| Abstract | The efficiency of applying of the calculation finite element method of fire resistance limit of prestressed ribbed reinforced concrete slab has been analyzed. The sequences of procedures for realization of the calculation and techniques of the determination of fire resistance limit have been formulated. Basing on the elaborated method, it has been determined fire resistance limit of prestressed ribbed reinforced concrete slab. It has been shown that the finite element method is an efficient base for elaborated techniques of the calculation of fire resistance limit of bearing reinforced concrete building structures, particularly in combination with experimental and calculation methods for determination of complex characteristics of concrete and steel.
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