Abstract
Occurrence of fire accidents has become a frequent event in recent days, and the major problem with fire is it provides very less time to handle the situation. Most of the fire affected buildings are put in re-use by only providing cosmetic repairs without actually evaluating actual strength loss to the building. In this paper, reduction of strength of beams and slabs has been evaluated by FEM software (ANSYS) and compare the results with an empirical method (500 °C isotherm method) as per Eurocode guideline. For this, a realistic building has been taken for analysis and its fire load density and fire exposure time has been evaluated. Thermo-structural analysis has been done in ANSYS to evaluate flexural capacity of structural elements. To calculate flexural capacity by empirical method, strength reduction factors given in Eurocode have been used.
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