Community Research and Development Information Service - CORDIS

Abstract

Due to the large increase in the use of composite beams in buildings, it was felt necessary to have a better understanding of their behaviour in case of fire. Composite beams, as far as this research is concerned, are made with a bare or insulated steel section connected to a concrete or composite slab. This slab is attached to the upper flange of the beam by shears connectors. The research was divided into four main parts:

Experimental investigation of the fire behaviour of two types of shears connectors (studs and angles) in order to derive force-slipping relationships versus temperature;
Experimental investigation of the fire behaviour of composite beams, either simply supported or cantilever or continuous on three supports;
Validation of the capability of a numerical model to estimate the possible slipping between the steel section and the slab at an elevated temperature;
Development of simple calculation methods for assessing the fire resistance of composite beams, taking into account the risk of failure of shear connectors and local buckling of steel sections on intermediary supports.
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Additional information

Authors: ZHAO B, Centre technique industriel de la construction métallique, Saint-Rémy-lès-Chevreuse (FR);KRUPPA J, Centre technique industriel de la construction métallique, Saint-Rémy-lès-Chevreuse (FR)
Bibliographic Reference: EUR 16822 EN (1997) 77pp., FS, ECU 13.50
Availability: Available from the (2)
ISBN: ISBN 92-828-1487-4
Record Number: 199711697 / Last updated on: 1998-01-06
Category: PUBLICATION
Original language: en
Available languages: en