Parameter Analysis on Damping Effect of a Novel Viscously-Damped Outrigger

XUE Hao; LIU Jinyang; LUO Zheng; XUE Jianyang; GE Hongpeng

doi:10.13204/j.gyjzG21111515

Volume 52 Issue 11

Nov. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(11): 189-193

Li Yuqi, Xie Kanghe. PREDICTION AND ANALYSIS OF DEFORMATION OF DEEP EXCAVATION[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(9): 19-21,80. doi: 10.13204/j.gyjz200409006

Citation:

XUE Hao, LIU Jinyang, LUO Zheng, XUE Jianyang, GE Hongpeng. Parameter Analysis on Damping Effect of a Novel Viscously-Damped Outrigger[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(11): 189-193. doi: 10.13204/j.gyjzG21111515

Li Yuqi, Xie Kanghe. PREDICTION AND ANALYSIS OF DEFORMATION OF DEEP EXCAVATION[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(9): 19-21,80. doi: 10.13204/j.gyjz200409006

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Parameter Analysis on Damping Effect of a Novel Viscously-Damped Outrigger

doi: 10.13204/j.gyjzG21111515

1. College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. China Northwest Architecture Design and Research Institute Co., Ltd., Xi'an 710018, China

Received Date: 2021-11-15

Abstract

Abstract

Taking a practical super high-rise building as a case study, the improved viscous damping outrigger scheme which contains a lever mechanism installed at the end of the truss was proposed to amplify the deformation of the dampers in conventional viscous damping outrigger in earthquakes. The comparative analysis of damping effect of the two different damping schemes was carried out, and the main parameters (damper parameters and leverage ratio) affecting the energy dissipation efficiency of the newly-proposed viscous damping outrigger scheme were studied. The results indicated that the newly-proposed viscous damping outrigger scheme could amplify the deformation and velocity of dampers effectively, and the amplification factor was approximately equal to the leverage ratio of the T-shaped rigid arm; as the lever ratio increased, the optimal damping coefficient of the newly-proposed viscously damped outrigger decreased gradually. The product of the optimal damping coefficient and the leverage ratio in the newly-proposed viscous damping outrigger was approximately equal to the optimal damping coefficient of the conventional viscously damped outrigger.
- super high-rise building,
- frame-core tube,
- viscous damper,
- viscous damping outrigger,
- leverage ratio

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References

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