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Article: Wind-induced loading and dynamic responses of a row of tall buildings under strong interference

TitleWind-induced loading and dynamic responses of a row of tall buildings under strong interference
Authors
KeywordsDynamic responses
Interference effect
Wind tunnel testing
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweia
Citation
Journal Of Wind Engineering And Industrial Aerodynamics, 2011, v. 99 n. 5, p. 573-583 How to Cite?
AbstractThis paper studies wind-induced interference effects on a row of five square-plan tall buildings arranged in close proximity. Mean and fluctuating wind loads are measured on each building member and wind-induced dynamic responses of the building are estimated with the high-frequency force-balance technique. The modifications of building responses from interference over a practical range of reduced velocities are represented by an envelope interference factor. Wind tunnel experiments and response analysis are carried out under all possible angles of wind incidence, at four different building separation distances, and for two arrangement patterns of buildings in the row, that is the parallel and diamond patterns. It is found that building interference leads to amplified dynamic responses in many cases but reduction in responses also occurs at some wind incidence. For a building row of the parallel pattern, five distinct wind incidence sectors of different levels and mechanisms of interference effect can be identified. The largest values of envelope interference factors can reach 2.4 for the torsional responses. When the row of tall buildings is arranged in the diamond pattern, increase in wind excitation occurs at many wind angles due to a "wind catchment" effect. The interference factors have larger peak values, reaching 2.1 in the sway directions and above 4 in torsion. However, all large amplifications of building responses do not occur in the situations of peak resonant dynamic responses of the single isolated building. Thus, the design values of peak dynamic responses of a tall building are not significantly magnified when placed in a row. © 2011 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/137247
ISSN
2015 Impact Factor: 2.024
2015 SCImago Journal Rankings: 1.097
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong KongHKU7014/02E
Funding Information:

The investigation is supported by a research grant (HKU7014/02E) awarded by the Research Grants Council of Hong Kong.

References

 

DC FieldValueLanguage
dc.contributor.authorLam, KMen_HK
dc.contributor.authorZhao, JGen_HK
dc.contributor.authorLeung, MYHen_HK
dc.date.accessioned2011-08-26T14:21:44Z-
dc.date.available2011-08-26T14:21:44Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Wind Engineering And Industrial Aerodynamics, 2011, v. 99 n. 5, p. 573-583en_HK
dc.identifier.issn0167-6105en_HK
dc.identifier.urihttp://hdl.handle.net/10722/137247-
dc.description.abstractThis paper studies wind-induced interference effects on a row of five square-plan tall buildings arranged in close proximity. Mean and fluctuating wind loads are measured on each building member and wind-induced dynamic responses of the building are estimated with the high-frequency force-balance technique. The modifications of building responses from interference over a practical range of reduced velocities are represented by an envelope interference factor. Wind tunnel experiments and response analysis are carried out under all possible angles of wind incidence, at four different building separation distances, and for two arrangement patterns of buildings in the row, that is the parallel and diamond patterns. It is found that building interference leads to amplified dynamic responses in many cases but reduction in responses also occurs at some wind incidence. For a building row of the parallel pattern, five distinct wind incidence sectors of different levels and mechanisms of interference effect can be identified. The largest values of envelope interference factors can reach 2.4 for the torsional responses. When the row of tall buildings is arranged in the diamond pattern, increase in wind excitation occurs at many wind angles due to a "wind catchment" effect. The interference factors have larger peak values, reaching 2.1 in the sway directions and above 4 in torsion. However, all large amplifications of building responses do not occur in the situations of peak resonant dynamic responses of the single isolated building. Thus, the design values of peak dynamic responses of a tall building are not significantly magnified when placed in a row. © 2011 Elsevier Ltd.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweiaen_HK
dc.relation.ispartofJournal of Wind Engineering and Industrial Aerodynamicsen_HK
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Wind Engineering & Industrial Aerodynamics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Wind Engineering & Industrial Aerodynamics, 2011, v. 99 n. 5, p. 573-583. DOI: 10.1016/j.jweia.2011.02.006-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectDynamic responsesen_HK
dc.subjectInterference effecten_HK
dc.subjectWind tunnel testingen_HK
dc.titleWind-induced loading and dynamic responses of a row of tall buildings under strong interferenceen_HK
dc.typeArticleen_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.jweia.2011.02.006en_HK
dc.identifier.scopuseid_2-s2.0-79955667314en_HK
dc.identifier.hkuros190700en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955667314&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume99en_HK
dc.identifier.issue5en_HK
dc.identifier.spage573en_HK
dc.identifier.epage583en_HK
dc.identifier.isiWOS:000291374400006-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK
dc.identifier.scopusauthoridZhao, JG=15746105900en_HK
dc.identifier.scopusauthoridLeung, MYH=24280223500en_HK
dc.identifier.citeulike9230376-

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