ABSTRACT
Owing the statistical nature of the data concerning the strength of a material or the loads to be designed for, the probabilistic approaches for structural verification is proved to be notable tool. Application of recommended values for partial safety factors in codes will lead to reliability level equal to the suggested target reliability in the code. The version of Monte Carlo method was established in 40's, however there are some restricted activities which are similar to Monte Carlo simulation in earlier studies. It is also mentioned by I. M. Sobol that the accepted birth date of the Monte Carlo method is 1949. The probabilistic modeling of the basic variables is done based on economic design assumption which defines the design value of load identified to the design value of resistance. Reliability analysis and evaluation of the safety index could be the most effective criteria for evaluation of structural safety.
