Abstract
This paper discusses life cycle scenarios of an open-type wharf. A substructure consisting of steel pipe piles of an open-type wharf is dealt with in this paper. Performance degradation of the wharf would be caused by corrosion of steel piles. The load-carrying capacity is calculated by the pushover analysis taking into account corrosion of steel pipe piles. The performance requirements of the wharf subjected to level 1 and level 2 seismic ground motions are the elastic limit in the load-displacement relationship and the maximum horizontal displacement, respectively. Seismic response of the wharf is calculated by using a one mass-spring model where the skeleton curve is modeled by a bilinear load-displacement curve obtained by the pushover analysis. The Monte Carlo simulation is applied for the calculation of the failure probability of the wharf after corrosion occurs in the steel piles where remaining thickness of the piles are varied following the normal distribution. The life cycle costs of four repair scenarios are evaluated in consideration of the failure probability, which concludes the optimal life cycle scenario.
