CN110029748B - Assembled mild steel-friction composite displacement damper and assembling method thereof - Google Patents
Assembled mild steel-friction composite displacement damper and assembling method thereof Download PDFInfo
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- CN110029748B CN110029748B CN201910418679.9A CN201910418679A CN110029748B CN 110029748 B CN110029748 B CN 110029748B CN 201910418679 A CN201910418679 A CN 201910418679A CN 110029748 B CN110029748 B CN 110029748B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000005488 sandblasting Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 33
- 230000007246 mechanism Effects 0.000 abstract description 15
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 15
- 230000035939 shock Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention relates to an assembled soft steel-friction composite displacement damper and an assembling method thereof, wherein the assembled soft steel-friction composite displacement damper comprises a top plate and a bottom plate which are both T-shaped and are arranged up and down in opposite directions, the top plate and the bottom plate both comprise a flange plate which is horizontally arranged and a web plate which is vertically connected with the middle part of the flange plate, the web plate of the top plate and the web plate of the bottom plate are connected through two connecting pieces which are transversely distributed side by side, the connecting pieces comprise two rigid plates which are symmetrically arranged at the front side and the rear side of the web plate, friction plates are arranged between the upper end and the lower end of each rigid plate and the web plate, the two rigid plates, the web plate and the friction plates are locked through high-strength bolts, a plurality of soft steel bars are arranged at the outer sides of the friction plates, and the soft steel bars longitudinally penetrate through the two rigid plates and the web plates. The invention has simple and reasonable structural design, effectively combines two energy consumption mechanisms of friction energy consumption and mild steel energy consumption, has good energy consumption performance, is convenient to construct, is simple to replace after earthquake, and has strong practicability.
Description
Technical field:
the invention relates to an assembled mild steel-friction composite displacement damper and an assembling method thereof.
The background technology is as follows:
the energy consumption principle of the soft steel damper is to utilize the excellent plastic deformation capability and the good hysteresis property of the soft steel to achieve the purposes of energy consumption and shock absorption. Under the action of earthquake, the mild steel damper firstly enters an elastoplastic state along with the increase of the lateral deformation of the building structure, so that the earthquake energy is dissipated, the dynamic response of the structure is rapidly attenuated, and the possibility and the degree of damage to the building structure are effectively reduced. The mild steel damper has stable performance and good fatigue performance, but has certain problems: 1) The soft steel damper is connected with the structure, generates certain residual deformation after entering a plastic state, and is complicated to replace after earthquake; 2) All the soft steel dampers are required to be replaced after earthquake, and waste is easily caused; 3) Most of the existing mild steel dampers are welded and connected, and under the action of reciprocating earthquake, the mild steel is easy to damage due to stress concentration; 4) The energy consumption mechanism is single; 5) After a large earthquake, a series of strong aftershocks are accompanied, and how to quickly recover the shock resistance and the service functions of the structure and the components is also a problem that needs special attention in the design of the soft steel damper in the future. The soft steel damper and the friction damper belong to displacement type dampers, and if the soft steel damper and the friction damper can be effectively combined together by two different energy consumption mechanisms, the energy consumption and shock absorption effects of the building structure can be effectively enhanced.
The invention comprises the following steps:
the invention improves the problems existing in the prior art, namely the technical problem to be solved by the invention is to provide the assembled mild steel-friction composite displacement damper which has reasonable structure and construction method and can effectively strengthen the energy consumption and shock absorption of the building structure;
also provided is a method of assembling an assembled mild steel-friction composite displacement damper.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides an assembled mild steel-friction compound displacement type attenuator, includes roof and the bottom plate that all is the T font and upper and lower opposite directions set up, roof and bottom plate all contain the flange board that the level set up and with the middle part of flange board link the web that establishes perpendicularly, be connected through two connecting pieces that distribute side by side along the transverse between the web of web and the bottom plate of roof, the connecting piece contains two rigidity boards of symmetry setting both sides around the web, all be provided with the friction plate between the upper and lower both ends of rigidity board and the web, run through the locking through high strength bolt between two rigidity boards, web and the friction plate, the outside of friction plate is equipped with a plurality of soft steel bars, the soft steel bar runs through two rigidity boards and web along vertically.
Further, the front end and the rear end of the flange plate are symmetrically provided with a plurality of flange plate bolt holes distributed along the transverse direction side by side, the flange plate bolt holes vertically penetrate through the flange plate, and the flange plate is fixed with a building member or an inclined strut through high-strength bolts penetrating through the flange plate bolt holes.
Furthermore, a plurality of stiffening ribs which are distributed along the transverse direction side by side are respectively arranged between the front side surface, the rear side surface and the flange plate.
Further, bolt holes A corresponding to the positions of the two connecting pieces are formed in the web plate, bolt holes B are formed in the rigid plate, bolt holes C are formed in the middle of the friction plate, and the bolt holes A, the bolt holes B and the bolt holes C are coaxially arranged; the high-strength bolt penetrates through the bolt hole A, the bolt hole B and the bolt hole C and then is matched and locked with the nut A.
Further, the aperture of the bolt hole A is 5-20mm larger than the diameter of the high-strength bolt.
Further, a plurality of soft steel bars are uniformly distributed in a ring shape around the axis of the friction plate; the web plate is provided with round holes A corresponding to the positions of the soft steel bars, the rigid plate is provided with round holes B corresponding to the positions of the soft steel bars, the round holes A and the round holes B are coaxially arranged, and the soft steel bars penetrate through the round holes A and the round holes B.
Further, external threads are respectively arranged on the outer walls of the front end and the rear end of the soft steel rod, and the soft steel rod penetrates through the round hole A and the round hole B and is locked and fixed through a nut B matched with the external threads.
Further, the diameter of the friction plate is at least 2cm smaller than the distance from the center of the bolt hole A to the center of the round hole A.
Furthermore, the front side and the rear side of the web plate, the rigid plate and the friction plate are subjected to sand blasting.
The invention adopts another technical scheme that: an assembling method of an assembled mild steel-friction composite displacement damper comprises the following steps:
step S1: the method comprises the steps of prefabricating a top plate, a bottom plate, a friction plate, a rigid plate, a soft steel rod and a high-strength bolt which are matched in size;
step S2: fixing the top plate and the horizontal building member or diagonal brace by using a high-strength bolt; fixing the bottom plate and the horizontal building component or diagonal brace by using high-strength bolts;
step S3: respectively placing a friction plate on the front side and the rear side of each bolt hole A on the web plates of the top plate and the bottom plate, and penetrating a high-strength bolt between the friction plates and the web plates positioned on the front side and the rear side;
step S4: respectively placing a rigid plate on the front side and the rear side of two high-strength bolts positioned on the same vertical plane, passing through bolt holes B on the rigid plates through the high-strength bolts, placing the two rigid plates on the two sides of a friction plate, fastening and fixing the nuts A and the high-strength bolts, and applying a certain pretightening force;
step S5: and a soft steel rod penetrates through a round hole A and a round hole B which are positioned between the web plate and the rigid plate and are positioned at the coaxial position, and two ends of the soft steel rod are respectively fastened and fixed by nuts B.
The working principle of the invention is as follows: the top plate and the bottom plate are relatively displaced under the action of earthquake, so that the rigid plate, the friction plate and the web plate are relatively displaced, and part of earthquake action is consumed by a friction energy consumption mechanism; when the relative displacement exceeds the limit value, the soft steel rod is sheared into a plastic energy consumption section, and at the moment, the soft steel rod plays an energy consumption mechanism, consumes most of earthquake actions, and achieves the effects of shock absorption and energy consumption.
Compared with the prior art, the invention has the following effects: the invention has simple and reasonable structural design, effectively combines two energy consumption mechanisms of friction energy consumption and mild steel energy consumption, has good energy consumption performance, is convenient to construct, is simple to replace after earthquake, and has strong practicability.
Description of the drawings:
FIG. 1 is a schematic diagram of a front view configuration of an embodiment of the present invention;
FIG. 2 is a schematic side view of an embodiment of the present invention;
FIG. 3 is a schematic view of a front view of a top or bottom plate in accordance with an embodiment of the present invention;
FIG. 4 is a schematic side view of a top or bottom panel in accordance with an embodiment of the invention;
FIG. 5 is a schematic view of a front view of a friction plate according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a front view of a rigid plate in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of a use state in an embodiment of the present invention;
FIG. 8 is a schematic diagram of another use state in an embodiment of the present invention.
In the figure:
1-a top plate; 2-a bottom plate; 3-friction plate; 4-a rigid plate; 5-high-strength bolts; 6-soft steel bars; 7-a web; 8-flange plate bolt holes; 9-stiffening ribs; 10-bolt holes A; 11-a round hole A;12 flange plates; 13-a round hole B; 14-bolt holes B; 15-bolt holes C; 16-a connector; 17-building structure; 18-diagonal bracing; 19-nut a; 20-nut B.
The specific embodiment is as follows:
the invention will be further described with reference to the drawings and examples for the purpose of more clearly explaining the invention, it being apparent that the drawings are only some of the embodiments of the invention.
In the direction description, the top plate 1 side is taken as an upper side, the bottom plate 2 side is taken as a lower side, and two sides of the two friction plates 3 which are positioned coaxially are respectively taken as a front side and a rear side.
As shown in fig. 1 to 8, the assembled mild steel-friction composite displacement damper comprises a top plate 1 and a bottom plate 2 which are both T-shaped and are arranged in an up-down opposite way, wherein the top plate 1 and the bottom plate 2 have the same structure and size, each of the top plate 1 and the bottom plate 2 comprises a flange plate 12 which is horizontally arranged and a web plate 7 which is vertically connected with the middle part of the flange plate 12, the flange plate 12 is used for being fixedly connected with a building member or a diagonal brace of a building structure, the web plate 7 of the top plate 1 and the web plate 7 of the bottom plate 2 are connected through two connecting pieces 16 which are distributed side by side along the transverse direction, the connecting pieces 16 comprise two rigid plates 4 which are symmetrically arranged at the front side and the rear side of the web plate 7, friction plates 3 are arranged between the upper end and the lower end of the rigid plates 4 and the web plate 7, the two rigid plates 4, the web plates 7 and the friction plates 3 are in penetrating locking through high-strength bolts 5, and the friction plates 3 are contacted with the rigid plates 4 and the web plates 7; the outer side of the friction plate 3 is provided with a plurality of soft steel bars 6, and the soft steel bars 6 longitudinally penetrate through the two rigid plates 4 and the web 7. By providing friction plates 3 between the rigid plates 4 and the web 7, so as to form a friction energy dissipation mechanism; a soft steel bar 6 is arranged between the web 7 and the rigid plate 4 in a penetrating way so as to form a soft steel energy consumption mechanism; when the earthquake-resistant plate is used, the top plate 1 and the bottom plate 2 are relatively displaced under the earthquake action, so that the rigid plate 4, the friction plate 3 and the web 7 are relatively displaced, and part of the earthquake action is consumed by a friction energy consumption mechanism; when the relative displacement exceeds the limit value, the soft steel rod 6 is sheared into a plastic energy consumption section, and at the moment, the soft steel rod 6 plays a role in energy consumption, consumes most of earthquake action and realizes the damping and energy consumption action.
In this embodiment, the top plate 1, the bottom plate 2, the friction plate 3 and the rigid plate 4 are made of carbon structural steel with high strength; the soft steel rod 6 is made of soft steel with low yield point. The flange plate 12 and the web 7 are rectangular, the rigid plate 4 is long, and the section of the friction plate 3 is circular.
In this embodiment, the front and rear ends of the flange plate 12 are symmetrically provided with a plurality of flange plate bolt holes 8 distributed side by side in the transverse direction, the flange plate bolt holes 8 vertically penetrate, and the flange plate 12 is fixed with the building member 17 or the diagonal brace 18 via high-strength bolts penetrating through the flange plate bolt holes 8.
In this embodiment, a plurality of stiffening ribs 9 distributed side by side in the transverse direction are respectively disposed between the front and rear side surfaces of the web 7 and the flange plate 12, so as to improve the overall structural strength of the top plate 1 and the bottom plate 2.
In this embodiment, the two connecting pieces 16 are symmetrically arranged left and right, the web 7 is provided with a bolt hole a10 corresponding to the positions of the two connecting pieces 16, the rigid plate 4 is provided with a bolt hole B14, the middle part of the friction plate 3 is provided with a bolt hole C15, and the bolt hole a10, the bolt hole B14 and the bolt hole C15 are coaxially arranged; the high-strength bolt 5 penetrates through the bolt holes A10, B14 and C15 and then is matched and locked with the nut A19.
Preferably, the aperture of the bolt hole A10 is 5-20mm larger than the diameter of the high-strength bolt 5.
Preferably, the number of the soft steel rods 6 is four, and the four soft steel rods 6 are uniformly distributed in an annular shape around the axis of the friction plate 3; four round holes A11 corresponding to the positions of the four soft steel bars 6 are formed in the web 7, four round holes B13 corresponding to the positions of the four soft steel bars 6 are formed in the rigid plate 4, the four round holes A11 and the four round holes B13 are coaxially arranged in a one-to-one correspondence mode, and the soft steel bars 6 penetrate through the round holes A11 and the round holes B13 which are located at coaxial positions.
In this embodiment, external threads are respectively disposed on the outer walls of the front and rear ends of the soft steel rod 6, and the soft steel rod 6 penetrates through the round hole a11 and the round hole B13 and is locked and fixed by a nut B20 matched with the external threads.
Preferably, the diameter of the friction plate 3 is at least 2cm smaller than the distance from the center of the bolt hole a10 to the center of the round hole a 11.
In this embodiment, the front and rear sides of the web 7, the rigid plate 4, and the friction plate 3 are sandblasted.
As shown in fig. 7, when the damper is used, the flange plate 12 of the top plate 1 is fixedly connected with a horizontal building member of a building structure 17 (building frame) by high-strength bolts, the flange plate 12 of the bottom plate 2 is fixedly connected with the upper end of the diagonal bracing 18 by high-strength bolts, and the lower end of the diagonal bracing 18 is fixedly connected with the horizontal building member positioned at the lower side. As shown in fig. 8, another usage state of the damper is: the flange plates of the top plate 1 and the bottom plate 2 are fixedly connected with one ends of the inclined struts 18 through high-strength bolts, the upper ends of the two inclined struts 18 connected with the flange plate 12 of the top plate 1 are fixedly connected with horizontal building components positioned on the upper side of the building structure 17, and the lower ends of the two inclined struts 18 connected with the flange plate 12 of the bottom plate 2 are fixedly connected with horizontal building components positioned on the lower side of the building structure 17. The top plate and the bottom plate are relatively displaced under the action of earthquake, so that the rigid plate, the friction plate and the web plate are relatively displaced, and part of earthquake action is consumed by a friction energy consumption mechanism; when the relative displacement exceeds the limit value, the soft steel rod is sheared into a plastic energy consumption section, and at the moment, the soft steel rod plays an energy consumption mechanism, consumes most of earthquake actions, and achieves the effects of shock absorption and energy consumption.
The invention has the advantages that:
(1) The top plate and the bottom plate are relatively displaced under the action of earthquake, so that the rigid rod, the friction plate and the web plate are relatively displaced, and part of earthquake action is consumed by a friction energy consumption mechanism; when the relative displacement exceeds the limit value, the soft steel rod is sheared into a plastic energy consumption section, and at the moment, the soft steel plays an energy consumption mechanism, so that most of earthquake actions are consumed;
(2) The friction energy consumption mechanism and the soft steel energy consumption mechanism are effectively combined, and the energy consumption performance is good;
(3) Easy material availability, convenient manufacture, and low cost;
(4) The full bolt is adopted for assembly, construction is convenient, replacement after earthquake is simple, and practicability is high.
The invention adopts another technical scheme that: the assembling method of the assembled mild steel-friction composite displacement damper takes two connecting pieces as an example, and comprises the following steps:
step S1: the prefabricated top plate, the bottom plate, the friction plate 8 blocks, the rigid plate 4 blocks, the soft steel rods 16 blocks, the high-strength bolts 4 blocks and the matched nuts are several;
step S2: fixing the top plate and the horizontal building member or diagonal brace by using a high-strength bolt; fixing the bottom plate and the horizontal building component or diagonal brace by using high-strength bolts;
step S3: respectively placing a friction plate on the front side and the rear side of each bolt hole A on the web plates of the top plate and the bottom plate, and penetrating a high-strength bolt between the friction plates and the web plates positioned on the front side and the rear side;
the method comprises the following steps:
step S31: taking a high-strength bolt 5 and two friction plates 3, and placing the two friction plates on the two sides of the web plate left end of the top plate by utilizing the high-strength bolt to pass through a bolt hole C15 on one friction plate, a bolt hole A10 on the left side of the web plate and a bolt hole C15 on the other friction plate;
step S32: step S31 is repeated by taking a high-strength bolt 5 and two friction plates 3, and the two friction plates are arranged on the two sides of the right end of the web plate of the top plate;
step S33: taking two high-strength bolts 5 and four friction plates 3, repeating the steps S31 and S32, and placing the friction plates at two ends of a web plate of a bottom plate;
step S4: two rigid plates are taken, the two rigid plates are placed on the front side and the rear side of two high-strength bolts positioned on the vertical plane of the left end, the high-strength bolts positioned on the upper side penetrate through bolt holes B at the upper end of the rigid plates, the high-strength bolts positioned on the lower side penetrate through bolt holes B at the lower end of the rigid plates, the two rigid plates are placed on the two sides of a friction plate, then nuts A are taken to be fastened with the high-strength bolts, and a certain pretightening force is applied; and S4, fixing the rigid plate and the right end of the web plate by repeating the step.
Step S5: and a soft steel rod penetrates through a round hole A and a round hole B which are positioned between the web plate and the rigid plate and are positioned at the coaxial position, and two ends of the soft steel rod are respectively fastened and fixed by nuts B.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. An assembled mild steel-friction composite displacement type damper is characterized in that: the connecting piece comprises two rigid plates symmetrically arranged at the front side and the rear side of the web plate, friction plates are arranged between the upper end and the lower end of the rigid plates and the web plate, the two rigid plates, the web plate and the friction plates are penetrated and locked through high-strength bolts, a plurality of soft steel bars are arranged at the outer side of the friction plates, and the soft steel bars longitudinally penetrate through the two rigid plates and the web plate;
the web plate is provided with bolt holes A corresponding to the positions of the two connecting pieces, the rigid plate is provided with bolt holes B, the middle part of the friction plate is provided with a bolt hole C, and the bolt holes A, the bolt holes B and the bolt holes C are coaxially arranged; the high-strength bolt penetrates through the bolt hole A, the bolt hole B and the bolt hole C and then is matched and locked with the nut A;
a plurality of soft steel bars are uniformly distributed in a ring shape around the axis of the friction plate; the web plate is provided with round holes A corresponding to the positions of the soft steel bars, the rigid plate is provided with round holes B corresponding to the positions of the soft steel bars, the round holes A and the round holes B are coaxially arranged, and the soft steel bars penetrate through the round holes A and the round holes B;
the front side and the rear side of the web plate, the rigid plate and the friction plate are subjected to sand blasting.
2. The fabricated mild steel-friction composite displacement damper of claim 1, wherein: the flange plate is characterized in that a plurality of flange plate bolt holes distributed along the transverse direction are symmetrically formed in the front end and the rear end of the flange plate, the flange plate penetrates through the flange plate bolt holes along the vertical direction, and the flange plate is fixed with a building member or an inclined strut through high-strength bolts penetrating through the flange plate bolt holes.
3. The fabricated mild steel-friction composite displacement damper of claim 1, wherein: and a plurality of stiffening ribs which are distributed side by side along the transverse direction are respectively arranged between the front side surface, the rear side surface and the flange plate of the web plate.
4. The fabricated mild steel-friction composite displacement damper of claim 1, wherein: the aperture of the bolt hole A is 5-20mm larger than the diameter of the high-strength bolt.
5. The fabricated mild steel-friction composite displacement damper of claim 1, wherein: external threads are respectively arranged on the outer walls of the front end and the rear end of the soft steel rod, and the soft steel rod penetrates through the round hole A and the round hole B and is locked and fixed through a nut B matched with the external threads.
6. The fabricated mild steel-friction composite displacement damper of claim 1, wherein: the diameter of the friction plate is at least 2cm smaller than the distance from the center of the bolt hole A to the center of the round hole A.
7. The assembling method of the assembled mild steel-friction composite displacement damper is characterized by comprising the following steps of: comprising the use of the fabricated mild steel-friction composite displacement damper according to any one of claims 1 to 6, comprising the steps of:
step S1: the method comprises the steps of prefabricating a top plate, a bottom plate, a friction plate, a rigid plate, a soft steel rod and a high-strength bolt which are matched in size;
step S2: fixing the top plate and the horizontal building member or diagonal brace by using a high-strength bolt; fixing the bottom plate and the horizontal building component or diagonal brace by using high-strength bolts;
step S3: respectively placing a friction plate on the front side and the rear side of each bolt hole A on the web plates of the top plate and the bottom plate, and penetrating a high-strength bolt between the friction plates and the web plates positioned on the front side and the rear side;
step S4: respectively placing a rigid plate on the front side and the rear side of two high-strength bolts positioned on the same vertical plane, passing through bolt holes B on the rigid plates through the high-strength bolts, placing the two rigid plates on the two sides of a friction plate, fastening and fixing the nuts A and the high-strength bolts, and applying a certain pretightening force;
step S5: and a soft steel rod penetrates through a round hole A and a round hole B which are positioned between the web plate and the rigid plate and are positioned at the coaxial position, and two ends of the soft steel rod are respectively fastened and fixed by nuts B.
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| CN201910418679.9A CN110029748B (en) | 2019-05-20 | 2019-05-20 | Assembled mild steel-friction composite displacement damper and assembling method thereof |
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| CN201910418679.9A CN110029748B (en) | 2019-05-20 | 2019-05-20 | Assembled mild steel-friction composite displacement damper and assembling method thereof |
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| CN110029748B true CN110029748B (en) | 2024-03-01 |
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| CN112853933B (en) * | 2021-02-24 | 2022-04-29 | 江南大学 | Segment prefabricated assembled concrete-filled steel tube pier with restorable function |
| CN113123463B (en) * | 2021-04-15 | 2022-11-29 | 重庆大学 | Steel frame capable of recovering energy consumption and enhancing energy consumption capacity |
| CN113123493B (en) * | 2021-04-15 | 2022-11-18 | 重庆大学 | Infilled wall connection mode with recoverable energy consumption function |
| CN113175002B (en) * | 2021-04-28 | 2022-01-11 | 西南交通大学 | Soft collision energy dissipation device |
| CN114809767A (en) * | 2022-04-29 | 2022-07-29 | 东南大学 | Displacement amplification type mild steel damper |
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|---|---|---|---|---|
| JP2005172030A (en) * | 2003-12-08 | 2005-06-30 | Takenaka Komuten Co Ltd | Friction damper |
| JP2009068668A (en) * | 2007-09-18 | 2009-04-02 | Kawaguchi Metal Industries Co Ltd | Friction damper |
| CN103541452A (en) * | 2013-09-22 | 2014-01-29 | 沈阳建筑大学 | Mild steel and friction damper |
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