Seismic Response Analysis of RC Structures Considering Strength Degradation Caused by Cyclic Loading

Abstract eng:
It is well known that the strength of reinforced concrete columns is degraded by cyclic loading, particularly in the post-peak region. When we examine the seismic safety of RC structures, it is important to conduct the dynamic response analysis considering the strength degradation by cyclic loading. In this study, we first develop a nonlinear dynamic hysteresis model, which can take into account the strength degradation. Secondary, we attempt to evaluate the effects of duration time of earthquake in the post-peak region through seismic response analysis by using the proposed model. As a result, we clarified that the post-peak behavior of reinforced concrete structures varies depending on the duration time of ground motion.

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