Scores:
10
MNiSW
100
ICV
 
 

DYNAMIC BEHAVIOR OF STEEL FRAMES WITH TUNED MASS DAMPERS

Mahmood Hosseini 1  ,  
 
1
International Institute of Earthquake Engineering and Seismology (IIEES), P.O. Box 19395-3913, Tehran, Iran
2
Department of Civil Engineering, Islamic Azad University Central Tehran Branch (IAUCTB), Tehran, Iran
3
Department of Civil Engineering, Faculty of Technology and Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
4
School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, 1684613114, Iran
Adv. Sci. Technol. Res. J. 2017; 11(2):146–158
Publish date: 2017-06-01
KEYWORDS:
TOPICS:
ABSTRACT:
In this paper, the effect of using tuned mass damper in improving the response of structures was considered. At first, three frames of 3, 9 and 20 stories were evaluated in which time history analysis was done according to El – Straw earthquake. The maximum reduction of displacement among three mentioned frames belongs to 20-stories structure in which the rate of story displacement reduction is between 25 to 45% and this issue indicates that by increasing the height of the structure, the performance of tuned mass damper improved. In the second part of the study, the effect of semi-active tuned mass damper was studied on a 10-stories frame. Studies showed that using a tuned mass damper system with viscous damper with controller force decreases the average of maximum displacement of roof story till 39.9 % and this amount of reduction is 22.8% for semi-active tuned mass damper. In continues, the performance of tuned Single and multiple Mass Damper was evaluated on a 20-stories frame and the results show that single and multiple dampers decrease structures’ responses effectively and the performance of tuned multiple mass dampers depends on the mass ratio and frequency ratio and also concluded that the performance of tuned multiple mass dampers is reduced by transition to middle of the structure stories.
CORRESPONDING AUTHOR:
Kourosh Talebi Jouneghani   
Department of Civil Engineering,Islamic Azad University Central Tehran Branch (IAUCTB), Tehran, Iran, International Institute of Earthquake Engineering and Seismology (IIEES), P.O. Box 19395-3913, 193953913 Tehran, Iran
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