Experimental study of aerodynamic damping of a twisted supertall building SCIE SCOPUS

DC Field Value Language
dc.contributor.author Kim, Wonsul -
dc.contributor.author Yoshida, Akihito -
dc.contributor.author Tamura, Yukio -
dc.contributor.author Yi, Jin-Hak -
dc.date.accessioned 2020-04-16T08:55:18Z -
dc.date.available 2020-04-16T08:55:18Z -
dc.date.created 2020-01-28 -
dc.date.issued 2018-05 -
dc.identifier.issn 0167-6105 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/929 -
dc.description.abstract The aerodynamic damping ratios and aeroelastic instability of a 180 degrees helical supertall building with good aerodynamic behavior in both the along-wind and across-wind responses were investigated using an aeroelastic model test (rocking vibration model test). The aerodynamic damping ratios for the 180 degrees helical and square models were evaluated using the random decrement technique. Furthermore, the effect of the triggering level and number of time segments on the evaluation of the aerodynamic damping ratio was also investigated. It was found that both the mean and fluctuating displacement responses of the 180 degrees helical model in the along- and across-wind directions showed better aerodynamic behaviors than those of the square model. Aeroelastic instability of the 180 degrees helical model was not observed at any of the reduced velocities considered in the study. In the along-wind direction, the aerodynamic damping ratios of the 180 degrees helical model exhibit similar trends to those of the square model. However, in the across-wind direction, the aerodynamic damping ratios of the 180 degrees helical model show significantly different trends than those of the square model. Furthermore, there was no effect of the variation in the wind direction on the aerodynamic damping ratio of the 180 degrees helical model. We found that in the evaluation of the aerodynamic damping ratio, it is possible to adopt the triggering level at the value of the standard deviation or root 2 times of the standard deviation of the displacement responses if the random decrement signature has a high number of triggering points. -
dc.description.uri 1 -
dc.language English -
dc.publisher ELSEVIER SCIENCE BV -
dc.subject WIND-INDUCED RESPONSE -
dc.subject TALL BUILDINGS -
dc.subject HIGHRISE BUILDINGS -
dc.subject FORCE -
dc.subject LOADS -
dc.title Experimental study of aerodynamic damping of a twisted supertall building -
dc.type Article -
dc.citation.endPage 12 -
dc.citation.startPage 1 -
dc.citation.title JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS -
dc.citation.volume 176 -
dc.contributor.alternativeName 이진학 -
dc.identifier.bibliographicCitation JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, v.176, pp.1 - 12 -
dc.identifier.doi 10.1016/j.jweia.2018.03.005 -
dc.identifier.scopusid 2-s2.0-85043449621 -
dc.identifier.wosid 000432502100001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus WIND-INDUCED RESPONSE -
dc.subject.keywordPlus TALL BUILDINGS -
dc.subject.keywordPlus HIGHRISE BUILDINGS -
dc.subject.keywordPlus FORCE -
dc.subject.keywordPlus LOADS -
dc.subject.keywordAuthor Random decrement technique -
dc.subject.keywordAuthor Wind-induced response -
dc.subject.keywordAuthor Supertall building -
dc.subject.keywordAuthor Wind tunnel test -
dc.subject.keywordAuthor Aerodynamic damping -
dc.subject.keywordAuthor Structural damping -
dc.relation.journalWebOfScienceCategory Engineering, Civil -
dc.relation.journalWebOfScienceCategory Mechanics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Engineering -
dc.relation.journalResearchArea Mechanics -
Appears in Collections:
Marine Industry Research Division > Ocean Space Development & Energy Research Department > 1. Journal Articles
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