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Published in: Innovative Infrastructure Solutions 2/2021

01-06-2021 | Technical paper

An evaluation of the advantages of friction TMD over conventional TMD

Authors: Mitra Salimi, Reza Kamgar, Heisam Heidarzadeh

Published in: Innovative Infrastructure Solutions | Issue 2/2021

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Abstract

The seismic performance of conventional tuned mass damper (TMD) has been often improved when more TMD mass ratio is utilized. One limitation in using higher TMD mass ratios for tall buildings is the challenges of designers from the practical point of view. So far, conventional TMD has been more uneconomical. The research on the seismic performance of friction tuned mass dampers (FTMD) is still going on. This paper aimed at evaluating the advantages of the optimal design of friction TMD over conventional TMD for tall structures. For this aim, an optimal design was developed based on a multi-objective cuckoo search optimization algorithm to find the optimal TMD and FTMD parameters, including mass, damping, frequency ratios, and the friction coefficient. Here, the seismic performances of a 40-storey tall building were evaluated and compared from structural responses and energy. Results showed that both dampers could significantly reduce the maximum floor displacement, drift, and acceleration. Furthermore, the FTMD system exhibited a better performance in reducing the roof displacement against the TMD system when the mass ratio was less than 0.03. These advantages are considered to be very important from a practical point of view.

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Metadata
Title
An evaluation of the advantages of friction TMD over conventional TMD
Authors
Mitra Salimi
Reza Kamgar
Heisam Heidarzadeh
Publication date
01-06-2021
Publisher
Springer International Publishing
Published in
Innovative Infrastructure Solutions / Issue 2/2021
Print ISSN: 2364-4176
Electronic ISSN: 2364-4184
DOI
https://doi.org/10.1007/s41062-021-00473-5

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