A Comparative Study on the Efficiency of Reliability Methods for the Probabilistic Analysis of Local Scour at a Bridge Pier in Clay-Sand-Mixed Sediments

In this work, the performance of reliability methods for probabilistic analysis local scour at a bridge pier is investigated. The one important issues risk assessment and safety evaluation bridges. Typically, depth prediction estimated using deterministic equations, which do not consider uncertainties related to parameters. To these uncertainties, required. recent years, number efficient have been proposed reliability-based engineering problems based on simulation, such as Monte Carlo simulation (MCS), subset (SS), importance sampling (IS), directional (DS), line (LS). However, no general guideline recommending most appropriate method has yet proposed. For purpose, we carried out comparative study five so originate guidelines scour. addition, sensitivity was also find effect individual random variables