| Title |
Vertical Vibration Control of 39-Story Steel Structure with Tuned Mass Damper |
| Authors |
Woo, Sung-Sik ; Lee, Sang-Hyun ; Hwang, Ji-Hyun ; Chung, Lan |
| Keywords |
Tuned Mass Damper ; Vertical Vibration ; Resonance Phenomenon ; Vibration Control ; Natural Frequency |
| Abstract |
An abnormal vibration accident occurred in a 39 story steel frame structure on July 5th, 2011. In this study, The eigenvalue and time history analyses were conducted using a 3 dimensional numerical model to investigate the vertical vibration cause. The vertical accelerations of the several floors measured during the tests of human rhythmic movements in a fitness center on the 12th floor were compared with the analysis results. Based on test data and numerical results, it was identified that the natural frequency of vertical vibration mode of the building is equal to the main frequency of human group rhythmic movements and the resonance of the vertical mode caused the abnormal vertical vibration of the building. |