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Tests of stainless steel circular tubular stub columns with seawater sea-sand concrete infill

 Tests of stainless steel circular tubular stub columns with seawater sea-sand concrete infill
Auteur(s): ,
Présenté pendant IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024, publié dans , pp. 1006-1014
DOI: 10.2749/manchester.2024.1006
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A series of cold-formed austenitic stainless steel {CFASS} circular tubular stub columns infilled with seawater sea-sand concrete {SWSSC} were designed, fabricated and tested. The CFASS circular tu...
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Détails bibliographiques

Auteur(s): (Department of Construction and Quality Management, Hong Kong Metropolitan University, Hong Kong, China)
(Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024
Publié dans:
Page(s): 1006-1014 Nombre total de pages (du PDF): 9
Page(s): 1006-1014
Nombre total de pages (du PDF): 9
DOI: 10.2749/manchester.2024.1006
Abstrait:

A series of cold-formed austenitic stainless steel {CFASS} circular tubular stub columns infilled with seawater sea-sand concrete {SWSSC} were designed, fabricated and tested. The CFASS circular tubes had 3 different cross-sections with its nominal outer diameter of 60.5, 114.3 and 165.2 mm. The concrete mixes were of strength levels 35 and 70 MPa. Axial compression tests were carried out to study their structural behaviour in terms of load-strain curve, strength, ductility and failure mode. The test results revealed that the use of SWSSC in place of conventional concrete in CFASS tubes has little effect on the structural behaviour. The test results were also compared with predictions by existing design equations in the codes. It was found that the existing design equations are either un-conservative or overly conservative. A new and more accurate design equation for axially loaded concrete-filled stainless steel circular tubular stub columns was proposed.