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Article: Improved wide-column-frame analogy for shear/core wall analysis

TitleImproved wide-column-frame analogy for shear/core wall analysis
Authors
Issue Date1993
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.html
Citation
Journal Of Structural Engineering New York, N.Y., 1993, v. 119 n. 2, p. 420-437 How to Cite?
AbstractThe wide-column-frame analog is popular in design offices for the analysis of shear/core wall buildings. However, it has been found to yield erroneous results in cases where shear deformation of the walls is significant, e.g. core walls subjected to torsion. There are two sources of error. First, due to discrete modeling of the vertical joints between adjacent planar wall units, the wall elements are subjected to parasitic moments, which cause artificial flexure of the elements and eventually excessive shear deformation of the walls. Second, the rotations of the coupling beams at the beam-wall joints have been mistaken as equal to the rotations of the horizontal rigid arms and, as a result, the beam end rotations are under-estimated by amount equal to the shear strain in the walls. It is proposed that these problems be resolved by: (1) Adjusting the shear deformation factor of the wall elements to compensate for the errors in shear deformations due to artificial flexure; and (2) using beam elements with vertical rigid arms for the coupling beams, so as to eliminate the errors in beam end rotations. Substantial improvement in accuracy is achieved with these modifications.
Persistent Identifierhttp://hdl.handle.net/10722/150001
ISSN
2015 Impact Factor: 1.7
2015 SCImago Journal Rankings: 1.431

 

DC FieldValueLanguage
dc.contributor.authorKwan, KHen_US
dc.date.accessioned2012-06-26T06:01:01Z-
dc.date.available2012-06-26T06:01:01Z-
dc.date.issued1993en_US
dc.identifier.citationJournal Of Structural Engineering New York, N.Y., 1993, v. 119 n. 2, p. 420-437en_US
dc.identifier.issn0733-9445en_US
dc.identifier.urihttp://hdl.handle.net/10722/150001-
dc.description.abstractThe wide-column-frame analog is popular in design offices for the analysis of shear/core wall buildings. However, it has been found to yield erroneous results in cases where shear deformation of the walls is significant, e.g. core walls subjected to torsion. There are two sources of error. First, due to discrete modeling of the vertical joints between adjacent planar wall units, the wall elements are subjected to parasitic moments, which cause artificial flexure of the elements and eventually excessive shear deformation of the walls. Second, the rotations of the coupling beams at the beam-wall joints have been mistaken as equal to the rotations of the horizontal rigid arms and, as a result, the beam end rotations are under-estimated by amount equal to the shear strain in the walls. It is proposed that these problems be resolved by: (1) Adjusting the shear deformation factor of the wall elements to compensate for the errors in shear deformations due to artificial flexure; and (2) using beam elements with vertical rigid arms for the coupling beams, so as to eliminate the errors in beam end rotations. Substantial improvement in accuracy is achieved with these modifications.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/st.htmlen_US
dc.relation.ispartofJournal of structural engineering New York, N.Y.en_US
dc.titleImproved wide-column-frame analogy for shear/core wall analysisen_US
dc.typeArticleen_US
dc.identifier.emailKwan, KH:khkwan@hkucc.hku.hken_US
dc.identifier.authorityKwan, KH=rp00127en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0027541988en_US
dc.identifier.volume119en_US
dc.identifier.issue2en_US
dc.identifier.spage420en_US
dc.identifier.epage437en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKwan, KH=7101738204en_US

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