Timber elements, which are different from other structural elements, have a characteristic problem in that the load bearing capacity decreases due to self-burning in the case of a fire, and this self-burning may continue after other fuel in the room has been exhausted. The purpose of this study was to investigate the charring behaviour and the temperature in the cross section of the beams during not only the heating phase and but also the cooling phase. In the present paper, charring behaviour and the temperature and glued, laminated timber beams is discussed based on the results of heating tests and load-bearing fire tests that take the cooling phase into consideration.
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