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Experimental study on a highly efficient shear transfer system for square CFST

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Article publicat (3,783Mb)
 
10.1016/j.jcsr.2023.107905
 
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hdl:2117/386946

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Soltanalipour, MiladMés informacióMés informacióMés informació
Ferrer Ballester, MiquelMés informacióMés informacióMés informació
Marimón Carvajal, FedericoMés informacióMés informacióMés informació
Albareda Valls, AlbertMés informacióMés informacióMés informació
Casafont Ribera, MiguelMés informacióMés informacióMés informació
Iglesias, Gorka
Document typeArticle
Defense date2023-03-16
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 4.0 International
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
A new shear transfer system for CFST columns is studied, which is an application of the patent EP2305911B1 into the square CFST columns. The new optimized system, called UPCCFST, consists of crown-shaped protrusions on the steel sheet oriented towards the side that remains in contact with the concrete. Initial tests have been conducted to study the failure modes and optimize the design. The optimized design is considered the default characteristic of the experimental campaign, consisting of 56 push-out test specimens. The following parameters have been analyzed: connection system, punch density, concrete type, punch arrangement and cross-section dimensions. The UPCCFST system with the optimum punch density (HD) has shown a steel-concrete shear strength, tu, 12.31 and 2.95 times higher than the conventional flat CFST in 200 × 4 and 110 × 2 specimens, respectively. Regarding the slip energy, the UPCCFST specimens absorbed 8.1 and 3.6 times more energy than the respective flat CFST specimens.
CitationSoltanalipour, M. [et al.]. Experimental study on a highly efficient shear transfer system for square CFST. "Journal of constructional steel research", 16 Març 2023, vol. 205, núm. 107905, p. 1-18. 
URIhttp://hdl.handle.net/2117/386946
DOI10.1016/j.jcsr.2023.107905
ISSN1873-5983
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0143974X23001323
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  • REMM - Recerca en Estructures i Mecànica de Materials - Articles de revista [130]
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