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Energy dissipation extension arm capable of amplifying interlayer deformation and method thereof

A technology of amplifying layers and energy dissipation, which is applied in the field of earthquake resistance, energy dissipation and shock absorption of engineering structures, and building energy dissipation. It can solve the problems that the damper is difficult to fully exert its working performance and application constraints, so as to improve the structural comfort and anti-seismic safety performance. , Reduce damage, improve work efficiency

Pending Publication Date: 2022-05-31
BEIJING INST OF ARCHITECTURAL DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damper needs a certain amount of deformation or deformation speed to fully exert its energy dissipation effect. For some structures with small lateral deformation or structures under the action of small and medium earthquakes, it is difficult for the damper to fully exert its working performance, and its application is greatly restricted. Solving the above problems requires technical improvement of the existing outrigger trusses

Method used

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  • Energy dissipation extension arm capable of amplifying interlayer deformation and method thereof
  • Energy dissipation extension arm capable of amplifying interlayer deformation and method thereof
  • Energy dissipation extension arm capable of amplifying interlayer deformation and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] combine Figure 1 to Figure 7 As shown, this embodiment provides an energy-dissipating outrigger for amplifying interlayer deformation, including: a core tube 10, an outer frame column 20, and an outrigger truss 30; the core tube 10 and the outer frame column 20 pass through the outrigger The arm truss 30 is connected; the outrigger truss 30 includes an upper chord 32, a lower chord 31 and a diagonal rod 33; it is characterized in that it also includes: an enlarged lever 34; when the diagonal rod 33 is installed upright, wherein the The first end of the amplifying 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 connected in parallel to the lower chord 31 respectively; The second end of the lever 34 is hinged to the upper chord 32 through a pin 41 (an ear plate 42 may be provided on the upper chord 32 );

[0042] By amplifying the action of the lever 34, the working efficiency o...

Embodiment 2

[0049] combine Figure 1 to Figure 7 As shown, this embodiment provides an energy-dissipating outrigger for amplifying interlayer deformation, including: a core tube 10, an outer frame column 20, and an outrigger truss 30; the core tube 10 and the outer frame column 20 pass through the outrigger The arm truss 30 is connected; the outrigger truss 30 includes an upper chord 32, a lower chord 31 and a diagonal rod 33; it is characterized in that it also includes: an enlarged lever 34; when the diagonal rod 33 is installed upside down, wherein, the The first end of the amplifying lever 34 is connected to the first damper 351 and the second damper 352 at the same time; after the first damper 351 and the second damper 352 are arranged in parallel, they are respectively connected to the upper chord 32; the amplifying lever The second end of 34 is hinged to the lower chord 31 through a pin 41; the diagonal rod 33 is hinged to the lower end of the amplifying lever 34.

[0050] By ampl...

Embodiment 3

[0059] combine Figure 1 to Figure 7 As shown, this embodiment provides an energy dissipation method for amplifying interlayer deformation, which sets the energy dissipation outrigger described in Embodiment 1 or Embodiment 2 in the building structure layer to amplify interlayer deformation, and the same content is no longer repeat.

[0060] The interlayer deformation between the upper chord 31 and the lower chord 32 is amplified by the mechanical properties through the amplifying lever 34. The amplifying efficiency of the amplifying lever 34 depends on the length of the two sections of the moment arm of the amplifying lever 34. The calculation formula of the magnification factor η is as follows:

[0061] η=(L 1 +L 2 ) / L 1

[0062] In the formula, L 1 is the length of the first moment arm of the enlarged lever 34, L 2 To enlarge the length of the second section of the moment arm of the lever 34. It can be understood that the enlarged lever 34 constitutes an unequal arm ...

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Abstract

The invention provides an energy dissipation extending arm capable of amplifying interlayer deformation. The energy dissipation extending arm comprises a core tube, an outer frame column and an extending arm truss. The core tube and the outer frame column are connected through the outrigger truss; the outrigger truss comprises an upper chord member, a lower chord member and diagonal web members; the device is characterized by further comprising an amplification lever, the first end of the amplification lever is connected to the damper, the second end of the amplification lever is connected to one of the upper chord member and the lower chord member, the damper is connected with the other one of the upper chord member and the lower chord member, and the diagonal web member is connected with the amplification lever. The working efficiency of the damper is effectively improved by amplifying the lever effect, under the small external force effect, the deformation amount and the deformation speed are amplified through the mechanical effect to excite the damper effect, a large amount of external input energy is consumed, the damage effect of external input on a main body structure is reduced, and the structural comfort and the anti-seismic safety performance are improved; and the method has important practical significance on the development of a super high-rise structure.

Description

technical field [0001] The invention relates to the technical field of building energy dissipation, in particular to an energy-dissipating outrigger for amplifying interlayer deformation and a method thereof, and belongs to the technical field of anti-seismic, energy-dissipating and shock-absorbing engineering structures. Background technique [0002] Earthquake action and wind load action are the two most prominent factors in the design of super high-rise buildings. Under the action of earthquake and wind force, structural deformation and wind-resistant comfort should not exceed the limit specified in the code, which is the focus and difficulty of high-rise design. Most super high-rise structures use the outer frame column and the middle core tube structure system. Outrigger trusses are arranged at a certain floor height between the outer frame column and the inner core tube. When the structure is subjected to horizontal loads, the core is adjusted through the coordination ...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98E04B1/19
CPCE04H9/021E04H9/0237E04B1/98E04B1/19
Inventor 薛红京束伟农陆新征閤东东周思红蔡青赵子斌蔡雨婷
Owner BEIJING INST OF ARCHITECTURAL DESIGN
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