CN202380601U - Variable-friction damper - Google Patents
Variable-friction damper Download PDFInfo
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- CN202380601U CN202380601U CN2011204386258U CN201120438625U CN202380601U CN 202380601 U CN202380601 U CN 202380601U CN 2011204386258 U CN2011204386258 U CN 2011204386258U CN 201120438625 U CN201120438625 U CN 201120438625U CN 202380601 U CN202380601 U CN 202380601U
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Abstract
The utility model discloses a variable-friction damper. The variable-friction damper comprises a plurality of steel plates which are stacked or sheathed, wherein the middle parts of at least one pair of adjacent steel plates are in concave-convex surface contact, the other two steel plates are in plane contact, and a friction material is bonded among the other steel plates; the other surface of the steel plate with one concave or convex surface is a plane; the interval steel plates form steel plate groups; the first steel plate group and the friction material bonded on the first steel plate group are provided with at least one group of corresponding bolt holes; the second steel plate group and the friction material on the second steel plate group are provided with stripy chutes corresponding to the bolt holes along the length direction of the steel plate; and each group of bolt holes are respectively provided with bolts in a penetrating manner, and the steel plates and the friction materials are connected together by the bolt holes. The variable-friction damper disclosed by the utility model has the advantages that the linear damping provided by the friction mode is realized by means of positive pressure change, and the vibration reducing performance is good.
Description
Technical field
The utility model relates to a kind of damper, relates in particular to a kind of friction-changing damper that is used for antidetonation, belongs to building structure energy dissipation and damping control field.
Background technology
The developmental research of building structure energy-dissipating and shock-absorbing damper has become one of the focus of the research in earthquake resistant engineering field, the world.Consume earthquake input energy through in structure, setting up damper, protection agent structure member safety has extensively been proved a kind of effective seismic measures.Damper mainly contains metal damper, viscous damper, viscoelastic damper and frcition damper at present.Wherein frcition damper is direct with its principle, and simple structure is easily manufactured, and is cheap and by extensive concern and application.Frcition damper is the energy-consumption shock-absorption device that utilizes the friction dissipation vibrational energy of rubbing surface.The major defect of conventional frcition damper:
1) general frcition damper for building, because the effect of pretightning force, its rubbing surface is in high-stress state all the time; Under high-stress state, the friction factor of rubbing surface may change, and departs from the design load of expection; Make frcition damper cross getting up early and slide, or do not play cunning.
2) general frcition damper, its normal pressure is provided by pretightning force fully, and in application life, the attribute of its pretightning force and rubbing surface does not all change.Thereby maximal friction is in case confirm just generally can not to change, and its hysteresis loop is a rectangle.But in actual engineering design, if exert oneself according to design damper under the severe earthquake action, damper is then inoperative under middle shake and little shake, and as designing by middle shake, then little shake is inoperative, and effect is not enough again when shaking greatly.Because earthquake prediction and seismic regionalization theory is immature, the geological process that building structure faced often has very big uncertainty.In building structure, adopt friction-changing damper not will face the awkward situation that big shake, little shake can not take into account.
3) existing frcition damper often gives building structure with very big additional initial stiffness, does not rise when sliding at frcition damper, and it is equivalent to a rigid support, when rise sliding after its stiffness variation bigger, unfavorable to building structure aseismatic.
In addition, " adjacent structure " adjacent structure that both spacing distance was not enough or be divided into two-part building because of aseismic joint is set.Under the both of these case, building to withstand earthquake may bump in violent earthquake.Be the destruction that prevents to produce because of collision; Advise in China's building aseismicity standard: when aseismic joint structure on two sides height, rigidity and floor height differ big; The anti-wall that hits is set in the aseismic joint both sides, the anti-newel post of wall and the side column of framework of hitting in aseismic joint both sides, stirrup should be encrypted by overall height along the house.The design of this measure and the difficulty of construction are little, are easy to use.But the thinking that this is a kind of " passive stand to suffer hit " in the reinforcement of the local location that possibly bump, can only reduce the damage of colliding part, but collision solves to integrally-built influence and end.
The utility model content
The utility model puts forth effort to solve the above deficiency of existing frcition damper, and adjacent architectural field antidetonation characteristics, and the characteristics and the practical applications of providing fortification against earthquakes to China are actual, and a kind of friction-changing damper is provided, and it has favorable durability; And under little shake, middle shake, shake condition greatly, can both effectively play a role, in order to the dissipation seismic energy.
In order to solve the problems of the technologies described above; The utility model has adopted following technical scheme: a kind of friction-changing damper; Comprise a plurality of steel plates that stack or be set-located, the middle part of the steel plate that at least one pair of is adjacent is that corresponding concave surface contacts with convex surface, and two ends are plane contact; Be plane contact between all the other adjacent two steel plates, and be bonded with friction material on the side of at least one steel plate in the side that fits of two adjacent steel plates; One side is the plane for the another side of the steel plate of concave surface or convex surface;
Steel plate separately constitutes the first steel plate group and the second steel plate group respectively; One end of the said first steel plate group is connected on the same building structure, and an end of the said second steel plate group is connected in another identical building structure of the same building thing that the first steel plate group connected or on the same building structure of adjacent building; Offer corresponding at least one group of connecting hole on said first steel plate group and the bonding friction material above that; Offer on said second steel plate group and the friction material on it of boning along the steel plate length direction with the corresponding bar shaped chute of connecting hole; Be equipped with the connector that said steel plate and friction material are linked together in every group of said connecting hole respectively, said connector passes said bar shaped chute.
Preferably, have on concave surface and the convex surface of steel plate of said concave surface and convex surface and be coated with the Teflon material layer.
Preferably, the spring on the steel plate outside at least one end setting of said connector is resisted against.
Preferably, said spring is a disk spring.
Preferably; Said steel plate is five; Comprise central layer, two first steel plates and two second steel plates in the middle of being positioned at; The two sides of said central layer all are bonded with friction material, fit with the said friction material that is positioned at the central layer two sides respectively in a side of two said first steel plates, fit with a side of one of them said second steel plate respectively in the another side of two said first steel plates; The two ends of the side that said first steel plate and said second steel plate fit are plane contact; The middle part be corresponding convex surface and the contacting of concave surface, and offers the corresponding connecting hole of organizing on said central layer, friction material and second steel plate more, offers the said first group number steel plate length direction and connecting hole identical and corresponding said bar shaped chute in edge on said first steel plate.
Preferably, it is characterized in that said concave surface contacts to be formed with the convexity that at least one has cambered surface on a steel plate face therein with convex surface, with the groove that is formed with on another steel plate face of its applying with the protruding corresponding cambered surface of said cambered surface.
Preferably, said convexity is two, and said groove also is two.
Preferably, said friction-changing damper is circular section brace type frcition damper, shearing-type frcition damper, flat frcition damper or hinged point type frcition damper.
Compared with prior art, the friction-changing damper beneficial effect of the utility model is:
1, the friction-changing damper of the utility model utilizes the domatic contact between the steel plate; The variation that in sliding process, relies on normal pressure realizes the change of frictional force under the constant situation of friction factor; Thereby linear damping is provided, makes the friction-changing damper of the utility model good damping performance all arranged in little shake, middle shake and big earthquake centre.
2, after the friction-changing damper of the utility model is installed in the building structure, can regulates the additional stiffness of its generation as required, even can reach the effect that does not increase additional stiffness, and use flexibly, for the designer provides bigger selection space.
3, the friction-changing damper of the utility model is installed in the building structure of adjacent building, and there is some difference, the energy of seismic stimulation is along the distribution in cycle comparatively evenly when (adjacent architectural for highrise building and podium formation is very easy to satisfy this requirement) when the dynamic characteristics of two buildings.Adopt the damper of diabolo hysteresis loop or type triangle hysteresis loop (like dog bone shape), can suppress the displacement response of two buildings simultaneously, avoid under big shake, bumping.
4, the friction-changing damper of the utility model simple in structure, draw materials easy, cheap.
5, the utility model can have various ways, is applicable to multiple various structure, can be installed in the effect that various structure position is realized energy-dissipating and shock-absorbing as required.
6, the friction-changing damper applicability of the utility model is strong, and it is exerted oneself and profile can be adjusted according to design demand flexibly, and its adjustable zone is bigger, in various situation the effect that consumes energy is preferably arranged all simultaneously.
7, the friction-changing damper good endurance of the utility model receives external environment influence such as temperature very little.Weatherability is strong, and it is wide to be suitable for the region.
Description of drawings
Fig. 1 is the sectional view of embodiment one of the friction-changing damper of the utility model;
Fig. 2 is the structural representation of central layer of embodiment one of the friction-changing damper of the utility model;
Fig. 3 is the structural representation of first steel plate of embodiment one of the friction-changing damper of the utility model;
Fig. 4 is the structural representation of second steel plate of embodiment one of the friction-changing damper of the utility model;
Fig. 5 is the vertical view of Fig. 2;
Fig. 6 is the vertical view of Fig. 3;
Fig. 7 is the vertical view of Fig. 4;
Fig. 8 is the structural representation of embodiment two of the friction-changing damper of the utility model;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the another kind of view of Fig. 9;
Figure 11 vertically cuts open figure for the embodiment's three of the friction-changing damper of the utility model;
Figure 12 for the C-C of Figure 11 to cuing open figure;
Figure 13 is the structural representation of embodiment four of the friction-changing damper of the utility model;
Figure 14 is the structural representation of the 3rd steel plate of embodiment four of the friction-changing damper of the utility model;
Figure 15 is the structural representation of second steel plate of embodiment four of the friction-changing damper of the utility model;
Figure 16 is the structural representation of first steel plate of embodiment four of the friction-changing damper of the utility model;
Figure 17 for the A-A of Figure 13 to cuing open figure;
Figure 18 for the B-B of Figure 13 to cuing open figure;
Figure 19 is the hysteresis loop sketch map that sliding power has been arranged of the friction-changing damper of the utility model;
Figure 20 plays the hysteresis loop sketch map of sliding power for the nothing of the friction-changing damper of the utility model.
Description of reference numerals
1-central layer 11-central layer connecting portion
12-fixed part 13-friction part
14-connecting hole 15-fixing hole
The 2-first steel plate 21-is protruding
The 22-first connecting portion 23-chute
The 3-second steel plate 31-groove
The 32-second connecting portion 4-friction material
5-bolt 6-disk spring
100-the 4th steel plate 101-the 5th block plate
102-friction material 103-bolt
104-spring 105-reinforcement
The inboard steel plate 201-of 200-middle steel plate
202-outside steel plate 203-friction material
204-bolt 205-spring
Following of 300-seat of honour 301-
302-the 3rd steel plate 303-friction material
The 304-first steel plate 305-second steel plate
306-the 4th steel plate 307-the 5th steel plate
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail, but not as the qualification to the utility model.
Embodiment one
Extremely shown in Figure 7 like Fig. 1; Present embodiment one is a kind of flat friction-changing damper, and it comprises five blocks of steel plates that are stacked together, and in the middle of wherein being positioned at is central layer 1; What live apart central layer 1 both sides is two first steel plates 2, and what be positioned at first steel plate, 2 outsides is second steel plate 3.
Like Fig. 1, Fig. 2 and shown in Figure 5, the two sides of central layer 1 all are bonded with friction material 4, and friction material 4 is the heavy-duty friction material.One end of central layer 1 has the central layer connecting portion 11 that is connected with building structure; Be the fixed part 12 of central layer 1 with central layer connecting portion 11 joins; Fixed part 12 is provided with three row's fixing holes 15; Other parts are the friction part 13 of central layer 1, and friction part 13 is provided with two row's connecting holes 14 (also having two row's connecting holes 14 on the friction material 4 certainly).
Like Fig. 1, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, first steel plate 2 is domatic the contact with second steel plate, 3 relative sides, and promptly first steel plate 2 and the middle part of second steel plate 3 are corresponding convex surface and the contacting of concave surface.The middle part of first steel plate 2 is formed with the convexity 21 (can certainly for one or more) of two cambered surfaces, and the middle part respective protrusions 21 of second steel plate 3 is formed with the groove 31 (quantity of groove 31 should be identical with protruding 21 quantity) of two cambered surfaces.Also can convexity be arranged on second steel plate 3, corresponding groove is arranged on first steel plate 2 also can be realized identical effect.In addition; Also can be on first steel plate 2 and second steel plate, 3 corresponding sides, to have sine-shaped cambered surface; And formation corresponding protruding 21 or groove 31; Just not only fluted but also convexity is arranged on first steel plate 2, and also both fluted on second steel plate 3 convexity is arranged, but should guarantee that the convexity 21 on first steel plate 2 and second steel plate 3 is corresponding with groove 31.The two ends of second steel plate 3 then are plane contact.One end of first steel plate 2 stretches out on first connecting portion, 22, the first connecting portions 22 that second steel plate 3 is formed for being connected with building structure fixing hole 15 is set, and is used for two first steel plates 2 are linked together through bolt.Two second steel plates 3 stretch out the end that first steel plate 2 is not provided with first connecting portion 22 away from an end of first connecting portion 22 and form second connecting portion 32 that is connected with building structure; On second connecting portion 32 fixing hole 15 is set, is used for two second steel plates 3 and central layer 1 are fixed together.The middle part of second steel plate 3 be provided with central layer 1 on friction part 13 on connecting hole 14 corresponding connecting holes 14.The part of first steel plate 2 except that first connecting portion 22 offers along the chute 23 of the bar shaped of first steel plate, 2 length directions.
As shown in Figure 1, the friction material 4 of a side of first steel plate 2 and central layer 1 one sides is fitted, and forms rubbing surface, and the friction material 4 of a side of another first steel plate 2 and the another side of central layer 1 is fitted, and also forms rubbing surface.Two first steel plates 2 are not fitted with a side of one second steel plate 3 respectively with the side that friction material is fitted, and form domatic contact.Bolt 5 after passing connecting hole 14, the connecting hole 14 on chute 23, friction material 4 and the central layer 1 on first steel plate 2, the chute 23 on another first steel plate 2 and the connecting hole 14 on another second steel plate on second steel plate successively links together above-mentioned parts.Just two second steel plates 3 are corresponding settings with connecting hole 4 on central layer 1 and the friction material 4, form many group connecting holes, and every group wears a bolt 5 in connecting, and bolt 5 passes chute 23, can in chute 23, slide.Certainly, also can on first steel plate 2, offer a plurality of connecting holes, and on second steel plate 3 and central layer 1 and friction material 4, offer chute, also can play identical connection effect.The two ends of bolt 5 are provided with the spring that is against on second steel plate 2 respectively, and so that a pretightning force to be provided, this spring preferably has disk spring 6.
Second connecting portion 32 of the connecting portion 11 of central layer and two second steel plates 3 is connected in the building structure after fixing hole 12 interior bolts 5 are fixed together through being located in, and first connecting portion 22 of two first steel plates 2 is connected in another building structure after bolt 5 is fixed together through wearing.When the friction-changing damper of embodiment one is worked; Second steel plate 3 is with central layer 1 and be bonded in the direction motion of friction material 4 courts on the central layer 1; 2 motions in the opposite direction of first steel plate, bolt 5 is with second steel plate 3 and central layer 1 motion and slip in chute 23 in the process of motion.First steel plate 2 and second steel plate 3, when being begun to slide relatively by initial position, at first through one section planar slide section, when on this section, sliding, because the effect of bolt 5 pretightning forces, the frictional force between first steel plate 2 and the friction material 4 remains unchanged.When to domatic when lasting (when promptly convexity 21 shifts out in by groove 31); Between first steel plate 2 and second steel plate 3 because domatic existence; Distance therebetween can increase, and then compression disk spring 6, makes it to produce normal pressure; Increase the normal direction normal pressure of the rubbing surface between first steel plate 2 and the friction material 4, and then increase frictional force.Along with the increase of relative slip, the distance that first steel plate 2 and second steel plate are 3 increases, and the normal pressure that is produced by disk spring 6 increases thereupon, and then frictional force increases the energy dissipation capacity enhancing.Thereby play good damping effect.
As a kind of preferred version of embodiment one, produce the metal adhesion for fear of the metallic molecule effect between first steel plate 2 and second steel plate 3, first steel plate 2 and second steel plate 3 be plating Teflon material on the contact surface of fitting.
Embodiment two
To shown in Figure 10, embodiment two is a kind of hinged point type friction-changing damper like Fig. 8, and it comprises eight block plates; As shown in Figure 8, first and third, five and seven steel plates are one group in eight block plates, and second, four, six and eight steel plates are one group; Just two groups of steel plates are provided with respectively at interval; The opposite end of two groups of steel plates being stacked together separately, the middle part between the 4th steel plate 100 and the 5th block plate 101 is domatic contact, i.e. male and fomale(M&F) contact; (with embodiment one domatic identical, repeat no more) at this.Be bonded with friction material 102 between all the other adjacent two block plates.On two groups of steel plates and bonding friction material 102 above that, all offer corresponding connecting hole (not shown), wear the bolt that eight block plates are hinged 103 in the connecting hole.The other end of two groups of steel plates is connected on the different building units, and two groups of steel plates can be respectively around bolt 103 rotations.The two ends of bolt 103 are provided with spring 104.
Embodiment two is basic identical with the operating principle of embodiment one: the two ends of bolt 103 are provided with spring 104 and apply certain pretightning force.When the 4th steel plate 100 and the 5th steel plate 101 relatively rotate; Pushing of reinforcement 105 (being bossing) makes steel plate compression spring 104, makes the bigger clamping force of generation between the therebetween steel plate; Frictional force increases under the constant situation of friction factor thereby make, and energy dissipation capacity strengthens.Thereby play good damping effect.
A kind of preferred version as embodiment two; Be coated with the Teflon material on the side that the 4th steel plate 100 and the 5th steel plate 101 fit; To reduce the frictional force that produces owing to the friction between the 4th steel plate 100 and the 5th steel plate 101, the metal bonding is avoided in the contact between isolate steel plate simultaneously.
Embodiment three
Like Figure 11 and shown in Figure 12; Embodiment three is a circular section brace type friction-changing damper, and it comprises that ring set is located at a plurality of ring-type steel plates together, promptly inboard steel plate 200, middle steel plate 201 and outside steel plate 202; Inboard steel plate 200 is bonded with friction material 203 with the side that middle steel plate 201 fits; Form rubbing surface between middle steel plate 201 and the friction material 203, slide relatively in the time of in working order, middle steel plate 201 is domatic the contact with the middle part of outside steel plate 202; It is male and fomale(M&F) contact (this male and fomale(M&F) structure and principle are identical with embodiment one, repeat no more at this).Two ends are plane contact.Offer the corresponding connecting hole (not shown)s of many groups on outside steel plate 202, inboard steel plate 200 and the friction material 203 on it of boning; Middle steel plate 201 offers bar shaped chute (not shown) along its length direction; Wear bolt 204 respectively in every group of connecting hole; Bolt 204 passes chute, thereby inboard steel plate 200, friction material 203, middle steel plate 201 and outside steel plate 202 are linked together.The two ends of bolt 204 are provided with spring 205, and spring 205 is against respectively on inboard steel plate 200 and the outside steel plate 202.One end of outside steel plate 202 and inboard steel plate 200 is fixed together back and is connected on the same building structure, and the end opposite of middle steel plate 201 is fixed in another building structure.Its operating principle and effect are identical with embodiment one.
Embodiment four
Extremely shown in Figure 17 like Figure 13; Embodiment four is shearing friction-changing damper, and it comprises that the seat of honour 300, following 301 and two ends are positioned at the seat of honour 300 or following 's 301 steel plate, and the lower end of first and third and five steel plates is plugged in down in the seat 301; And with following 301 be fixed together; The upper end of second and four steel plates is plugged in the seat of honour 300, and is fixed together with the seat of honour 300, and the seat of honour 300 is connected in the different building structure with following 301.Shown in figure 14, the two-side adhesive friction material 303 of the 3rd steel plate 302, the lower end is provided with a row and following the fixing hole that links together 308, and the middle part is provided with two row's connecting holes 309.Second steel plate 305 and the 4th steel plate 306 structures are identical; Shown in figure 15; The row's fixing hole 308 that is connected with the seat of honour 300 is all offered in the upper end of second steel plate 305 and the 4th steel plate 306, and the middle part offers two and two row's connecting holes, 309 corresponding strip chutes 310.Second steel plate 305 and the 4th steel plate 306 are fitted with the friction material 303 of the 3rd steel plate 302 both sides respectively and are formed rubbing surface.Shown in figure 16, the structure of first steel plate 304 and the 5th steel plate 307 is identical, and its both lower end is all offered a row and is used for and following 301 fixing hole 308 that is fixedly connected, and the middle part offers two row's connecting holes 309.Shown in figure 17, first steel plate 304 is that domatic the contact is the male and fomale(M&F) contact with the middle part of second steel plate 305, and the 4th steel plate 306 is that domatic contact is male and fomale(M&F) contact (the male and fomale(M&F) contact is identical with embodiment one) with the middle part of the 5th steel plate 307.Wear the bolt (not shown) that connects together in the corresponding connecting hole on first steel plate 304, the 3rd steel plate 302 and the 5th steel plate 307, said bolt passes bar shaped chute 310.The operating principle of the shearing friction-changing damper of this embodiment four and embodiment one are basic identical.
Can know that by above-mentioned each embodiment the friction-changing damper of the utility model has been designed the friction-changing damper with syllogic hysteresis loop shown in figure 19 targetedly.Its basic ideas are: in sliding process, friction factor is constant, and is domatic through between adjacent two block plates, being provided with, and the distortion of length direction is converted into the compression of vertical direction spring, thereby and then changes normal pressure and increase frictional force.When damper system is in initial position, the domatic smooth section central authorities that are in, when distortion hour, on smooth section, slide, frictional force remains unchanged; When distortion is big, get into domatic section slip, amount of spring compression increases, and normal pressure increases, and frictional force increases.Thereby make friction-changing damper that the linear friction damping can be provided, make damper good damping performance all arranged in little shake, middle shake or big earthquake centre.
The hysteresis loop sketch map that sliding power has been arranged shown in figure 19, transverse axis is represented the deflection that friction-changing damper is stretched and compresses, and wherein negative axle is for being compressed, and positive axis is for being stretched.The longitudinal axis representes that friction-changing damper exerts oneself.The initial pretightning force of the friction-changing damper of the utility model is less, can better reduce the pretightning force loss that causes owing to bolt is lax, avoids because the phenomenon that sticks together between the big steel plate that makes friction-changing damper of normal pressure.The contacted steel plate interface surface of male and fomale(M&F) is by a part of plane and a part of domatic composition, and during damper work, first plane and plane rub, and the hysteresis loop of this moment is one section straightway that is parallel to transverse axis.After reaching certain distortion, get into the slope friction part, because domatic effect, the compression spring increases the pretightning force of damper, and frictional force also increases thereupon, and the hysteresis loop of this moment is a rising line segment.After reaching maximum distortion, to the initial position motion, along with domatic slip, the decrement of spring also reduces gradually, and the pretightning force that is produced by length of spring compressed also reduces gradually, and the hysteresis loop of this moment is the oblique line of four-quadrant sensing initial point.When sliding into the domatic end, when getting into the planar slide section again, spring is returned to initial pretightning force, and hysteresis loop becomes straight line.Therefore, utilize above-mentioned principle, can damper be made the various ways in the foregoing description.
The friction-changing damper initial position of the utility model, two have the steel plate of domatic contact The initial segment be the plane contact section that certain-length is arranged, its length should determine according to pretightning force size and material compressive strength.Two planar slide sections between domatic should be set according to requirement of engineering.The domatic gradient should be confirmed according to the design limit distortion and the spring rate of maximum damper jointly.Domatic length is unsuitable too short, should guarantee after reaching maximum distortion, to still have between the steel plate enough contacts area to guarantee that plastic strain does not take place steel plate.Simultaneously be metal sheet by steel plate, its contact surface should adopt coating to handle, and avoids sticking together.
Certainly; When the friction-changing damper of the utility model is applied on the adjacent building; Preferably adopt the friction-changing damper of the generation do not had sliding power diabolo hysteresis loop shown in figure 20; Transverse axis among Figure 20 is represented the deflection that friction-changing damper is stretched and compresses, and wherein negative axle is for being compressed, and positive axis is for being stretched.The longitudinal axis representes that friction-changing damper exerts oneself.This friction-changing damper does not have initial pretightning force, and just the two ends of bolt are not replaced on two steel plates in the outside, can not exert pressure to steel plate, promptly do not have pretightning force, owing to there is not pretightning force just not have sliding power yet.
Above embodiment is merely the exemplary embodiment of the utility model, is not used in restriction the utility model, and the protection domain of the utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in the essence and protection domain of the utility model, this modification or be equal to replacement and also should be regarded as dropping in the protection domain of the utility model.
Claims (8)
1. friction-changing damper; Comprise a plurality of steel plates that stack or be set-located; It is characterized in that the middle part of the steel plate that at least one pair of is adjacent is that corresponding concave surface contacts with convex surface, two ends are plane contact; Be plane contact between all the other adjacent two steel plates, and be bonded with friction material on the side of at least one steel plate in the side that fits of two adjacent steel plates; One side is the plane for the another side of the steel plate of concave surface or convex surface;
Steel plate separately constitutes the first steel plate group and the second steel plate group respectively; One end of the said first steel plate group is connected on the same building structure of same building thing, and an end of the said second steel plate group is connected in another identical building structure of the same building thing that the first steel plate group connected or on the same building structure of adjacent building; Offer corresponding at least one group of connecting hole on said first steel plate group and the bonding friction material above that; Offer on said second steel plate group and the friction material on it of boning along the steel plate length direction with the corresponding bar shaped chute of connecting hole; Be equipped with the connector that said steel plate and friction material are linked together in every group of said connecting hole respectively, said connector passes said bar shaped chute.
2. friction-changing damper according to claim 1 is characterized in that, has on concave surface and the convex surface of steel plate of said concave surface and convex surface to be coated with the Teflon material layer.
3. friction-changing damper according to claim 1 is characterized in that, the spring on the steel plate outside at least one end setting of said connector is resisted against.
4. friction-changing damper according to claim 3 is characterized in that, said spring is a disk spring.
5. friction-changing damper according to claim 1; It is characterized in that; Said steel plate is five, comprises central layer, two first steel plates and two second steel plates in the middle of being positioned at, and the two sides of said central layer all are bonded with friction material; Fit with the said friction material that is positioned at the central layer two sides respectively in one side of two said first steel plates; Fit with a side of one of them said second steel plate respectively in the another side of two said first steel plates, the two ends of the side that said first steel plate and said second steel plate fit are plane contact, and the middle part is corresponding convex surface and the contacting of concave surface; Offer corresponding many group connecting holes on said central layer, friction material and second steel plate, offer on said first steel plate along the identical and corresponding said bar shaped chute of the said first group number steel plate length direction and connecting hole.
6. according to claim 1 or 5 described friction-changing dampers; It is characterized in that; Said concave surface contacts to be formed with the convexity that at least one has cambered surface on a steel plate face therein with convex surface, with the groove that is formed with on another steel plate face of its applying with the protruding corresponding cambered surface of said cambered surface.
7. friction-changing damper according to claim 6 is characterized in that, said convexity is two, and said groove also is two.
8. friction-changing damper according to claim 1 is characterized in that, said friction-changing damper is circular section brace type frcition damper, shearing-type frcition damper, flat frcition damper or hinged point type frcition damper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204386258U CN202380601U (en) | 2011-11-08 | 2011-11-08 | Variable-friction damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204386258U CN202380601U (en) | 2011-11-08 | 2011-11-08 | Variable-friction damper |
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| Publication Number | Publication Date |
|---|---|
| CN202380601U true CN202380601U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204386258U Expired - Lifetime CN202380601U (en) | 2011-11-08 | 2011-11-08 | Variable-friction damper |
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| CN (1) | CN202380601U (en) |
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| CN103088931A (en) * | 2011-11-08 | 2013-05-08 | 建研科技股份有限公司 | variable friction damper |
| CN103696506A (en) * | 2013-12-25 | 2014-04-02 | 哈尔滨工业大学 | Plate type metal-rubber shear friction damper |
| CN103774770A (en) * | 2014-01-22 | 2014-05-07 | 尚守平 | Novel reinforced concrete friction damper |
| CN104612275A (en) * | 2014-12-12 | 2015-05-13 | 北京工业大学 | Embedded type large-stroke lead damper |
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| CN104947825A (en) * | 2015-06-12 | 2015-09-30 | 云南震安减震科技股份有限公司 | Viscoelastic damper and preparing method thereof |
| CN105297937A (en) * | 2015-11-06 | 2016-02-03 | 湖北文理学院 | Friction-force-changeable damper |
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| CN110939211A (en) * | 2019-12-23 | 2020-03-31 | 西安建筑科技大学 | High-energy-consumption composite damper and energy consumption method thereof |
| CN111910790A (en) * | 2020-08-18 | 2020-11-10 | 江苏工邦振控科技有限公司 | Composite friction damper |
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| CN114086662A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Friction energy dissipation damper, cantilever section friction energy dissipation beam column node and maintenance method thereof |
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| CN103696506A (en) * | 2013-12-25 | 2014-04-02 | 哈尔滨工业大学 | Plate type metal-rubber shear friction damper |
| CN103774770A (en) * | 2014-01-22 | 2014-05-07 | 尚守平 | Novel reinforced concrete friction damper |
| CN103774770B (en) * | 2014-01-22 | 2016-01-06 | 尚守平 | New reinforcing steel bar concrete frcition damper |
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| CN104612275B (en) * | 2014-12-12 | 2017-02-01 | 北京工业大学 | Embedded type large-stroke lead damper |
| CN104947825A (en) * | 2015-06-12 | 2015-09-30 | 云南震安减震科技股份有限公司 | Viscoelastic damper and preparing method thereof |
| CN104878851B (en) * | 2015-06-24 | 2017-04-12 | 福州大学 | Readable compound damper and using method thereof |
| CN104878851A (en) * | 2015-06-24 | 2015-09-02 | 福州大学 | Readable compound damper and using method thereof |
| CN105297937B (en) * | 2015-11-06 | 2017-07-28 | 湖北文理学院 | A kind of frictional force variable damper |
| CN105297937A (en) * | 2015-11-06 | 2016-02-03 | 湖北文理学院 | Friction-force-changeable damper |
| CN108999308A (en) * | 2017-05-17 | 2018-12-14 | 大连大学 | A kind of sliding damper of grading damper |
| CN108999308B (en) * | 2017-05-17 | 2021-01-26 | 大连大学 | Sliding shock absorber of grading shock absorber |
| CN108843727A (en) * | 2018-07-24 | 2018-11-20 | 江苏科技大学 | A kind of detachable dentation friction template damper |
| CN110939211A (en) * | 2019-12-23 | 2020-03-31 | 西安建筑科技大学 | High-energy-consumption composite damper and energy consumption method thereof |
| CN110939211B (en) * | 2019-12-23 | 2024-05-17 | 西安建筑科技大学 | High-energy-consumption composite damper and energy consumption method thereof |
| CN111910790A (en) * | 2020-08-18 | 2020-11-10 | 江苏工邦振控科技有限公司 | Composite friction damper |
| CN114251007A (en) * | 2020-09-23 | 2022-03-29 | 崔海元 | Bolt direct-pressurizing rubber damping device |
| CN112761278A (en) * | 2021-01-12 | 2021-05-07 | 广州大学 | Slotting energy-consuming steel pipe shear wall with hybrid damper |
| CN112761278B (en) * | 2021-01-12 | 2023-03-10 | 广州大学 | Slotting energy-consuming steel pipe shear wall with hybrid damper |
| CN114086662A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Friction energy dissipation damper, cantilever section friction energy dissipation beam column node and maintenance method thereof |
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