Print Email Facebook Twitter A simplified approach for predicting temperature profile in steel members with locally damaged fire protection Title A simplified approach for predicting temperature profile in steel members with locally damaged fire protection Author Dwaikat, M.M.S. Kodur, V.K.R. Faculty Industrial Design Engineering Department Design Engineering Date 2012-04-01 Abstract Steel structures in building are to be provided with external insulation to delay temperature rise and associated strength degradation when exposed to fire. However, due to delicateness and fragility of some insulation systems, damage might occur in these insulation systems during their service life, and such damage can lead to rapid rise in steel temperature and result in lower fire resistance of structural members. Currently, there are no simple calculation methods for quantifying the effect of insulation loss on steel temperature. In this paper, a simple approach is proposed for tracing the temperature profile in steel members with partial loss of fire protection. The method is developed based on modifying the existing one-dimensional finite difference solutions of the heat transfer equation. The validity of the proposed method is established by comparing the predictions from the proposed method against temperatures obtained from finite element heat transfer model that is created using ANSYS. The comparisons indicate that the proposed method is capable of predicting temperature in steel members with partially damaged insulation to a good degree of accuracy over a wide range of situations. Further, the simplicity of the proposed method makes it attractive for use in fire resistance assessment in steel structures Subject heat transferfire protectioninsulation lossradiationconvectionfire resistance To reference this document use: http://resolver.tudelft.nl/uuid:3dbe8a6e-8a70-4fbb-b9f2-a9c30ebbdb12 DOI https://doi.org/10.1007/s10694-011-0241-x Publisher Springer-Verlag ISSN 1572-8099 Source http://link.springer.com/article/10.1007/s10694-011-0241-x Source Fire Technology, 48(2)2012 Part of collection Institutional Repository Document type journal article Rights (c)2012 Dwaikat, M.M.S., Kodur, V.K.R. and Springer Files PDF Dwaikat.pdf 688.21 KB Close viewer /islandora/object/uuid:3dbe8a6e-8a70-4fbb-b9f2-a9c30ebbdb12/datastream/OBJ/view