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Article: Interference effects on wind loading of a row of closely spaced tall buildings

TitleInterference effects on wind loading of a row of closely spaced tall buildings
Authors
KeywordsChanneling
Interference Effect
Sheltering
Wind Loads
Wind Pressure
Wind Tunnel Testing
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweia
Citation
Journal Of Wind Engineering And Industrial Aerodynamics, 2008, v. 96 n. 5, p. 562-583 How to Cite?
AbstractInterference effects on a row of square-plan tall buildings arranged in close proximity are investigated with wind tunnel experiments. Wind forces and moments on each building in the row are measured with the base balance under different wind incidence angles and different separation distances between buildings. As a result of sheltering, inner buildings inside the row are found to experience much reduced wind load components acting along direction of the row (x) at most wind angles, as compared to the isolated building situation. However, these load components may exhibit phenomena of upwind-acting force and even negative drag force. Increase in x-direction wind loads is observed on the upwind edge building when wind blows at an oblique angle to the row. Other interference effects on y-direction wind loads and torsion are described. Pressure measurements on building walls and numerical computation of wind flow are carried out at some flow cases to explore the interference mechanisms. At wind angle around 30° to the row, wind is visualized to flow through the narrow building gaps at high speeds, resulting in highly negative pressure on associated building walls. This negative pressure and the single-wake behavior of flow over the row of buildings provide explanations for the observed interference effects. Interference on fluctuating wind loads is also investigated. Across-wind load fluctuations are much smaller than the isolated building case with the disappearance of vortex shedding peak in the load spectra. Buildings in a row thus do not exhibit resonant across-wind response at reduced velocities around 10 as an isolated square-plan tall building. © 2008 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150452
ISSN
2015 Impact Factor: 2.024
2015 SCImago Journal Rankings: 1.097
ISI Accession Number ID
References
Errata

 

DC FieldValueLanguage
dc.contributor.authorLam, KMen_US
dc.contributor.authorH Leung, MYen_US
dc.contributor.authorZhao, JGen_US
dc.date.accessioned2012-06-26T06:04:53Z-
dc.date.available2012-06-26T06:04:53Z-
dc.date.issued2008en_US
dc.identifier.citationJournal Of Wind Engineering And Industrial Aerodynamics, 2008, v. 96 n. 5, p. 562-583en_US
dc.identifier.issn0167-6105en_US
dc.identifier.urihttp://hdl.handle.net/10722/150452-
dc.description.abstractInterference effects on a row of square-plan tall buildings arranged in close proximity are investigated with wind tunnel experiments. Wind forces and moments on each building in the row are measured with the base balance under different wind incidence angles and different separation distances between buildings. As a result of sheltering, inner buildings inside the row are found to experience much reduced wind load components acting along direction of the row (x) at most wind angles, as compared to the isolated building situation. However, these load components may exhibit phenomena of upwind-acting force and even negative drag force. Increase in x-direction wind loads is observed on the upwind edge building when wind blows at an oblique angle to the row. Other interference effects on y-direction wind loads and torsion are described. Pressure measurements on building walls and numerical computation of wind flow are carried out at some flow cases to explore the interference mechanisms. At wind angle around 30° to the row, wind is visualized to flow through the narrow building gaps at high speeds, resulting in highly negative pressure on associated building walls. This negative pressure and the single-wake behavior of flow over the row of buildings provide explanations for the observed interference effects. Interference on fluctuating wind loads is also investigated. Across-wind load fluctuations are much smaller than the isolated building case with the disappearance of vortex shedding peak in the load spectra. Buildings in a row thus do not exhibit resonant across-wind response at reduced velocities around 10 as an isolated square-plan tall building. © 2008 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweiaen_US
dc.relation.ispartofJournal of Wind Engineering and Industrial Aerodynamicsen_US
dc.subjectChannelingen_US
dc.subjectInterference Effecten_US
dc.subjectShelteringen_US
dc.subjectWind Loadsen_US
dc.subjectWind Pressureen_US
dc.subjectWind Tunnel Testingen_US
dc.titleInterference effects on wind loading of a row of closely spaced tall buildingsen_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.jweia.2008.01.010en_US
dc.identifier.scopuseid_2-s2.0-43749104093en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-43749104093&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume96en_US
dc.identifier.issue5en_US
dc.identifier.spage562en_US
dc.identifier.epage583en_US
dc.identifier.eissn1872-8197-
dc.identifier.isiWOS:000257043300006-
dc.publisher.placeNetherlandsen_US
dc.relation.erratumdoi:10.1016/j.jweia.2009.04.001-
dc.identifier.scopusauthoridLam, KM=7403656958en_US
dc.identifier.scopusauthoridH Leung, MY=24280223500en_US
dc.identifier.scopusauthoridZhao, JG=15746105900en_US

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