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Structural system for structural vibration double control and design method

A system and overall structure technology, applied in the direction of earthquake resistance, building components, building types, etc., can solve problems such as widening, structural burden, and large lifting amount in the middle of the beam, so as to achieve rich visual effects, avoid TMD, and have good visual effects Effect

Active Publication Date: 2022-01-21
BEIJING INST OF ARCHITECTURAL DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Increasing the beam height or truss height will not be able to achieve a light and thin architectural effect;
[0004] (2) The additional structural column has a larger cross-section due to the need to bear the weight of the long-span structure, which affects the architectural effect;
[0005] (3) The arched structure requires a large lift in the middle of the beam, which affects the architectural effect;
[0006] (4) TMD is sensitive to the vibration frequency. A single TMD usually improves the vibration efficiency of the structure at a specific frequency. If the excitation frequency deviates slightly, the vibration damping efficiency will be significantly reduced.
Due to the wide frequency band of seismic action, a single TMD usually cannot significantly reduce the seismic response, and may even cause the seismic response to be amplified
The joint application of multiple TMDs can widen the vibration-damping (seismic) sensitive frequency range, but it will bring a significant burden to the structure

Method used

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  • Structural system for structural vibration double control and design method
  • Structural system for structural vibration double control and design method
  • Structural system for structural vibration double control and design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] This embodiment provides an arrangement form of tension components suitable for vertically long cantilever structures.

[0113] Such as Figure 10 As shown, the root of the long cantilever structure body 1 is fixed on the fixed body, and the tension component 4 is arranged on its side. The tension component includes: a tension body 40 ; a structural body connection node 41 ; and a fixed body connection node 42 . The tension body 40 is not limited to horizontal or inclined arrangement; the structural body connecting node 41 is more efficient in damping (seismic) when connecting the middle or upper part of the long cantilever structural body; the fixed body connecting node 42 can be connected to the fixed long cantilever structural body 1 On the same fixed body, it can also be reversed.

[0114] In particular, the tension components in this arrangement are suitable for wind vibration damping or horizontal earthquake damping of high-rise or towering structures.

Embodiment 2

[0116] This embodiment provides an arrangement form of "many to one" tension components without guide devices.

[0117] Such as Figure 11 As shown, the tension assembly 4 includes: a plurality of tension bodies 40; one end of the plurality of tension bodies 40 is connected to the structural body 1 through a plurality of structural body connection nodes 41, and the other ends of the plurality of tension bodies 40 are fixed through a The body connection node 42 is connected to the fixed body 2 .

[0118] The structure of the tension components in this arrangement is simple, and compared with the "one-to-one" connection, since multiple tension components can provide more action points for the structural body, the vibration (shock) efficiency is higher .

Embodiment 3

[0120] Such as Figure 12 As shown, this embodiment provides a "many-to-one" arrangement of single-stage retractable tension components 4 with guiding devices 43 .

[0121] The tension component 4 includes: a plurality of tension bodies 40 split into beams and a single tension body 40 is bundled; one end of the plurality of tension bodies is connected to the structural body 1 through a plurality of structural body connection nodes 41, and the plurality of tension bodies are divided The other end of the bundle 40 is connected to a tension body bundle 40 on the opposite side through a guide device 43 , and the other end of the tension body bundle 40 is connected to the fixed body 2 through a fixed body connecting node 42 .

[0122] The setting position of the guide device in this arrangement form is adjustable, and can be set at different elevation positions of the tension body. The beam is connected with the fixed body 2, so the structure of the fixed body connection node 2 is s...

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Abstract

The invention belongs to the technical field of building structures, and particularly relates to a structural system for structural vibration double control and a design method. A structure body and a fixing body are connected through a thin tension assembly, and dual control over micro-vibration and seismic oscillation of the structure can be achieved. According to the method, the original building effect is not affected basically, the structural section is not increased, the structure does not need to be lifted to form an arch, the additional load of the structure can be ignored basically, the excitation frequency adaptation range is wide, and the vibration and vibration control efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a structural system and a design method for structural vibration and vibration dual control. Background technique [0002] Long-span structure, long cantilever structure (the "long-span" or "long cantilever" structure described in this application is not judged by the specific structural span or cantilever length value, but generally refers to the vibration due to the small structural stiffness. All structures that require (vibration) control, which will not be described in detail below) or flexible structures are widespread structural forms, and their application scenarios include but are not limited to residential buildings, public buildings, industrial buildings, road and bridge buildings, etc. These structures may produce obvious structural vibrations under the excitation of pedestrian loads, vehicle loads, equipment loads, and wind loads, which will a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/021
Inventor 张龑华盛平冯鹏甄伟王可李伟
Owner BEIJING INST OF ARCHITECTURAL DESIGN
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