Abstract
A new evaluation method for the probability of failure of a structural system based on reliability theory is proposed. From the numerical examples, it is demonstrated that this method possesses high accuracy and simplicity. And the safety of RC bridge pier against earthquake is evaluated on the basis of the proposed method. In this analysis, three limit states-flexural capacity, shear capacity and ductility-are taken into consideration. It is shown that shear/flexural capacity ratio and ground condition are very important factors in order to evaluate the seismic performance of RC bridge pier. Finally, new concept of seismic design for RC bridge pier based on reliability theory is proposed.
