Residual stresses of box and I-shaped columns fabricated from S960 ultra-high-strength steel

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dc.contributor.authorLi, DXen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorUy, Ben_AU
dc.contributor.authorWang, Jen_AU
dc.contributor.authorKhan, Men_AU
dc.date.accessioned2021-02-12T05:33:08Zen_AU
dc.date.available2021-02-12T05:33:08Zen_AU
dc.date.issued2019-12-24en_AU
dc.date.statistics2021-02-11en_AU
dc.description.abstractUltra-high-strength steel (UHSS) with a nominal yield stress of 960 MPa is of significant interest for the design of heavily loaded compressive members, such as high-rise buildings, long-span bridges and large-scale infrastructure. However, the residual stresses induced by the fabrication process can be detrimental to the structural members. In particular, compressive residual stresses can result in premature buckling and the ultimate strength of fabricated columns will be reduced. To date, research pertaining to the distribution of the residual stresses for UHSS column is limited. An experimental program about the measurements of residual stress distributions for UHSS box and I-shaped columns is therefore presented herein. Measurements of residual stress were undertaken on two box and two I-shaped columns having various width-to-thickness ratios by using the non-destructive neutron diffraction method. The distributions of residual stress in three orthogonal directions for each specimen was measured. The influences of column width-to-thickness ratio on residual stress distributions were investigated and discussed. In addition, simplified analytical models for the box and I-shaped column were established to facilitate the buckling analysis for such UHSS columns. Comparisons of the residual stress distributions between the experimental results and analytical model demonstrated a good agreement and this model can be safely used for the fabricated high-strength-steel (HSS) and UHSS column. Crown Copyright © 2019 Published by Elsevier Ltden_AU
dc.identifier.articlenumber105904en_AU
dc.identifier.citationLi, D., Paradowska, A., Uy, B., Wang, J., & Khan, M. (2020). Residual stresses of box and I-shaped columns fabricated from S960 ultra-high-strength steel. Journal of Constructional Steel Research, 166, 105904. doi:10.1016/j.jcsr.2019.105904en_AU
dc.identifier.issn0143-974Xen_AU
dc.identifier.journaltitleJournal of Constructional Steel Researchen_AU
dc.identifier.urihttps://doi.org/10.1016/j.jcsr.2019.105904en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10393en_AU
dc.identifier.volume166en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.subjectResidual stressesen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectNondestructive testingen_AU
dc.subjectSteelsen_AU
dc.subjectYield strengthen_AU
dc.subjectBuildingsen_AU
dc.subjectBridgesen_AU
dc.subjectFabricationen_AU
dc.subjectDeformationen_AU
dc.titleResidual stresses of box and I-shaped columns fabricated from S960 ultra-high-strength steelen_AU
dc.typeJournal Articleen_AU
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