Parametric Finite Element Analyses of Demountable Shear Connection in Cold-Formed Steel–Concrete Composite Beams

It is known that steel–concrete composite systems are very efficient. However, such steel–concrete composite systems can be optimised using cold-formed steel elements and innovative shear connections. In other words, by considering demountability and reusability, the negative impact of the built env...

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Bibliographic Details
Published in:Buildings (Basel) 2024-01, Vol.14 (2), p.324
Main Authors: Žuvelek, Vlaho, Ćurković, Ivan, Skejić, Davor, Lukačević, Ivan
Format: Article
Language:English
Subjects:
Analysis
Bolts
Built environment
built-up section
Cold working
Cold-formed steel
Composite beams
Composite materials
Concrete
Concrete slabs
demountable shear connection
Ductility
Failure modes
Finite element method
Hot rolling
Investigations
Load
Numerical analysis
shear connection
Shear strength
Slabs
Steel
Urban environments
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Summary:It is known that steel–concrete composite systems are very efficient. However, such steel–concrete composite systems can be optimised using cold-formed steel elements and innovative shear connections. In other words, by considering demountability and reusability, the negative impact of the built environment on the whole ecosystem can ultimately be reduced. This paper, therefore, presents a numerical study of an innovative solution for a composite floor system consisting of built-up cold-formed sections and concrete slabs. Through parametric numerical analysis, parameters such as the diameter and quality of bolts, the concrete class, the type of concrete slab, and the steel quality of sections and bolts were varied. The numerical analysis results show that the system with a solid concrete slab had a higher shear resistance and ductility than the system with a concrete slab made with profiled sheeting and showed different failure modes. The presented results form the basis for push-out tests for the proposed shear connection types.
ISSN:2075-5309
2075-5309
DOI:10.3390/buildings14020324