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Article: Mode shape correction for wind-induced dynamic responses of tall buildings using time-domain computation and wind tunnel tests

TitleMode shape correction for wind-induced dynamic responses of tall buildings using time-domain computation and wind tunnel tests
Authors
Issue Date2009
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jsvi
Citation
Journal Of Sound And Vibration, 2009, v. 322 n. 4-5, p. 740-755 How to Cite?
Abstract
The high-frequency force-balance (HFFB) technique is a common and effective wind tunnel testing method for the assessment of wind-induced dynamic responses of a tall building. The technique works in the frequency domain with the inherent assumption of ideal mode shapes so that the base moments can approximate the generalized forces. In this study, time histories of wind forces at several levels of a tall building model are obtained in the wind tunnel with a multi-channel pressure scanning system. This enables the building responses to be computed directly in the time domain for buildings with non-ideal mode shapes. Mode shape correction factors for the HFFB technique are thus obtained for the dynamic deflections and moments. The dependence of the mode shape correction factors on mode shapes and vertical distributions of wind excitation and building masses is investigated systematically. These correction factors are found to agree generally with the predictions proposed in previous studies but some differences are noted on the commonly assumed profiles of wind excitation and correction for torsion. © 2008 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150490
ISSN
2013 Impact Factor: 1.857
ISI Accession Number ID
Funding AgencyGrant Number
HKUST1/04C
Research Grants Council of Hong Kong
Funding Information:

The investigation is a component of a group research project, HKUST 1/04C, supported by the Research Grants Council of Hong Kong.

References

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorLam, KMen_US
dc.contributor.authorLi, Aen_US
dc.date.accessioned2012-06-26T06:05:08Z-
dc.date.available2012-06-26T06:05:08Z-
dc.date.issued2009en_US
dc.identifier.citationJournal Of Sound And Vibration, 2009, v. 322 n. 4-5, p. 740-755en_US
dc.identifier.issn0022-460Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/150490-
dc.description.abstractThe high-frequency force-balance (HFFB) technique is a common and effective wind tunnel testing method for the assessment of wind-induced dynamic responses of a tall building. The technique works in the frequency domain with the inherent assumption of ideal mode shapes so that the base moments can approximate the generalized forces. In this study, time histories of wind forces at several levels of a tall building model are obtained in the wind tunnel with a multi-channel pressure scanning system. This enables the building responses to be computed directly in the time domain for buildings with non-ideal mode shapes. Mode shape correction factors for the HFFB technique are thus obtained for the dynamic deflections and moments. The dependence of the mode shape correction factors on mode shapes and vertical distributions of wind excitation and building masses is investigated systematically. These correction factors are found to agree generally with the predictions proposed in previous studies but some differences are noted on the commonly assumed profiles of wind excitation and correction for torsion. © 2008 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jsvien_US
dc.relation.ispartofJournal of Sound and Vibrationen_US
dc.titleMode shape correction for wind-induced dynamic responses of tall buildings using time-domain computation and wind tunnel testsen_US
dc.typeArticleen_US
dc.identifier.emailLam, KM:kmlam@hku.hken_US
dc.identifier.authorityLam, KM=rp00134en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.jsv.2008.11.049en_US
dc.identifier.scopuseid_2-s2.0-63549098519en_US
dc.identifier.hkuros170301-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-63549098519&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume322en_US
dc.identifier.issue4-5en_US
dc.identifier.spage740en_US
dc.identifier.epage755en_US
dc.identifier.isiWOS:000265793300008-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLam, KM=7403656958en_US
dc.identifier.scopusauthoridLi, A=24338209600en_US

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