Spatial grid structure distributed rod-inlaid-type tuned mass damper

A technology of tuning mass damping and grid structure, which is applied to building components, building structures, protective buildings/shelters, etc., can solve the problems of inapplicability of tuning mass dampers, energy dissipation, etc., and achieve easy promotion, Save space and cost, simple structure effect

Pending Publication Date: 2018-05-04
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that traditional tuned mass dampers are not suitable for vibration control of large-span space grid structures, the purpose of the present invention is to propose a distributed built-in rod-type tuned mass damper for space grid structures, which can be used in space grid structures. A damping system is installed in the rod to transmit and dissipate energy

Method used

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  • Spatial grid structure distributed rod-inlaid-type tuned mass damper
  • Spatial grid structure distributed rod-inlaid-type tuned mass damper
  • Spatial grid structure distributed rod-inlaid-type tuned mass damper

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Embodiment 1

[0025] Embodiment 1: as figure 1 As shown, it is a rod-type collision damper with built-in space grid structure of the present invention, which mainly includes a damper cavity unit 1, a mass block 2, a connecting spring 3, a viscous damper 4, a guide rod 5, and sliding balls 6.

[0026] Such as figure 2 , 3 As shown, there is a sliding ball between the mass block and the guide rod to reduce the friction between the two, and the sliding ball is coated with lubricant to reduce wear.

[0027] Such as Figure 4 , 5 As shown, the damper can be arranged at any position in the space grid structure, and the bold line in the figure is an example diagram of the damper. The specific location in actual engineering can be based on the dynamic response of the main structure to its mode participation coefficient, through the mode participation coefficient or the main mode that needs to be controlled, and the damper is arranged at the antinode of each main mode.

[0028] The damper cav...

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Abstract

The invention provides a spatial grid structure distributed rod-inlaid-type tuned mass damper and belongs to the technical field of construction engineering shock resistance and wind resistance. The spatial grid structure distributed rod-inlaid-type tuned mass damper comprises a damper cavity unit, a mass block, a connecting spring, a viscous damper, a guiding rod and sliding balls. The damper cavity unit is a cavity unit in a spatial grid rod piece, and the guiding rod is arranged in a cavity to be used for being connected with the connecting spring, the viscous damper and the mass block. Themass block and the spatial grid rod piece are the same in shape, and the contacting position of the mass block and the guiding rod is provided with the sliding balls which can slide along the guidingrod. According to the spatial grid structure distributed rod-inlaid-type tuned mass damper, when a structure vibrates, kinetic energy of the structure can be transmitted to the mass block through theconnecting spring, so that the kinetic energy of the structure is reduced; energy can be dissipated through the viscous damper, and damping can be conducted on different vibration modes of the structure; the spatial grid structure distributed rod-inlaid-type tuned mass damper has the advantages that the damping frequency band is wide, the structure is simple, and robustness is good, and has wideapplicability in the field of construction engineering shock resistance and wind resistance.

Description

technical field [0001] The invention relates to the technical field of anti-seismic and wind resistance of construction engineering, in particular to a distributed built-in rod-type tuned mass damper in a space grid structure. Background technique [0002] In recent years, tuned mass damper vibration reduction technology has been widely used due to its simple structure, significant vibration reduction effect, clear vibration reduction and energy dissipation mechanism, no need to apply external energy, and easy implementation. Due to its large span, small vertical stiffness, and easy to be affected by wind or earthquake, the space grid structure has significant three-dimensional space characteristics and dense dynamic response mode shapes. [0003] However, at present, the common tuned mass dampers are mostly placed on the top or bottom of the building structure, with large mass and volume, and a concentrated range of action. Only a few of the first few mode shapes are contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/02E04H9/0235E04H9/0215
Inventor 段瑶瑶霍林生宋钢兵
Owner DALIAN UNIV OF TECH
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