Experimental Studies of Loading Rate Effects on Reinforced Concrete Columns

摘要: This paper presents a testing technique to evaluate the effect of loading frequency on behavior structural elements. single-specimen consists in subjecting specimen two rates, but shifting, at end each cycle, from one other. The writers found that by single specimens alternate cycles, rate may be observed more clearly than comparing different specimens, loaded prescribed frequencies. is because when using multi-specimen technique, results are prone scatter inherent material properties; particular, it would seem reinforced concrete (RC) rate-of-loading same order magnitude as scatter, which not case used. was applied 250×250 mm section RC columns subjected uniaxial bending cycles range 0.002–1Hz. It effect, manifested measured load and energy absorption, about 5% higher tested 1 Hz 0.002 Hz.