scholarly journals High-rise Structure Vibration Control with Gyroscopes

2014 ◽  
Author(s):  
Hao-Xiang HE ◽  
Rui-Feng LI ◽  
Kui CHEN
Keyword(s):  
Vibration Control ◽  
High Rise ◽  
Structure Vibration

scholarly journals Wind-Induced Vibration Control of High-Rise Structures Using Compound Damping Cables

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jianda Yu ◽  
Zhibo Duan ◽  
Xiangqi Zhang ◽  
Jian Peng
Keyword(s):  
Vibration Control ◽  
Damping Ratio ◽  
Viscosity Coefficient ◽  
Structural Vibration ◽  
Vibration Displacement ◽  
High Rise ◽  
Main Cable ◽  
Small Vortex ◽  
Wind Induced Vibration ◽  
Fluctuating Wind

Based on the vibration reduction mechanism of compound damping cables, this study focuses on the wind-induced vibration control of high-rise structures with additional mass at the top. The differential equation of motion of the system under the action of the composite damping cable is established, and the analytical solution of the additional damping ratio of the structure is deduced, which is verified by model tests. The vibration response of the structure under the action of simple harmonic vortex excitation and randomly fluctuating wind loads is studied, and the effect of different viscous coefficients of the dampers in the composite damping cable and different installation heights of the damping cable on the vibration control is analyzed. The results show that a small vortex excitation force will cause large vibrations of low-dampened towering structures, and the structure will undergo buffeting under the action of wind load pulse force. The damping cable can greatly reduce the amplitude of structural vibration. The root means square of structural vibration displacement varies with damping. The viscosity coefficient of the device and the installation height of the main cable of the damping cable are greatly reduced.

Shake Table Test of Complex High-Rise Building Equipped with Torsional Vibration Control Device

2012 ◽  
Vol 446-449 ◽  
pp. 3889-3893
Author(s):  
Bin Zhao ◽  
Juan He ◽  
Hui Gao ◽  
Xu Gang Chen
Keyword(s):  
Vibration Control ◽  
Torsional Vibration ◽  
Shake Table Test ◽  
Scale Model ◽  
Shake Table ◽  
Test Results ◽  
Torsional Mode ◽  
High Rise ◽  
High Rise Building ◽  
Local Space

For many high-rising buildings, large local space is very useful for its special function needs, such as conference hall and hotel lobby. The shake table test results of a high-rising building with large local space show that the dynamic characteristics of such structure are complex and the torsional mode becomes the first mode, while the torsional responses under earthquake excitation, especially of the floor just above the large local space, are very remarkable. In this paper, the bidirectional Tuned Mass Damper (TMD) is employed for reducing the torsional vibration of such complex high-rise building structure. A reduced-scale model is design and constructed. A series of shake table tests are carried out and the test results indicate that the TMD system is very effective in torsional vibration control of structural system.

High-Rise Building Seismic Vibration Control Using Large Tuned Top-Floor Mass Damper

2009 ◽  
Vol 4 (3) ◽  
pp. 246-252
Author(s):  
Akifumi Makino ◽  
Keyword(s):  
Reinforced Concrete ◽  
Vibration Control ◽  
Large Scale ◽  
Response Analysis ◽  
Strong Wind ◽  
Reinforced Concrete Structure ◽  
Vibration Period ◽  
High Rise ◽  
Mass Damper ◽  
Story Drift

This paper details the design of a high-rise reinforced concrete building whose top floor is isolated and used as the mass for a large-scale mass damper, describing the effect of the vibration control realized. Conventional mass dampers with additional weight at the building tops have been installed to improve environmental vibration against strong wind. Mass dampers have rarely been used, however, as measure against earthquakes. We developed large-scale vibration control using the top floor building weight to serve as a mass damper. The building is a high-rise reinforced concrete structure, 162 meters high, with 43 above-ground stories. Based on seismic response analysis using artificial earthquake waves, the natural vibration period of the mass damper was tuned to decrease story drift in the entire building. The mass damper reduced maximum story drift angle by 20%.

Optimal design of wind-induced vibration control of tall buildings and high-rise structures

1999 ◽  
Vol 2 (1) ◽  
pp. 69-83 ◽  
Author(s):  
Qiusheng Li ◽  
Hong Cao ◽  
Guiqing Li ◽  
Shujing Li ◽  
Dikai Liu
Keyword(s):  
Optimal Design ◽  
Vibration Control ◽  
Tall Buildings ◽  
High Rise ◽  
Wind Induced Vibration

21617 Passive Vibration Control for Connected Four High-Rise Buildings with MR dampers

2007 ◽  
Vol 2007.13 (0) ◽  
pp. 11-12
Author(s):  
Shingo MITANI ◽  
Shigeru INABA ◽  
Chinori IIO ◽  
Fadi DOHNAL ◽  
Kazuto SETO ◽  
...  
Keyword(s):  
Vibration Control ◽  
Passive Vibration Control ◽  
High Rise ◽  
Mr Dampers
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