to the bottom surface of lower buttress connector inner chamber, the elastic body be pre-compressed is provided with in the lower end of fixed body and the cavity of lower buttress connector upper end formation under this bearing.
Cushion rubber layer is provided with between the lower surface of fixed body and the bottom surface of lower buttress connector inner chamber under described bearing.
Described shock isolating pedestal is laminated rubber bases, lead rubber bearing or high-damp rubber support.
On described bearing, the main body of fixed body is tubular, and its upper surface is sealing, and lower surface has opening.
Described lower buttress connector main body is tubular, and its upper surface has opening, and lower surface is sealing.
The assembly of fixed body to be cross sectional shape be three sections of cylinders of I shape under described bearing.
Compared with prior art, the beneficial effects of the utility model are:
1. shock isolating pedestal not tension power effect in whole earthquake mechanism: when bearing pressure when the utility model, on bearing, under solid and bearing can there is relative vertical motion in solid, do not affect the vertical Compressive Performance of shock isolating pedestal; When the utility model is subject to vertical tension effect, on bearing, under the lower end of solid and bearing, solid upper end extrudes mutually, relative vertical displacement can not be there is, thus ensure build-in on bearing under solid and bearing in solid shock isolating pedestal there is not tension state, after solving shock isolating pedestal tension, cause the problem of vertical bearing capacity decline, stress performance instability.
2. the utility model has good vertical earthquake isolating function: device is when " flexibility " stage (state that elastic body does not compress completely) pressurized, the vertical rigidity of device is the vertical pressurized rigidity of shock isolating pedestal, during tension, vertical rigidity is elastomeric rigidity, the vertical rigidity reducing device is reached by reduction shock isolating pedestal and elastomeric vertical rigidity, realize certain vertical earthquake isolating object, now avoid because vertical rigidity is less, there is larger vertical destroy displacement in structure, pretreatment is carried out to the elastic body in the utility model, when effect is equivalent to not increase architecture quality, increase the gravity of structure, reduce the vertical displacement that structure produces.
3. under severe earthquake action, when the vertical displacement that structure occurs is greater than elastomeric total compressible amount, under bearing, solid lower end and buttress connector upper end produce rigid phase mutual effect, device realizes the conversion from " flexibility " (state that elastic body does not compress completely) to " rigidity " (elastic body is in the state of maximum compressibility) automatically, the vertical displacement of restriction shock isolating pedestal, avoiding structure to destroy because producing excessive vertical displacement, really achieving the function of coupling hardness with softness.
4. the utility model simple structure, concise production process, draw materials conveniently, tensile property is superior, and product quality is easy to control, and is convenient to marketing.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional view;
Fig. 2 is the sectional drawing of fixed body on bearing in Fig. 1;
Fig. 3 is the sectional drawing of fixed body under bearing in Fig. 1;
Fig. 4 is the sectional drawing of lower buttress connector in Fig. 1.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Refer to Fig. 1 ~ 4, a kind of hard and soft combined type tensile shock isolation device, comprises shock isolating pedestal 2, fixed body 1 on bearing, fixed body 3 under bearing, lower buttress connector 4, elastic body 5; Wherein on bearing, the main body of fixed body 1 is cylindric, and its upper surface is sealing, and lower surface has opening.The assembly of fixed body 3 to be cross sectional shapes be three sections of cylinders of I shape under bearing.And lower buttress connector 4 main body is tubular, its upper surface has opening, and lower surface is sealing.On lower buttress connector 4 and bearing, the shape of fixed body 1 is similar, and when just installing, the one side of openend is installed in opposite directions.Elastic body 5 is that the object of ring spring or other shape or spring-like character substitutes.
Described shock isolating pedestal 2 is placed in the cavity of the cylindrical shape of fixed body 1 on bearing, and the upper junction plate of shock isolating pedestal 2 welds with the upper surface of fixed body on bearing 1 or bolt is connected, and the lower connecting plate of shock isolating pedestal 2 welds with the upper surface of fixed body 3 under the bearing in the cylindrical cavity being in fixed body 1 on bearing or bolt is connected, and under making fixed body 1 on bearing, shock isolating pedestal 2, bearing, fixed body 3 three connects as one.Under this bearing the upper end of fixed body 3 and the upper beam of I shape supported (or under bearing, the upper end of fixed body 3 and the upper beam of I shape are hooked by the lower end of fixed body on bearing 1) by the lower end in contact of fixed body on bearing 1 and under making bearing fixed body 3 be in suspension status, make fixed body 1 on bearing can not produce vertical relative displacement (during pressurized with under bearing during fixed body 3 tension, because compressive strain occurs shock isolating pedestal 2, on bearing can there is vertical relative displacement with fixed body 3 under bearing in fixed body 1), but can the relative movement in occurred level direction, horizontal sliding space D (Fig. 1) should not be less than the maximum displacement value that shock isolating pedestal occurs under rarely occurred earthquake, the diameter of the desirable 0.55 times of laminated rubber damping bearing 2 of this maximum displacement.Under bearing, the lower end (or underbeam of I shape) of fixed body 3 extends to the bottom surface of lower buttress connector 4 inner chamber, the elastic body 5 be pre-compressed is provided with in the lower end of fixed body 3 and the cavity of lower buttress connector 4 upper end formation under this bearing, during tension, under bearing, fixed body 3 and lower buttress connector 4 can produce vertical relative displacement, but can not occurred level relative movement.
When described precompressed elastic body 5 carries out autofrettage, prestress value is the gravity load that 0.2 ~ 1 times of shock isolating pedestal 2 bears.The generable total compression amount △ of precompressed elastic body 5 gets the distance of 0.002 times of ground intercolumniation.The vertical rigidity value of precompressed elastic body 5 is the vertical rigidity of 0.2 ~ 1 times of shock isolating pedestal 2.
Be provided with the rubber layer of 3 ~ 10mm thickness under described bearing between the lower surface of fixed body 3 and the bottom surface of lower buttress connector 4 inner chamber, play the effect of buffering.
Described shock isolating pedestal 2 is laminated rubber bases, lead rubber bearing or high-damp rubber support.Be laminated rubber bases as preferred shock isolating pedestal, be mainly used in the geological process in level of isolation direction, protection superstructure.As needs, its vertical rigidity specifically can be determined according to its bearing load size and vertical earthquake isolating effect.
Fixed body 1 on above-mentioned bearing, fixed body 3 under bearing, the size of the power that lower buttress connector 4 relative dimensions is produced by the shock isolating pedestal type used during specific design and rarely occurred earthquake undersetting and overturning moment is determined.
Field installation process of the present utility model: the utility model is placed on the lower buttress of support carriers, its lower buttress connector 4 is fixedly connected with bearing embedded board bolt in lower buttress, on bearing, fixed body 1 is fixedly connected with embedded board bolt on bearing, then above embedded board is bed die, formwork is carried out to the above structure of bearing, and diagonal brace is done to whole system fix, carry out the colligation of upper component reinforcing bar subsequently and concretely to build.On bearing, under buttress, this device center, bearing, the kernel of section on buttress and basis should overlap.

Claims (6)

1. a hard and soft combined type tensile shock isolation device, comprise shock isolating pedestal, it is characterized in that: described shock isolating pedestal (2) is placed in the cavity of fixed body on bearing (1), and the upper surface of fixed body (1) is rigidly connected on the upper junction plate of shock isolating pedestal (2) and bearing, and shock isolating pedestal (2) lower connecting plate and the upper surface of fixed body (3) under the bearing be in fixed body on bearing (1) cavity are rigidly connected, under this bearing the upper end of fixed body (3) supported by the lower end in contact of fixed body on bearing (1) and under making bearing fixed body (3) be in suspension status, under bearing, the lower end of fixed body (3) extends to the bottom surface of lower buttress connector (4) inner chamber, the elastic body (5) be pre-compressed is provided with in the lower end of fixed body (3) and the cavity of lower buttress connector (4) upper end formation under this bearing.
2. hard and soft combined type tensile shock isolation device according to claim 1, is characterized in that: be provided with cushion rubber layer between the lower surface of fixed body (3) and the bottom surface of lower buttress connector (4) inner chamber under described bearing.
3. hard and soft combined type tensile shock isolation device according to claim 1, is characterized in that: described shock isolating pedestal (2) is laminated rubber bases, lead rubber bearing or high-damp rubber support.
4. hard and soft combined type tensile shock isolation device according to claim 1, is characterized in that: on described bearing, the main body of fixed body (1) is tubular, and its upper surface is sealing, and lower surface has opening.
5. hard and soft combined type tensile shock isolation device according to claim 1, is characterized in that: described lower buttress connector (4) main body is tubular, and its upper surface has opening, and lower surface is sealing.
6. hard and soft combined type tensile shock isolation device according to claim 1, is characterized in that: the assembly of fixed body (3) to be cross sectional shape be three sections of cylinders of I shape under described bearing.
CN201520767156.2U 2015-09-30 2015-09-30 Hard and soft combination formula tensile shock isolation device Withdrawn - After Issue CN205035930U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520767156.2U CN205035930U (en) 2015-09-30 2015-09-30 Hard and soft combination formula tensile shock isolation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520767156.2U CN205035930U (en) 2015-09-30 2015-09-30 Hard and soft combination formula tensile shock isolation device

Publications (1)

Publication Number Publication Date
CN205035930U true CN205035930U (en) 2016-02-17

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CN201520767156.2U Withdrawn - After Issue CN205035930U (en) 2015-09-30 2015-09-30 Hard and soft combination formula tensile shock isolation device

Country Status (1)

Country Link
CN (1) CN205035930U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105220789A (en) * 2015-09-30 2016-01-06 许强 A kind of hard and soft combined type tensile shock isolation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105220789A (en) * 2015-09-30 2016-01-06 许强 A kind of hard and soft combined type tensile shock isolation device
CN105220789B (en) * 2015-09-30 2017-11-28 许强 A kind of hard and soft combined type tensile shock isolation device

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Granted publication date: 20160217

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