CN214697164U - Armpit support type friction damper - Google Patents
Armpit support type friction damper Download PDFInfo
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- CN214697164U CN214697164U CN202120000935.5U CN202120000935U CN214697164U CN 214697164 U CN214697164 U CN 214697164U CN 202120000935 U CN202120000935 U CN 202120000935U CN 214697164 U CN214697164 U CN 214697164U
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Abstract
The utility model discloses an armpit supporting type friction damper, which comprises a left connecting piece, a restraining part and a right connecting piece; the left connecting piece comprises a left ear plate fixing plate, the left end of the left ear plate fixing plate is provided with two left ear plates which are opposite up and down, and the middle part of the right end of the left ear plate fixing plate is provided with a connecting plate; the left end of the restraining part is connected with the left connecting piece, the restraining part comprises two restraining steel plates which are opposite up and down, and the restraining steel plates are respectively positioned at the upper end and the lower end of the connecting plate; the right connecting piece is connected with the right end of the restriction part, and has the advantages that: the friction damper can provide energy consumption when the beam-column node is subjected to small deformation, and the friction force provided by the friction damper is constant when the beam-column node is subjected to small earthquake or large earthquake, so that the additional internal force on the connected beam-column node is controllable; the armpit supporting type structure arrangement does not influence the building function, the occupied space is small, and the arrangement position is flexible; the internal assembly and the shaft pin type connecting structure of the friction damper can realize quick repair and replacement after an earthquake.
Description
Technical Field
The utility model relates to an energy dissipation shock attenuation technical field of reinforced concrete frame structure, concretely relates to armpit props formula friction type attenuator.
Background
The traditional anti-seismic structure resists the earthquake action through the self anti-seismic performance of the structure, and the energy input by the earthquake is stored and consumed at the cost of damage and destruction of structural members, which is a passive anti-seismic countermeasure of a structural system; the active anti-seismic countermeasure is to install energy dissipation and shock absorption devices on key parts of the structure and control the reaction of the structure under the action of the earthquake by adjusting or changing the dynamic characteristics of the structure, so that the method is a reasonable and effective anti-seismic approach; the existing research and experience after earthquake show that the energy dissipation and shock absorption can greatly reduce the effect of earthquake on the structure and comprehensively improve the earthquake resistance of the structure.
At present, a reinforced concrete frame structure is the most widely used structure type in China, multiple layers of reinforced concrete frame structures are mostly adopted in various schools, hospitals, office buildings and the like, and energy dissipation and shock absorption technologies are also quite common in the structures, however, the existing energy dissipation and shock absorption technologies applied to the reinforced concrete frame structures mostly have certain defects in the using process, such as buckling restrained brace, herringbone brace type metal dampers, gantry brace type viscous dampers, wall pier type metal dampers, wall pier type viscous dampers and the like, and occupy larger installation space, the functional requirements of the existing buildings are complex, the positions where shock absorption components can be arranged according to the conventional installation method are quite limited due to the requirements of the arrangement of internal walls of the buildings, door and window opening and the like, the arrangement of the shock absorption components and the building functions are quite large in conflict, and the expected shock absorption requirements cannot be realized, and the construction and installation difficulty is high, the manufacturing cost is high, and the development and application space of the energy dissipation and shock absorption technology is restricted, so that an armpit support type friction damper is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an armpit props formula friction type attenuator in order to solve above-mentioned problem, it can provide the power consumption to have the friction attenuator when the beam column node takes place little deformation, and shake for a short time, the frictional force size that provides when shaking greatly is invariable, it is controllable to the additional internal force of continuous beam column node, armpit props formula structure and arranges and can not influence architectural function, occupation space is little, it is nimble to set up the position, friction attenuator's internal assembly and axle pin formula connection structure can realize shaking advantages such as back quick restoration and change, see the explanation below for details.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an armpit supporting friction damper, which comprises a left connecting piece, a restraining part and a right connecting piece;
the left connecting piece comprises a left ear plate fixing plate, the left end of the left ear plate fixing plate is provided with two left ear plates which are opposite up and down, and the middle part of the right end of the left ear plate fixing plate is provided with a connecting plate;
the left end of the constraint part is connected with the left connecting piece;
the right connecting piece is connected with the right end of the restraint portion, the left end of the damper is guaranteed to be installed through the left connecting piece, the right end of the damper is guaranteed to be installed through the right connecting piece, and the left connecting piece and the right connecting piece are connected through the restraint portion.
Preferably, the restraining part comprises two restraining steel plates which are opposite up and down, the restraining steel plates are respectively positioned at the upper end and the lower end of the connecting plate, the left end of each restraining steel plate is connected with the connecting plate through two rows of fixing bolts which are uniformly distributed from front to back, the left end of the restraining steel plate at the upper end is welded with the left lug plate fixing plate, and the normal connection of the restraining part and the left connecting piece is guaranteed.
Preferably, the restraining steel plate and the connecting plate are respectively provided with a fixing hole position corresponding to the fixing bolt, and a foundation is laid for the connection of the restraining part and the left connecting piece.
Preferably, the right connecting piece comprises a right lug plate fixing plate, the right end of the right lug plate fixing plate is provided with two right lug plates which are opposite up and down, a middle shear plate is arranged in the middle of the left end of the right lug plate fixing plate, a transverse long slot hole is formed in the middle shear plate, the middle shear plate is connected with the right end of the constraint steel plate through two connecting bolts which are opposite left and right, friction core plates are arranged between the middle shear plate and the constraint steel plate, belleville springs are arranged between the connecting bolts and the constraint steel plate at the lower end, normal connection of the constraint part and the friction core plates with the right connecting piece is guaranteed, and tightness of the connecting bolts and stability of pre-tightening force provided by the connecting bolts are guaranteed.
Preferably, the connecting bolt corresponds to the long slotted hole at the left end, and the connecting bolt penetrates through the long slotted hole to lay a foundation for the connection of the right connecting piece and the restraining part.
Preferably, the inner sides of the two friction core plates are respectively attached to the upper end face and the lower end face of the middle shear plate, and the friction core plates are made of one or two of composite friction materials, metal friction materials and polymer friction materials, so that the friction core plates can provide stable friction coefficients and lay a foundation for subsequent energy consumption of the damper.
Preferably, the right end of the restraint steel plate and the friction core plate are respectively provided with a connecting hole position corresponding to the connecting bolt, so that a foundation is laid for the connection of the restraint steel plate, the friction core plate and the right connecting piece.
The utility model provides a connection structure of armpit props formula friction type attenuator, includes two built-in boards, a terminal surface middle part fixedly connected with gusset plate of built-in board, wherein the gusset plate on the built-in board is articulated mutually through pivot and left otic placode, and the gusset plate on another built-in board is articulated through pivot and right otic placode, all be equipped with the installation hole site corresponding with the pivot on left otic placode, gusset plate and the right otic placode, another terminal surface welding of built-in board has evenly distributed's anchor reinforcing bar, and wherein the anchor reinforcing bar on the built-in board and external beam fixed connection, the anchor reinforcing bar on another built-in board and external post fixed connection.
The beneficial effects of the utility model reside in that:
the friction damper can provide energy consumption when the beam-column node is subjected to small deformation, and the friction force provided by the friction damper is constant when the beam-column node is subjected to small earthquake or large earthquake, so that the additional internal force on the connected beam-column node is controllable;
the armpit supporting type structure arrangement does not influence the building function, the occupied space is small, and the arrangement position is flexible; the internal assembly and the shaft pin type connecting structure of the friction damper can realize quick repair and replacement after an earthquake.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the present invention;
figure 2 is a top view of the present invention from figure 1;
fig. 3 is a front view of the left connecting member 1 of fig. 1 according to the present invention;
fig. 4 is a top view of the left connector 1 of fig. 1 according to the present invention;
fig. 5 is a front view of the right connecting member 4 of fig. 1 according to the present invention;
fig. 6 is a top view of the right connector 4 of fig. 1 according to the present invention;
fig. 7 is a plan view of the restraint steel plate 3 of fig. 1 according to the present invention;
FIG. 8 is a top view of the friction core 7 of FIG. 1 of the present invention;
fig. 9 is a schematic view of the installation structure of fig. 1 according to the present invention.
The reference numerals are explained below:
1. a left connector; 101. a left ear panel; 102. a left otic placode fixing plate; 103. a connecting plate; 2. fixing the bolt; 3. restraining a steel plate; 4. a right connector; 401. a middle shear plate; 402. a long slot hole; 403. a right ear plate; 404. a right ear plate fixing plate; 5. a belleville spring; 6. a connecting bolt; 7. rubbing the core plate; 8. a gusset plate; 9. pre-burying a plate; 10. anchoring the reinforcing steel bars; 11. a pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides an armpit-supporting friction damper, which comprises a left connecting member 1, a restraining portion and a right connecting member 4; the left connecting piece 1 comprises a left ear plate fixing plate 102, the left end of the left ear plate fixing plate 102 is provided with two left ear plates 101 which are opposite up and down, the left end of the left ear plate fixing plate 102 is provided with a connecting plate 103, and the middle part of the right end of the left ear plate fixing plate 102 is provided with a connecting plate; the left end of the restraint part is connected with the left connecting piece 1, the restraint part comprises two restraint steel plates 3 which are opposite up and down, the restraint steel plates 3 are respectively positioned at the upper end and the lower end of the connecting plate 103, the left end of the restraint steel plate 3 is connected with the connecting plate 103 through two rows of fixing bolts 2 which are uniformly distributed from front to back, the left end of the restraint steel plate 3 at the upper end is welded with the left ear plate fixing plate 102, the normal connection of the restraint part and the left connecting piece 1 is ensured, fixing hole positions corresponding to the fixing bolts 2 are respectively arranged on the restraint steel plate 3 and the connecting plate 103, and a foundation is laid for the connection of the restraint part and the left connecting piece 1; the right connecting piece 4 is connected with the right end of the restriction part, the left end of the damper is ensured to be installed through the left connecting piece 1, the right end of the damper is ensured to be installed through the right connecting piece 4, the left connecting piece 1 is connected with the right connecting piece 4 through the restriction part, the right connecting piece 4 comprises a right lug plate fixing plate 404, the right end of the right lug plate fixing plate 404 is provided with two right lug plates 403 which are opposite up and down, the middle part of the left end of the right lug plate fixing plate 404 is provided with a middle shearing plate 401, the middle shearing plate 401 is provided with a transverse long slotted hole 402, the middle shearing plate 401 is connected with the right end of the restriction steel plate 3 through two connecting bolts 6 which are opposite left and right, the connecting bolts 6 correspond to the long slotted hole 402 at the left end, the connecting bolts 6 penetrate through the long slotted hole 402 to lay a foundation for the connection of the right connecting piece 4 and the restriction part, a friction core plate 7 is arranged between the middle shearing plate 401 and the restriction steel plate 3, the inner sides of the two friction core plates 7 are respectively attached to the upper end face and the lower end face of the middle shear plate 401, the friction core plates 7 are made of one or two of a composite friction material, a metal friction material and a polymer friction material, so that the friction core plates 7 can provide a stable friction coefficient, a foundation is laid for subsequent energy consumption of the damper, connecting hole positions corresponding to the connecting bolts 6 are arranged at the right end of the constraint steel plate 3 and the friction core plates 7, a foundation is laid for connection of the constraint steel plate 3, the friction core plates 7 and the right connecting piece 4, the belleville springs 5 are arranged between the connecting bolts 6 and the constraint steel plate 3 at the lower end, normal connection of the constraint part, the friction core plates 7 and the right connecting piece 4 is guaranteed, and tightness of the connecting bolts 6 and stability of pretightening force provided by the connecting bolts 6 are guaranteed.
In one embodiment of the utility model, the armpit-supporting friction damper with the structure is firstly sleeved on the connecting bolt 6 by the belleville spring 5, then according to the sequence shown in figure 1, the restraint steel plate 3, the right connecting piece 4 and the friction core plate 7 are arranged in turn, the connecting bolt 6 passes through the connecting hole sites or the slotted holes 402 on the restraint steel plate 3, the right connecting piece 4 and the friction core plate 7 from bottom to top in turn, and then the coupling nut of the coupling bolt 6 is tightened, thereby achieving the coupling between the constraining portion and the right connecting member 4, then the connecting plate 103 of the left connecting piece 1 is inserted between the two constraint steel plates 3, the fixing bolt 2 sequentially passes through the constraint steel plates 3 and the left connecting piece 1, then, the fixing nut of the fixing bolt 2 is screwed to realize the connection between the left connecting piece 1 and the restraining part, and finally, the restraining steel plate 3 at the upper end and the left lug plate fixing plate 102 of the left connecting piece 1 are welded together by welding.
It is worth noting that, a, the contact surfaces of the restraint steel plate 3, the friction core plate 7 and the middle shear plate 401 in the utility model all need to be subjected to rust prevention treatment, so as to ensure that the friction core plate 7 can provide stable friction coefficient in the later use process;
b. the diameter of the disc spring 5 in the utility model is set according to the friction force requirement of the armpit supporting friction type damper and the connection structure thereof, in order to ensure the long-term stable work of the disc spring 5, the pressure stress born by the disc spring can not be overlarge, and the pressure stress of a single disc spring 5 is controlled within the range of 10MPa-15 MPa;
c. the connecting bolt 6 and the fixing bolt 2 in the utility model are preferably high-strength bolts, which lays a foundation for the mutual movement between the friction core plate 7 and the middle shear plate 401 to generate constant friction force;
d. the width of the middle shear plate 401 in the utility model needs to be larger than the width of the connecting plate 103, so as to ensure the energy consumption for the contact area between the friction core plate 7 and the middle shear plate 401;
e. the utility model provides a before the attenuator was used, can be to this attenuator package, before the installation, adopt 1mm binding department and middle part shear plate 401 to seal the parcel to the attenuator, flexible foamer is clogged to inside, and the wire net piece is fixed in the package box outside, can ensure this device at transportation, hoist and mount, installation and later stage concrete placement's in-process, inside all kinds of debris and concrete mortar can't get into.
Referring to fig. 9, the connection structure of the underarm-supported friction damper includes two pre-embedded plates 9, a node plate 8 is fixedly connected to the middle of one end surface of each pre-embedded plate 9, wherein the node plate 8 on one pre-embedded plate 9 is hinged to a left ear plate 101 through a shaft pin 11, the node plate 8 on the other pre-embedded plate 9 is hinged to a right ear plate 403 through a shaft pin 11, mounting hole sites corresponding to the shaft pin 11 are respectively arranged on the left ear plate 101, the node plate 8 and the right ear plate 403, anchoring steel bars 10 are welded to the other end surface of each pre-embedded plate 9 and are uniformly distributed, the anchoring steel bars 10 on one pre-embedded plate 9 are fixedly connected to an external frame beam, and the anchoring steel bars 10 on the other pre-embedded plate 9 are fixedly connected to an external frame column.
In an embodiment of the utility model, the connection structure of the armpit-supporting friction damper with the above structure is adopted, a, the anchoring structure is positioned, the damper is respectively connected with the beam column through the left and right anchoring structures, the anchoring structure comprises three parts of a gusset plate 8, a pre-embedded plate 9 and anchoring steel bars 10, the two pre-embedded plates 9 are firstly respectively fixed on the template of the frame beam and the frame column to be constructed, the frame beam and the frame column steel bars are bound, and the damper anchoring steel bars 10 are respectively bound and connected with the corresponding frame beam steel bars and the corresponding frame column steel bars;
b. checking the installation deviation of the anchoring structure again, checking the positioning deviation of the anchoring structure again before pouring, wherein the deviation of the anchoring structure along the central positioning axes of the frame beam and the column is not more than 2 mm;
c. and pouring concrete, and after the installation deviation of the anchoring structure is rechecked and checked, integrally pouring the concrete, thus finishing the connection and installation of the anchoring structure.
d. And (3) installing the damper, configuring the damper with a corresponding model strictly according to the requirements of a construction drawing, and after the concrete formwork is dismantled, respectively connecting the two ends of the damper with the gusset plates 8 of the anchoring structures on the frame beam and the frame column through the external shaft pin 11 to finish the installation of the damper.
The utility model has the advantages that:
the friction damper can provide energy consumption when the beam-column node is subjected to small deformation, and the friction force provided by the friction damper is constant when the beam-column node is subjected to small earthquake or large earthquake, so that the additional internal force on the connected beam-column node is controllable;
the armpit supporting type structure arrangement does not influence the building function, the occupied space is small, and the arrangement position is flexible; the internal assembly and the shaft pin type connecting structure of the friction damper can realize quick repair and replacement after an earthquake.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An armpit supporting type friction damper is characterized in that: comprises a left connecting piece (1), a restraining part and a right connecting piece (4);
the left connecting piece (1) comprises a left ear plate fixing plate (102), the left end of the left ear plate fixing plate (102) is provided with two left ear plates (101) which are opposite up and down, and the middle part of the right end of the left ear plate fixing plate (102) is provided with a connecting plate (103);
the left end of the constraint part is connected with the left connecting piece (1);
the right connecting piece (4) is connected with the right end of the restriction part;
the restraint part comprises two restraint steel plates (3) which are opposite up and down, the restraint steel plates (3) are respectively positioned at the upper end and the lower end of a connecting plate (103), the left end of each restraint steel plate (3) is connected with the connecting plate (103) through two rows of left and right fixing bolts (2) which are uniformly distributed from front to back, and the left end of the restraint steel plate (3) at the upper end is welded with a left lug plate fixing plate (102);
fixing hole positions corresponding to the fixing bolts (2) are arranged on the constraint steel plate (3) and the connecting plate (103);
right side connecting piece (4) include right otic placode fixed plate (404), the right-hand member of right otic placode fixed plate (404) is equipped with relative right otic placode (403) about two, the left end middle part of right otic placode fixed plate (404) is equipped with middle part shear plate (401), be equipped with horizontal long slotted hole (402) on middle part shear plate (401), the right-hand member of middle part shear plate (401) and restraint steel sheet (3) is controlled relative connecting bolt (6) through two and is connected, all be equipped with friction core (7) between middle part shear plate (401) and the restraint steel sheet (3), all be equipped with belleville spring (5) between connecting bolt (6) and the restraint steel sheet (3) of lower extreme.
2. The underarm friction type damper according to claim 1, wherein: the connecting bolt (6) corresponds to the long slotted hole (402) at the left end, and the connecting bolt (6) penetrates through the long slotted hole (402).
3. The underarm friction type damper according to claim 1, wherein: the inner sides of the two friction core plates (7) are respectively attached to the upper end face and the lower end face of the middle shear plate (401), and the friction core plates (7) are made of one or two of composite friction materials, metal friction materials and polymer friction materials.
4. The underarm friction type damper according to claim 1, wherein: and the right end of the restraint steel plate (3) and the friction core plate (7) are respectively provided with a connecting hole position corresponding to the connecting bolt (6).
5. The underarm friction type damper according to any one of claims 1-4, wherein: the embedded plate structure comprises two embedded plates (9), wherein a node plate (8) is fixedly connected to the middle of one end face of each embedded plate (9), the node plate (8) on one embedded plate (9) is hinged to a left ear plate (101) through a shaft pin (11), the node plate (8) on the other embedded plate (9) is hinged to a right ear plate (403) through the shaft pin (11), mounting hole positions corresponding to the shaft pin (11) are arranged on the left ear plate (101), the node plate (8) and the right ear plate (403), anchoring steel bars (10) which are uniformly distributed are welded to the other end face of each embedded plate (9), the anchoring steel bars (10) on one embedded plate (9) are fixedly connected with an external beam, and the anchoring steel bars (10) on the other embedded plate (9) are fixedly connected with an external column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120000935.5U CN214697164U (en) | 2021-01-03 | 2021-01-03 | Armpit support type friction damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120000935.5U CN214697164U (en) | 2021-01-03 | 2021-01-03 | Armpit support type friction damper |
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| CN214697164U true CN214697164U (en) | 2021-11-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086661A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Yield energy consumption rod, cantilever section yield energy consumption beam column node and maintenance method thereof |
| CN114277952A (en) * | 2022-01-14 | 2022-04-05 | 南京林业大学 | Composite damper |
| CN114293675A (en) * | 2022-02-23 | 2022-04-08 | 兰州理工大学 | Friction-metal yield composite type graded damper |
-
2021
- 2021-01-03 CN CN202120000935.5U patent/CN214697164U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086661A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Yield energy consumption rod, cantilever section yield energy consumption beam column node and maintenance method thereof |
| CN114277952A (en) * | 2022-01-14 | 2022-04-05 | 南京林业大学 | Composite damper |
| CN114293675A (en) * | 2022-02-23 | 2022-04-08 | 兰州理工大学 | Friction-metal yield composite type graded damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An underarm friction damper Effective date of registration: 20220621 Granted publication date: 20211112 Pledgee: Bank of Nanjing Limited by Share Ltd. Beijing branch Pledgor: BEIJING SAFE STRUCTURE DAMPER TECHNOLOGY CO.,LTD. Registration number: Y2022110000128 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |