CN113107104A - Improved energy dissipation cantilever control system - Google Patents
Improved energy dissipation cantilever control system Download PDFInfo
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- CN113107104A CN113107104A CN202110366276.1A CN202110366276A CN113107104A CN 113107104 A CN113107104 A CN 113107104A CN 202110366276 A CN202110366276 A CN 202110366276A CN 113107104 A CN113107104 A CN 113107104A
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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
- 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
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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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
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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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- 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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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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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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses an improved energy dissipation boom control system, wherein a main structure of the system comprises a core cylinder, a plurality of outer columns and a plurality of booms, wherein the core cylinder is vertically arranged, the outer columns are distributed on the periphery of the core cylinder, and the booms are sequentially arranged at intervals from top to bottom; a system substructure is arranged between two adjacent extending arms, a damper energy dissipation and shock absorption assembly is respectively arranged between the upper surface of each system substructure and the core cylinder, and a three-dimensional shock insulation sliding plate support is respectively arranged between the lower surface of each system substructure and the extending arms. The main structure of the system consists of rigidly connected extending arms, a core tube and outer columns, so that the structural integrity of the high-rise building can be ensured; the system substructure and the core tube are disconnected at intervals, and when the high-rise building is under the action of an earthquake, the system substructure and the core tube are relatively deformed, so that the requirement of a damper on large deformation difference can be met, and the damper can better play the role of energy dissipation and shock absorption; the three-dimensional shock insulation sliding plate support can realize vertical and horizontal shock insulation between the system substructure and the extending arm so as to further improve the shock absorption efficiency.
Description
Technical Field
The invention relates to the technical field of high-rise building structure shock absorption, in particular to an improved energy dissipation boom control system.
Background
Shock absorption of high-rise building structures has historically been a major concern for building researchers; in terms of the damping control mode of the current high-rise building structure, a passive control mode is mainly used. In the prior art, viscous dampers, viscoelastic and buckling restrained braces, metal dampers and the like are used as energy dissipation and shock absorption devices and are widely applied to high-rise building structures.
It should be noted that, for the boom system of the high-rise building structure, the following two types of damping schemes are mainly adopted, specifically:
the first type is an energy dissipation cantilever system, which firstly breaks the original connection between a cantilever and an outer column and then installs a vertical damper; however, the original connection between the extending arm and the outer column is disconnected, so that the original structural system of the high-rise building is changed, and the structural integrity of the high-rise building is sacrificed;
the second type is an extension arm system with an energy consumption shock absorption layer, and the extension arm system with the energy consumption shock absorption layer replaces a rigid support in the original extension arm in an energy consumption support (support plus damper) mode to form an energy consumption shock absorption layer; the assumption of the energy dissipation and shock absorption layer ensures the integrity of the high-rise building structure to a certain extent, but in the shock absorption effect, the arrangement mode of the damper has great influence, and the situation is not as good as that of an energy dissipation and extending arm system; even with the toggle-type amplification mechanism, the energy efficiency is only improved from the damper perspective, and the improvement is not significant compared to the double sprag arrangement. Therefore, it is still insufficient to improve the damping efficiency by only few energy dissipation damping layers.
Disclosure of Invention
The invention aims to provide an improved energy dissipation boom control system aiming at the defects of the prior art, and the improved energy dissipation boom control system has the advantages of novel design, good energy dissipation and shock absorption effects and good building structure integrity.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
An improved energy dissipation boom control system comprises a system main structure, wherein the system main structure comprises a core cylinder, a plurality of outer columns and a plurality of booms, the core cylinder is vertically arranged, the outer columns are distributed on the periphery of the core cylinder and are vertically arranged respectively, the booms are sequentially arranged at intervals from top to bottom, the outer columns are arranged at intervals with the core cylinder respectively, the booms are rigidly connected with the core cylinder respectively, and the outer columns are rigidly connected with the booms respectively;
a system substructure consisting of floors is arranged between two adjacent extending arms, each system substructure is respectively spaced from the core barrel, a damper energy dissipation and shock absorption assembly is respectively arranged between the upper surface of each system substructure and the core barrel, and a three-dimensional shock insulation sliding plate support is respectively arranged between the lower surface of each system substructure and the extending arms;
the three-dimensional shock insulation sliding plate support comprises an upper connecting plate connected with the lower surface of the system substructure, and a lower connecting plate which is positioned on the lower end side of the upper connecting plate and connected with the extending arm, wherein a vertical shock insulation assembly is arranged between the upper connecting plate and the lower connecting plate; the vertical shock insulation assembly comprises a cylindrical vertical shock insulation limiting cylinder, the lower end part of the vertical shock insulation limiting cylinder is screwed and fastened on the upper surface of the lower connecting plate, a limiting cylinder accommodating cavity with an opening facing downwards is formed in the core part of the vertical shock insulation limiting cylinder, and a limiting cylinder top through hole with an opening facing upwards and communicated with the limiting cylinder accommodating cavity is formed in the middle position of the upper surface of the vertical shock insulation limiting cylinder; the limiting cylinder accommodating cavity is internally embedded with a vertical shock insulation block, and a stiffening steel plate is positioned on the upper end side of the vertical shock insulation block and comprises a steel plate main body which is horizontally and transversely arranged, and a steel plate protruding part which is arranged in the middle position of the upper surface of the steel plate main body and protrudes and extends upwards; the vertical shock insulation blocks comprise a plurality of first steel plates which are sequentially arranged at intervals from top to bottom and are respectively arranged horizontally and transversely, a first rubber layer is arranged between every two adjacent first steel plates, and the vertical shock insulation blocks, the vertical shock insulation limiting cylinders and the stiffening steel plates form an integral structure after being integrally vulcanized; the periphery of the vertical shock insulation limiting cylinder is sleeved with an annular hoop in an annular shape and a spiral spring positioned on the lower end side of the annular hoop, the upper end part of the spiral spring is abutted against the annular hoop, and the lower end part of the spiral spring is abutted against the upper surface of the lower connecting plate; the horizontal shock insulation blocks are arranged between the annular hoop and the upper connecting plate and surround the periphery of the vertical shock insulation limiting cylinder, each horizontal shock insulation block comprises a plurality of second steel plates which are sequentially arranged from top to bottom at intervals and are horizontally and transversely arranged respectively, a second rubber layer is arranged between every two adjacent second steel plates, and the horizontal shock insulation blocks, the upper connecting plate and the annular hoop form an integral structure after being integrally vulcanized.
The annular hoop comprises a hoop vertical part which is in a circular ring shape and extends vertically, a hoop horizontal part which protrudes outwards horizontally and extends in a circular ring shape is arranged at the edge part of the upper end of the hoop vertical part, the hoop vertical part and the hoop horizontal part are of an integrated structure, the horizontal damping block is arranged between the hoop horizontal part and the upper connecting plate, and the upper end part of the spiral spring is abutted against the lower surface of the hoop horizontal part;
the side wall of the vertical shock insulation limiting cylinder comprises a limiting cylinder vertical part which extends vertically and a limiting cylinder conical part which is arranged at the upper end part of the limiting cylinder vertical part and is in a conical shape, and the outer diameter value of the limiting cylinder conical part is gradually reduced from bottom to top;
spacing section of thick bamboo vertical portion and the vertical portion interval arrangement of cuff have installed first viscoelastic material subassembly between spacing section of thick bamboo vertical portion and the vertical portion of cuff.
The first viscoelastic material assembly comprises an inner side transition steel plate and an outer side transition steel plate which are respectively in a ring shape and respectively extend vertically, the inner side transition steel plate is positioned on the inner side of the outer side transition steel plate, the inner side transition steel plate and the outer side transition steel plate are arranged at intervals, the inner side transition steel plate is installed at the vertical part of the limiting cylinder, and the outer side transition steel plate is installed at the vertical part of the hoop;
a first viscoelastic material layer is arranged between the inner side transition steel plate and the outer side transition steel plate and is respectively bonded with the outer circumferential surface of the inner side transition steel plate and the inner circumferential surface of the outer side transition steel plate.
The inner circumferential surface of the hoop vertical portion corresponds to the outer transition steel plate and is provided with a hoop groove which extends annularly along the inner circumferential surface of the hoop vertical portion, the height value of the hoop groove is equal to that of the outer transition steel plate, the outer transition steel plate is embedded into the hoop groove of the hoop vertical portion, and the outer transition steel plate is bonded and fixed in the hoop groove of the hoop vertical portion through glue.
The inner side transition steel plate is screwed and fixed on the outer circumferential surface of the vertical part of the limiting cylinder through a locking screw;
the lower end part of the inner side transition steel plate is provided with a rectangular through hole which is positioned below the first viscoelastic material layer and is in a rectangular shape corresponding to the locking screw, the rectangular through hole extends vertically, and the locking screw is inserted into the rectangular through hole of the inner side transition steel plate;
the outer circumference of the vertical part of the limiting cylinder is provided with a threaded hole of the limiting cylinder corresponding to the locking screw, and the locking screw is screwed in the threaded hole of the limiting cylinder of the vertical part of the limiting cylinder.
The damper energy dissipation and shock absorption assembly comprises four groups of damper groups which are uniformly distributed on the periphery of the core cylinder at intervals in a circumferential annular manner, and each damper group comprises two oblique dampers which are arranged in parallel at intervals and are respectively arranged in an inclined manner; the core barrel is provided with upper end fixed hinged seats corresponding to the oblique dampers respectively, the upper surface of the system substructure is provided with lower end fixed hinged seats corresponding to the oblique dampers respectively, the upper end parts of the oblique dampers are hinged with the corresponding upper end fixed hinged seats through pivots respectively, and the lower end parts of the oblique dampers are hinged with the corresponding lower end fixed hinged seats through pivots respectively.
Horizontal dampers which are horizontally and transversely arranged are respectively arranged between two adjacent damper groups, and two end parts of each horizontal damper are respectively hinged with the inclined dampers on the corresponding sides through first spherical hinge seats.
The core barrel is provided with a first viscoelastic material component corresponding to each inclined damper, and the first viscoelastic material component is positioned between the upper end hinge seat and the upper surface of the system substructure;
the second viscoelastic material component comprises an inner connecting plate and an outer connecting plate which are vertically arranged, the inner connecting plate is positioned on the inner side of the outer connecting plate, the inner connecting plate and the outer connecting plate are arranged at intervals, a second viscoelastic material layer is arranged between the inner connecting plate and the outer connecting plate, the second viscoelastic material layer is respectively bonded with the outer surface of the inner connecting plate and the inner surface of the outer connecting plate, and the inner connecting plate is fixedly arranged on the core barrel;
and a rigid connecting rod is arranged between the outer side connecting plate and the corresponding oblique damper, one end of the rigid connecting rod is hinged with the outer side connecting plate through a second spherical hinge seat, and the other end of the rigid connecting rod is hinged with the oblique damper through a second spherical hinge seat.
The horizontal dampers respectively comprise hollow damper shells, a core part of each damper shell is provided with a damping cavity which completely penetrates along the front-back direction, a front end piston rod and a rear end piston rod are embedded in the damping cavity of each damper shell, the front end piston rod is positioned on the front end side of the rear end piston rod, the front end piston rod and the rear end piston rod are arranged at intervals, the front end part of the front end piston rod extends to the front end side of each damper shell, and the rear end part of the movable piston rod extends to the rear end side of each damper shell;
a spring limiting piece positioned between the front end piston rod and the rear end piston rod is arranged in a damping cavity of the damper shell, a spring mounting groove is formed between the spring limiting piece and the inner wall of the damper, and a damping spring is embedded in the spring mounting groove; the rear end of front end piston rod is provided with and extends and stretches into the front end spring contact portion in the spring mounting groove towards the back, and the front end of rear end piston rod is provided with and extends and stretches into the rear end spring contact portion in the spring mounting groove towards the front, and damping spring is located between front end spring contact portion and the rear end spring contact portion, damping spring's front end portion and front end spring contact portion butt, damping spring's rear end portion and rear end spring contact portion butt.
The partition plate is a polytetrafluoroethylene plate and is mounted on the upper surface of the steel plate protruding portion in a threaded connection or bonding mode.
The invention has the beneficial effects that: the invention relates to an improved energy dissipation boom control system which comprises a system main structure, wherein the system main structure comprises a core cylinder, a plurality of outer columns and a plurality of booms, wherein the core cylinder is vertically arranged, the outer columns are distributed on the periphery of the core cylinder and are respectively vertically arranged, the booms are sequentially arranged at intervals from top to bottom, the outer columns are respectively arranged at intervals with the core cylinder, the booms are respectively and rigidly connected with the core cylinder, and the outer columns are respectively and rigidly connected with the booms; a system substructure consisting of floors is arranged between two adjacent extending arms, each system substructure is respectively spaced from the core barrel, a damper energy dissipation and shock absorption assembly is respectively arranged between the upper surface of each system substructure and the core barrel, and a three-dimensional shock insulation sliding plate support is respectively arranged between the lower surface of each system substructure and the extending arms; the three-dimensional shock insulation sliding plate support comprises an upper connecting plate connected with the lower surface of the system substructure, and a lower connecting plate which is positioned on the lower end side of the upper connecting plate and connected with the extending arm, wherein a vertical shock insulation assembly is arranged between the upper connecting plate and the lower connecting plate; the vertical shock insulation assembly comprises a cylindrical vertical shock insulation limiting cylinder, the lower end part of the vertical shock insulation limiting cylinder is screwed and fastened on the upper surface of the lower connecting plate, a limiting cylinder accommodating cavity with an opening facing downwards is formed in the core part of the vertical shock insulation limiting cylinder, and a limiting cylinder top through hole with an opening facing upwards and communicated with the limiting cylinder accommodating cavity is formed in the middle position of the upper surface of the vertical shock insulation limiting cylinder; the limiting cylinder accommodating cavity is internally embedded with a vertical shock insulation block, and a stiffening steel plate is positioned on the upper end side of the vertical shock insulation block and comprises a steel plate main body which is horizontally and transversely arranged, and a steel plate protruding part which is arranged in the middle position of the upper surface of the steel plate main body and protrudes and extends upwards; the vertical shock insulation blocks comprise a plurality of first steel plates which are sequentially arranged at intervals from top to bottom and are respectively arranged horizontally and transversely, a first rubber layer is arranged between every two adjacent first steel plates, and the vertical shock insulation blocks, the vertical shock insulation limiting cylinders and the stiffening steel plates form an integral structure after being integrally vulcanized; the periphery of the vertical shock insulation limiting cylinder is sleeved with an annular hoop in an annular shape and a spiral spring positioned on the lower end side of the annular hoop, the upper end part of the spiral spring is abutted against the annular hoop, and the lower end part of the spiral spring is abutted against the upper surface of the lower connecting plate; the horizontal shock insulation blocks are arranged between the annular hoop and the upper connecting plate and surround the periphery of the vertical shock insulation limiting cylinder, each horizontal shock insulation block comprises a plurality of second steel plates which are sequentially arranged from top to bottom at intervals and are horizontally and transversely arranged respectively, a second rubber layer is arranged between every two adjacent second steel plates, and the horizontal shock insulation blocks, the upper connecting plate and the annular hoop form an integral structure after being integrally vulcanized. Through the structural design, the energy dissipation and shock absorption combined building has the advantages of novel design, good energy dissipation and shock absorption effects and good building structural integrity.
Drawings
The invention will be further described with reference to the drawings to which, however, the embodiments shown in the drawings do not constitute any limitation.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of another embodiment of the present invention.
Figure 3 is a schematic structural view of a damper energy dissipating shock absorbing assembly of the present invention.
Fig. 4 is a schematic structural view of the horizontal damper of the present invention.
FIG. 5 is a schematic structural view of the three-dimensional shock-insulation skateboard support of the present invention.
FIG. 6 is a partially enlarged schematic view of the three-dimensional shock-isolated slide plate support of the present invention.
FIG. 7 is a schematic structural view of the three-dimensional shock-insulation skateboard support of the present invention when an earthquake occurs.
1-System Main Structure 11-core tube
12-outer column 13-extending arm
2-system substructure 3-damper energy dissipation and shock absorption component
31-damper group 311-oblique damper
321-upper end fixed hinge seat 322-lower end fixed hinge seat
33-horizontal damper 331-damper housing
3311 damping chamber 332 front end piston rod
3321 front spring contact 333 rear piston rod
3331 rear spring contact 334 spring stop
335 spring mounting groove 336 damping spring
34-first spherical hinge seat 35-second viscoelastic material component
351-inner connecting plate 352-outer connecting plate
353-second layer of viscoelastic material 354-rigid linkage
355-second spherical hinged seat 4-three-dimensional shock insulation sliding plate support
41-upper connecting plate 42-lower connecting plate
43-vertical shock insulation assembly 431-vertical shock insulation limiting cylinder
4311-spacing cylinder containing chamber 4312-spacing cylinder top through hole
4313-vertical part of limiting cylinder 43131-threaded hole of limiting cylinder
4314-limiting cylinder taper 432-vertical shock isolation block
4321 first steel plate 4322 first rubber layer
433 stiffening steel plate 4331 steel plate body
4332 steel plate projection 434 spacer
44-annular ferrule 441-ferrule vertical portion
4411 ferrule groove 442 ferrule horizontal portion
45-coil spring 46-horizontal shock isolation block
461-second steel plate 462-second rubber layer
47-first viscoelastic material component 471-inside transition steel plate
4711 rectangular through hole 472 outside transition steel plate
473 first viscoelastic material layer 48 locking screw.
Detailed Description
The present invention will be described below with reference to specific embodiments.
As shown in fig. 1 and 2, an improved energy dissipation boom control system includes a main system structure 1, where the main system structure 1 includes a core tube 11 vertically arranged, a plurality of outer columns 12 vertically arranged around the core tube 11, and a plurality of booms 13 sequentially arranged from top to bottom at intervals, where each outer column 12 is arranged at intervals with the core tube 11, each boom 13 is rigidly connected with the core tube 11, and each outer column 12 is rigidly connected with the boom 13.
Wherein, a system substructure 2 composed of floors is arranged between two adjacent extending arms 13, each system substructure 2 is respectively spaced from the core tube 11, a damper energy dissipation and shock absorption assembly 3 is respectively arranged between the upper surface of each system substructure 2 and the core tube 11, and a three-dimensional shock insulation sliding plate support 4 is respectively arranged between the lower surface of each system substructure 2 and the extending arms 13.
As shown in fig. 5, 6 and 7, the three-dimensional vibration-isolating sliding plate support 4 includes an upper connecting plate 41 connected to the lower surface of the system substructure 2, and a lower connecting plate 42 located at the lower end side of the upper connecting plate 41 and connected to the boom 13, and a vertical vibration-isolating assembly 43 is installed between the upper connecting plate 41 and the lower connecting plate 42; the vertical shock insulation assembly 43 comprises a cylindrical vertical shock insulation limiting cylinder 431, the lower end part of the vertical shock insulation limiting cylinder 431 is screwed and fastened on the upper surface of the lower connecting plate 42, a limiting cylinder accommodating cavity 4311 with an opening facing downwards is formed in the core part of the vertical shock insulation limiting cylinder 431, and a limiting cylinder top through hole 4312 with an opening facing upwards and communicated with the limiting cylinder accommodating cavity 4311 is formed in the middle position of the upper surface of the vertical shock insulation limiting cylinder 431; the vertical shock insulation block 432 and a stiffening steel plate 433 positioned on the upper end side of the vertical shock insulation block 432 are embedded in the limiting cylinder accommodating cavity 4311, the stiffening steel plate 433 comprises a steel plate main body 4331 which is horizontally and transversely arranged, and a steel plate bulge 4332 which is arranged in the middle of the upper surface of the steel plate main body 4331 and extends upwards in a protruding manner, the steel plate main body 4331 and the steel plate bulge 4332 are of an integral structure, the steel plate bulge 4332 of the stiffening steel plate 433 penetrates through the limiting cylinder top through hole 4312 from bottom to top, the upper end part of the steel plate bulge 4332 extends to the upper end side of the upper surface of the vertical shock insulation limiting cylinder 431, the upper surface of the steel plate bulge 4332 is provided with a spacing plate 434, and the lower surface of the upper connecting plate 41 is in; the vertical shock insulation block 432 comprises a plurality of first steel plates 4321 which are sequentially arranged from top to bottom at intervals and are horizontally and transversely arranged, a first rubber layer 4322 is arranged between every two adjacent first steel plates 4321, and the vertical shock insulation block 432, the vertical shock insulation limiting cylinder 431 and the stiffening steel plates 433 form an integral structure after being integrally vulcanized; the periphery of the vertical shock insulation limiting cylinder 431 is sleeved with an annular hoop 44 in an annular shape and a spiral spring 45 positioned on the lower end side of the annular hoop 44, the upper end of the spiral spring 45 is abutted against the annular hoop 44, and the lower end of the spiral spring 45 is abutted against the upper surface of the lower connecting plate 42; horizontal shock insulation blocks 46 surrounding the periphery of the vertical shock insulation limiting cylinder 431 are arranged between the annular hoop 44 and the upper connecting plate 41, each horizontal shock insulation block 46 comprises a plurality of second steel plates 461 which are sequentially arranged from top to bottom at intervals and are horizontally and transversely arranged, a second rubber layer 462 is arranged between every two adjacent second steel plates 461, and the horizontal shock insulation blocks 46, the upper connecting plate 41 and the annular hoop 44 form an integral structure after being integrally vulcanized.
As explained above, the spacer 434 according to the present invention is preferably a teflon plate, and the spacer 434 is screwed or adhered to the upper surface of the steel plate projection 4332.
The system main structure 1 of the invention consists of an extension arm 13, a core tube 11 and an outer column 12, and the extension arm 13, the core tube 11 and the outer column 12 are rigidly connected to form an integral structure, thereby effectively ensuring the integrity of a high-rise building structure.
In addition, the system substructure 2 of the invention is separated from the core tube 11, namely the system substructure 2 forms a substructure of a high-rise building structure cantilever 13 system; when the high-rise building is under the earthquake action, the system substructure 2 and the core tube 11 have larger relative deformation, and then the requirement of larger deformation difference of the damper can be met, so that the damper can better play the energy dissipation and shock absorption functions.
Also, with the spacer skate mount of the present invention, the load of the superstructure substructure 2 is borne entirely by the vertical seismic isolation assemblies 43, and under the load of the superstructure, the coil springs 45 are in compression and the horizontal seismic isolation blocks 46 bear a small amount of load. When a horizontal earthquake occurs, the upper connecting plate 41 can horizontally and freely slide on the polytetrafluoroethylene plate to drive the rubber part of the horizontal shock insulation block 46 to generate shearing deformation, the horizontal shearing deformation generated by the horizontal shock insulation block 46 can reduce the transmission of earthquake energy to the upper structure, and meanwhile, the laminated rubber ring structure of the horizontal shock insulation block 46 can endow the upper connecting plate 41 with resetting capability, so that the upper connecting plate 41 and the upper structure can reset after the earthquake is eliminated. In addition, when an earthquake vertical component occurs, the vertical shock insulation blocks 432 in the vertical shock insulation limiting cylinder 431 are low in rigidity and can avoid the vertical medium-high frequency component. Therefore, the three-dimensional shock insulation sliding plate support 4 can realize vertical and horizontal shock insulation between the system substructure 2 and the extending arm 13 so as to further improve the shock absorption efficiency.
By combining the above conditions, the invention has the advantages of novel design, good energy dissipation and shock absorption effects and good building structure integrity through the structural design.
As a preferred embodiment, as shown in fig. 5 to 7, the annular ferrule 44 includes a vertically extending ferrule vertical portion 441 having an annular shape, a ferrule horizontal portion 442 protruding horizontally outward and extending in an annular shape is provided at an upper end edge portion of the ferrule vertical portion 441, the ferrule vertical portion 441 and the ferrule horizontal portion 442 are integrated, a horizontal damper block is provided between the ferrule horizontal portion 442 and the upper connecting plate 41, and an upper end portion of the coil spring 45 abuts against a lower surface of the ferrule horizontal portion 442; the side wall of the vertical shock insulation limiting cylinder 431 comprises a limiting cylinder vertical part 4313 which extends vertically and a limiting cylinder conical part 4314 which is arranged at the upper end part of the limiting cylinder vertical part 4313 and is in a conical shape, and the outer diameter value of the limiting cylinder conical part 4314 is gradually reduced from bottom to top; the limiting cylinder vertical part 4313 and the ferrule vertical part 441 are arranged at intervals, and a first viscoelastic material assembly 47 is arranged between the limiting cylinder vertical part 4313 and the ferrule vertical part 441.
It should be explained that the first viscoelastic material component 47 includes an inner transition steel plate 471 and an outer transition steel plate 472 which are respectively annular and vertically extend, the inner transition steel plate 471 is located inside the outer transition steel plate 472, the inner transition steel plate 471 and the outer transition steel plate 472 are arranged at intervals, the inner transition steel plate 471 is installed on the vertical portion 4313 of the limiting cylinder, and the outer transition steel plate 472 is installed on the vertical portion 441 of the hoop; a first viscoelastic material layer 473 is disposed between the inside transition steel plate 471 and the outside transition steel plate 472, and the first viscoelastic material layer 473 is respectively bonded to the outer circumferential surface of the inside transition steel plate 471 and the inner circumferential surface of the outside transition steel plate 472.
The outer transition steel plate 472 of the present invention is mounted to the ferrule vertical portion 441 in the following structural form: the inner circumferential surface of the hoop vertical portion 441 corresponds to the outer transition steel plate 472 and is provided with a hoop groove 4411 which extends annularly along the inner circumferential surface of the hoop vertical portion 441, the height value of the hoop groove 4411 is equal to that of the outer transition steel plate 472, the outer transition steel plate 472 is embedded into the hoop groove 4411 of the hoop vertical portion 441, and the outer transition steel plate 472 is fixed in the hoop groove 4411 of the hoop vertical portion 441 through glue bonding.
For the vertical shock insulation limiting cylinder 431, as the side wall of the vertical shock insulation limiting cylinder 431 comprises a limiting cylinder vertical part 4313 and a limiting cylinder conical part 4314, the vertical shock insulation limiting cylinder 431 with the special shape design can enable the rubber part of the vertical shock insulation block 432 in the vertical shock insulation limiting cylinder 431 to be restrained by the inner wall of the vertical shock insulation limiting cylinder 431 and the first steel plates 4321, so that the rubber part of the vertical shock insulation block 432 is in a three-dimensional stress state, and the effects of improving the bearing capacity and the shock insulation performance can be achieved.
For the first viscoelastic material assembly 47 of the present invention, when there is a vertical earthquake component, the first viscoelastic material layer 473 can effectively dissipate the energy transmitted vertically, reduce the upward transmission of the earthquake energy, and further improve the vertical shock insulation performance.
As a preferred embodiment, as shown in fig. 6, the inside transition steel plate 471 is screwed and fastened to the outer circumferential surface of the vertical part 4313 of the limiting cylinder by a locking screw 48; the lower end of the inside transition steel plate 471 is provided with a rectangular through hole 4711 which is located below the first viscoelastic material layer 473 and is in a rectangular shape corresponding to the locking screw 48, the rectangular through hole 4711 extends vertically, the locking screw 48 is inserted into the rectangular through hole 4711 of the inside transition steel plate 471, the width of the rectangular through hole 4711 is equal to the outer diameter of the thread end of the locking screw 48, that is, when the inside transition steel plate 471 is fastened to the outer circumferential surface of the vertical part 4313 of the limiting barrel through the locking screw 48, horizontal displacement cannot occur between the inside transition steel plate 471 and the vertical part 4313 of the limiting barrel, so as to ensure the installation stability of the inside transition steel plate 471. Correspondingly, the outer circumferential surface of the vertical portion 4313 of the limiting cylinder is provided with a threaded hole 43131 of the limiting cylinder corresponding to the locking screw 48, and the locking screw 48 is screwed into the threaded hole 43131 of the vertical portion 4313 of the limiting cylinder.
In the assembly process of the first viscoelastic material layer 473, in order to reduce the adverse effect of the initial shearing deformation of the first viscoelastic material layer 473, after the first viscoelastic material layer 473 is bonded with the inside transition steel plate 471, the inside transition steel plate 471 is moved up and down and the initial deformation of the first viscoelastic material layer 473 is zero, and then the inside transition steel plate 471 is fastened to the outer circumferential surface of the vertical part 4313 of the limit cylinder through the locking screw 48, so that the inside transition steel plate 471 and the vertical shock insulation limit cylinder 431 are connected into a whole, and the purpose of reducing the initial deformation of the first viscoelastic material layer 473 is achieved.
As a preferred embodiment, as shown in fig. 1 to 3, the damper energy-dissipating shock-absorbing assembly 3 includes four sets of damper groups 31 uniformly distributed on the peripheral side of the core tube 11 in a circumferential ring shape at intervals, each damper group 31 includes two oblique dampers 311 which are parallel at intervals and are respectively arranged obliquely; the core barrel 11 is respectively provided with an upper end fixed hinge seat 321 corresponding to each oblique damper 311, the upper surface of the system substructure 2 is respectively provided with a lower end fixed hinge seat 322 corresponding to each oblique damper 311, the upper end of each oblique damper 311 is respectively hinged with the corresponding upper end fixed hinge seat 321 through a pivot, and the lower end of each oblique damper 311 is respectively hinged with the corresponding lower end fixed hinge seat 322 through a pivot.
In addition, horizontal dampers 33 are horizontally and transversely arranged between two adjacent damper groups 31, and two end parts of each horizontal damper 33 are hinged with the diagonal damper 311 on the corresponding side through first spherical hinge seats 34. For the horizontal damper 33 installed between the adjacent two damper groups 31, the horizontal damper 33 can effectively perform an energy-dissipating shock-absorbing function when a horizontal earthquake occurs.
As a preferred embodiment, as shown in fig. 3, the core barrel 11 is provided with a second viscoelastic material component 35 corresponding to each diagonal damper 311, and the first viscoelastic material component 47 is located between the upper hinge seat and the upper surface of the system substructure 2; the second viscoelastic material assembly 35 comprises an inner connecting plate 351 and an outer connecting plate 352 which are vertically arranged respectively, the inner connecting plate 351 is positioned on the inner side of the outer connecting plate 352, the inner connecting plate 351 and the outer connecting plate 352 are arranged at intervals, a second viscoelastic material layer 353 is arranged between the inner connecting plate 351 and the outer connecting plate 352, the second viscoelastic material layer 353 is respectively bonded with the outer surface of the inner connecting plate 351 and the inner surface of the outer connecting plate 352, and the inner connecting plate 351 is fixedly installed on the core barrel 11; a rigid link 354 is installed between the outer connecting plate 352 and the corresponding diagonal damper 311, one end of the rigid link 354 is hinged to the outer connecting plate 352 through a second spherical hinge seat 355, and the other end of the rigid link 354 is hinged to the diagonal damper 311 through a second spherical hinge seat 355.
For the second viscoelastic material assembly 35 of the present invention, when a vertical earthquake component occurs, the second viscoelastic material layer 353 can also effectively dissipate the energy transmitted vertically, so as to reduce the upward transmission of part of the earthquake energy, and further improve the energy dissipation and shock absorption effects.
As a preferred embodiment, as shown in fig. 4, each of the horizontal dampers 33 includes a damper housing 331 having a hollow shape, a damper chamber 3311 passing through the damper housing 331 in the front-rear direction is formed in a core portion thereof, a front end piston rod 332 and a rear end piston rod 333 are fitted into the damper chamber 3311 of the damper housing 331, the front end piston rod 332 is located on the front end side of the rear end piston rod 333, the front end piston rod 332 and the rear end piston rod 333 are arranged at an interval, the front end portion of the front end piston rod 332 extends to the front end side of the damper housing 331, and the rear end portion of the movable piston rod extends to the rear end side of the damper housing 331.
A spring limiting piece 334 positioned between the front end piston rod 332 and the rear end piston rod 333 is arranged in the damping cavity 3311 of the damper housing 331, a spring mounting groove 335 is formed between the spring limiting piece 334 and the inner wall of the damper, and a damping spring 336 is embedded in the spring mounting groove 335; the rear end of the front piston rod 332 is provided with a front spring contact portion 3321 extending rearward and extending into the spring mounting groove 335, the front end of the rear piston rod 333 is provided with a rear spring contact portion 3331 extending forward and extending into the spring mounting groove 335, the damping spring 336 is located between the front spring contact portion 3321 and the rear spring contact portion 3331, the front end of the damping spring 336 abuts against the front spring contact portion 3321, and the rear end of the damping spring 336 abuts against the rear spring contact portion 3331.
It should be explained that, for the horizontal damper 33 of the present invention, when the connection between two adjacent damper groups 31 is realized, the front end of the front end piston rod 332 of the horizontal damper 33 is hinged to the corresponding diagonal damper 311 through the first spherical hinge seat 34, and the rear end of the rear end piston rod 333 of the horizontal damper 33 is hinged to the corresponding diagonal damper 311 through the first spherical hinge seat 34. Preferably, the front end spring contact portion 3321 and the front end piston rod 332 are integrally formed, and the rear end spring contact portion 3331 and the rear end piston rod 333 are integrally formed.
For the structure of the horizontal damper 33, it has the advantages of convenient assembly and easy construction.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. An improvement type energy dissipation is stretched arm control system which characterized in that: the system comprises a system main structure (1), wherein the system main structure (1) comprises a core cylinder (11) which is vertically arranged, a plurality of outer columns (12) which are distributed on the periphery of the core cylinder (11) and are vertically arranged respectively, and a plurality of extending arms (13) which are sequentially arranged from top to bottom at intervals, each outer column (12) is arranged with the core cylinder (11) at intervals respectively, each extending arm (13) is rigidly connected with the core cylinder (11) respectively, and each outer column (12) is rigidly connected with the extending arm (13) respectively;
a system substructure (2) consisting of floors is arranged between two adjacent extending arms (13), each system substructure (2) is respectively spaced from the core barrel (11), a damper energy dissipation and shock absorption assembly (3) is respectively arranged between the upper surface of each system substructure (2) and the core barrel (11), and a three-dimensional shock insulation sliding plate support (4) is respectively arranged between the lower surface of each system substructure (2) and the extending arms (13);
the three-dimensional shock insulation sliding plate support (4) comprises an upper connecting plate (41) connected with the lower surface of the system substructure (2) and a lower connecting plate (42) located on the lower end side of the upper connecting plate (41) and connected with the extending arm (13), wherein a vertical shock insulation assembly (43) is arranged between the upper connecting plate (41) and the lower connecting plate (42); the vertical shock insulation assembly (43) comprises a cylindrical vertical shock insulation limiting cylinder (431), the lower end part of the vertical shock insulation limiting cylinder (431) is screwed and fastened on the upper surface of the lower connecting plate (42), a limiting cylinder accommodating cavity (4311) with an opening facing downwards is formed in the core part of the vertical shock insulation limiting cylinder (431), and a limiting cylinder top through hole (4312) which is opened facing upwards and is communicated with the limiting cylinder accommodating cavity (4311) is formed in the middle position of the upper surface of the vertical shock insulation limiting cylinder (431); the vertical shock insulation block (432) is embedded in the limiting cylinder accommodating cavity (4311), and the stiffening steel plate (433) is positioned on the upper end side of the vertical shock insulation block (432), the stiffening steel plate (433) comprises a steel plate main body (4331) which is horizontally and transversely arranged, and a steel plate protruding portion (4332) which is arranged in the middle of the upper surface of the steel plate main body (4331) and protrudes upwards, the steel plate main body (4331) and the steel plate protruding portion (4332) are of an integrated structure, the steel plate protruding portion (4332) of the stiffening steel plate (433) penetrates through a limiting cylinder top through hole (4312) from bottom to top, the upper end portion of the steel plate protruding portion (4332) extends to the upper end side of the upper surface of the vertical shock insulation limiting cylinder (431), a spacing plate (434) is arranged on the upper surface of the steel plate protruding portion (4332), and the lower surface of the upper connecting plate (41); the vertical shock insulation block (432) comprises a plurality of first steel plates (4321) which are sequentially arranged from top to bottom at intervals and are horizontally and transversely arranged, a first rubber layer (4322) is arranged between every two adjacent first steel plates (4321), and the vertical shock insulation block (432), the vertical shock insulation limiting cylinder (431) and the stiffening steel plate (433) form an integral structure after being integrally vulcanized; the periphery of the vertical shock insulation limiting cylinder (431) is sleeved with an annular hoop (44) in an annular shape and a spiral spring (45) positioned on the lower end side of the annular hoop (44), the upper end of the spiral spring (45) is abutted against the annular hoop (44), and the lower end of the spiral spring (45) is abutted against the upper surface of the lower connecting plate (42); horizontal shock insulation blocks (46) surrounding the periphery of the vertical shock insulation limiting cylinder (431) are arranged between the annular hoop (44) and the upper connecting plate (41), each horizontal shock insulation block (46) comprises a plurality of second steel plates (461) which are sequentially arranged at intervals from top to bottom and horizontally and transversely arranged respectively, a second rubber layer (462) is arranged between every two adjacent second steel plates (461), and the horizontal shock insulation blocks (46), the upper connecting plate (41) and the annular hoop (44) form an integral structure after being integrally vulcanized.
2. An improved energy dissipating boom control system as claimed in claim 1, wherein: the annular hoop (44) comprises a hoop vertical part (441) which is in a circular ring shape and extends vertically, a hoop horizontal part (442) which protrudes outwards horizontally and extends in a circular ring shape is arranged at the upper end edge part of the hoop vertical part (441), the hoop vertical part (441) and the hoop horizontal part (442) are of an integral structure, the horizontal damping block is arranged between the hoop horizontal part (442) and the upper connecting plate (41), and the upper end part of the spiral spring (45) is abutted to the lower surface of the hoop horizontal part (442);
the side wall of the vertical shock insulation limiting cylinder (431) comprises a limiting cylinder vertical part (4313) which extends vertically and a limiting cylinder conical part (4314) which is arranged at the upper end part of the limiting cylinder vertical part (4313) and is in a conical shape, and the outer diameter value of the limiting cylinder conical part (4314) is gradually reduced from bottom to top;
the limiting cylinder vertical part (4313) and the hoop vertical part (441) are arranged at intervals, and a first viscoelastic material assembly (47) is arranged between the limiting cylinder vertical part (4313) and the hoop vertical part (441).
3. An improved energy dissipating boom control system as claimed in claim 2, wherein: the first viscoelastic material assembly (47) comprises an inner transition steel plate (471) and an outer transition steel plate (472) which are respectively annular and vertically extend, the inner transition steel plate (471) is located on the inner side of the outer transition steel plate (472), the inner transition steel plate (471) and the outer transition steel plate (472) are arranged at intervals, the inner transition steel plate (471) is installed on the vertical portion (4313) of the limiting barrel, and the outer transition steel plate (472) is installed on the vertical portion (441) of the hoop;
a first viscoelastic material layer (473) is arranged between the inner transition steel plate (471) and the outer transition steel plate (472), and the first viscoelastic material layer (473) is respectively bonded with the outer circumferential surface of the inner transition steel plate (471) and the inner circumferential surface of the outer transition steel plate (472).
4. An improved energy dissipating boom control system as claimed in claim 3, wherein: the inner circumferential surface of the hoop vertical portion (441) corresponds to the outer transition steel plate (472) and is provided with a hoop groove (4411) which extends annularly along the inner circumferential surface of the hoop vertical portion (441), the height value of the hoop groove (4411) is equal to that of the outer transition steel plate (472), the outer transition steel plate (472) is embedded into the hoop groove (4411) of the hoop vertical portion (441), and the outer transition steel plate (472) is bonded and fixed in the hoop groove (4411) of the hoop vertical portion (441) through glue.
5. An improved energy dissipating boom control system as claimed in claim 3, wherein: the inner side transition steel plate (471) is screwed and fastened on the outer circumferential surface of the vertical part (4313) of the limiting cylinder through a locking screw (48);
the lower end part of the inner side transition steel plate (471) is provided with a rectangular through hole (4711) which is positioned below the first viscoelastic material layer (473) and is in a rectangular shape corresponding to the locking screw (48), the rectangular through hole (4711) extends vertically, and the locking screw (48) is inserted into the rectangular through hole (4711) of the inner side transition steel plate (471);
the outer circumferential surface of the vertical part (4313) of the limiting cylinder is provided with a threaded hole (43131) of the limiting cylinder corresponding to the locking screw (48), and the locking screw (48) is screwed in the threaded hole (43131) of the limiting cylinder of the vertical part (4313) of the limiting cylinder.
6. An improved energy dissipating boom control system as claimed in claim 1, wherein: the damper energy dissipation and shock absorption assembly (3) comprises four groups of damper groups (31) which are uniformly distributed on the peripheral side of the core cylinder (11) at intervals in a circumferential ring shape, and each damper group (31) comprises two oblique dampers (311) which are arranged in parallel at intervals and are respectively arranged in an inclined manner; the core barrel (11) is provided with upper end fixed hinged seats (321) corresponding to the oblique dampers (311), the upper surface of the system substructure (2) is provided with lower end fixed hinged seats (322) corresponding to the oblique dampers (311), the upper end parts of the oblique dampers (311) are hinged with the corresponding upper end fixed hinged seats (321) through pivots, and the lower end parts of the oblique dampers (311) are hinged with the corresponding lower end fixed hinged seats (322) through pivots.
7. An improved energy dissipating boom control system as claimed in claim 6, wherein: horizontal dampers (33) which are horizontally and transversely arranged are respectively arranged between two adjacent damper groups (31), and two end parts of each horizontal damper (33) are respectively hinged with the inclined damper (311) on the corresponding side through a first spherical hinge seat (34).
8. An improved energy dissipating boom control system as claimed in claim 6, wherein: the core barrel (11) is respectively provided with a second viscoelastic material component (35) corresponding to each oblique damper (311), and the first viscoelastic material component (47) is positioned between the upper end hinged seat and the upper surface of the system substructure (2);
the second viscoelastic material assembly (35) comprises an inner connecting plate (351) and an outer connecting plate (352) which are vertically arranged respectively, the inner connecting plate (351) is located on the inner side of the outer connecting plate (352), the inner connecting plate (351) and the outer connecting plate (352) are arranged at intervals, a second viscoelastic material layer (353) is arranged between the inner connecting plate (351) and the outer connecting plate (352), the second viscoelastic material layer (353) is bonded with the outer surface of the inner connecting plate (351) and the inner surface of the outer connecting plate (352) respectively, and the inner connecting plate (351) is fixedly installed on the core barrel (11);
a rigid connecting rod (354) is arranged between the outer connecting plate (352) and the corresponding oblique damper (311), one end of the rigid connecting rod (354) is hinged with the outer connecting plate (352) through a second spherical hinge seat (355), and the other end of the rigid connecting rod (354) is hinged with the oblique damper (311) through the second spherical hinge seat (355).
9. An improved energy dissipating boom control system as claimed in claim 7, wherein: the horizontal damper (33) comprises a hollow damper shell (331) respectively, a damping cavity (3311) which completely penetrates along the front-back direction is formed in the core of the damper shell (331), a front end piston rod (332) and a rear end piston rod (333) are embedded in the damping cavity (3311) of the damper shell (331), the front end piston rod (332) is located on the front end side of the rear end piston rod (333), the front end piston rod (332) and the rear end piston rod (333) are arranged at intervals, the front end of the front end piston rod (332) extends to the front end side of the damper shell (331), and the rear end of the movable piston rod extends to the rear end side of the damper shell (331);
a spring limiting piece (334) positioned between a front end piston rod (332) and a rear end piston rod (333) is arranged in a damping cavity (3311) of a damper shell (331), a spring mounting groove (335) is formed between the spring limiting piece (334) and the inner wall of the damper, and a damping spring (336) is embedded in the spring mounting groove (335); the rear end portion of front end piston rod (332) is provided with and extends backward and stretches into front end spring contact portion (3321) in spring mounting groove (335), the front end portion of rear end piston rod (333) is provided with and extends forward and stretches into rear end spring contact portion (3331) in spring mounting groove (335), damping spring (336) are located between front end spring contact portion (3321) and rear end spring contact portion (3331), the front end portion and the front end spring contact portion (3321) butt of damping spring (336), the rear end portion and the rear end spring contact portion (3331) butt of damping spring (336).
10. An improved energy dissipating boom control system as claimed in any one of claims 1 to 9, wherein: the spacing plate (434) is a polytetrafluoroethylene plate, and the spacing plate (434) is mounted on the upper surface of the steel plate protruding portion (4332) in a threaded connection or bonding mode.
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| CN202110366276.1A CN113107104B (en) | 2021-04-06 | 2021-04-06 | Improved energy dissipation cantilever control system |
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| CN202110366276.1A CN113107104B (en) | 2021-04-06 | 2021-04-06 | Improved energy dissipation cantilever control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116815947A (en) * | 2023-08-31 | 2023-09-29 | 北京工业大学 | Passive reset rigidity energy dissipation arm extension system of high-rise building structure |
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| CN113107104B (en) | 2022-06-07 |
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