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dc.creatorTjahjanto, Helmy
dc.creatorMacRae, Gregory
dc.creatorAbu, Anthony
dc.creatorClifton, Charles
dc.creatorBeetham, Tessa
dc.creatorMago, Nandor
dc.date2019-09-30
dc.identifierhttps://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/258
dc.identifier10.5459/bnzsee.52.3.134-140
dc.descriptionThis paper evaluates external diaphragm axial capacity in moment frame structures with square concrete-filled steel tubular (CFST) columns considering bidirectional loading. Three design methods were considered: (1) the CIDECT method; (2) the equivalent beam method; and (3) the tie method. Finite element analyses were conducted to investigate the behaviour of an external diaphragm plate connected to a square CFST column under varied bidirectional diaphragm axial forces. It is shown that the perpendicular diaphragm axial forces did not reduce the diaphragm axial capacity significantly, which is consistent with the assumptions made by the CIDECT method and the tie method. The CIDECT method, in some cases, was not conservative. Among the considered methods, the tie method was the most justifiable method, although in some cases the capacity predictions were too conservative. The tie method was later modified by considering the contribution of the steel tube in addition to the diaphragm plate in calculating the diaphragm axial capacity. The modified tie method was shown to accurately predict a lower bound estimate of the capacity of an external diaphragm connection.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherNew Zealand Society for Earthquake Engineeringen-US
dc.relationhttps://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/258/244
dc.rightsCopyright (c) 2019 Helmy Tjahjanto, Gregory MacRae, Anthony Abu, Charles Clifton, Tessa Beetham, Nandor Magoen-US
dc.rightshttps://creativecommons.org/licenses/by/4.0en-US
dc.sourceBulletin of the New Zealand Society for Earthquake Engineering; Vol 52 No 3 (2019); 134-140en-US
dc.source2324-1543
dc.source1174-9857
dc.titleDiaphragm axial capacity for external diaphragm connections (EDCs) in square CFST column structuresen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeArticleen-US


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