Failure design of high-rise concrete panels under fire loadingReportar como inadecuado




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1 NAVIER UMR 8205 - Laboratoire Navier 2 Multi-échelle - Modélisation et expérimentation multi-échelle pour les solides hétérogènes NAVIER UMR 8205 - Laboratoire Navier 3 CSTB - Centre Scientifique et Technique du Bâtiment

Abstract : The present contribution addresses the crucial issue of predicting the failure of high rise reinforced concrete walls subjected to fire loading conditions. A three step procedure is proposed, in which the yield design limit analysis method is applied on two separate levels. First, as a way for assessing the local strength properties of the wall, modeled as a plate, as a function of temperature gradient across the wall thickness. Secondly for analyzing the overall stability of the wall in its fire-induced deformed configuration on account of the previously determined strength properties. A comprehensive numerical approach is set up, based on fem-based plate yield design computations associated with non-linear optimization schemes, and a first illustrative application is performed leading to first conclusive results regarding structural fire safety.

Keywords : non-linear optimization. high rise walls structural fire safety yield design periodic plates and shells finite elements





Autor: Jeremy Bleyer - Duc Toan Pham - Patrick De Buhan -

Fuente: https://hal.archives-ouvertes.fr/



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