Screwed connections are commonly used in fabricating built-up cold-formed steel (CFS) members. However, the knowledge and understanding of their behaviour design limited. This research study investigated shear capacity screwed CFS It included a series tests between two single channel members as back-to-back members, failing by tilting bearing. Tests were conducted at both ambient elevated tempe...

The objective of this investigation is to develop an economical and efficient reinforcement scheme for large web openings in cold-formed steel (CFS) joists flexural zones that would restore the original moment resistance section. This considered commonly used floor North American CFS construction. Tests on webs with no circular square located at mid-depth revealed may reduce strength by 23%. A ...

A common lateral force resisting system for cold-formed steel (CFS) buildings consists of shear walls sheathed with oriented strand board (OSB). Previous experimental and computational research on CFS shear walls, as well as those with other framing materials, has demonstrated that the complex interaction of the fasteners with the sheathing is an important factor in the nonlinear behavior of th...

• Bare steel and composite semi-rigid moment-resisting connections were tested. The comprised CFS tubular sections connected using side plates. Various failure limit states captured through the tested connections. infill concrete effectively prevented beam local buckling. Side plate plasticity considered as a desirable energy dissipation mechanism. This paper presents results of full-scale phys...

The objective of this paper is to explore the potential impact of the use of advanced high strength steel (AHSS) to form traditional cold-formed steel structural members. In this study, shell finite element models are constructed, and geometric and material nonlinear collapse analysis performed, on simulated lipped channel cross-section cold-formed steel members roll-formed from AHSS. AHSS shee...

Recently, there has been an increasing number of studies on the distortional buckling analyses cold-formed steel (CFS) channels with web edge-stiffened holes. However, literature about analytical solutions is scarce, and current design rules, e.g., American Iron Steel Institute (AISI 2016) Australian/New Zealand standards (AS/NZ 4600: 2018), provide little advice for CFS This paper presents met...

Tyre components are high-quality materials, which can be utilised and disposed into construction projects. Despite its high ductility impact resistance, rubberised concrete (RuC) with rubber content has a strength much lower than that of conventional concrete. Previous research shows confinement by jacket material significantly improve the RuC. This paper presents how infilling RuC to cold-form...

Abstract: Load-bearing cold-formed steel (CFS) walls sheathed with double layers of gypsum plasterboard on both sides have demonstrated good fire resistance and attracted increasing interest for use in mid-rise CFS structures. As the main connection method, screw connections between CFS and gypsum sheathing play an important role in both the structural design and fire resistance of this wall sy...

This paper presents an experimental and numerical investigation of the tensile compressive behaviour a novel U-connector in cold-formed steel (CFS) truss-to-column connection. Tensile tests were performed on 12 specimens representing tension chords trusses The results used to validate finite element model. validated model was then subjected both loads, which revealed low stiffness components pr...