ABSTRACT
The values and distributions of the basic input variables are summarized in Table 1.
1.3 Solution methods
The reliability methods employed in this study include the First-Order Second Moment (FOSM), FirstOrder Reliability Method (FORM) (Ang and Tang 1984), Second-Order Reliability Method (SORM) (Der Kiureghian and Stefano 1991), direct Monte Carlo simulation (MCS) and Subset simulation (Subsim) (Au and Beck 2001).The FOSM method is implemented with the assumption that the performance function g is Gaussian. The FORM is implemented with the gradient projection algorithm (Liu and Der Kiureghian 1991) for the search of the design point; the SORM is implemented with the algorithm developed by Der Kiureghian and Stefano (1991).
