Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures

In this paper to increase the efficiency of direct displacement based design (DDBD) in designing structures equipped with viscous dampers (VDs), a method has been proposed to determine optimal distribution of VDs. The proposed method has been based on defining an optimization problem which minimizes...

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Autores principales:	S. Moradpour, Mehdi Dehestani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	performance-based design direct displacement-based design fluid viscous damper optimization distributed genetic algorithm Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/0bd933be279049a1af8b9adf826db6bb
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spelling	oai:doaj.org-article:0bd933be279049a1af8b9adf826db6bb2021-11-08T15:53:54ZOptimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures2476-39772538-261610.22065/jsce.2019.152256.1684https://doaj.org/article/0bd933be279049a1af8b9adf826db6bb2020-07-01T00:00:00Zhttps://www.jsce.ir/article_81347_3e6a79304aff25ce86af25cc790a14c0.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this paper to increase the efficiency of direct displacement based design (DDBD) in designing structures equipped with viscous dampers (VDs), a method has been proposed to determine optimal distribution of VDs. The proposed method has been based on defining an optimization problem which minimizes the sum of damper coefficients to achieve the required equivalent viscous damper. To solve the optimization problem the distributed genetic algorithm (DGA) has been applied. To illustrate the method, three 2, 5 and 20 story steel frames equipped with linear VDs and designed using DDBD, have been considered and optimal placement of VDs has been determined. The controlled structures using uniform distribution (UD) and optimal distribution (OD) of VDs subjected to ten artificial earthquakes compatible with design spectrum and nonlinear time history analysis has been conducted. Results show that to achieve the same equivalent viscous damping for both uniform and optimal distributed VDs distribution, using OD has reduced significantly the sum of dampers coefficient (up to 30%) as well as the maximum damping force(up to 24%). Also evaluating the performance of controlled structures under different artificial records has shown that using OD has led to less control system cost while both distributions has similar performance.S. MoradpourMehdi DehestaniIranian Society of Structrual Engineering (ISSE)articleperformance-based designdirect displacement-based designfluid viscous damperoptimizationdistributed genetic algorithmBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 2 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	performance-based design direct displacement-based design fluid viscous damper optimization distributed genetic algorithm Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	performance-based design direct displacement-based design fluid viscous damper optimization distributed genetic algorithm Bridge engineering TG1-470 Building construction TH1-9745 S. Moradpour Mehdi Dehestani Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
description	In this paper to increase the efficiency of direct displacement based design (DDBD) in designing structures equipped with viscous dampers (VDs), a method has been proposed to determine optimal distribution of VDs. The proposed method has been based on defining an optimization problem which minimizes the sum of damper coefficients to achieve the required equivalent viscous damper. To solve the optimization problem the distributed genetic algorithm (DGA) has been applied. To illustrate the method, three 2, 5 and 20 story steel frames equipped with linear VDs and designed using DDBD, have been considered and optimal placement of VDs has been determined. The controlled structures using uniform distribution (UD) and optimal distribution (OD) of VDs subjected to ten artificial earthquakes compatible with design spectrum and nonlinear time history analysis has been conducted. Results show that to achieve the same equivalent viscous damping for both uniform and optimal distributed VDs distribution, using OD has reduced significantly the sum of dampers coefficient (up to 30%) as well as the maximum damping force(up to 24%). Also evaluating the performance of controlled structures under different artificial records has shown that using OD has led to less control system cost while both distributions has similar performance.
format	article
author	S. Moradpour Mehdi Dehestani
author_facet	S. Moradpour Mehdi Dehestani
author_sort	S. Moradpour
title	Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
title_short	Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
title_full	Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
title_fullStr	Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
title_full_unstemmed	Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures
title_sort	optimal distribution of viscous dampers(vds) in direct displacement-based design (ddbd) of controlled structures
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/0bd933be279049a1af8b9adf826db6bb
work_keys_str_mv	AT smoradpour optimaldistributionofviscousdampersvdsindirectdisplacementbaseddesignddbdofcontrolledstructures AT mehdidehestani optimaldistributionofviscousdampersvdsindirectdisplacementbaseddesignddbdofcontrolledstructures
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Optimal distribution of viscous dampers(VDs) in direct displacement-based design (DDBD) of controlled structures

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