CN114150913B - Self-adaptive friction energy dissipation cantilever system for super high-rise building structure for resisting multiple catastrophes - Google Patents
Self-adaptive friction energy dissipation cantilever system for super high-rise building structure for resisting multiple catastrophes Download PDFInfo
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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
- 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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Abstract
The invention discloses a self-adaptive friction energy dissipation arm extension system for a super high-rise building structure for resisting multiple catastrophes, which comprises the following components: the self-adaptive friction energy dissipation device comprises a building core tube, peripheral giant columns, an cantilever truss, supporting brackets and the self-adaptive friction energy dissipation device; one end of the cantilever truss is fixedly supported on a building core tube, and the other end of the cantilever truss is connected with a bracket arranged on the peripheral giant column through a self-adaptive friction energy dissipation device; the self-adaptive friction energy dissipation device is provided with a pair of external supports, a pair of middle sliding plates, a convex sliding block and four corresponding friction interfaces; and a long round hole is formed in the wing plate of the external support, and a split bolt is arranged to provide positive stress required by friction for the self-adaptive friction energy dissipation device. The invention can self-adaptively adjust the rigidity and the energy dissipation capacity of the self-adaptive vibration-damping device, and simultaneously meet the vibration-damping (vibration-damping) performance requirements of multiple catastrophe lower super high-rise building structures such as static average wind, pulsation wind/small vibration, medium vibration, large vibration and the like, thereby achieving the purpose of reducing the influence of multiple disasters.
Description
Technical Field
The invention belongs to the field of structural vibration control of constructional engineering technology, and particularly relates to a self-adaptive friction energy dissipation cantilever system for a super high-rise building structure for resisting multiple catastrophes.
Background
The core tube-cantilever-huge column structure system is a structure form widely applied in domestic and international super high-rise buildings at present. The core tube in the middle of the structure is connected with the giant columns arranged on the periphery through the cantilever trusses to form an anti-side force system (marked as a traditional cantilever system) of the structure, so that the anti-side rigidity of the structure can be obviously improved, and the deformation of the structure under wind load (especially under the action of average wind) can be effectively limited. However, the traditional arm-extending system only provides rigidity, lacks energy dissipation means, and has limited control effect on the structure under the power catastrophe effects of earthquake, pulsating wind and the like. Therefore, an energy dissipation arm stretching system is generated. The energy dissipation cantilever system is based on the deformation characteristic of the system, a damper is arranged at the joint of the giant column and the end part of the cantilever truss, and the larger vertical deformation concentrated between the giant column and the cantilever truss is utilized to fully exert the function of the damper and provide additional energy dissipation capability for the structural system.
On the one hand, the energy dissipation cantilever breaks through the rigid connection between the huge column and the cantilever truss in the traditional cantilever, replaces the huge column with a damper, and loses the static rigidity of the structure to a certain extent, so that the effect of controlling the static deformation of the structure under the action of average wind is reduced; on the other hand, the super high-rise building structure inevitably has risks of encountering earthquakes (small earthquake, medium earthquake and large earthquake) of different levels in the service period, and the energy dissipation capacity of the energy dissipation extending arm designed for a certain level earthquake cannot be adjusted in a self-adaptive manner, so that the effect of the energy dissipation extending arm is often difficult to be effectively exerted when other level earthquakes are resisted. Therefore, there is an urgent need in the engineering practice of current super high-rise building structures to combine structural static deformation and dynamic response and provide effective measures for adaptive energy consumption according to the catastrophe level.
Aiming at the problems, the invention combines the characteristics of the energy dissipation arm stretching system and provides the self-adaptive friction energy dissipation arm stretching system for the super high-rise building structure for resisting multiple disasters; the self-adaptive friction energy dissipation device is introduced between the end part of the cantilever truss and the peripheral giant column, so that the ultra-high-rise building structure can effectively resist multiple catastrophes such as average wind, pulsating wind, small shock, medium shock, large shock and the like, and the self-adaptive friction energy dissipation device is specifically expressed in the following steps: aiming at the effect of average wind, the end part of the cantilever in the self-adaptive friction energy dissipation cantilever system and the giant column do not slide, which is equivalent to the traditional cantilever in rigid connection, and provides additional static rigidity for the whole structure to reduce static deformation caused by average wind; when the self-adaptive friction energy dissipation arm stretching system encounters the action of pulsating wind or small shock, slight sliding is generated between the end part of the arm stretching and the giant column in the self-adaptive friction energy dissipation arm stretching system, and the small friction energy consumption is provided to consume the energy input to the whole structure by the pulsating wind and the small shock; when the self-adaptive friction energy dissipation arm stretching system encounters a middle earthquake, the self-adaptive friction energy dissipation arm stretching system can provide larger friction energy dissipation energy for consuming the middle earthquake; when encountering a major earthquake, the self-adaptive friction energy dissipation arm extension system can provide larger friction energy consumption to meet the energy consumption requirement of the major earthquake, thereby achieving the aim of resisting multiple disasters.
The information disclosed in the foregoing background section is only for enhancement of understanding of the general background of the invention and is not to be taken as an admission or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provide a self-adaptive friction energy dissipation arm extension system which can give consideration to structural static deformation and dynamic response for super high-rise building structures and provide self-adaptive energy consumption according to catastrophe levels.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a self-adaptive friction energy dissipation arm extension system for a super high-rise building structure for resisting multiple catastrophes, which comprises the following components: the self-adaptive friction energy dissipation device comprises a core tube, a giant column, an extension arm truss, a self-adaptive friction energy dissipation device and a supporting bracket; the method is characterized in that: the core tube is fixedly connected with one end of the cantilever truss, and the other end of the cantilever truss is connected with a supporting bracket fixedly supported on the giant column through the self-adaptive friction energy dissipation device.
Further, the boom truss includes: the upper chord member, the lower chord member, the middle chord member, the inclined web member and the vertical web member; the cantilever truss is rigidly connected with the core tube; the end head of the middle chord member of the cantilever truss is rigidly connected with the self-adaptive friction energy dissipation device.
Further, the giant column is rigidly connected with the supporting bracket; the supporting bracket is rigidly connected with the self-adaptive friction energy dissipation device; the support bracket should have sufficient rigidity and bearing capacity to ensure stability and safety of force transfer.
Further, the adaptive friction energy dissipating device comprises: the device comprises a first support, a second support, a first sliding disc, a second sliding disc, a convex sliding block and a split bolt; the first support is connected with the cantilever truss; the second support is connected with the supporting bracket.
Further, the curvature of the concave curved surface at the lower part of the first support of the self-adaptive friction energy dissipation device is consistent with that of the convex curved surface at the upper part of the first sliding disc; the curvature of the concave curved surface at the upper part of the second support is consistent with that of the convex curved surface at the lower part of the second sliding disc; the curvature of the concave curved surface at the lower part of the first sliding disc is consistent with that of the convex curved surface at the upper part of the sliding block; the curvature of the concave curved surface at the upper part of the second sliding disc is consistent with that of the convex curved surface at the lower part of the sliding block.
Further, a first friction surface is arranged between the first support of the self-adaptive friction energy dissipation device and the first sliding disc; a second friction surface is arranged between the second support and the second sliding disc; a third friction surface is arranged between the first sliding disk and the upper surface of the convex sliding block; a fourth friction surface is arranged between the second sliding disk and the lower surface of the convex sliding block; the third friction surface and the fourth friction surface have the same friction coefficient and are smaller than the friction coefficient of the second friction surface; the second friction surface has a coefficient of friction that is less than the coefficient of friction of the first friction surface.
Further, slotted holes are formed in flange plates of a first support and a second support of the self-adaptive friction energy dissipation device, and split bolts are arranged at corresponding positions of the slotted holes; the split bolt includes: nut, screw, and washer; the split bolt is required to exert pretightening force according to design requirements.
Further, the self-adaptive friction energy dissipation device can generate self-adaptive friction force and equivalent rigidity according to the deformation size, and the self-adaptive friction energy dissipation device is specifically expressed as follows: when the self-adaptive friction energy dissipation device receives smaller acting force, the self-adaptive friction energy dissipation device does not generate sliding deformation; as the acting force is continuously increased, sliding is firstly generated between the convex sliding block and the first sliding disk and the second sliding disk, and the sliding is accompanied with smaller friction force; as the external force increases further, sliding is then generated between the second support and the second sliding disk with a greater friction force; when the force is increased again, sliding is generated between the first support and the first sliding disk and a huge friction force is accompanied.
Furthermore, the self-adaptive friction energy dissipation arm extension system can resist multiple catastrophes, and is specifically expressed as follows: when the self-adaptive friction energy dissipation device does not slide under the action of average wind of wind load, the end part of the cantilever truss is equivalent to rigid connection with the giant column, and extra static rigidity is provided for the whole structure to resist the action of average wind; when the self-adaptive friction energy dissipation device slides and provides smaller friction force under the action of pulsating wind and small vibration of wind load, the end part of the cantilever truss and the giant column are deformed relatively, and the energy input to the whole structure is consumed by the small friction energy dissipation; when a middle earthquake occurs, the self-adaptive friction energy dissipation device slides greatly and provides larger friction force, and at the moment, the end part of the cantilever truss and the giant column deform relatively greatly, and the middle earthquake is consumed through larger friction energy consumption, so that the energy is input to the whole structure; when a large shock is encountered, the self-adaptive friction energy dissipation device slides and provides larger friction force, and at the moment, the end part of the cantilever truss and the giant column generate relatively larger deformation, and the energy input to the whole structure is consumed through larger friction energy consumption.
Compared with the prior art, the invention has the following characteristics:
the self-adaptive friction energy dissipation arm stretching system combines the characteristics of the energy dissipation arm stretching system, can give consideration to structural static deformation and dynamic response, provides self-adaptive energy consumption according to catastrophe levels, can simultaneously meet the vibration reduction (shock) performance requirements of multiple catastrophe lower super high-rise building structures such as static average wind, pulsation wind/small shock, medium shock, large shock and the like, and achieves the purpose of reducing the influence of multiple disasters. In addition, the invention can be integrated with the arm extending system of the super high-rise building structure, does not occupy redundant space, and is easy to install and maintain.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a self-adaptive friction energy dissipating boom system for a super high-rise building structure for resisting multiple disasters in a vertical arrangement of the building.
FIG. 2 is a schematic elevation view of an adaptive friction energy dissipating boom system for a super high-rise building structure for resisting multiple disasters according to the present invention when the boom truss ends are arranged at the junction of the boom truss ends and the giant columns.
Fig. 3 shows an exploded view of the various components of the adaptive friction dissipater of the present invention.
Fig. 4a shows a front view of the adaptive friction dissipater of the present invention.
Fig. 4b shows a left side view of the adaptive friction dissipater of the present invention.
Fig. 4c shows a top view of the adaptive friction dissipater of the present invention.
Fig. 5 shows three deformation modes of the adaptive friction energy dissipation device according to the present invention.
FIG. 6 is a graph showing force-displacement curves of three deformation modes of the adaptive friction energy dissipater of the present invention.
Description of the reference numerals
10 core tube, 20 giant column, 30 cantilever truss, 301 upper chord, 302 lower chord, 303 middle chord, 304 diagonal web, 305 vertical web, 40 self-adapting friction energy dissipation device, 401 first support, 402 second support, 403 first sliding disk, 404 second sliding disk, 405 convex sliding block, 413 first friction surface, 424 second friction surface, 435 third friction surface, 445 fourth friction surface, 46 split bolt, 461 nut, 462 screw, 463 gasket, 47 oblong hole, 50 support bracket.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms "top," "bottom," "upper," "lower," "one," "two," and the like are used herein for descriptive purposes only and not for purposes of limiting the scope of the invention, as the invention may be practiced without substantially altering the technology.
In view of the urgent need of the engineering practice of the super high-rise building structure at present for the structural static deformation and dynamic response, and the effective measures for providing self-adaptive energy consumption according to the catastrophe level, the invention combines the characteristics of the energy dissipation arm extension system, and provides a self-adaptive friction energy dissipation arm extension system capable of simultaneously meeting the vibration reduction (shock) performance requirements of the super high-rise building structure under multiple catastrophes such as static mean wind, pulsation wind/small shock, medium shock, large shock and the like, and the purpose of reducing the influence of multiple catastrophes is achieved through self-adaptive friction energy dissipation. The invention can be integrated with the arm extending system of the super high-rise building structure, does not occupy redundant space, and is easy to install and maintain.
The self-adaptive friction energy dissipation boom system for the super high-rise building structure for resisting multiple disasters provided by the invention is described in detail by specific embodiments.
As shown in fig. 1 to 6, the present embodiment provides an adaptive friction energy dissipation boom system for a super high-rise building structure for resisting multiple disasters, including: the self-adaptive friction energy dissipation device comprises a core tube 10, a giant column 20, an cantilever truss 30, a self-adaptive friction energy dissipation device 40 and a supporting bracket 50; the method is characterized in that: the core tube 10 is fixedly connected with one end of the cantilever truss 30, and the other end of the cantilever truss 30 is connected with the supporting bracket 50 fixedly supported on the giant column 20 through the self-adaptive friction energy dissipation device 40.
Further, the boom truss 30 includes: an upper chord 301, a lower chord 302, a middle chord 303, a diagonal web member 304, and a vertical web member 305; the cantilever truss 30 is rigidly connected with the core tube 10; the ends of the middle chord 303 of the boom truss 30 are rigidly connected to the adaptive friction dissipater 40.
Further, the giant column 20 is rigidly connected to the support bracket 50; the supporting bracket 50 is rigidly connected with the self-adaptive friction energy dissipation device 40; the support bracket 50 should have sufficient rigidity and load-bearing capacity to ensure stability and safety of the force transfer.
Further, the adaptive friction energy dissipating device 40 includes: a first support 401, a second support 402, a first sliding disk 403, a second sliding disk 404, a convex slider 405, and a split bolt 46; the first support 401 is connected with the cantilever truss 30; the second support 402 is connected to the support bracket 50; the two ends of the convex sliding block 405 are of a convex structure, the two ends of the convex sliding block 405 are respectively covered by a first sliding disk 403 and a second sliding disk 404, the first sliding disk 403 is supported by a first support 401, and the second sliding disk 404 is supported by a second support 402; the first support 401 and the second support 402 are fixedly connected through a split bolt 46.
Further, the curvature of the concave curved surface of the lower portion of the first support 401 of the adaptive friction energy dissipation device 40 is consistent with the curvature of the convex curved surface of the upper portion of the first sliding disc 403; the concave curved surface at the upper part of the second support 402 is consistent with the curvature of the convex curved surface at the lower part of the second sliding disk 404; the curvature of the concave curved surface of the lower part of the first sliding disc 403 is consistent with that of the convex curved surface of the upper part of the sliding block 405; the concave curved surface of the upper portion of the second sliding disk 404 is identical to the curvature of the convex curved surface of the lower portion of the sliding block 405.
Further, a first friction surface 413 is disposed between the first support 401 and the first sliding plate 403 of the adaptive friction energy dissipating device 40; a second friction surface 424 is disposed between the second support 402 and the second slider disk 404; a third friction surface 435 is provided between the first slider 403 and the upper surface of the convex slider 405; a fourth friction surface 445 is provided between the second slider 404 and the lower surface of the convex slider 405; the third friction surface 435 and the fourth friction surface 445 have the same friction coefficient and are smaller than the friction coefficient of the second friction surface 424; the second friction surface 424 has a coefficient of friction that is less than the coefficient of friction of the first friction surface 413.
Further, slotted holes 47 are formed on flange plates of the first support 401 and the second support 402 of the self-adaptive friction energy dissipation device 40, and split bolts 46 are arranged at corresponding positions of the slotted holes 47; the split bolt 46 includes: a nut 461, a screw 462, and a spacer 463; the split bolt 46 is required to be preloaded according to design requirements.
Further, the adaptive friction energy dissipation device 40 can generate adaptive friction force and equivalent stiffness according to the deformation, which is specifically expressed as follows: the adaptive friction dissipater 40 does not undergo sliding deformation when subjected to a small force; as the force increases, the convex slider 405 slides with the first sliding disk 403 and the second sliding disk 404 with smaller friction force; as the external force increases further, sliding is then generated between the second mount 402 and the second sliding disk 404 with a greater friction force; when the force is further increased, sliding occurs between the first support 401 and the first sliding plate 403 with a great friction force.
Furthermore, the self-adaptive friction energy dissipation arm extension system can resist multiple catastrophes, and is specifically expressed as follows: when the average wind action against wind load is performed, the self-adaptive friction energy dissipation device 40 does not slide, and at this time, the end of the outrigger truss 30 and the giant column 20 are in a rigid connection, so that additional static rigidity is provided for the whole structure to resist the average wind action; when the self-adaptive friction energy dissipation device 40 slides and provides smaller friction force under the action of the pulsating wind and small vibration of wind load, the end part of the cantilever truss 30 and the giant column 20 generate relative deformation at the moment, and the energy input to the whole structure is consumed by the small friction energy consumption; when a middle earthquake occurs, the self-adaptive friction energy dissipation device 40 slides greatly and provides a larger friction force, and at this time, the end part of the cantilever truss 30 and the giant column 20 deform relatively greatly, and the middle earthquake is consumed through the larger friction energy consumption to input energy to the whole structure; when a major shock is encountered, the adaptive friction energy dissipation device 40 slides and provides a greater friction force, and at this time, a relatively greater deformation is generated between the end of the outrigger truss 30 and the giant column 20, and the energy input to the whole structure is consumed by the major friction energy consumption.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (3)
1. The utility model provides a resist self-adaptation friction energy dissipation arm stretching system of super high-rise building structure of multiple catastrophe which characterized in that: comprising the following steps: the self-adaptive friction energy dissipation device comprises a core tube (10), a giant column (20), an cantilever truss (30), a self-adaptive friction energy dissipation device (40) and a supporting bracket (50); the core tube (10) is fixedly connected with one end of the cantilever truss (30), and the other end of the cantilever truss (30) is connected with the supporting bracket (50) fixedly supported on the giant column (20) through the self-adaptive friction energy dissipation device (40); a first friction surface (413) is arranged between a first support (401) and a first sliding disc (403) of the self-adaptive friction energy dissipation device (40); a second friction surface (424) is arranged between the second support (402) and the second sliding disk (404); a third friction surface (435) is arranged between the first sliding disk (403) and the upper surface of the convex slider (405); a fourth friction surface (445) is arranged between the second sliding disk (404) and the lower surface of the convex sliding block (405); the third friction surface (435) has the same coefficient of friction as the fourth friction surface (445) and is less than the coefficient of friction of the second friction surface (424); the second friction surface (424) has a coefficient of friction that is less than the coefficient of friction of the first friction surface (413); a slotted hole (47) is formed in a flange plate of a first support (401) and a flange plate of a second support (402) of the self-adaptive friction energy dissipation device (40), and a split bolt (46) is arranged at a corresponding position of the slotted hole (47); the split bolt (46) is required to exert pretightening force according to design requirements; the self-adaptive friction energy dissipation device (40) generates self-adaptive friction force and equivalent rigidity according to the deformation size, and is specifically expressed as follows: the self-adaptive friction energy dissipation device (40) does not generate sliding deformation when receiving small acting force; as the force increases, the convex slider (405) slides with the first sliding disk (403) and the second sliding disk (404) with smaller friction force; as the external force increases, sliding is then generated between the second support (402) and the second sliding disk (404) with an increased friction force; when the force is increased again, sliding is generated between the first support (401) and the first sliding disc (403) and the friction force is increased; the adaptive friction energy dissipating device (40) comprises: the device comprises a first support (401), a second support (402), a first sliding disc (403), a second sliding disc (404), a convex sliding block (405) and a split bolt (46); the first support (401) is connected with the cantilever truss (30); the second support (402) is connected with the supporting bracket (50); the two ends of the convex sliding block (405) are of a convex structure, the two ends of the convex sliding block (405) are respectively covered by a first sliding disc (403) and a second sliding disc (404), the first sliding disc (403) is supported by a first support (401), and the second sliding disc (404) is supported by a second support (402); the first support (401) and the second support (402) are fixedly connected through a split bolt (46);
the curvature of the concave curved surface of the lower part of the first support (401) of the self-adaptive friction energy dissipation device (40) is consistent with that of the convex curved surface of the upper part of the first sliding disc (403); the curvature of the concave curved surface at the upper part of the second support (402) is consistent with that of the convex curved surface at the lower part of the second sliding disc (404); the curvature of the concave curved surface at the lower part of the first sliding disc (403) is consistent with that of the convex curved surface at the upper part of the sliding block (405); the curvature of the concave curved surface at the upper part of the second sliding disc (404) is consistent with that of the convex curved surface at the lower part of the sliding block (405);
the self-adaptive friction energy dissipation arm extension system can resist multiple catastrophes, and is specifically expressed as follows: when the average wind for wind load acts, the self-adaptive friction energy dissipation device (40) does not slide, and at the moment, the end part of the cantilever truss (30) is equivalent to rigid connection with the giant column (20), so that additional static rigidity is provided for the whole structure to resist the average wind; when the self-adaptive friction energy dissipation device (40) slides and provides smaller friction force under the action of pulsating wind and small vibration of wind load, the end part of the cantilever truss (30) and the giant column (20) generate relative deformation at the moment, and the energy input to the whole structure is consumed by the small friction energy consumption; when a middle earthquake occurs, the self-adaptive friction energy dissipation device (40) slides greatly and provides a larger friction force, and at the moment, the end part of the cantilever truss (30) and the giant column (20) deform relatively greatly, and the middle earthquake is consumed through the larger friction energy dissipation to input energy to the whole structure; when a major shock is encountered, the self-adaptive friction energy dissipation device (40) slides and provides larger friction force, and at the moment, relatively larger deformation is generated between the end part of the cantilever truss (30) and the giant column (20), and the energy input to the whole structure is consumed by the major shock through larger friction energy dissipation.
2. The ultra-high rise building structure adaptive friction energy dissipating boom system resistant to multiple catastrophes of claim 1, wherein: the boom truss (30) includes: an upper chord (301), a lower chord (302), a middle chord (303), a diagonal web member (304), and a vertical web member (305); the cantilever truss (30) is rigidly connected with the core tube (10); the end head of the middle chord member (303) of the cantilever truss (30) is rigidly connected with the self-adaptive friction energy dissipation device (40); the upper chord member (301) is connected with the lower chord member (302) through a middle chord member (303), a diagonal web member (304) and a vertical web member (305).
3. The ultra-high rise building structure adaptive friction energy dissipating boom system resistant to multiple catastrophes of claim 2, wherein: the giant column (20) is rigidly connected with the supporting bracket (50); the supporting bracket (50) is rigidly connected with the self-adaptive friction energy dissipation device (40); the rigidity and bearing capacity of the supporting bracket (50) can ensure the stability and safety of force transmission.
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| CN202111482258.6A CN114150913B (en) | 2021-12-07 | 2021-12-07 | Self-adaptive friction energy dissipation cantilever system for super high-rise building structure for resisting multiple catastrophes |
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| CN202111482258.6A CN114150913B (en) | 2021-12-07 | 2021-12-07 | Self-adaptive friction energy dissipation cantilever system for super high-rise building structure for resisting multiple catastrophes |
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| CN112982672A (en) * | 2021-04-06 | 2021-06-18 | 北京市建筑设计研究院有限公司 | Damping energy-consuming type outrigger truss high-rise structure system |
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