Many level damping classification surrender metal dampers
Technical field
The utility model belongs to the energy-dissipating and shock-absorbing field of building structure, is related to a kind of damping classification surrender damper.
Background technology
Energy-dissipating and shock-absorbing technology is the widely used anti-seismic technology in our times various countries, has at home and abroad been obtained commonly used.
Polytype damper is developed at present, for example Effects of Viscous Fluid Damper, viscoelastic damper, frcition damper and magnetorheological
Damper etc., wherein metal damper are relatively low because of its manufacturing cost, solid durable, easy construction, safeguard and replacement expense is relatively low,
It is most widely used in engineering structure field of shock absorption at present.
The plasticity hysteresis deformation dissipation Seismic input structural energy that metal damper is produced when being surrendered using metal material, energy
Enough dynamic respons for effectively mitigating structure.But current existing metal damper, major part is middle shake surrender power consumption, is so then led
Cause surrender bearing power increase of the damper in big shake limited, damper can not play bigger power consumption and make in big shake
With.Some metal damper is that, when big shake is subjected to, metal damper just occurs surrender power consumption, and typically locates during middle shake
In elastic stage, can't consume energy, such damper cannot play a part of dissipation seismic energy in middle shake.In addition,
More metal dampers are in elastic stage in small shake, can not play power consumption effect.
Therefore, develop a kind of classification surrender type metal damper for different fortifications it is significant, i.e., it is small shake or
The partial component surrender of metal damper during middle shake, the classification surrender type damping of all components surrender of metal damper during big shake
Device.
Utility model content
To overcome the defect existing for prior art, a kind of many level damping classification surrender metal dampers are now provided, with
Reach the good damping effect that damper is classified surrender under different fortifications.
To achieve the above object, solution of the present utility model is:A kind of many level damping classification surrender metals are provided
Damper, many level damping classification surrender metal dampers include coaxial inside and outside at least two ring dampers being arranged,
There is interval between the two neighboring ring damper and connected partially over connection backing plate, two ring dampers
For being connected with building structure;When flexural deformation, the relative ring damper ratio in inner ring is relative to be in outer ring
The ring damper preferential yield.
Preferably, each described ring damper includes the segmental arc at two ends and is connected between segmental arc described in two ends
Interlude, the interlude is provided with expansion connecting plate, and the connection backing plate is clamped and connected in inside and outside two annular dampers
Between adjacent two pieces of expansion connecting plates of device.
Preferably, the segmental arc smoothly transits with the link position of the interlude, to prevent stress concentration.
Preferably, every piece of described expansion offer screw, the expansion connecting plate and the connection backing plate spiral shell on connecting plate
Tether and connect.
Preferably, many level damping classification surrender metal dampers are used to be arranged at the coupling beam of Coupled Shear Wall simultaneously
The non-compliant section of the coupling beam is connected to by high-strength bolt, the non-compliant section is embedded in the Coupled Shear Wall in advance.
Preferably, the ring damper is made up of metal material, including Low Yield Point Steel or Q235 steel, inside and outside two institutes
State ring damper to be made up of same material or different materials, inside and outside two ring dampers have different surrenders respectively
Displacement.
Preferably, by finite element modelling, analysis meter calculates the inside and outside ring damper when displacement is designed most respectively
Big lateral deformation amount, the thickness of the connection backing plate is more than the maximum lateral deformation amount;In the design process of damper, root
Different target displacement demand according to structure under different fortification earthquakes, damping is calculated by the displacement of targets demand of structure
Relative deformation of the device under different fortifications, then determines the chi of inner ring and outer rings damper by finite element modelling and experiment
It is very little.
Preferably, between the Coupled Shear Wall or coupling beam top has floor, and the design displacement is less than described
Vertical clearance between many level dampings classification surrender metal dampers and the floor from.
Preferably, the quantity of the ring damper is to lead between three, and the interlude of the adjacent ring damper
Connection backing plate is crossed to be connected for the surrender power consumption one by one under three different earthquake magnitudes.
Preferably, many level damping classification surrender metal damper branch are located at the interlayer of frame structure and then are classified and bend
, can be specifically supported in metal damper in frame structure by wall by clothes power consumption.
Preferably, the ring damper is formed by the cutting of block of metal plate or polylith metal plate weld is spliced.
Due to using above-mentioned technical proposal, the beneficial effect of many level damping classification surrender metal dampers of the utility model
Including:
1) damper is classified surrender under different fortifications, the seismic energy of the varying strength that can dissipate to greatest extent
Amount, significantly mitigates the dynamic respons of structure, and this is great advantage of the present utility model.
2) deformability of ring damper of the present utility model is strong, i.e., the inner ring of preferential yield when small shake or middle shake,
Still will not be destroyed during big shake, can continue to effectively play power consumption effect, this is of the present utility model one big advantage.
3) clearly, low cost, it is easy to process, easy construction, energy consumption effect significantly, and is easy to the utility model Seismic mechanism
Dismounting and change after shake.
4) the utility model can be advantageously mounted at the interlayer of coupling beam span centre position or framework, in normal operating condition
Under, its integral rigidity that can improve structure;In earthquake, the earthquake that can be directed to varying strength plays classification surrender power consumption
Effect, effectively mitigates the dynamic respons of structure, with wide future in engineering applications.
Brief description of the drawings
Fig. 1 is many level damping classification surrender metal damper schematic three dimensional views of the utility model first embodiment;
Fig. 2 is the positive structure schematic of many level damping classification surrender metal dampers;
Fig. 3 is the side structure schematic diagram of corresponding diagram 2;
Fig. 4 is the overlooking the structure diagram of corresponding diagram 3;
Fig. 5 is the plastic strain cloud reference of many level dampings classification surrender metal damper under the middle shake of ABAQUS simulations
Figure;
Fig. 6 is the plastic strain cloud reference of many level dampings classification surrender metal damper under the big shake of ABAQUS simulations
Figure;
Fig. 7 is the hysteresis loop of many level dampings classification surrender metal damper of ABAQUS simulations with reference to figure;
Fig. 8 is the overall cross-sectional view under the application implementation state of corresponding diagram 1.
Wherein, label in figure:
1- outer shroud dampers;2- inner ring dampers;3- connection backing plates;4- coupling beams non-compliant section;5- shear wall wall limbs;6- buildings
Plate;7- high-strength bolts;98- screws;99- expands connecting plate.
Specific embodiment
The utility model is further illustrated below in conjunction with accompanying drawing illustrated embodiment.
Embodiment one:
With reference to shown in Fig. 1 and Fig. 8, the utility model provides a kind of many level damping classification surrender metal dampers, it
It is arranged in building structure, in the present embodiment using the non-compliant of the coupling beam of Coupled Shear Wall 5 section 4 for replacing part coupling beam as building
The applicating example of building structure, it includes two ring dampers set with exterior and interior axle sleeves, and two described ring dampers one are big
One is small, and less inner ring damper 2 is enclosed within the inside of larger outer shroud damper 1, two ring damper left and right sides it is flat
Be provided with connection backing plate 3 point between face, described two ring dampers directly with built-in fitting (i.e. non-compliant section 4) phase of coupling beam
Connection.
Specifically, with reference to shown in Fig. 2 to Fig. 4, each described ring damper includes the segmental arc at two ends and is connected to
Interlude between segmental arc described in two ends, the interlude be provided with expansion connecting plate 99, the connection backing plate 3 be clamped and connected in
Between adjacent two pieces of expansion connecting plates 99 of inside and outside two ring dampers.Every piece of described expansion opens on connecting plate 99
Some screws 98 are provided with, the expansion connecting plate 99 is connected with the bolt 7 of the connection backing plate 3, many level damping classifications are bent
Take the non-compliant section 4 that metal damper coordinates high-strength bolt to be connected to the coupling beam by the connection backing plate 3, the non-compliant
Section 4 is embedded in the Coupled Shear Wall 5 in advance.
Preferably, the ring damper is formed by the cutting of block of metal plate or polylith metal plate weld is spliced.Institute
State segmental arc to be smoothly transitted with the link position of the interlude, to prevent stress concentration.Two described annular dampers
Device is made of Q235 steel or Low Yield Point Steel, and inside and outside two ring dampers are made up of same material or different materials,
There is different yield displacements respectively under inside and outside two ring damper different anti-seismic levels.
By finite element modelling, analysis meter calculates maximum of the inside and outside ring damper when displacement is designed laterally respectively
Deflection, the thickness of the connection backing plate 3 is more than the maximum lateral deformation amount.Wherein, determine when design displacement refers to design
Maximum relative displacement of the damper in macroseism, yield displacement refers to that the inner ring and outer rings of damper initially enter surrender respectively
Corresponding displacement during state.In the design process of damper, according to different target of the structure under different fortification earthquakes
Displacement demand, relative deformation of the damper under different fortifications, Ran Houtong are calculated by the displacement of targets demand of structure
Cross finite element modelling and experiment determines the size of inner ring and outer rings damper.
When practical application, many level damping classification surrender metal dampers can be applied to various building structure rings
Under border, for example, between Coupled Shear Wall 5.Specifically, between the Coupled Shear Wall 5 or coupling beam top has building
Plate 6, the design displacement is less than the vertical clearance between many level damping classification surrender metal dampers and the floor 6
From.The non-compliant section 4 of the coupling beam is preferably designed to non-uniform beam, the termination size of non-uniform beam and the middle part size phase of outer shroud
Closely.
Also many level damping classification surrender metal damper branch can be located at the interlayer of frame structure and then is classified and bent
, can be specifically supported in metal damper in frame structure by support or wall by clothes power consumption.(not shown)
When flexural deformation, in small shake or middle shake, the less surrender of inner ring damper 2 power consumption, the larger outer shroud in outside
Shape damper 1 is in elasticity, and in big shake, inside and outside two ring dampers surrender power consumption together.
During construction, such as Fig. 8, this many level damping classification surrender metal damper assembled can be completed in advance, metal damper
Connection backing plate 3 at be connected with the built-in fitting (i.e. non-compliant section 4) in coupling beam by high-strength bolt.
ABAQUS numerical simulations are carried out to this example, referring to accompanying drawing 5, it can be found that the utility model is acted in middle earthquake magnitude
Under, inner ring damper 2 enters plasticity and consumes energy, and outer shroud damper 1 is in elastic stage;Referring to accompanying drawing 6, it can be found that making in big shake
Under, two ring dampers enter plasticity and consume energy together;Fig. 7 is hysteresis loop figure of the present utility model, can be sent out from figure
Existing skeleton curve of the present utility model is presented typical three linear character, i.e. starting stage elasticity, and then inner ring damper 2 is bent
Clothes, last outer shroud damper 1 is surrendered, and illustrates that the utility model is fully achieved expected design, shake and big shake can meet simultaneously in
Classification surrender is required.
Embodiment two (not shown):
On the basis of embodiment one, the utility model also provides a kind of many level damping classification surrender metal dampers,
Compared to embodiment one, difference is, have in the present embodiment it is outer in interior three ring dampers, and adjacent annular damper
Between still by connection backing plate be connected.And then, in application implementation, the ring damper in inner ring surrenders consumption in small shake
Can (i.e. small shake when middle ring and outer shroud keep elasticity), just surrender is consumed energy (during middle shake in middle earthquake magnitude for the ring damper of middle ring
Inner ring and middle ring all surrender power consumption, and outer shroud keeps elasticity), ring damper just surrender power consumption (big shake in big shake of outer shroud
When inner ring, middle ring and outer shroud all surrender power consumption).Other structures are substantially identical with embodiment one, and just no longer this adds to repeat.
After completing above-mentioned implementation process, the utility model following characteristics should be able to be embodied:
The utility model can be used in Coupled Shear Wall or frame structure, can realize dividing under different anti-seismic fortification
The function of level surrender power consumption, protects the safety of agent structure, and the utility model to be easy to reparation after injury and change.
The above-mentioned description to embodiment is it will be appreciated that and using this for ease of those skilled in the art
Utility model.Person skilled in the art obviously easily can make various modifications to these embodiments, and herein
The General Principle of explanation is applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to
Above-described embodiment, according to announcement of the present utility model, do not depart from that the utility model category made changes those skilled in the art
Entering and change all should be within protection domain of the present utility model.