02004nab a2200229 4500 20260520001112.0 260224s2015 xxu ing Inglés The Reduced Cross-Section Method for Evaluation of the Fire Resistance of Timber Members Discussion and Determination of the Zero-Strength Layer nov. 2015 03/03/2016 ; 03/03/2016 24 p. ; 1285-1309 Transcripción del resumen del autor: The reduced cross-section method (RCSM) is included in Eurocode 5 (EN-1995-1-2) for the design of timber members in fire conditions. The method considers the strength and stiffness reduction beneath the charred layer by adding an additional depth (known as the ‘zero-strength’ layer) to the charring depth. The zero-strength layer is one of the key parameters for the fire design of timber members. Recently, some concerns have been raised that the zero-strength layer might be non-conservative in some applications. This paper presents the background to the RCSM, followed by a short discussion on the mechanical assumptions, simplifications and possible limitations of the method itself. Further, it discusses determination of the zero-strength layer thickness for members in bending, tension and compression, and provides guidelines on the use of standard experimental tests to determine this quantity. For demonstration of the determination procedure, the results of fire tests in bending, tension and compression were analysed following the described procedure. Results show that the zero-strength layer exceeds the value used in practice, indicate that the method of Eurocode 5 may be non-conservative and should be revised. 6 Fire Technology 51 ARTICULO Schmid, Joachim 55219 Just, Alan 55220 Klippel, Michael 55221 Fragiacomo, Massimo 55222 189472 189472 0 0 0 0 257291 BAAB BAAB 2026-03-06 200061708 0 200061708 2026-03-06 00:19:39 2026-03-06 ARTICULO