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http://hdl.handle.net/1942/37231
Title: | Structural Fire Performance of Concrete-Filled Built-Up Cold-Formed Steel Columns | Authors: | Craveiro, Helder D. Rahnavard, Rohola GOUVEIA HENRIQUES, Jose Simoes, Rui A. |
Issue Date: | 2022 | Publisher: | MDPI | Source: | MATERIALS, 15 (6) , (Art N° 2159) | 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. | Notes: | Craveiro, HD (corresponding author), Univ Coimbra, Dept Civil Engn, ISISE, Rua Luis Reis Santos, P-3030790 Coimbra, Portugal. heldercraveiro.eng@uc.pt; rahnavard@uc.pt; jose.gouveiahenriques@uhasselt.be; rads@dec.uc.pt |
Keywords: | cold-formed steel; built-up section; concrete-filled; load-bearing;capacity; local-global buckling interaction; global buckling; fastener;spacing | Document URI: | http://hdl.handle.net/1942/37231 | e-ISSN: | 1996-1944 | DOI: | 10.3390/ma15062159 | ISI #: | WOS:000775084900001 | Rights: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2023 |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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materials-15-02159-v2.pdf | Published version | 4.18 MB | Adobe PDF | View/Open |
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