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.

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].…”