@article{ref1,
title="Structural fire performance of concrete-filled built-up cold-formed steel columns",
journal="Materials (Basel, Switzerland)",
year="2022",
author="Craveiro, Hélder D. and Rahnavard, Rohola and Henriques, José and Simões, Rui A.",
volume="15",
number="6",
pages="e2159-e2159",
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.<p /> <p>Language: en</p>",
language="en",
issn="1996-1944",
doi="10.3390/ma15062159",
url="http://dx.doi.org/10.3390/ma15062159"
}