کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
270510 504763 2008 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Charring model for timber frame floor assemblies with void cavities
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Charring model for timber frame floor assemblies with void cavities
چکیده انگلیسی

Design models of timber structures in fire usually take into account the loss in cross section due to charring of wood and the temperature-dependent reduction of strength and stiffness of the uncharred residual cross section. For timber frame wall and floor assemblies with void cavities, only a little information is available. In the first part of the paper, the results of an extensive FE-thermal analysis on initially protected timber beams exposed to fire on three sides, after the fire protection has fallen off (post-protection phase), are presented. The FE-thermal analysis verified by fire tests on protected timber specimens exposed to one-dimensional charring permitted the analysis of the main parameters, which influence charring during the post-protection phase. Based on the FE-results, a charring model for timber frame floor assemblies with void cavities has been developed and is presented in the second part of the paper. The charring model takes into account the influence of high temperature during the post-protection phase as well as the heat flux superposition on the charring rate of the timber beams exposed to fire on three sides.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fire Safety Journal - Volume 43, Issue 8, November 2008, Pages 551–564
نویسندگان
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