Abstract
Although the safety of a structure can be quantitatively evaluated based on reliability design, it depends on the evaluation method oneself. So we proposed the evaluation method for a safety of the structural system considering correlation between structural variables and evaluated a safety of RC bridge pier under big earthquakes considering the correlation to clarify its influence. The results showed that when the limit state affected by the correlation is controlling a safety of the structural system, a safety of RC bridge pier is raised by considering correlation in case of low safety. Furthermore, significant considerations about seismic design of RC structures were pointed out on the basis of the proposed new method.
