PERFORMANCE IMPROVEMENT OF MULTI STORIED BUILDINGS USING MULTIPLE TUNED MASS DAMPERS
Author(s):
DEEPU S HEGDEN, LAKSHMI P.
Keywords:
damping ratio, mass distribution, mass ratio, Multiple Tuned Mass Dampers (MTMD), number of dampers, Tuned Mass Dampers(TMD), structural frequency, vibration control device.
Abstract
Tuned mass damper (TMD) is one of the most reliable vibration control devices for high rise buildings. It utilizes a secondary mass attached to a main structure through a spring-dashpot system to reduce the dynamic response of the structure. Now a day, multiple tuned mass dampers (MTMD) where more than one TMD is tuned to different structural frequency are used to control earthquake induced motion of high rise buildings. In this work, a comparative analytical study is done to check the effectiveness of multiple tuned mass dampers to reduce translation structural vibration. A typical multi storied building is considered and seismic analysis is carried out without and with STMD or MTMD using software ETABS. From the frequency response analysis of the building to seismic excitations, the mass, stiffness and damping of the tuned mass damper is optimized. It is found that the damper can reduce the displacement of the building to a considerable extent and thus the safety and comfort of the occupants can be ensured. It is found that increase in mass ratio increases the effectiveness of TMD. The number of damper in MTMD is varied and the response of the structure is compared with the response of the structure with STMD. It is found that the MTMD is more effective in controlling the response of the structure compared to the STMD having the same mass. Also, for a given structural system and level of excitation there exists an optimum value of the parameters (number of dampers in MTMD, mass distribution and damping ratio) at which the response of the structure attains its minimum value.
Article Details
Unique Paper ID: 143920

Publication Volume & Issue: Volume 3, Issue 4

Page(s): 1 - 8
Article Preview & Download


Share This Article

Join our RMS

Conference Alert

NCSEM 2024

National Conference on Sustainable Engineering and Management - 2024

Last Date: 15th March 2024

Call For Paper

Volume 10 Issue 10

Last Date for paper submitting for March Issue is 25 June 2024

About Us

IJIRT.org enables door in research by providing high quality research articles in open access market.

Send us any query related to your research on editor@ijirt.org

Social Media

Google Verified Reviews