Life-Cycle Cost Analysis of Reinforced Concrete Pier Paying Attention to Difference of Seismic Performance

Abstract

In this study, an attempt is made to develop an analysis method for calculating Life-Cycle Cost (LCC) of Reinforced Concrete (RC) piers, paying attention to the difference of initial seismic performance. In order to evaluate the seismic performance, reliability index in service life is used by considering the deterioration of RC piers due to the corrosion. Through several numerical examples, the following conclusions were derived : 1) It is difficult to calculate LCC by considering only the initial seismic performance. 2) Paying attention to the corrosion of reinforcement, the service life of RC piers becomes longer as the longitudinal reinforcement ratio becomes larger. 3) It is obtained that the maintenance actions during service life greatly affect LCC minimization.