Experimental Investigation of Novel Corrugated Steel Deck under Construction Load for Composite Slim-Flooring

Abstract

Trapezoidal-shaped thin-walled metallic profiled sheets are used in composite floor construction to enable rapid construction and reduce reinforcement and formwork requirements in concrete casting. However, relevant literature reported the early failure of steel sections due to the buckling and shear of existing trapezoidal and re-entrant decking profiles. There are also limitations regarding design rules for composite flooring systems. Current work aims to develop a new type of composite top-hat section for possible use in composite slim-floor construction. Sinusoidal metallic corrugated sheets that are widely used in building construction were utilized and a new bending technique was used to produce deck components, in which transverse corrugations were introduced along the main direction of the corrugated profile. This paper investigates the structural response of these new sections for several loading and support conditions using a pilot experimental scheme. The developed top-hat sections demonstrated considerable resistance to bending as well as buckling through effective stress re-distributions under considered construction stage loading for single span and continuous span conditions. Currently available design equations recommended by Australian Standards for a similar type of corrugated decks were used to predict the design strength and to compare it with those obtained experimentally. It was concluded that the expressions proposed by the code were inadequate for single span loading cases and would require modifications before being applied to the new profile.

Performance of Composite Slabs Using Profiled Steel Decking Reinforced with Cold-Formed C-Channel Steel

“…The latter is the focus and present in this publication. This is related with [13] which investigated the structural response of their novel corrugated steel deck for composite slimflooring under several loading and support conditions. The study concludes the design equations from the Australian Standards are inadequate for their slim-flooring system with single span loading as such modifications are required for the new profile.…”

Structural Performance Assessment of Innovative Hollow Cellular Panels for Modular Flooring System

“…Some studies indicate that the use of profiled steel sheets is increasing to provide quality and affordable housing in the form of self-supporting roofs and other applications owing to their structural capabilities without any support [11,18]. Experimental investigation of profiled steel sheets for their constructability in various applications such as composite flooring systems have shown encouraging results [19,20].…”

Structural Performance of Modular Sandwich Composite Floor Slabs Containing Basalt FRP-Reinforced Self-Compacting Geopolymer Concrete

“…Even with these limitations, a higher volume of studies focusses on the development of steel-concrete infill systems [14], owing to the increase in compressive strength and increased panel stiffness delaying the buckling offered by these composite slabs [15]. Moreover, the profile sheeting provides support by acting as a formwork taking the selfweight of concrete under large spans, avoiding the need for temporary props [16,17]. However, some studies identify that using conventional concrete as an infill material would negatively affect the sustainability aspect of the modular construction concept due to the high amount of carbon emissions associated with the production of Ordinary Portland Cement [18].…”