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Optimal distribution of friction dampers for seismic retrofit of a reinforced concrete moment frame

Optimal distribution of friction dampers for seismic retrofit of a reinforced concrete moment frame This study investigated the story-wise optimal distribution of friction dampers to effectively reduce the seismic response of a reinforced concrete structure designed without considering seismic load. To this end, a genetic algorithm process was applied and the results were compared with those obtained by simple intuitive method based on story drift. The seismic performance of the model structure with optimally positioned friction dampers was evaluated by nonlinear static and dynamic analyses. The analysis results showed that compared with the system without friction dampers, the maximum roof displacement and the inter-story drift ratio were reduced by about 30% and 40%, respectively, after installation of the dampers. In comparison with the intuitive method of installation, the genetic algorithm provided an efficient solution for optimum damper distribution with less amount of friction damper. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

Optimal distribution of friction dampers for seismic retrofit of a reinforced concrete moment frame

Advances in Structural Engineering , Volume 20 (10): 17 – Oct 1, 2017

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References (24)

Publisher
SAGE
Copyright
© The Author(s) 2016
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1177/1369433216683197
Publisher site
See Article on Publisher Site

Abstract

This study investigated the story-wise optimal distribution of friction dampers to effectively reduce the seismic response of a reinforced concrete structure designed without considering seismic load. To this end, a genetic algorithm process was applied and the results were compared with those obtained by simple intuitive method based on story drift. The seismic performance of the model structure with optimally positioned friction dampers was evaluated by nonlinear static and dynamic analyses. The analysis results showed that compared with the system without friction dampers, the maximum roof displacement and the inter-story drift ratio were reduced by about 30% and 40%, respectively, after installation of the dampers. In comparison with the intuitive method of installation, the genetic algorithm provided an efficient solution for optimum damper distribution with less amount of friction damper.

Journal

Advances in Structural EngineeringSAGE

Published: Oct 1, 2017

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