PROBLEMS OF COMPUTER STRUCTURAL ANALYSIS AND REINFORCEMENT CALCULATION TECHNIQUES OF REINFORCED CONCRETE RIBBED SLABS

This paper proposes an overview of computer structural analysis and reinforcement calculation techniques reinforced concrete ribbed slabs that are used in Ukraine. It considers the fundamental hypotheses assumptions these analyzes possibility implementation building codes’ requirements into automated calculations. Numerical experiments confirm existence a relationship between normal stress distribution pattern rib’s cross section width slab zone, which participates bending. We conclude need to develop generalizing methodology FEM for such structures, could be implemented modern FEM-analysis packages implementing information modelling technology (BIM).Design forces elements monolithic floors determined taking account plastic deformations. approach is based on assumption formation with increasing load statically indeterminate systems hinges, each leads decrease static indeterminacy system by one degree. The appearance hinges redistribution bending moments, calculated using or kinematic method. In general case, sum span moment half support moments single-span beam always equal similar beam. That is, ratio does not affect bearing capacity as whole, but only determines order hinges.