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|Title:||Structural Fire Performance of Concrete-Filled Built-Up Cold-Formed Steel Columns||Authors:||Craveiro, Hélder D.
Simões, Rui A.
|Keywords:||cold-formed steel; built-up section; concrete-filled; load-bearing capacity; local-global buckling interaction; global buckling; fastener spacing||Issue Date:||15-Mar-2022||Project:||FCT - 2020.03588.CEECIND
FCT - research project PTDC/ECI-EGC/31858/2017—INNOCFSCONC—innovative hybrid structural solutions using cold-formed steel and lightweight concrete financed by FEDER funds through the Competitivity Factors Operational Programme-COMPETE and by national funds through FCT, PCIF/AGT/0062/2018—INTERFACESEGURA—Segurança e Resiliência ao Fogo das Zonas e Interface Urbana-Florestal
|Serial title, monograph or event:||Materials||Volume:||15||Issue:||6||Abstract:||Concrete-filled composite columns are widely used in the construction industry, exploiting the benefits of combining steel and concrete, providing, for instance, high load-bearing capacities and enhanced fire resistance. These solutions are extensively used in high-rise buildings and/or when high fire resistance performance requirements are imposed. In this exploratory research, a new type of concrete-filled composite column is investigated using fire resistance tests. Promoting the use of cold-formed steel products and developing innovative solutions for low-rise buildings with lower passive fire protection requirements led to the solutions presented in this research. Hence, a set of fire-resistance tests were undertaken on concrete-filled closed built-up cold-formed steel columns, where single cold-formed steel shapes are combined and fastened to create a box-shaped cross-section. The experimental results were then compared with the corresponding bare steel solutions to assess, in detail, the observed enhancements. Additionally, the effect of restraint on thermal elongation was assessed.||URI:||http://hdl.handle.net/10316/103358||ISSN:||1996-1944||DOI:||10.3390/ma15062159||Rights:||openAccess|
|Appears in Collections:||I&D ISISE - Artigos em Revistas Internacionais|
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