ABSTRACT
For example, considering a structure of reliability class 2 having a design working life of 50 years, the reliability index β = 3.8 should be used, provided that probabilistic models of basic variables are available for this period. The same reliability level
1 INTRODUCTION
The target reliability levels recommended in various national and international documents for new structures are inconsistent in terms of the values and the criteria according to which the appropriate values are to be selected. Almost no recommendations are available for temporary structures. In general, optimum reliability levels can be obtained by considering both the cost of the structure and the expected cost of failure over the design working life.
