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Parametric analysis of constant-moment zone length in four point bending of reinforced concrete beams

This poster describes performed numerical parametric analyses of constant-moment zone length in four point bending of reinforced concrete structures by developed three-dimensional numerical material model for analyzing reinforced concrete structures. The aim is to reproduce and to compare obtained results with the one obtained on mechanical two-dimensional model, by Fantilli et al. and experimentally by Weiss et al. where a constant-moment zone length is investigated to determine whether the flexural response of reinforced concrete beams is size (length) dependent. As developed model enables a very detailed and precise analysis of reinforced concrete structures until crushing with a high accuracy we hope to confirm Fantilli et al. results what could lead to the improvement of Eurocode 2.

compressed concrete; ductility; finite element; four point bending; size effect

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