Study of the Dynamical Properties of Simply Supported Reinforced Concrete Beams subjected to Multiple Loading : Case of Three Concentrated Loads

This investigation, involving the testing 12 specimens-each 3 specimens for the steel, deformed steel bar under and over reinforced concrete beams-subjected to 3 concentrateld varying loads are the minimum case on multiple loading, contributes useful data on dynamical property. The authors experimented with the loading method by oil pressure multipliable apparatus. Then, they described that loading observations and conclusions are based on the failured states of reinforced concrete beams may be represented with bending on under reinforced concrete beams, many effects of shear on over them, the capabilities of judicatory standards by a/d of the failured boundary may be applied approximately, concerning with steel bar and deformed steel bar reirforced concrete beams, the latters may be small deflections, crack states small and uniformity, and safety on dynamic within also the limits of these researches.