Semi-active Outrigger Damping System for Seismic Protection of Building Structure

The outrigger structural system is one of the most widely used lateral load-resisting structural systems for high-rise buildings. To increase the energy dissipation capacity of the outrigger system, an outrigger damping system has been proposed as a novel energy dissipation system. In this system, t...

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Main Authors: Hyun-Su Kim, Joo-Won Kang
Format: Article
Language:English
Published: Taylor & Francis Group 2017-01-01
Series:Journal of Asian Architecture and Building Engineering
Subjects:
Online Access:http://dx.doi.org/10.3130/jaabe.16.201
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author Hyun-Su Kim
Joo-Won Kang
author_facet Hyun-Su Kim
Joo-Won Kang
author_sort Hyun-Su Kim
collection DOAJ
description The outrigger structural system is one of the most widely used lateral load-resisting structural systems for high-rise buildings. To increase the energy dissipation capacity of the outrigger system, an outrigger damping system has been proposed as a novel energy dissipation system. In this system, the outrigger and perimeter columns are separate and vertical viscous dampers are equipped between the outrigger and perimeter columns. In this study, the control performance of a semi-active outrigger damping system for the seismic protection of a building structure was investigated. Semi-active damping devices, such as magnetorheological (MR) dampers instead of passive dampers, are installed vertically between the outrigger and perimeter columns to achieve large and adaptable energy dissipation. A fuzzy logic control algorithm was used to generate a command voltage sent to the semi-active MR dampers. A genetic algorithm was used to optimize the fuzzy logic controller. An artificial earthquake load was generated for the numerical simulation and a simplified numerical model of a damped outrigger system was developed. Numerical analyses showed that the semi-active damped outrigger system could effectively reduce both the displacement and acceleration responses of the tall buildings compared to a passive outrigger damper system.
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spelling doaj.art-5e29a7da74a54781a8ec7550d8a42aa82023-08-03T09:15:31ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522017-01-0116120120810.3130/jaabe.16.20112029077Semi-active Outrigger Damping System for Seismic Protection of Building StructureHyun-Su Kim0Joo-Won Kang1Architectural and Civil Engineering, Sunmoon UniversityYeungnam UniversityThe outrigger structural system is one of the most widely used lateral load-resisting structural systems for high-rise buildings. To increase the energy dissipation capacity of the outrigger system, an outrigger damping system has been proposed as a novel energy dissipation system. In this system, the outrigger and perimeter columns are separate and vertical viscous dampers are equipped between the outrigger and perimeter columns. In this study, the control performance of a semi-active outrigger damping system for the seismic protection of a building structure was investigated. Semi-active damping devices, such as magnetorheological (MR) dampers instead of passive dampers, are installed vertically between the outrigger and perimeter columns to achieve large and adaptable energy dissipation. A fuzzy logic control algorithm was used to generate a command voltage sent to the semi-active MR dampers. A genetic algorithm was used to optimize the fuzzy logic controller. An artificial earthquake load was generated for the numerical simulation and a simplified numerical model of a damped outrigger system was developed. Numerical analyses showed that the semi-active damped outrigger system could effectively reduce both the displacement and acceleration responses of the tall buildings compared to a passive outrigger damper system.http://dx.doi.org/10.3130/jaabe.16.201damped outrigger systemmr damperseismic response controlfuzzy logic controllermulti-objective optimization
spellingShingle Hyun-Su Kim
Joo-Won Kang
Semi-active Outrigger Damping System for Seismic Protection of Building Structure
Journal of Asian Architecture and Building Engineering
damped outrigger system
mr damper
seismic response control
fuzzy logic controller
multi-objective optimization
title Semi-active Outrigger Damping System for Seismic Protection of Building Structure
title_full Semi-active Outrigger Damping System for Seismic Protection of Building Structure
title_fullStr Semi-active Outrigger Damping System for Seismic Protection of Building Structure
title_full_unstemmed Semi-active Outrigger Damping System for Seismic Protection of Building Structure
title_short Semi-active Outrigger Damping System for Seismic Protection of Building Structure
title_sort semi active outrigger damping system for seismic protection of building structure
topic damped outrigger system
mr damper
seismic response control
fuzzy logic controller
multi-objective optimization
url http://dx.doi.org/10.3130/jaabe.16.201
work_keys_str_mv AT hyunsukim semiactiveoutriggerdampingsystemforseismicprotectionofbuildingstructure
AT joowonkang semiactiveoutriggerdampingsystemforseismicprotectionofbuildingstructure