CN113818584B - Assembled energy dissipation cantilever structure based on particle damping - Google Patents
Assembled energy dissipation cantilever structure based on particle damping Download PDFInfo
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- CN113818584B CN113818584B CN202111231804.9A CN202111231804A CN113818584B CN 113818584 B CN113818584 B CN 113818584B CN 202111231804 A CN202111231804 A CN 202111231804A CN 113818584 B CN113818584 B CN 113818584B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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
- E04H9/0237—Structural braces with damping devices
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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
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- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to an assembled energy dissipation outrigger structure based on particle damping, which comprises a damping hinge and a torsional particle damper between a core tube and a frame column, wherein second damping particles in the damping hinge mutually impact and rub to dissipate energy when the structure vibrates, and a damping steel plate also plays a damping role. When an earthquake or wind vibration occurs, the torsional particle damper enables the upper cylinder body inside the torsional particle damper to be twisted through the moving rod piece, the built-in first damping particles can play an energy dissipation and shock absorption role, the collision and friction of the first damping particles are aggravated through the arranged spring steel sheets, the anti-seismic or wind resistance capacity is improved, the energy consumption efficiency is increased, and the structure safety is ensured.
Description
Technical Field
The invention belongs to the technical field of earthquake resistance, energy dissipation and shock absorption of engineering structures, and particularly relates to an assembled energy dissipation cantilever structure based on particle damping.
Background
With the development of economic society and the acceleration of urbanization process, the frame core tube structure gradually becomes an important form of high-rise buildings, the anti-seismic and wind-resistant research on the frame core tube structure form is more and more emphasized by more people, the particle dampers are widely applied to the high-rise buildings due to the efficient energy consumption and damping performance of the structure, and at present, in order to improve the anti-seismic and wind-resistant performance of the structure, a large number of dampers are generally arranged, so that the manufacturing cost is improved, and meanwhile, the energy consumption efficiency is poor.
Disclosure of Invention
The invention aims to solve the problems and provide an assembled energy dissipation cantilever structure based on particle damping so as to improve the earthquake-resistant and wind-resistant efficiency of the structure.
The purpose of the invention is realized by the following technical scheme:
an assembled energy dissipation cantilever structure based on particle damping comprises a frame column, a core tube and a frame assembly connected between the frame column and the core tube, wherein one end of the frame assembly is fixedly connected with the core tube, the other end of the frame assembly is connected with the frame column through a damping hinge, and a torsional particle damper is arranged in the frame assembly.
The invention improves the cantilever structure of the frame core tube, and uses the damping hinge and the torsional particle damper for resisting earthquake and wind of the cantilever structure, the damping hinge is provided with particles and a damping steel plate for energy dissipation and damping, the torsional particle damper is designed to intensify the friction and collision of the damping particles, and is provided with an annular spring for energy dissipation, so that the efficiency of resisting earthquake and wind of the structure is improved.
Furthermore, the frame assembly comprises an upper chord and a lower chord which are arranged in parallel at intervals, a vertical support is connected between the upper chord and the lower chord, the end parts of the upper chord and the lower chord are connected with inclined supports, and an inverted V-shaped steel support is arranged at the upper part of the lower chord;
the torsional particle damper is fixedly arranged on the lower portion of the upper chord and is connected with the upper ends of the inverted V-shaped steel supports positioned on the two sides of the upper chord through the transmission connecting piece and the vertical supports.
Furthermore, a connecting block is arranged at the joint of the vertical support and the upper chord, and the torsional particle damper is connected with the connecting block.
Furthermore, the damping hinge comprises a constraint cylinder, a damping steel plate, a particle cavity and second damping particles, wherein the damping steel plate, the particle cavity and the second damping particles are arranged in the constraint cylinder,
the damping steel plate is respectively welded with the particle cavity and the constraint cylinder, and the particle cavity is internally provided with a partition plate which is filled with the second damping particles.
Further, the torsional particle damper comprises a shell, a base, an upper cylinder and a lower cylinder which are arranged in the shell and the base,
the lower barrel with the base welding, the setting that the upper barrel can rotate relatively is in barrel upper portion down, just be equipped with the damping granule in the upper barrel.
Further, the upper cylinder body is connected with the outside through a displacement amplification assembly, the displacement amplification assembly comprises a displacement amplification rod, a connecting member, a moving rod piece and a connecting support,
the connecting support is welded with the base, the connecting component is bolted with the displacement amplifying rod, the displacement amplifying rod is bolted with the connecting support, the displacement amplifying rod is bolted with the moving rod piece, and the moving rod piece is bolted with the upper barrel body.
Furthermore, the upper cylinder body comprises first damping particles, a spring steel sheet, an upper cylinder wall and a cylinder body connecting bolt, the spring steel sheet is welded inside the upper cylinder wall, the first damping particles are placed in the upper cylinder body, the friction and the impact of the first damping particles are aggravated under the action of the spring steel sheet, and the cylinder body connecting bolt is welded with the bottom of the upper cylinder body.
Further, the lower cylinder body comprises a lower cylinder wall, and an annular slide rail, a slide block and an annular spring which are arranged at the bottom end in the lower cylinder wall,
the annular slide rail is arranged at the bottom end of the lower cylinder wall through a limiting block, the slide block and the annular spring are sleeved on the annular slide rail, and the slide block is connected with one end of the annular spring.
Furthermore, the upper barrel body is clamped into the lower barrel body to be limited, the sliding block is inserted into a limiting hole reserved in the bottom of the upper barrel body, the sliding block moves along with the upper barrel body, and the annular spring stretches or compresses along with the movement of the sliding block.
Further, the shell comprises a first bolt connecting piece, a second bolt connecting piece and a reserved hole, the second bolt connecting piece is welded on the outer surface of the shell,
and a third bolt connecting piece is welded at the bottom of the base, the second bolt connecting piece is connected with the third bolt connecting piece through a bolt, and the first bolt connecting piece is bolted with the flange plate of the upper chord.
According to the invention, the damping hinge and the torsional particle damper are arranged on the extending arm structure of the frame core cylinder and used for resisting earthquake or wind of the structure, the damping hinge plays an energy consumption role when the structure vibrates, the second damping particles and the damping steel plate play a damping role, the torsional particle damper enables the inner upper cylinder body to twist through the motion rod piece, the first damping particles in the upper cylinder body mutually rub and collide, and the spring steel piece in the torsional particle damper aggravates the friction and collision of the first damping particles, so that the energy consumption capability is improved, meanwhile, the earthquake resistance is enhanced under the action of the annular spring, and the energy consumption efficiency is improved.
Compared with the traditional cantilever structure of the frame core tube, the invention has the advantages that:
(1) the spring steel sheet arranged in the torsional particle damper of the invention aggravates the friction and collision of the first damping particles, and the design improves the energy consumption capability.
(2) The damping hinge comprises a damping steel plate and second damping particles in the particle cavity, so that the deformation between the frame column and the core barrel can be coordinated while the hinge connection is formed, and the energy consumption and the damping of the structure are facilitated.
(3) The structural design of the invention realizes the functions of replaceable, energy-consuming and shock-absorbing, and improves the energy-consuming efficiency.
Drawings
FIG. 1 is a schematic diagram of a fabricated energy dissipation boom structure based on particle damping;
FIG. 2 is an internal schematic view of a damper hinge;
FIG. 3 is a three-dimensional schematic view of the housing and base of the torsional particle damper;
FIG. 4 is a front view of the interior of the torsional particle damper;
FIG. 5 is a top view of the interior of the torsional particle damper;
FIG. 6 is a three-dimensional schematic view of the interior of the upper and lower cylinders of the torsional particle damper;
FIG. 7 is a schematic bottom plan view of the upper barrel;
reference numbers in the figures: 1 is a frame column, 2 is a core cylinder, 3 is a shock-absorbing hinge, 4 is a torsional particle damper, 5 is an inverted V-shaped steel support, 6 is a diagonal support, 7 is a vertical support, 8 is an upper chord, 9 is a lower chord, 301 is a shock-absorbing steel plate, 302 is a second damping particle, 303 is a particle cavity, 304 is a constraint cylinder, 401 is a displacement amplification rod, 402 is a connecting member, 403 is a motion rod, 404 is a connecting support, 405 is an upper cylinder, 406 is a lower cylinder, 407 is a housing, 408 is a base, 4041 is a first damping particle, 4042 is a spring steel sheet, 4043 is an upper cylinder wall, 4044 is a cylinder connecting bolt, 4045 is a limiting hole, 4051 is an annular slide rail, 4052 is a slider, 4053 is an annular spring, 4054 is a lower cylinder wall, 4055 is a limiting block, 4071 is a first bolt connecting piece, 4072 is a second bolt connecting piece, 4073 is a reserved hole, and 4081 is a third bolt connecting piece.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Referring to fig. 1, an assembled energy dissipation cantilever structure based on particle damping comprises a frame column 1, a core tube 2 and a frame assembly connected between the frame column and the core tube 2, wherein one end of the frame assembly is fixedly connected with the core tube 2, the other end of the frame assembly is connected with the frame column 1 through a damping hinge 3, and a torsional particle damper 4 is arranged in the frame assembly.
The frame component comprises an upper chord 8 and a lower chord 9 which are arranged in parallel at intervals, a vertical support 7 is connected between the upper chord 8 and the lower chord 9, the end parts of the upper chord 8 and the lower chord 9 are connected with an inclined support 6, and an inverted V-shaped steel support 5 is arranged at the upper part of the lower chord 9; the torsional particle damper 4 is fixedly arranged at the lower part of the upper chord 8 and is connected with the upper ends of the inverted V-shaped steel supports 5 positioned at the two sides of the upper chord through a transmission connecting piece and the vertical support 7. The connecting block 10 is arranged at the connecting part of the vertical support 7 and the upper chord 8, and the torsional particle damper 4 is connected with the connecting block 10.
As shown in fig. 2, the damping hinge 3 includes a constraint cylinder 304, and a damping steel plate 301, a particle cavity 303, and a second damping particle 302 disposed in the constraint cylinder 304, wherein the damping steel plate 301 is welded to the particle cavity 303 and the constraint cylinder 304, a spacer is disposed in the particle cavity 303, and the second damping particle 302 is filled in the particle cavity 303.
As shown in fig. 3, the torsional particle damper 4 includes a housing 407, a base 408, an upper cylinder 405 and a lower cylinder 406 disposed in the housing 407 and the base 408, the lower cylinder 406 is welded to the base 408, the upper cylinder 405 is rotatably disposed on the upper portion of the lower cylinder 406, and damping particles are disposed in the upper cylinder 405. The outer casing 407 includes a first bolt connector 4071, a second bolt connector 4072 and a reserved hole 4073, the second bolt connector 4072 is welded to the outer surface of the outer casing 407, a third bolt connector 4081 is welded to the bottom of the base 408, the second bolt connector 4072 is connected to the third bolt connector 4081 through a bolt, and the first bolt connector 4071 is bolted to the flange plate of the upper chord 8.
As shown in fig. 4, the upper cylinder 405 is connected to the outside through a displacement amplifying assembly, the displacement amplifying assembly includes a displacement amplifying rod 401, a connecting member 402, a moving rod member 403, and a connecting support 404, the connecting support 404 is welded to the base 408, the connecting member 402 is bolted to the displacement amplifying rod 401, the displacement amplifying rod 401 is bolted to the connecting support 404, the displacement amplifying rod 401 is bolted to the moving rod member 403, and the moving rod member 403 is bolted to the upper cylinder 405.
As shown in fig. 6, the upper cylinder 405 includes first damping particles 4041, a spring steel sheet 4042, an upper cylinder wall 4043, and a cylinder connecting bolt 4044, the spring steel sheet 4042 is welded inside the upper cylinder wall 4043, the first damping particles 4041 are placed inside the upper cylinder 405, the friction and impact of the first damping particles 4041 are intensified by the spring steel sheet 4042, and the cylinder connecting bolt 4044 is welded to the bottom of the upper cylinder 405. Lower barrel 406 includes lower section of thick bamboo wall 4054 and locates annular slide rail 4051, slider 4052, the annular spring 4053 of the inside bottom of lower section of thick bamboo wall 4054, as figure 7, annular slide rail 4051 sets up in lower section of thick bamboo wall 4054 bottom through stopper 4055, and slider 4052 and annular spring 4053 overlap and establish on annular slide rail 4051, and slider 4052 is connected with the one end of annular spring 4053. The upper cylinder 405 is clamped into the lower cylinder 406 to be limited, the sliding block 4052 is inserted into a limiting hole 4045 reserved at the bottom of the upper cylinder 405, the sliding block 4052 moves along with the upper cylinder 405, and the annular spring 4053 moves along with the sliding block 4052 to be stretched or compressed.
Referring to fig. 4 and 5, when an earthquake or wind vibration occurs, the motion rod 403 starts to move to drive the displacement amplification rod 401 to amplify the motion displacement, so that the damper performs a good function, the displacement amplification rod 401 twists the upper cylinder 405, and the first damping particles 4041 and the spring steel sheets 4042 inside the upper cylinder 405 perform an energy dissipation function.
Referring to fig. 6 and 7, the first damping particles 4041 rub against each other, the spring steel sheet 4042 aggravates the friction collision of the first damping particles 4041, the energy consumption capability is improved, the upper cylinder 405 is twisted by the twisting particle damper 4 through the motion rod, the first damping particles 4041 in the upper cylinder 405 rub against each other, the spring steel sheet 4042 aggravates the friction collision of the first damping particles 4041, the energy consumption capability is improved, the sliding block 4052 is inserted into the limiting hole 4045, the shock resistance of the upper cylinder 405 is also enhanced by the action of the annular spring, and the energy consumption efficiency is improved.
It is worth explaining that, the invention resists earthquake and wind by arranging the damping hinge and the torsional particle damper in the cantilever structure, under the external excitation of earthquake, hurricane and the like, the damping steel plate of the damping hinge is compressed or extended, and the second damping particles in the particle cavity collide with each other and rub; the connecting component of the torsional particle damper moves, the displacement amplification rod is driven to amplify the displacement, the displacement amplification rod is connected with the movement rod, the movement rod enables the upper cylinder to rotate, the first damping particles inside the upper cylinder are subjected to friction collision under the action of rotation, the friction collision is aggravated under the action of the spring steel sheet, and the elastic restraint of the annular spring is also applied when the upper cylinder rotates. Therefore, the damping hinge can coordinate deformation between the frame column and the core barrel at the joint, the displacement amplification rod is arranged in the torsional particle damper to enable the damper to play a good role, the damper has a good energy dissipation function due to elastic constraint of the annular spring and the first damping particles of the upper barrel, and the spring steel sheet aggravates friction and collision of the first damping particles, so that the energy dissipation efficiency is improved.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (8)
1. An assembled energy dissipation cantilever structure based on particle damping comprises a frame column (1), a core tube (2) and a frame component connected between the frame column and the core tube, and is characterized in that one end of the frame component is fixedly connected with the core tube (2), the other end of the frame component is connected with the frame column (1) through a damping hinge (3), and a torsional particle damper (4) is arranged in the frame component;
the torsional particle damper (4) comprises a shell (407), a base (408), an upper cylinder (405) and a lower cylinder (406) which are arranged in the shell (407) and the base (408),
the lower cylinder (406) is welded with the base (408), the upper cylinder (405) is arranged on the upper part of the lower cylinder (406) in a relatively rotating manner, and damping particles are arranged in the upper cylinder (405);
the upper cylinder (405) comprises first damping particles (4041), a spring steel sheet (4042), an upper cylinder wall (4043) and a cylinder connecting bolt (4044),
the damping device is characterized in that the spring steel sheet (4042) is welded inside the upper cylinder wall (4043), the first damping particles (4041) are placed in the upper cylinder body (405), the friction and the impact of the first damping particles (4041) are aggravated under the action of the spring steel sheet (4042), and the cylinder body connecting bolt (4044) is welded with the bottom of the upper cylinder body (405).
2. An assembled energy dissipation boom structure based on particle damping as claimed in claim 1, wherein the frame component comprises an upper chord (8) and a lower chord (9) which are arranged in parallel at intervals up and down, a vertical brace (7) is connected between the upper chord (8) and the lower chord (9), inclined braces (6) are connected at the ends of the upper chord (8) and the lower chord (9), and an inverted V-shaped steel support (5) is arranged at the upper part of the lower chord (9);
the torsional particle damper (4) is fixedly arranged on the lower portion of the upper chord (8) and is connected with the upper ends of the inverted V-shaped steel supports (5) positioned on two sides of the upper chord and the vertical supports (7) through transmission connecting pieces.
3. An assembled energy dissipating boom structure based on particle damping according to claim 2 characterized in that the connection of the vertical braces (7) and the upper chord (8) is provided with a connecting block (10), and the torsional particle damper (4) is connected with the connecting block (10).
4. An assembled energy dissipating boom structure based on particle damping as claimed in claim 1, wherein the damping hinge (3) comprises a restraining cylinder (304) and a damping steel plate (301), a particle cavity (303) and a second damping particle (302) arranged in the restraining cylinder (304),
the damping steel plate (301) is respectively welded with the particle cavity (303) and the restraining cylinder (304), and a partition plate is arranged in the particle cavity (303) and is filled with the second damping particles (302).
5. An assembled energy dissipating boom structure based on particle damping according to claim 1, characterized in that the upper cylinder (405) is connected with the outside through a displacement amplifying assembly comprising a displacement amplifying rod (401), a connecting member (402), a moving rod member (403), a connecting support (404),
the connecting support (404) is welded with the base (408), the connecting member (402) is bolted with the displacement amplifying rod (401), the displacement amplifying rod (401) is bolted with the connecting support (404), the displacement amplifying rod (401) is bolted with the moving rod piece (403), and the moving rod piece (403) is bolted with the upper cylinder body (405).
6. The assembled energy dissipation boom structure based on particle damping as claimed in claim 1, wherein the lower cylinder (406) comprises a lower cylinder wall (4054), and a ring-shaped sliding rail (4051), a sliding block (4052) and a ring-shaped spring (4053) which are arranged at the bottom end of the inner part of the lower cylinder wall (4054),
the annular sliding rail (4051) is arranged at the bottom end of the lower cylinder wall (4054) through a limiting block (4055), the sliding block (4052) and the annular spring (4053) are sleeved on the annular sliding rail (4051), and the sliding block (4052) is connected with one end of the annular spring (4053).
7. An assembled energy dissipation boom structure based on particle damping as claimed in claim 6, wherein the upper cylinder (405) is clamped into the lower cylinder (406) to be limited, the sliding block (4052) is inserted into a limit hole (4045) reserved at the bottom of the upper cylinder (405), the sliding block (4052) moves with the upper cylinder (405), and the ring spring (4053) stretches or compresses along with the movement of the sliding block (4052).
8. An assembled energy dissipating boom structure based on particle damping according to claim 1 wherein the outer shell (407) comprises a first bolted connection (4071), a second bolted connection (4072) and a prepared hole (4073), the second bolted connection (4072) is welded to the outer surface of the outer shell (407),
and a third bolt connecting piece (4081) is welded at the bottom of the base (408), the second bolt connecting piece (4072) is connected with the third bolt connecting piece (4081) through a bolt, and the first bolt connecting piece (4071) is bolted with the flange plate of the upper chord (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111231804.9A CN113818584B (en) | 2021-10-22 | 2021-10-22 | Assembled energy dissipation cantilever structure based on particle damping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111231804.9A CN113818584B (en) | 2021-10-22 | 2021-10-22 | Assembled energy dissipation cantilever structure based on particle damping |
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| CN113818584A CN113818584A (en) | 2021-12-21 |
| CN113818584B true CN113818584B (en) | 2022-08-16 |
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2021
- 2021-10-22 CN CN202111231804.9A patent/CN113818584B/en active Active
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| KR20100045327A (en) * | 2008-10-23 | 2010-05-03 | 한국건설기술연구원 | Displacement-amplifying damping system |
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| WO2019172328A1 (en) * | 2018-03-07 | 2019-09-12 | Ntn株式会社 | Bearing vibration damping device |
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