Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/91029
PIRA download icon_1.1View/Download Full Text
DC FieldValueLanguage
dc.contributorDepartment of Civil and Environmental Engineeringen_US
dc.creatorZhou, Fen_US
dc.creatorCai, Yen_US
dc.creatorXu, JFen_US
dc.creatorChen, Yen_US
dc.creatorChen, Yen_US
dc.date.accessioned2021-09-06T03:06:47Z-
dc.date.available2021-09-06T03:06:47Z-
dc.identifier.issn0141-0296en_US
dc.identifier.urihttp://hdl.handle.net/10397/91029-
dc.language.isoenen_US
dc.publisherPergamon Pressen_US
dc.rights© 2021 Elsevier Ltd. All rights reserved.en_US
dc.rights© 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.en_US
dc.rightsThe following publication Zhou, F., et al. (2021). "Experimental and numerical investigations on pre-twisted steel box-section columns." Engineering Structures 246: 112996 is available at https://dx.doi.org/10.1016/j.engstruct.2021.112996.en_US
dc.subjectExperimental investigationen_US
dc.subjectFinite element analysisen_US
dc.subjectPre-twisted columnen_US
dc.subjectSteel box-sectionen_US
dc.subjectUltimate loaden_US
dc.titleExperimental and numerical investigations on pre-twisted steel box-section columnsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume246en_US
dc.identifier.doi10.1016/j.engstruct.2021.112996en_US
dcterms.abstractExperimental and numerical investigations on pre-twisted steel box-section columns are presented in this paper. A series of tests was conducted to investigate the effects of pre-twisted angle ratio on the compressive behaviour of steel box-section columns. The pre-twisted angle ratios of 3°/m and 15°/m were considered in the design of column specimens. The column specimens had effective lengths of 1.5 m and 4.0 m, and cross-section dimensions of 280 × 100 (depth × width) mm and 350 × 120 mm. A non-linear finite element model (FEM) considering geometric imperfections was developed. The results from the finite element analysis were compared with those from the column tests in terms of ultimate loads, failure modes and load-deformation curves. After successful verification, the FEM was employed to conduct an extensive parametric study on the structural behaviour of pre-twisted steel box-section columns. The key parameters in the parametric study included the pre-twisted angle ratios, ratios of depth to width in cross section, effective column lengths and end boundary conditions. It was shown that the pre-twisted angle ratios had little effect on the axial capacity, initial stiffness and lateral deformation capacity of shorter columns that failed by plastic yielding; however, more significant effects were found for the longer columns that failed by elastic flexural buckling. Theoretical analysis on the elastic buckling of pre-twisted steel box-section columns was conducted. Based on which, the formula for the buckling coefficient (reduction factor) was proposed that was suitable for the prediction of ultimate strength of pre-twisted steel box-section column.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationEngineering structures, 1 Nov. 2021, v. 246, 12996en_US
dcterms.isPartOfEngineering structuresen_US
dcterms.issued2021-11-01-
dc.identifier.scopus2-s2.0-85113178114-
dc.identifier.eissn1873-7323en_US
dc.identifier.artn112996en_US
dc.description.validate202109 bcvcen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumbera1019-n01-
dc.identifier.SubFormID2443-
dc.description.fundingSourceOthersen_US
dc.description.fundingTextThe research work described in this paper was supported by research grants from the State Key Laboratory for Disaster Prevention in Civil Engineering (Grant No.: SLDRCE19-B-07).en_US
dc.description.pubStatusPublisheden_US
Appears in Collections:Journal/Magazine Article
Files in This Item:
File Description SizeFormat 
2023.11.01_a1019-n01_2443_(added header)_Pre-twisted columns_20210825.pdfPre-Published version1.65 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Final Accepted Manuscript
Access
View full-text via PolyU eLinks SFX Query
Show simple item record

Page views

119
Last Week
2
Last month
Citations as of Jun 16, 2024

Downloads

12
Citations as of Jun 16, 2024

SCOPUSTM   
Citations

3
Citations as of Jun 7, 2024

WEB OF SCIENCETM
Citations

2
Citations as of Jun 13, 2024

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.