CN211524262U - Friction type coupling beam damper - Google Patents
Friction type coupling beam damper Download PDFInfo
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- CN211524262U CN211524262U CN201921296567.2U CN201921296567U CN211524262U CN 211524262 U CN211524262 U CN 211524262U CN 201921296567 U CN201921296567 U CN 201921296567U CN 211524262 U CN211524262 U CN 211524262U
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Abstract
The utility model discloses a friction type connecting beam damper, which comprises a connecting piece, wherein the connecting piece comprises a left connecting piece and a right connecting piece, which are respectively used for being arranged in the middle of a connecting beam between a left connecting limb shear wall and a right connecting limb shear wall and connecting the two opposite ends of the connecting beam; and the restriction part is arranged between the left connecting piece and the right connecting piece and is used for connecting the left connecting piece and the right connecting piece, one side of the restriction part is fixed on the left connecting piece through welding, and the other side of the restriction part is fixedly connected with the right connecting piece through a connecting bolt. Has the advantages that: the connecting beam, the coupled shear wall members on the two sides and the bottom shear wall member can be better protected; the provided friction force is constant, and the upper limit of the internal force of the peripheral structural member connected with the friction force can be limited, so that the design and construction difficulty of the peripheral connecting member is reduced; the quick maintenance and quick recovery function after the earthquake can be realized.
Description
Technical Field
The utility model relates to a high-rise shear wall structure, high-rise frame shear structure, core section of thick bamboo structure link roof beam energy dissipation shock attenuation technical field, concretely relates to friction type links roof beam attenuator.
Background
The high-rise building mostly adopts structural forms such as shear walls, frames-shear walls, core cylinders and the like, and the connecting beam is used as a first defense line of the structure, can generate large deformation under the action of an earthquake and plays a main energy consumption role of the whole structure. However, the span of the connecting beam is small, so that shearing damage is often caused, the damage is serious under the action of an earthquake, and the energy consumption effect is limited. The connecting beam is used as an ideal position for arranging the energy dissipation element, and if the damper is arranged at the connecting beam, the shock resistance of the building structure can be obviously improved. In the prior art, the dampers which can be arranged at the connecting beam position include various types such as metal dampers, viscoelastic dampers and the like.
In the prior art, the damper is directly installed at the position of the coupling beam, and the following technical problems exist:
1. under the earthquake action of a high-intensity area, when the reinforced concrete connecting beam serving as an energy consumption component is stressed greatly, the shearing-pressing ratio of the reinforced concrete connecting beam is difficult to meet the standard requirement, the effective energy consumption action cannot be ensured, and the concrete connecting beam cannot be repaired after the earthquake;
2. other various coupling beam dampers have obvious superstrong strength after yielding, the ultimate bearing capacity is far greater than the yield force, and the design difficulty of peripheral connecting components can be increased;
3. the existing embedded parts of various coupling beam dampers basically adopt methods of welding anchor bars and section steel, so that the construction and installation difficulty is very high, and the installation of the coupling beam dampers often has great influence on the whole construction progress.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a friction type is roof beam attenuator even in order to solve above-mentioned problem just, the utility model provides an among a great deal of technical scheme preferred technical scheme have: the energy consumption capability of the connecting beam is improved, the design difficulty of the peripheral connecting components is reduced, and the connecting components are convenient to disassemble, repair and replace after the earthquake, and the technical effects are described in detail below.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a friction type connecting beam damper, which comprises a connecting piece, wherein the connecting piece comprises a left connecting piece and a right connecting piece, which are respectively used for being arranged in the middle of a connecting beam between a left shear wall and a right shear wall and connecting the two opposite ends of the connecting beam;
the restraint part is arranged between the left connecting piece and the right connecting piece and used for connecting the left connecting piece and the right connecting piece, the restraint part is of a flat plate structure, one side of the restraint part is fixed on the left connecting piece through welding, and the other side of the restraint part is fixedly connected with the right connecting piece through a connecting bolt;
the middle shearing plate is arranged on the right connecting piece and attached to the inner side of the constraint part, the middle shearing plate is connected with the constraint part through a connecting bolt, a long slotted hole is formed in the middle shearing plate, and the connecting bolt penetrates through the long slotted hole and is fixedly connected with the constraint part, so that the middle shearing plate can slide along the plane of the attached constraint part; an elastic part is arranged between one end of the connecting bolt, which does not penetrate through the middle shear plate, and the constraint part; and a friction core plate is arranged between the middle shearing plate and the constraint part and fixedly embedded at the inner sides of the steel plates at the two sides of the constraint part.
Preferably, the left connecting piece comprises a vertically arranged left sleeve fixing plate, a plurality of left connecting sleeves are arranged on the surface of one side of the left sleeve fixing plate, and a connecting plate connected with the restraining part is arranged on the other side of the left sleeve fixing plate;
the right connecting piece includes the right sleeve fixed plate of vertical setting, a side surface of right sleeve fixed plate is provided with the right connecting sleeve of a plurality of, the middle part shear plate set up perpendicularly in the opposite side middle part of right sleeve fixed plate.
Preferably, two long slotted holes are formed and are parallel to the right sleeve fixing plate; the connecting bolts are four groups in total and are distributed in a rectangular shape, and each long slotted hole correspondingly penetrates through two groups of connecting bolts.
Preferably, the two constraining portions are arranged on the left side and the right side of the middle shear plate respectively.
Preferably, the restraining portion is a restraining steel plate, and hole sites matched with the fixing bolts and the connecting bolts are formed in the restraining steel plate.
Preferably, the friction core plates are arranged in two blocks, are respectively embedded and fixed on the inner sides of the steel plates on the two sides of the constraint part, and are respectively attached to the surfaces on the two sides of the middle shear plate; hole sites matched with the connecting bolts are formed on the friction core plate.
Preferably, the elastic member is a belleville spring.
Preferably, the friction core plate is made of one or two of a composite friction material, a metal friction material and a polymer friction material.
Preferably, an outer packaging box for packaging the restraint part and the middle shear plate is arranged between the left connecting piece and the right connecting piece.
To sum up, the utility model has the advantages that:
1. the friction type connecting beam damper is used as a connecting piece, the sliding displacement is small, the initial rigidity is large, the ultimate deformation is large, the upper limit of the shearing force of the connecting beam can be effectively limited, the relative deformation can be generated under very small deformation (0.5 mm and below) for energy consumption, and the ultimate deformation (stroke) is far larger than that of a metal damper, so that the connecting beam, the two side coupled shear wall components and the bottom shear wall component are better protected;
2. the friction force is constant, and when the damper is driven by shearing force to deform relatively, the upper limit of the internal force of the peripheral structural member connected with the damper can be limited through the constant friction force of the damper, so that the design and construction difficulty of the peripheral connecting member is reduced.
3. Through bolted connection's assembled structural design, can conveniently dismantle and change impaired piece to realize quick maintenance after the shake and quick recovery function.
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 schematic front view of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
fig. 3 is a schematic front view of the left connecting member of the present invention;
FIG. 4 is a schematic top view of the structure of FIG. 3;
fig. 5 is a schematic top view of the friction core plate of the present invention;
fig. 6 is a schematic top view of the restraint steel plate of the present invention;
FIG. 7 is a schematic structural view of the right connecting member of the present invention;
FIG. 8 is a schematic top view of the structure of FIG. 7;
fig. 9 is a schematic view of the mounting structure of the present invention.
The reference numerals are explained below:
1. a left connector; 101. a left connecting sleeve; 102. a left sleeve 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 connecting sleeve; 404. a right sleeve fixing plate; 5. a belleville spring; 6. a connecting bolt; 7. rubbing the core plate; 8. a shear wall; 9. a damper anchor bar; 10. adding a steel bar; 11. an end nut.
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. 1-8, the present invention provides a friction type coupling beam damper, which comprises a connecting member, wherein the connecting member comprises a left connecting member 1 and a right connecting member 4, which are respectively used for being installed in the middle of a coupling beam between a left shear wall 8 and a right shear wall 8 and connecting the two opposite ends of the coupling beam;
the restraining part is arranged between the left connecting piece 1 and the right connecting piece 4 and used for connecting the left connecting piece 1 and the right connecting piece 4, the restraining part is of a flat plate structure, one side of the restraining part is fixedly connected with the left connecting piece 1 through welding, the other side of the restraining part is fixedly connected with the right connecting piece 4 through a connecting bolt 6, and the two restraining parts are arranged and are respectively arranged on the left side and the right side of the middle shear plate 401; the restraining part is a restraining steel plate 3, hole sites matched with the fixing bolts 2 and the connecting bolts 6 are formed in the restraining steel plate 3, and the contact surfaces of the restraining steel plate 3, the friction core plate 7 and the middle shear plate 401 need to be subjected to rust prevention treatment so as to ensure that the friction core plate 7 can provide a stable friction coefficient in the later use process;
the middle shear plate 401 is arranged on the right connecting piece 4 and attached to the inner sides of the two steel plates of the constraint part, the middle shear plate 401 is connected with the constraint part through a connecting bolt 6, a long slotted hole 402 is formed in the middle shear plate 401, and the connecting bolt 6 penetrates through the long slotted hole 402 and is fixedly connected with the constraint part, so that the middle shear plate 401 can slide along the plane of the constraint part attached to the long slotted hole 402; an elastic part is arranged between one end of the connecting bolt 6, which does not penetrate through the middle shearing plate 401, and the constraint part; the elastic piece is a belleville spring 5, the diameter of the elastic piece is set according to the friction force requirement of the friction type connecting beam damper, in order to ensure that the belleville spring 5 can work stably for a long time, the borne pressure stress cannot be overlarge, and the pressure stress of a single belleville spring 5 is controlled within the range of 10 MPa-15 MPa; a friction core plate 7 is arranged between the middle shearing plate 401 and the constraint part, the friction core plate 7 is fixedly embedded at the inner sides of the steel plates at two sides of the constraint part, the friction core plate 7 and the elastic part are core elements of the structure, the friction core plate 7 is made of one or two of a composite friction material, a metal friction material and a polymer friction material, stable friction coefficients can be provided, after the elastic part, the constraint part, the friction core plate 7 and the middle shearing plate 401 are connected through a connecting bolt 6, a pretightening force is provided by the connecting bolt 6, the pretightening force is quantitatively controlled through the torque of a torque wrench, the friction force of the friction damper can be accurately realized, the calculation formula is that the stable friction coefficients are realized by the friction plate material, and P is realized by applying quantitative pretightening force to the bolt;
when the shearing force borne by the two ends of the damper reaches the sliding load, the middle shearing plate 401 and the friction core plate 7 generate relative displacement, and structural vibration energy is converted into heat energy through friction force and dissipated, so that the damping effect is achieved;
the connecting bolts 6 and the fixing bolts 2 are high-strength bolts which are necessary components of the device and are key components for generating constant friction force by mutual movement between the friction core plate 7 and the middle shear plate 401.
As an optional embodiment, the left connecting member 1 includes a vertically arranged left sleeve fixing plate 102, a plurality of left connecting sleeves 101 are arranged on one side surface of the left sleeve fixing plate 102, and a connecting plate 103 connected with the constraining part is arranged on the other side; the right connecting piece 4 comprises a right sleeve fixing plate 404 which is vertically arranged, a plurality of right connecting sleeves 403 are arranged on the surface of one side of the right sleeve fixing plate 404, a middle shear plate 401 is vertically arranged in the middle of the other side of the right sleeve fixing plate 404, the left connecting sleeves 101 and the right connecting sleeves 403 are arranged in two rows or three rows and are respectively and uniformly distributed on the side surfaces of the left sleeve fixing plate 102 and the right sleeve fixing plate 404 and are fixed through perforation welding, and the arrangement number of the left connecting sleeves 101 and the right connecting sleeves 403 can be increased or reduced according to the friction force requirement of an actual product;
two long slot holes 402 are arranged and are parallel to the right sleeve fixing plate 404; the connecting bolts 6 are four groups in total and are distributed in a rectangular shape, each long slotted hole 402 correspondingly penetrates through two groups of connecting bolts 6, when the middle shearing plate 401 and the friction core plate 7 generate sliding deformation, the deformation track of the connecting bolts runs along the direction of the long slotted hole 402, and as the device possibly rotates to a certain extent during working deformation, in order to avoid collision between the long slotted hole 402 and the connecting bolts 6 during rotation and influence the stability of the output force of the friction type connecting beam damper, the width of the long slotted hole 402 is 1.5 times of the diameter of the connecting bolt 6 according to a test result;
the friction core plates 7 are arranged in two, are respectively embedded and fixed on the inner side surfaces of the steel plates on the two sides of the constraint part and are simultaneously attached to the two side surfaces of the middle shearing plate 401; a hole site matched with the connecting bolt 6 is formed on the friction core plate 7;
be provided with the outer package box of parcel pars constraining part and middle part shear plate 401 between left connecting piece 1 and the right connecting piece 4, outer package box sets up around this device, can ensure this device in the in-process of transportation, hoist and mount, installation and later stage concrete placement, inside all kinds of debris and concrete mortar can't get into.
As shown in fig. 9, the damper, when in use, comprises the steps of:
a. before the damper is packaged, a 1mm closing plate is adopted to seal and wrap the damper restraint part and the middle shearing plate 401, a flexible foaming agent is filled inside the damper restraint part and the middle shearing plate, and a steel wire mesh is fixed on the outer side of a packaging box;
b. the anchor bars are connected, the damper anchor bars 9 are respectively and symmetrically arranged on two sides of the damper, and one side of the damper anchor bar 9 is respectively and mechanically connected with the left connecting sleeve 101 of the left connecting piece 1 and the right connecting sleeve 403 of the right connecting piece 4; one end of the damper anchor bar 9, which is far away from the damper, is provided with an end nut 11 to increase the anchoring effect, and the connection structure of the end nut 11 is preset in the prior art and is not described in detail herein. By adopting a mechanical connection mode, compared with the traditional welding and fixing mode, the device can be conveniently transported, assembled on site and installed in a hoisting mode;
c. positioning the damper, configuring the damper with a corresponding model strictly according to the requirements of a construction drawing, placing the damper at the central position of a middle connecting beam span middle bottom die of the left and right coupled shear walls 8 after the erection of the template is completed, and centering and leveling the damper;
d. binding connecting beam reinforcing steel bars, binding and connecting damper anchoring reinforcing steel bars 9 with the connecting beam reinforcing steel bars, and arranging additional reinforcing steel bars 10 at the left connecting sleeve 101 and the right connecting sleeve 403 to enhance shear anchoring at two sides of the damper;
e. closing the side die of the connecting beam, and erecting the side die of the connecting beam after the damper is positioned and the anchoring steel bars 9 and the connecting beam steel bars are bound and fixed;
f. checking the installation deviation again, checking the positioning deviation of the damper before pouring, wherein the deviation of the damper along the central positioning axis is not more than 2 mm;
h. and pouring concrete, and after the installation deviation is checked and accepted, integrally pouring the concrete on the connecting beams and the coupled shear walls on the two sides of the damper. The installation of the damper can be completed.
The friction type connecting beam damper is used as a connecting piece, the sliding displacement is small, the initial rigidity is large, the ultimate deformation is large, the upper limit of the shearing force of the connecting beam can be effectively limited, the relative deformation can be generated under small deformation for energy consumption, and the ultimate deformation is far larger than that of a metal damper, so that the connecting beam, the two side coupled shear wall components and the bottom shear wall component are better protected; the friction force is constant, and when the damper is driven by the shearing force to deform relatively, the upper limit of the internal force of the peripheral structural member connected with the damper can be limited through the constant friction force of the damper, so that the design and construction difficulty of the peripheral connecting member is reduced; through bolted connection's assembled structural design, can conveniently dismantle and change impaired piece to realize quick maintenance after the shake and quick recovery function.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A friction type link beam damper, comprising:
the connecting piece comprises a left connecting piece (1) and a right connecting piece (4) which are respectively used for being arranged in the middle of the connecting beam between the left coupled shear wall and the right coupled shear wall (8) and connecting the two opposite ends of the connecting beam;
the restraint part is arranged between the left connecting piece (1) and the right connecting piece (4) and used for connecting the left connecting piece (1) and the right connecting piece (4), the restraint part is of a flat plate structure, one side of the restraint part is fixed to the left connecting piece (1) through welding, and the other side of the restraint part is fixedly connected with the right connecting piece (4) through a connecting bolt (6);
the middle shear plate (401) is arranged on the right connecting piece (4) and attached to the inner side of the constraint part, the middle shear plate (401) is connected with the constraint part through a connecting bolt (6), a long slotted hole (402) is formed in the middle shear plate (401), and the connecting bolt (6) penetrates through the long slotted hole (402) and then is fixedly connected with the constraint part, so that the middle shear plate (401) can slide along the direction of the long slotted hole (402) to be attached to the plane of the constraint part; an elastic piece is arranged between one end, which does not penetrate through the middle shearing plate (401), of the connecting bolt (6) and the constraint part; and a friction core plate (7) is arranged between the middle shearing plate (401) and the constraint part, and the friction core plate (7) is fixedly embedded at the inner sides of the steel plates at the two sides of the constraint part.
2. The friction type coupling beam damper according to claim 1, wherein: the left connecting piece (1) comprises a vertically arranged left sleeve fixing plate (102), a plurality of left connecting sleeves (101) are arranged on the surface of one side of the left sleeve fixing plate (102), and a connecting plate (103) connected with the restraining part is arranged on the other side of the left sleeve fixing plate;
right connecting piece (4) are including right sleeve fixed plate (404) of vertical setting, a side surface of right sleeve fixed plate (404) is provided with a plurality of right connecting sleeve (403), middle part shear plate (401) set up perpendicularly in the opposite side middle part of right sleeve fixed plate (404).
3. The friction type coupling beam damper according to claim 2, wherein: two long slotted holes (402) are arranged and are parallel to the right sleeve fixing plate (404); the connecting bolts (6) are four groups in total and distributed in a rectangular shape, and each long slotted hole (402) correspondingly penetrates through two groups of connecting bolts (6).
4. The friction type coupling beam damper according to claim 1, wherein: the constraint parts are provided with two constraint steel plates which are respectively arranged on two sides of the middle shear plate (401).
5. The friction type coupling beam damper according to claim 4, wherein: the restraining part is a restraining steel plate (3), and hole sites matched with the fixing bolts (2) and the connecting bolts (6) are formed in the restraining steel plate (3).
6. The friction type coupling beam damper according to claim 4, wherein: the friction core plates (7) are arranged in two, are respectively embedded and fixed at the inner sides of the steel plates at the two sides of the constraint part and are respectively attached to the surfaces at the two sides of the middle shearing plate (401); hole sites matched with the connecting bolts (6) are formed on the friction core plate (7).
7. The friction type coupling beam damper according to claim 1, wherein: the elastic piece is a belleville spring (5).
8. The friction type coupling beam damper according to claim 1, wherein: the friction core plate (7) is made of one or two of a composite friction material, a metal friction material and a polymer friction material.
9. The friction type coupling beam damper according to claim 1, wherein: an outer packaging box for packaging the restraint part and the middle shear plate (401) is arranged between the left connecting piece (1) and the right connecting piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921296567.2U CN211524262U (en) | 2019-08-12 | 2019-08-12 | Friction type coupling beam damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921296567.2U CN211524262U (en) | 2019-08-12 | 2019-08-12 | Friction type coupling beam damper |
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| CN211524262U true CN211524262U (en) | 2020-09-18 |
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| CN201921296567.2U Active CN211524262U (en) | 2019-08-12 | 2019-08-12 | Friction type coupling beam damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469176A (en) * | 2019-08-12 | 2019-11-19 | 北京赛福思创减震科技股份公司 | A kind of friction-type coupling beam damper and its application method |
| CN113882735A (en) * | 2021-09-30 | 2022-01-04 | 北京筑信润捷科技发展有限公司 | Rotary friction coupling beam damper |
| CN114293675A (en) * | 2022-02-23 | 2022-04-08 | 兰州理工大学 | Friction-metal yield composite type graded damper |
-
2019
- 2019-08-12 CN CN201921296567.2U patent/CN211524262U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469176A (en) * | 2019-08-12 | 2019-11-19 | 北京赛福思创减震科技股份公司 | A kind of friction-type coupling beam damper and its application method |
| CN113882735A (en) * | 2021-09-30 | 2022-01-04 | 北京筑信润捷科技发展有限公司 | Rotary friction coupling beam 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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