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Article: Non-planar beam-wall joints in tall building structures

TitleNon-planar beam-wall joints in tall building structures
Authors
KeywordsBeams And Girders
Issue Date2000
PublisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.structuresandbuildings.com
Citation
Proceedings Of The Institution Of Civil Engineers: Structures And Buildings, 2000, v. 140 n. 1, p. 73-83 How to Cite?
AbstractStress concentration and local deformation occur at both coplanar and non-planar beam-wall joints. However, over the years, only coplanar joints have been studied in detail. Very few studies on non-planar joints have been carried out and most designers still treat non-planar joints as hinges and neglect the possible coupling effect of beams connected to such joints. There is also no established method for detailed design of non-planar joints. Herein, a parametric study of the behaviour of non-planar beam-wall joints using finite-element analysis is described. On the basis of numerical results, a simple equivalent-frame model is developed. Examples are given to illustrate its applications and the results show that the coupling effect of beams connected to non-planar joints can be very substantial. Moreover, in order to avoid cracking at the joints, it is proposed that in the detailed design (a) the concentrated out-of-plane moment acting from the beam on the wall should be catered for by designing a vertical strip of the wall, having a width as determined in the present study, as a column to resist such a moment; and (b) the bending moment induced in the beam should be properly allowed for and the longitudinal reinforcement so provided adequately anchored into the wall. | Stress concentration and local deformation occur at both coplanar and non-planar beam-wall joints. However, over the years, only coplanar joints have been studied in detail. Very few studies on non-planar joints have been carried out and most designers still treat non-planar joints as hinges and neglect the possible coupling effect of beams connected to such joints. There is also no established method for detailed design of non-planar joints. Herein, a parametric study of the behaviour of non-planar beam-wall joints using finite-element analysis is described. On the basis of numerical results, a simple equivalent-frame model is developed. Examples are given to illustrate its applications and the results show that the coupling effect of beams connected to non-planar joints can be very substantial. Moreover, in order to avoid cracking at the joints, it is proposed that in the detailed design (a) the concentrated out-of-plane moment acting from the beam on the wall should be catered for by designing a vertical strip of the wall, having a width as determined in the present study, as a column to resist such a moment; and (b) the bending moment induced in the beam should be properly allowed for and the longitudinal reinforcement so provided adequately anchored into the wall.
Persistent Identifierhttp://hdl.handle.net/10722/150154
ISSN
2015 Impact Factor: 0.429
2015 SCImago Journal Rankings: 0.323
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_US
dc.contributor.authorChan, WTen_US
dc.date.accessioned2012-06-26T06:01:54Z-
dc.date.available2012-06-26T06:01:54Z-
dc.date.issued2000en_US
dc.identifier.citationProceedings Of The Institution Of Civil Engineers: Structures And Buildings, 2000, v. 140 n. 1, p. 73-83en_US
dc.identifier.issn0965-0911en_US
dc.identifier.urihttp://hdl.handle.net/10722/150154-
dc.description.abstractStress concentration and local deformation occur at both coplanar and non-planar beam-wall joints. However, over the years, only coplanar joints have been studied in detail. Very few studies on non-planar joints have been carried out and most designers still treat non-planar joints as hinges and neglect the possible coupling effect of beams connected to such joints. There is also no established method for detailed design of non-planar joints. Herein, a parametric study of the behaviour of non-planar beam-wall joints using finite-element analysis is described. On the basis of numerical results, a simple equivalent-frame model is developed. Examples are given to illustrate its applications and the results show that the coupling effect of beams connected to non-planar joints can be very substantial. Moreover, in order to avoid cracking at the joints, it is proposed that in the detailed design (a) the concentrated out-of-plane moment acting from the beam on the wall should be catered for by designing a vertical strip of the wall, having a width as determined in the present study, as a column to resist such a moment; and (b) the bending moment induced in the beam should be properly allowed for and the longitudinal reinforcement so provided adequately anchored into the wall. | Stress concentration and local deformation occur at both coplanar and non-planar beam-wall joints. However, over the years, only coplanar joints have been studied in detail. Very few studies on non-planar joints have been carried out and most designers still treat non-planar joints as hinges and neglect the possible coupling effect of beams connected to such joints. There is also no established method for detailed design of non-planar joints. Herein, a parametric study of the behaviour of non-planar beam-wall joints using finite-element analysis is described. On the basis of numerical results, a simple equivalent-frame model is developed. Examples are given to illustrate its applications and the results show that the coupling effect of beams connected to non-planar joints can be very substantial. Moreover, in order to avoid cracking at the joints, it is proposed that in the detailed design (a) the concentrated out-of-plane moment acting from the beam on the wall should be catered for by designing a vertical strip of the wall, having a width as determined in the present study, as a column to resist such a moment; and (b) the bending moment induced in the beam should be properly allowed for and the longitudinal reinforcement so provided adequately anchored into the wall.en_US
dc.languageengen_US
dc.publisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.structuresandbuildings.comen_US
dc.relation.ispartofProceedings of the Institution of Civil Engineers: Structures and Buildingsen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees-
dc.subjectBeams And Girdersen_US
dc.titleNon-planar beam-wall joints in tall building structuresen_US
dc.typeArticleen_US
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_US
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1680/stbu.2000.140.1.73-
dc.identifier.scopuseid_2-s2.0-0034004722en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034004722&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume140en_US
dc.identifier.issue1en_US
dc.identifier.spage73en_US
dc.identifier.epage83en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridKwan, AKH=7101738204en_US
dc.identifier.scopusauthoridChan, WT=7403918126en_US

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