CN113374109A - Seesaw type amplification energy dissipation extension arm capable of preventing external instability - Google Patents
Seesaw type amplification energy dissipation extension arm capable of preventing external instability Download PDFInfo
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- CN113374109A CN113374109A CN202110769605.7A CN202110769605A CN113374109A CN 113374109 A CN113374109 A CN 113374109A CN 202110769605 A CN202110769605 A CN 202110769605A CN 113374109 A CN113374109 A CN 113374109A
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- 230000003321 amplification Effects 0.000 title claims abstract description 43
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000003190 viscoelastic substance Substances 0.000 claims description 10
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- 230000035939 shock Effects 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 14
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- 239000010410 layer Substances 0.000 description 19
- 238000013016 damping Methods 0.000 description 14
- 238000006073 displacement reaction Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
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- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
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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
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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 wane type amplification energy dissipation extension arm for preventing out-of-plane instability, which comprises: the cantilever truss, the outer frame column, the seesaw type amplifying device, the viscous fluid damper, the viscoelastic damper and the connecting steel plate for preventing the external instability; the wane type amplifying device is hinged with the outer frame column through a left hinge point, and the wane type amplifying device is hinged with the outrigger truss through a right hinge point; the seesaw type amplifying device is respectively hinged with one end of a viscous fluid damper through the upper hinge point and the lower hinge point, and the other end of the viscous fluid damper is hinged with the outrigger truss; prevent that off-plane unstability from connecting steel plate fixes the upper and lower both ends at the frame post to with viscoelastic damper fixed connection, viscoelastic damper and last pin roll fixed connection of pin joint or pin joint down. The invention has strong practicability, solves the key technical problem of energy dissipation boom extension with an amplifying device at present, and has better energy dissipation and shock absorption effects and better capability of coordinating the deformation of the inner cylinder and the outer frame than the prior technical scheme.
Description
Technical Field
The invention relates to the technical field of building energy dissipation, in particular to a seesaw type amplification energy dissipation extension arm capable of preventing external instability.
Background
The number of super high-rise buildings in China is at the forefront of the world, and meanwhile, the super high-rise buildings are a country with frequent earthquakes, and the earthquake-resistant design becomes a key link of the super high-rise building design. In the super high-rise, a refuge layer and an equipment layer are generally utilized to arrange a horizontal outrigger truss with high rigidity to coordinate deformation between a core cylinder and an outer frame, when a structure bears horizontal load, the core cylinder converts bending moment of the whole structure into axial force through the outrigger truss and transmits the axial force to a peripheral column, so that the outer frame and the core cylinder are stressed together to improve lateral stiffness, the section sizes of components such as a shear wall, a cylinder body and the column are reduced, and the use area is increased. For example, the China super (632m) in China super high-rise buildings Shanghai Central building, Shenzhen Ping' an international financial center (660m), and Beijing Zhongxian China honour (528m) all adopt a giant column-core tube-cantilever lateral force resisting system.
The energy dissipation and shock absorption technology is an efficient technical means for reducing earthquake damage and improving earthquake safety and structural earthquake-resistant toughness of super high-rise buildings. Along with the increase of the structure height of the super high-rise building, due to the influence of the whole bending deformation, the proportion occupied by the bending deformation of the upper floor is increased layer by layer, the proportion occupied by the harmful shearing deformation is reduced layer by layer, the effective deformation of the upper floor is reduced, and the energy consumption effect of the damping device for consuming energy by utilizing the shearing deformation between the horizontal layers is limited. The super high-rise building outrigger truss is matched with the stress between the outer frame and the inner cylinder, the vertical deformation difference generated under the action of a horizontal earthquake is large, the influence on the vertical safety of the whole structure after yielding is small, and the super high-rise building outrigger truss is an ideal energy consumption part.
The energy dissipation cantilever system is provided with the energy dissipation device between the cantilever and the outer frame column, so that compared with the traditional rigid cantilever system, the connecting effect is loosened, and the energy dissipation capability of the whole structure is improved. For example, viscous damping type energy dissipation outriggers, buckling restrained brace type energy dissipation outriggers and friction damper type energy dissipation outriggers proposed in recent years can effectively improve the energy consumption capability of a structural system, reduce earthquake response and ensure the safety of the structure.
The England ARUP engineering consultant company provides a novel energy dissipation cantilever damping system, wherein a viscous damper is vertically arranged at the joint of a cantilever and an outer frame column, and the viscous damper obtains larger output displacement by utilizing larger vertical deformation difference between the bending deformation of a core tube and the shearing deformation of the outer frame, so that the energy dissipation and damping effects of the damper are fully exerted. The deformation of the damper is far larger than the interlayer displacement of the structure, so that the problem that the damper cannot fully play a role under the condition of small interlayer displacement in the traditional arrangement mode is solved.
Because the boom-extending reinforcing layer is made of high-grade steel, the design and construction difficulty is high, the manufacturing cost is high, and the number of the boom-extending reinforcing layers arranged on the super high-rise is limited. In order to fully utilize the limited energy dissipation extending arms and furthest excavate the energy dissipation capacity of the energy dissipation extending arms, part of scholars introduce an amplifying device to amplify the deformation difference of the damper, and the more obvious damping effect can be achieved.
Zhouyu et al have proposed a viscous damper cantilever toggle type displacement amplification device, can make full use of the bending deformation and interlaminar shear deformation of the high-rise structure to increase the output displacement of the damper, the nominal displacement amplification factor of the damper can reach 3-5 times, have very good shock attenuation effects to the interlaminar displacement angle and interlaminar shear force of the structure.
Liu
The energy dissipation and shock absorption system has the advantages that the structural layer lateral movement is effectively amplified at two ends of the viscous damper, the energy consumption efficiency of the damper is fully exerted, the additional damping ratio of the structure under the action of wind load and earthquake is improved, and the shock absorption effect is better.
Xue builds yang etc. and proposes an outrigger truss energy dissipation shock mitigation system of T shape lever mechanism, through satisfying the length and height that T shape lever and attenuator are connected and outrigger truss height, outrigger truss upper chord member from the relation of core section of thick bamboo extension length, realize the amplification effect of outrigger lever and improve the power consumption efficiency of viscous damper.
Xue builds yang etc. and proposes an outrigger truss energy dissipation shock mitigation system of a bridging mechanism, through satisfying the length and angle that bridging and attenuator are connected and outrigger truss from the core section of thick bamboo stretch out length and the relation of outrigger truss height, realize the amplification of outrigger lever and improve the power consumption efficiency of viscous damper.
The larger the amplification factor of the outrigger truss energy dissipation damping system with the amplification device is, the better the damping effect obtained by the damper is, and the current research mainly focuses on how to obtain the larger amplification factor and neglects some key technical problems in the practical application thereof. The boom truss energy dissipation and shock absorption system with the amplifying device is applied to the super high-rise building, and the following problems need to be solved:
(1) the damper product types capable of meeting the requirements are few. Due to the amplification of the speed difference and deformation difference between the outer frame and the core barrel by the amplification device, when a rare earthquake or an unexpected extremely rare earthquake is encountered, the displacement of the amplified damper can enable the damper to exceed the limit capacity earlier, so that the performance of the damper is reduced or even the damper fails, and the structure is in danger of being damaged or even collapsing. The deformation of the amplifying device under the rare earthquake and the extremely rare earthquake can reach more than 100mm, the common energy dissipation and shock absorption device can not meet the requirement of large deformation, and only viscous fluid dampers, friction dampers and special viscoelastic dampers can meet the requirement. The viscous fluid damper is a speed-related damper, can provide a large stroke, has no rigidity under static load and has certain dynamic rigidity under earthquake; the friction damper is a displacement-related damper, and the rigidity after slipping is 0; viscoelastic dampers are associated with both velocity and displacement, and have a relatively high initial stiffness. At present, the existing boom truss energy dissipation and shock absorption system with an amplifying device generally adopts a viscous fluid damper, the viscous fluid damper has no rigidity under static load, the dynamic rigidity under an earthquake is smaller, and the energy dissipation capability of the system cannot be greatly increased along with the increase of earthquake intensity.
(2) The amplifier has concentrated stress and the out-of-plane stability can not be ensured. The reinforcing layer of the extending arm has high rigidity and high internal force, the amplifying device utilizes the lever principle to further amplify the stress of the device at the side with a short arm of force, so that stress concentration cannot be avoided, and the joint of the rod piece has a large gap, so that the out-of-plane deformation and even instability are easy to occur. The out-of-plane stability is an important guarantee that the amplifying device can work normally, and the existing outrigger truss energy dissipation and shock absorption system with the amplifying device does not consider the factors, so that the engineering application of the outrigger truss energy dissipation and shock absorption system is restricted.
Starting from the performance characteristics of the outrigger truss energy dissipation and shock absorption system with the amplifying device, the research results of the existing energy dissipation and shock absorption device are fully utilized, the system develops a system which has a response amplifying effect, can fully play the energy consumption capability of a damper under the action of small earthquakes and even extremely rare earthquakes, ensures that the performance of the damper does not lose efficacy, overcomes the defects of the existing response amplifying technology, and can provide technical support for the popularization and application of the outrigger truss energy dissipation and shock absorption system with the amplifying device in super high-rise buildings.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a seesaw type enlarged energy dissipation cantilever for preventing out-of-plane instability, and the seesaw type enlarged energy dissipation cantilever is used for solving the technical problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a wane type amplification energy dissipation extension arm for preventing out-of-plane instability, which comprises: the cantilever truss, the outer frame column, the seesaw type amplifying device, the viscous fluid damper, the viscoelastic damper and the connecting steel plate for preventing the external instability; wherein the content of the first and second substances,
the seesaw type amplification device is provided with an upper hinge point, a lower hinge point, a left hinge point and a right hinge point, the seesaw type amplification device is hinged with the outer frame column through the left hinge point, and the seesaw type amplification device is hinged with the outrigger truss through the right hinge point; the seesaw type amplifying device is respectively hinged with one end of the viscous fluid damper through the upper hinge point and the lower hinge point, and the other end of the viscous fluid damper is hinged with the outrigger truss; prevent that off-plane unstability from connecting steel plate fixes at the upper and lower both ends of outer frame post, and with viscoelastic damper fixed connection, viscoelastic damper and last pin roll fixed connection of pin joint or pin joint down.
As a further technical scheme, a left hinge point of the seesaw type amplification device is connected with an ear plate of the outer frame column through a pin shaft.
As a further technical scheme, the right hinged point of the seesaw type amplification device is connected with an ear plate of the outrigger truss through a pin shaft.
As a further technical scheme, the viscoelastic damper comprises two central connecting steel plates, two viscoelastic material layers are arranged in the middle and on two sides of the central connecting steel plates, and limiting steel plates are arranged on the outer sides of the viscoelastic material layers on two sides.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) the seesaw type amplification device amplifies the vertical deformation difference and the speed difference between the outer frame and the core barrel by utilizing a lever principle, the viscous fluid damper generates viscous damping force energy consumption by utilizing the amplified vertical speed difference, and the viscoelastic damper dissipates seismic energy more effectively by utilizing the amplified vertical displacement difference and the amplified vertical speed difference, so that the seismic response of the main structure is reduced.
(2) The viscoelastic damper meets the requirement of large deformation by adjusting the thickness of the viscoelastic material. Under the action of wind load, the initial rigidity of the viscoelastic damper plays a role in adjusting the stress between the outer frame and the core tube; the rigidity of the core tube is superposed with the dynamic rigidity of the viscous fluid damper under the action of an earthquake, and the deformation between the outer frame and the core tube is coordinated.
(3) Set up the viscoelastic damper and prevent the off-plate unstability steel sheet in the biggest position of warping of wane mechanism of amplification, steel sheet and viscoelastic damper combined action prevent wane side direction unstability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of an enlarged energy dissipating boom of the present invention with raised plates for preventing out-of-plane instability;
FIG. 2 is a side view of the raised plate type enlarged energy dissipating boom for preventing out-of-plane instability provided by the present invention;
FIG. 3 is a schematic view of the viscoelastic damper and the connecting steel plate for preventing out-of-plane instability according to the present invention;
fig. 4 is a schematic structural diagram of a seesaw type amplification device provided by the present invention;
fig. 5 is a schematic structural view of the viscoelastic damper according to the present invention.
Icon: 1-outrigger truss; 2-outer frame column; 3-a seesaw type amplifying device; 4-viscous fluid damper; 5-viscoelastic damper; 6-preventing the out-of-plane instability of the connecting steel plate; 7-core barrel shear wall; 8-center connecting steel plate; 9-a layer of viscoelastic material; 10-limiting steel plates.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1 to 4, the present embodiment provides a seesaw type enlarged energy dissipating boom for preventing out-of-plane instability, including: the cantilever truss comprises a cantilever truss 1, an outer frame column 2, a seesaw type amplifying device 3, a viscous fluid damper 4, a viscoelastic damper 5 and an external instability prevention connecting steel plate 6; wherein the content of the first and second substances,
the wane type amplification device 3 is provided with an upper hinge point, a lower hinge point, a left hinge point and a right hinge point, the wane type amplification device 3 is hinged with the outer frame column 2 through the left hinge point, and the wane type amplification device 3 is hinged with the outrigger truss 1 through the right hinge point; the seesaw type amplification device 3 is respectively hinged with one end of the viscous fluid damper 4 through the upper hinge point and the lower hinge point, and the other end of the viscous fluid damper 4 is hinged with the outrigger truss 1; the other side of the outrigger truss 1 is connected with a core tube shear wall 7; prevent that off-plane unstability from connecting steel sheet 6 fixes at the upper and lower both ends of frame post 2, and with 5 fixed connection of viscoelastic damper, 5 and last pin roll fixed connection of pin joint or lower pin joint of viscoelastic damper.
As a further technical solution, the left hinge point of the seesaw type amplification device 3 is connected with the ear plate of the outer frame column 2 through a pin shaft.
As a further technical scheme, the right hinge point of the wane type amplification device 3 is connected with the ear plate of the outrigger truss 1 through a pin shaft.
As a further technical scheme, the viscoelastic damper 5 comprises two central connecting steel plates 8, two viscoelastic material layers 9 are arranged in the middle and on two sides of the central connecting steel plates 8, and limiting steel plates 10 are arranged on the outer sides of the viscoelastic material layers on two sides.
In this embodiment, the working mechanism of the seesaw type amplified energy dissipation cantilever for preventing the out-of-plane instability is as follows:
referring to fig. 5, a deformation difference Δ is generated between the outer frame tube and the core tube by the action of the earthquake, and both the axial deformation of the viscous fluid damper and the shear deformation of the viscoelastic damper are f Δ due to the amplification of the amplification means, where f is an amplification factor f of 0.5l1/l2Is a moment arm l1And l2The larger the amplification factor is, the larger f delta is, and the more remarkable the energy dissipation effect of the viscous fluid damper and the viscoelastic damper is.
The wane formula amplification device 3 is connected with outrigger truss 1 and outer frame column 2 are articulated only through the round pin axle, and 4 damping force outputs of viscous fluid damper can reach hundreds of tons, and the off-plane stability is through viscoelastic damper 5 and prevent that off-plane unstability from connecting steel sheet 6 guarantees.
The viscous fluid damper 4 is a speed-dependent damper, consumes energy through a speed deformation difference at two ends, and the viscoelastic damper 5 is a speed and displacement dual-dependent damping device, wherein the viscoelastic damper 5 can meet a large deformation requirement by adjusting the thickness of a viscoelastic material layer 9 of the viscoelastic damper. The two shock absorption products have large deformation characteristics, can meet the large deformation requirements of rare earthquakes and extremely rare earthquakes, and form a composite shock absorption system.
In summary, by adopting the technical scheme, the invention has the following beneficial effects:
(1) compared with the traditional energy dissipation cantilever system with the wane type amplifying device, the invention adds the device for preventing the external instability, adopts the viscoelastic damper and the limiting steel plate as the limiting device, has high vertical bearing capacity outside the surface of the viscoelastic damper, and can ensure the external stability of the amplifying device even under the condition of large in-plane deformation.
(2) Compared with the traditional energy dissipation cantilever system with the wane type amplification device, the energy dissipation device generally adopts a viscous fluid damper which can adapt to large deformation. The original purpose of the cantilever system is to form a horizontal reinforcing layer with high rigidity, coordinate the deformation between the outer frame and the core barrel, enable the outer frame to bear more overturning bending moments, improve the rigidity of the whole structure and reduce the section of a component. The rigidity of the cantilever system is very important for the whole structure, particularly under the action of wind load, the cantilever is required to provide rigidity, however, the static rigidity of the viscous fluid damper is 0, the viscous fluid damper has certain dynamic rigidity only under the earthquake, and the viscous fluid damper has one side with disadvantage on the wind resistance and the earthquake resistance of the structure. The viscoelastic damper has certain initial rigidity, the initial rigidity can be adjusted by changing the thickness of the viscoelastic material layer, and the rigidity is favorable for coordinating the stress of the outer frame and the core barrel due to the lever action.
(3) The viscous fluid damper is adopted to form a composite damping device with the viscous elastic damper and the viscous fluid damper, the viscous elastic damper has good resetting capability and energy consumption capability, the energy consumption damping effect of the damping system can be ensured to be continuously increased along with the increase of the shock level, and the safety of the super high-rise building under the working condition of rare earthquakes or extremely rare earthquakes is effectively protected.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a wane formula amplification type energy dissipation outrigger of outer unstability of prevention which characterized in that includes: the cantilever truss, the outer frame column, the seesaw type amplifying device, the viscous fluid damper, the viscoelastic damper and the connecting steel plate for preventing the external instability; wherein the content of the first and second substances,
the seesaw type amplification device is provided with an upper hinge point, a lower hinge point, a left hinge point and a right hinge point, the seesaw type amplification device is hinged with the outer frame column through the left hinge point, and the seesaw type amplification device is hinged with the outrigger truss through the right hinge point; the seesaw type amplifying device is respectively hinged with one end of the viscous fluid damper through the upper hinge point and the lower hinge point, and the other end of the viscous fluid damper is hinged with the outrigger truss; prevent that off-plane unstability from connecting steel plate fixes at the upper and lower both ends of outer frame post, and with viscoelastic damper fixed connection, viscoelastic damper and last pin roll fixed connection of pin joint or pin joint down.
2. The out-of-plane buckling-preventing wane amplification type energy dissipation boom according to claim 1, wherein a left hinge point of the wane amplification device is connected with an ear plate of the outer frame column through a pin.
3. The out-of-plane buckling-preventing wane amplification type energy dissipation boom of claim 1, wherein a right hinge point of the wane amplification device is connected with an ear plate of a boom truss through a pin shaft.
4. The out-of-plane buckling-preventing wane type amplification energy dissipation boom according to claim 1, wherein the viscoelastic damper comprises two central connecting steel plates, viscoelastic material layers are arranged in the middle and on two sides of the two central connecting steel plates, and limiting steel plates are arranged on the outer sides of the viscoelastic material layers on two sides.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863528A (en) * | 2021-10-09 | 2021-12-31 | 同济大学 | Assembled energy dissipation cantilever structure system |
| CN113914496A (en) * | 2021-10-27 | 2022-01-11 | 北京市建筑设计研究院有限公司 | Energy dissipation extension arm of anti-failure additional amplification device |
| CN114150914A (en) * | 2021-12-07 | 2022-03-08 | 北京工业大学 | Passive negative-stiffness energy dissipation cantilever system for super high-rise building |
| CN114197751A (en) * | 2021-12-28 | 2022-03-18 | 中城建(福建)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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| CN113863528B (en) * | 2021-10-09 | 2022-12-16 | 同济大学 | Assembled energy dissipation cantilever structure system |
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