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Article: Experimental and numerical investigation on post-earthquake fire behaviour of the circular concrete-filled steel tube columns

TitleExperimental and numerical investigation on post-earthquake fire behaviour of the circular concrete-filled steel tube columns
Authors
KeywordsCircular concrete-filled steel tube column
Design method
Experimental programme
Finite element
Post-earthquake fire
Issue Date2021
PublisherTechno-Press. The Journal's web site is located at http://koreascience.or.kr/journal/AboutJournal.jsp?kojic=KJKHEW
Citation
Steel and Composite Structures, 2021, v. 38 n. 1, p. 17-31 How to Cite?
AbstractPost-earthquake fire is a common disaster which causes serious safety issues to infrastructures. This study aims to investigate the residual loading capacities of circular concrete-filled steel tube (CFST) columns under post-earthquake fire experimentally and numerically. The experimental programme contains two loading steps - pre-damage cyclic loading at room temperature and transient state tests with constant compression loads. Three finite element models are developed and validated against the test results. Upon validation, a total of 48 numerical results were generated in the parametric study to investigate the effects of thickness and strengths of steel tube, axial compression ratio and damage degree on the fire resistance of circular CFST columns. Based on the analysis on experimental and numerical results, the loading mechanism of circular CFST columns is discussed. A design method is proposed for the prediction of fire resistance time under different seismic pre-damage and compression loads. The predictions by the new method is compared with the newly generated experimental and numerical results and is found to be accurate and consistent with the mean value close to the unity and a coefficient of variation around 1%.
Persistent Identifierhttp://hdl.handle.net/10722/309316
ISSN
2021 Impact Factor: 6.144
2020 SCImago Journal Rankings: 1.048

 

DC FieldValueLanguage
dc.contributor.authorWang, YH-
dc.contributor.authorTang, Q-
dc.contributor.authorSu, MN-
dc.contributor.authorTan, JK-
dc.contributor.authorWang, WY-
dc.contributor.authorLan, YS-
dc.contributor.authorDeng, X-
dc.contributor.authorBai, YT-
dc.contributor.authorLuo, W-
dc.contributor.authorLi, XH-
dc.contributor.authorBai, JL-
dc.date.accessioned2021-12-29T02:13:21Z-
dc.date.available2021-12-29T02:13:21Z-
dc.date.issued2021-
dc.identifier.citationSteel and Composite Structures, 2021, v. 38 n. 1, p. 17-31-
dc.identifier.issn1229-9367-
dc.identifier.urihttp://hdl.handle.net/10722/309316-
dc.description.abstractPost-earthquake fire is a common disaster which causes serious safety issues to infrastructures. This study aims to investigate the residual loading capacities of circular concrete-filled steel tube (CFST) columns under post-earthquake fire experimentally and numerically. The experimental programme contains two loading steps - pre-damage cyclic loading at room temperature and transient state tests with constant compression loads. Three finite element models are developed and validated against the test results. Upon validation, a total of 48 numerical results were generated in the parametric study to investigate the effects of thickness and strengths of steel tube, axial compression ratio and damage degree on the fire resistance of circular CFST columns. Based on the analysis on experimental and numerical results, the loading mechanism of circular CFST columns is discussed. A design method is proposed for the prediction of fire resistance time under different seismic pre-damage and compression loads. The predictions by the new method is compared with the newly generated experimental and numerical results and is found to be accurate and consistent with the mean value close to the unity and a coefficient of variation around 1%.-
dc.languageeng-
dc.publisherTechno-Press. The Journal's web site is located at http://koreascience.or.kr/journal/AboutJournal.jsp?kojic=KJKHEW-
dc.relation.ispartofSteel and Composite Structures-
dc.subjectCircular concrete-filled steel tube column-
dc.subjectDesign method-
dc.subjectExperimental programme-
dc.subjectFinite element-
dc.subjectPost-earthquake fire-
dc.titleExperimental and numerical investigation on post-earthquake fire behaviour of the circular concrete-filled steel tube columns-
dc.typeArticle-
dc.identifier.emailDeng, X: xwdeng@hku.hk-
dc.identifier.authorityDeng, X=rp02223-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.12989/scs.2021.38.1.017-
dc.identifier.hkuros331155-
dc.identifier.volume38-
dc.identifier.issue1-
dc.identifier.spage17-
dc.identifier.epage31-
dc.publisher.placeKorea-

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