Behaviour of plug-and-play joints between RHS columns and CFS trusses

Journal article (2022)

Authors

T. Tankova Universidade de Coimbra

Helder Craveiro Universidade de Coimbra

Luís Carlos Silva Universidade de Coimbra

Fernando F. Ribeiro Universidade de Coimbra

Rui Simões Universidade de Coimbra

Cláudio Martins Universidade de Coimbra

Ricardo J. Costa Universidade de Coimbra

Luis S. da Silva Universidade de Coimbra

Affiliation

External organisation

Modular construction Experimental tests Demountable joints Steel connections Tubular profiles

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Published Date

2022-7

Language

English

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Abstract

Steel tubular members are efficient and aesthetic structural solution, yet the bolted connections between then are challenging due to the restricted access to the inside of the tube. There are several solutions, which try to overcome this difficulty, by adoption of special fasteners and/or additional connecting elements. This paper presents the experimental and numerical characterization of a novel plug-and-play joint that was developed as a demountable solution to connect tubular steel columns to cold-formed steel trusses. The research program comprised a large number of experimental tests on components and the full-scale joints, complemented by numerical models calibrated with the experimental tests. These calibrated numerical models were subsequently used to perform a large parametric study on the components and joint that allowed to propose guidelines on the geometries that maximise the performance of these joints.