CN216840887U - Energy dissipation cantilever for amplifying interlayer deformation - Google Patents
Energy dissipation cantilever for amplifying interlayer deformation Download PDFInfo
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- CN216840887U CN216840887U CN202122835279.3U CN202122835279U CN216840887U CN 216840887 U CN216840887 U CN 216840887U CN 202122835279 U CN202122835279 U CN 202122835279U CN 216840887 U CN216840887 U CN 216840887U
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Abstract
The utility model provides an energy dissipation boom for amplifying interlayer deformation, which comprises: the core barrel, the outer frame column and the outrigger truss; the core barrel and the outer frame column are connected through the outrigger truss; the outrigger truss comprises an upper chord member, a lower chord member and an inclined web member; it is characterized by also comprising: an amplifying lever; the first end of the amplification lever is connected to a damper, the second end of the amplification lever is connected to one of the upper chord and the lower chord, the damper is connected to the other of the upper chord and the lower chord, and the diagonal web member is connected to the amplification lever. The utility model effectively improves the working efficiency of the damper by amplifying the lever action, amplifies the deformation and the deformation speed by the mechanical action under the action of smaller external force to excite the damper to act, consumes a large amount of external input energy, reduces the damage of the external input to the main structure, improves the structural comfort and the anti-seismic safety performance, and has important practical significance for the development of super high-rise structures.
Description
Technical Field
The utility model relates to the technical field of energy dissipation of buildings, in particular to an energy dissipation cantilever for amplifying interlayer deformation, and belongs to the technical field of earthquake resistance, energy dissipation and shock absorption of engineering structures.
Background
Earthquake action and wind load action are two most prominent factors in super high-rise building design. The main points and difficulties of high-rise design are that the structural deformation and the wind resistance comfort degree do not exceed the limits of the specification under the action of earthquake and wind power. The super high-rise structure mostly adopts a peripheral frame column and a middle core tube structure system, an outrigger truss is arranged between the peripheral frame column and an inner core tube at a certain floor height, when the structure is acted by horizontal load, the stress and deformation conditions of the core tube and the periphery are adjusted through the coordination action of the outrigger truss, one side of the peripheral frame column is pressed, and the other side is pulled, so that the anti-overturning moment is formed, the earthquake and wind action is resisted, the structural deformation is reduced, and the action of the outrigger truss is very obvious. The damper is added in the outrigger truss reinforcing system, so that wind or earthquake input energy can be intensively dissipated through the damper, the reaction of the main body structure under the action of wind power or earthquake is reduced, and the aim of shock absorption is fulfilled. The damper needs a certain deformation amount or deformation speed when fully playing the energy consumption role, and for some structures or structures with small self lateral deformation under the action of medium and small earthquakes, the damper is difficult to fully play the working performance, the application is greatly restricted, and the existing outrigger truss needs to be technically improved in order to solve the problems.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy dissipation cantilever for amplifying interlayer deformation, which is used for solving the problems in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, the present invention provides an energy dissipating boom for amplifying interlaminar deformation, comprising: the core tube, the outer frame column and the outrigger truss; the core barrel and the outer frame column are connected through the outrigger truss; the outrigger truss comprises an upper chord member, a lower chord member and an inclined web member; further comprising: an amplifying lever;
the first end of the amplifying lever is connected to the damper, the second end of the amplifying lever is connected to one of the upper chord and the lower chord, the damper is connected to the other of the upper chord and the lower chord, and the inclined web member is connected to the amplifying lever, so that the amplifying lever forms an unequal-arm lever.
Preferably, when the diagonal web members are mounted upright, wherein,
The first end of the amplifying lever is connected to the first damper and the second damper at the same time; the first damper and the second damper are arranged in parallel and then are respectively connected with the lower chord; the second end of the amplifying lever is hinged to the upper chord through a first pin shaft; the inclined web member is hinged with the upper end of the amplifying lever.
Preferably, the first damper is connected to the lower chord by a first bracket;
the second damper is connected to the lower chord through a second bracket.
Preferably, the diagonal web members are arranged in a herringbone shape, the upper ends of the diagonal web members are hinged with the amplification lever through second pin shafts, and the lower ends of the diagonal web members are fixed to end nodes on two sides of the lower chord member.
Preferably, when the diagonal web members are mounted in an inverted position, wherein,
the first end of the amplifying lever is connected to the first damper and the second damper simultaneously; the first damper and the second damper are arranged in parallel and then are respectively connected with the upper chord; the second end of the amplifying lever is hinged to the lower chord through a first pin shaft; the inclined web member is hinged with the lower end of the amplifying lever.
Preferably, the first damper is connected to the upper chord by a first bracket;
The second damper is connected to the upper chord through a second bracket.
Preferably, the oblique web members are arranged in a V shape, the lower ends of the oblique web members are hinged to the amplification levers through second pin shafts, and the upper ends of the oblique web members are fixed to end nodes on two sides of the lower chord member.
Preferably, the lower chord is provided with two symmetrical restraining side plates along the middle line thereof; the amplifying lever is arranged in a gap area between the two constraint side plates;
a polytetrafluoroethylene plate is arranged on one side of the restraint side plate close to the amplifying lever;
the damper is a horizontally arranged velocity type damper.
Preferably, the outrigger truss is connected with the core tube through a steel skeleton column or an embedded part embedded in the core tube.
Preferably, the diagonal web members may be circular steel tubes, square steel tubes or H-shaped steel.
In a second aspect, the utility model provides an energy dissipation method for amplifying interlayer deformation, which is characterized in that an energy dissipation extending arm for amplifying interlayer deformation is arranged in a building structure layer;
the interlayer deformation between the upper chord and the lower chord is amplified through the amplifying lever through mechanical property, the amplifying efficiency of the amplifying lever depends on the length of two sections of force arms of the amplifying lever, and the calculation formula of the amplifying factor eta is as follows:
η＝(L1+L2)/L1
In the formula, L1The length of a first section force arm of the lever is enlarged; l is2In order to enlarge the length of the second section force arm of the lever.
Preferably, the energy dissipating boom with enlarged interlayer deformation is applied to a single structural layer of a building.
Preferably, the energy dissipation boom with the enlarged interlayer deformation is applied to two or more structural layers of a building.
By adopting the technical scheme, the utility model has the following beneficial effects:
the utility model effectively improves the working efficiency of the damper by amplifying the lever action, amplifies the deformation and the deformation speed by the mechanical action under the action of smaller external force to excite the damper to act, consumes a large amount of external input energy, reduces the damage of the external input to the main structure, improves the structural comfort and the anti-seismic safety performance, and has important practical significance for the development of super high-rise structures.
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 schematic vertical plane view of an energy dissipation extending arm in the vertical arrangement of a building according to the utility model;
FIG. 2 is a schematic plan view of an energy dissipating boom of the present invention between a core tube and an outer frame column according to the anti-failure and amplification technique;
FIG. 3 is a schematic view of an enlarged technical energy dissipating boom in elevation view of an anti-failure belt according to the present invention;
FIG. 4 is an enlarged lever working schematic of the present invention;
FIG. 5 is an enlarged view of the extension arm of the present invention positioned on the compression side web rod for force output and deformation;
FIG. 6 is an enlarged view of the extension arm of the present invention positioned at the outlet and deformation of the tension side web member;
FIG. 7 is a top view of the damper and magnifying lever connection
Fig. 8 is a schematic view of the inverted installation of the present invention.
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 utility model 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.
Example one
Referring to fig. 1 to 7, the present embodiment provides an energy dissipating boom for amplifying interlayer deformation, including: a core barrel 10, an outer frame column 20 and a outrigger truss 30; the core barrel 10 and the outer frame column 20 are connected by the outrigger truss 30; the outrigger truss 30 comprises an upper chord 31, a lower chord 32 and an inclined web member 33; it is characterized by also comprising: an amplification lever 34; when the diagonal web member 33 is installed upright, the first end of the amplification lever 34 is connected to the first damper 351 and the second damper 352; the first damper 351 and the second damper 352 are connected in parallel and then are respectively connected with the lower chord 32; a second end of the amplifying lever 34 is hinged to the upper chord 31 through a first pin shaft 41 (an ear plate 42 can be arranged on the upper chord 31); the diagonal web member 33 is hinged to the upper end of the amplification lever 34.
The working efficiency of the damper is effectively improved through the action of the amplifying lever 34, under the action of small external force, the deformation and the deformation speed are amplified through mechanical action to excite the damper to act, a large amount of external input energy is consumed, the damage effect of external input on a main body structure is reduced, the structural comfort and the anti-seismic safety performance are improved, and the method has important practical significance on the development of super high-rise structures.
In this embodiment, preferably, the first damper 351 is connected to the lower chord 32 through a first bracket 361; the second damper 352 is connected to the lower chord 32 by a second bracket 362, and the damper is amplified by a mechanical lever, and the damper is connected in parallel and fixed to the boom lower chord steel bracket. The specification and performance parameters of the viscous damper can be selected according to the actual engineering so as to ensure the energy consumption effect and the acting force transmission.
In this embodiment, preferably, the diagonal web members 33 are arranged in a herringbone manner, the upper ends of the diagonal web members 33 are hinged to the amplification lever 34 through second pin shafts 40, and the lower ends of the diagonal web members 33 are fixed to the end nodes on both sides of the lower chord 32.
In this embodiment, preferably, the lower chord is provided with two symmetrical constraining side plates 43 along the middle line thereof; the amplification lever 34 is arranged in a gap area between the two constraint side plates 43, and the specific thickness and size are according to engineering requirements.
Preferably, the side of the constraining side plate 43 close to the magnifying lever 34 is provided with a teflon plate.
Preferably, the damper is a horizontally arranged velocity type damper, does not play a role in a static state, does not contribute to rigidity, and viscous liquid of the viscous damper passes through the damping channel under the action of pressure difference under the action of horizontal loads such as wind load, earthquake load and the like so as to generate damping force. Preferably, the outrigger truss is connected with the core tube through a steel skeleton column or an embedded part embedded in the core tube. Preferably, the diagonal web members can be round steel tubes, square steel tubes or H-shaped steel and can be flexibly arranged according to actual needs.
Example two
As shown in fig. 8, the present embodiment provides an energy dissipating boom for amplifying interlayer deformation, including: a core barrel 10, an outer frame column 20 and an outrigger truss 30; the core barrel 10 and the outer frame column 20 are connected by the outrigger truss 30; the boom truss 30 comprises an upper chord 31, a lower chord 32 and a diagonal web member 33; further comprising: an amplification lever 34; when the diagonal web member 33 is installed in an inverted manner, the first end of the amplification lever 34 is connected to the first damper 351 and the second damper 352 at the same time; the first damper 351 and the second damper 352 are arranged in parallel and then are respectively connected with the upper chord 31; the second end of the amplifying lever 34 is hinged to the lower chord 32 through a first pin shaft 41; the diagonal web member 33 is hinged to the lower end of the amplification lever 34.
The working efficiency of the damper is effectively improved through the action of the amplifying lever 34, under the action of small external force, the deformation and the deformation speed are amplified through mechanical action to excite the damper to act, a large amount of external input energy is consumed, the damage effect of external input on a main body structure is reduced, the structural comfort and the anti-seismic safety performance are improved, and the method has important practical significance on the development of super high-rise structures.
In this embodiment, preferably, the first damper 351 is connected to the upper chord 31 through a first bracket 361; the second damper 352 is connected to the upper chord 31 by a second bracket 362. The damper is amplified through a mechanical lever, has parallel connection function and is fixed on the lower chord steel corbel of the cantilever. The specification and performance parameters of the viscous damper can be selected according to the actual engineering so as to ensure the energy consumption effect and the acting force transmission.
In this embodiment, preferably, the diagonal web member 33 is arranged in a V shape, the lower end of the diagonal web member 33 is hinged to the amplification lever 34 through a second pin 40, and the upper end of the diagonal web member 33 is fixed to the two side end nodes of the upper chord 31.
In this embodiment, preferably, the upper chord is provided with two symmetrical constraining side plates 43 along the middle line thereof; the amplification lever 34 is arranged in a gap area between the two constraint side plates 43, and the specific thickness and size are according to engineering requirements.
Preferably, the side of the constraining side plate 43 close to the magnifying lever 34 is provided with a teflon plate.
Preferably, the damper is a horizontally arranged velocity type damper, does not play a role in a static state, does not contribute to rigidity, and viscous liquid of the viscous damper passes through the damping channel under the action of pressure difference under the action of horizontal loads such as wind load, earthquake load and the like so as to generate damping force.
Preferably, the outrigger truss is connected with the core tube through a steel skeleton column or an embedded part embedded in the core tube.
Preferably, the diagonal web members can be round steel tubes, square steel tubes or H-shaped steel and can also be flexibly arranged according to actual needs.
EXAMPLE III
With reference to fig. 1 to 7, the present embodiment provides an energy dissipation method for amplifying interlayer deformation, in which the energy dissipation arms for amplifying interlayer deformation in the first embodiment or the second embodiment are disposed in a building structure layer, and the same contents are not repeated.
The interlayer deformation between the upper chord 31 and the lower chord 32 is amplified through mechanical performance by the amplifying lever 34, the amplifying efficiency of the amplifying lever 34 depends on the lengths of two sections of force arms of the amplifying lever 34, and the calculation formula of the amplifying factor eta is as follows:
η＝(L1+L2)/L1
in the formula, L1To enlarge the first arm length, L, of the lever 342To enlarge the second arm length of the lever 34. It will be appreciated that the amplification lever 34 constitutes an unequal arm lever, wherein the arm length between the connection point at the first end of the amplification lever 34 and the fulcrum (the connection point with the diagonal web member) is L2The length of the force arm between the connecting point of the second end of the amplifying lever 34 and the fulcrum (the connecting position with the diagonal web member) is L 1(ii) a Under the action of external force, the relative deformation value of the diagonal web member and the truss upper chord is delta, and the deformation value at the tail end of the amplifying lever 34 is eta delta, wherein eta is (L)1+L2)/L1。
Preferably, the energy dissipating boom with enlarged interlayer deformation is applied to a single structural layer of a building.
Preferably, the energy dissipation boom with the enlarged interlayer deformation is applied to two or more structural layers of a building.
As shown in fig. 5, under the action of wind and seismic force, the boom truss 30 functions to adjust the stress and deformation conditions of the core cylinder and the periphery, the end point of the diagonal brace is misaligned with the upper chord 31 of the truss, the upper chord 31 and the lower chord 32 of the boom truss on the tension side are kept in the floor plane, the first diagonal web member 331 is pressed, the second diagonal web member 332 is pulled, the force is amplified by the unequal arm lever 34, an axial downward acting force is comprehensively generated on the damper, and the damper functions in energy consumption.
As shown in fig. 6, under the action of wind and seismic force, the boom truss 30 acts to adjust the stress and deformation conditions of the core cylinder and the periphery, the end point of the diagonal brace is misaligned with the upper chord 31 of the truss, the upper chord 31 and the lower chord 32 of the boom truss at the pressure side are kept in the floor plane, the diagonal web member 331 is pulled, the diagonal web member 332 is pressed, and amplified by the unequal arm lever 34 to comprehensively generate an axial downward acting force on the damper, so that the damper acts to dissipate energy.
In conclusion, the damper effectively improves the working efficiency of the damper through the amplification leverage, and under the action of small external force, the deformation and the deformation speed are amplified through the mechanical action to excite the damper to act, so that a large amount of external input energy is consumed, the damage effect of the external input on a main body structure is reduced, the structural comfort and the anti-seismic safety performance are improved, and the damper has important practical significance on the development of super high-rise structures.
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 utility model 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 (10)
1. An energy dissipating boom for amplifying interlaminar deformation, comprising: the device comprises a core barrel (10), an outer frame column (20) and an outrigger truss (30); the core barrel (10) and the outer frame column (20) are connected through the outrigger truss (30); the outrigger truss (30) comprises an upper chord (31), a lower chord (32) and an inclined web member (33); it is characterized by also comprising: an amplification lever (34);
The first end of the amplification lever (34) is connected to a damper, the second end of the amplification lever (34) is connected to one of the upper chord (31) and the lower chord (32), the damper is connected to the other of the upper chord (31) and the lower chord (32), and the diagonal web member (33) is connected to the amplification lever (34) so that the amplification lever (34) forms an unequal arm lever.
2. An energy dissipating boom for amplifying deformations between layers as claimed in claim 1,
when the diagonal web members (33) are installed upright, wherein,
the first end of the amplifying lever (34) is connected with a first damper (351) and a second damper (352) at the same time; the first damper (351) and the second damper (352) are arranged in parallel and then are respectively connected with the lower chord (32); the second end of the amplifying lever (34) is hinged to the upper chord (31) through a first pin shaft (41); the inclined web member (33) is hinged with the upper end of the amplifying lever (34).
3. An energy dissipating boom for amplifying deformations between layers as defined in claim 2,
the first damper (351) is connected to the lower chord (32) by a first leg (361);
the second damper (352) is connected to the lower chord (32) by a second bracket (362).
4. An energy dissipating boom for amplifying interlaminar deformation as claimed in claim 2,
the diagonal web members (33) are arranged in a herringbone shape, the upper ends of the diagonal web members (33) are hinged with the amplification levers (34) through second pin shafts (40), and the lower ends of the diagonal web members (33) are fixed to end nodes on two sides of the lower chord (32).
5. An energy dissipating boom for amplifying deformations between layers as claimed in claim 1,
when the diagonal web members (33) are mounted in an inverted position, wherein,
the first end of the amplifying lever (34) is connected with a first damper (351) and a second damper (352) at the same time; the first damper (351) and the second damper (352) are arranged in parallel and then are respectively connected with the upper chord (31); the second end of the amplifying lever (34) is hinged to the lower chord (32) through a first pin shaft (41); the inclined web member (33) is hinged with the lower end of the amplifying lever (34).
6. An energy dissipating boom for amplifying deformations between layers as defined in claim 5,
the first damper (351) is connected to the upper chord (31) by a first bracket (361);
the second damper (352) is connected to the upper chord (31) by a second bracket (362).
7. An energy dissipating boom for amplifying deformations between layers as defined in claim 5,
Oblique web member (33) are arranged for the V word form, the lower extreme of oblique web member (33) through second round pin axle (40) with amplification lever (34) are articulated, the upper end of oblique web member (33) is fixed in lower chord member (32) both sides end node.
8. An energy dissipating boom for amplifying interlaminar deformations according to claim 7, wherein the lower chord is provided with two symmetrical constraining side plates (43) along its centre line; the amplifying lever (34) is arranged in a gap area between the two constraint side plates (43);
a polytetrafluoroethylene plate is arranged on one side, close to the amplifying lever (34), of the restraining side plate (43);
the damper is a horizontally arranged velocity type damper.
9. An energy dissipating boom for amplifying interlaminar deformation as claimed in claim 1, wherein said boom truss and said core tube are connected by steel skeleton columns or embedded members embedded in the core tube.
10. An energy dissipating boom for amplifying interlaminar deformation as claimed in claim 1, wherein said diagonal web members are made of round steel pipes, square steel pipes or H-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122835279.3U CN216840887U (en) | 2021-11-18 | 2021-11-18 | Energy dissipation cantilever for amplifying interlayer deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122835279.3U CN216840887U (en) | 2021-11-18 | 2021-11-18 | Energy dissipation cantilever for amplifying interlayer deformation |
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| CN216840887U true CN216840887U (en) | 2022-06-28 |
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| CN202122835279.3U Active CN216840887U (en) | 2021-11-18 | 2021-11-18 | Energy dissipation cantilever for amplifying interlayer deformation |
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- 2021-11-18 CN CN202122835279.3U patent/CN216840887U/en active Active
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