Conference Paper

Composite behaviour of cold-formed steel-timber floors

Abstract

This article investigates, experimentally, the structural performance of lightweight cold-formed steel (CFS) - timber board composite flooring systems. Fifteen full-scale bending tests and twelve companion pushout connection tests were performed. The effect of connection detail (comprising self-drilling screws with or without a structural adhesive) on structural per-formance is examined. The results of this research demonstrate that the use of a polyurethane adhesive, in conjunction with screws, leads to a significant increase in connection slip modulus and a higher degree of composite action in the floors, resulting in up to 40% increase in flex-ural stiffness, when compared to joists designed individually. The experimental results are then compared to predictions from relevant existing analytical models.

Attached files

Authors

Raffoul, Samar
Moutaftsis, Dimitrios
Heywood, Martin
Rowell, Michael

Oxford Brookes departments

School of Architecture

Dates

Year of publication: 2020
Date of RADAR deposit: 2019-12-02

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License