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This paper presents reliability analysis of a glulam load-bearing beam in a fire. Global fire safety concept of timber structure analysis is presented according to the recommendations from Eurocodes. Special attention was given to natural fire design with two different methods of parametric exposure which are given in Eurocode 1995-1-2. Differences in load-bearing capacity from Eurocode 1995-1-1 and 1995-1-2 are. The limit-state functions for maximum bending stress of glulam beam in fire conditions are formed. The charring rate of wooden beam is calculated by a model that includes explicitly the principal sources of uncertainties and variability. Reliability indexes are obtained from the limit state of the beam exposed to 30 min fire for the beams which spans were varied from 4 to 12 meters. Conclusions are given about structures with reliability class RC3 for which design according only to Eurocode 1995-1-2 is not sufficient.
glulam beam; reliability; fire; Eurocode; bending; the limit state function
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