A method for evaluation reliability of system

Abstract

In this paper, the authors have presented a method for evaluation reliability of system.

The method includes three steps:

- Deterministic calculation by finite element method to find inner forces of structure. In which aloes of design parameters and loads are chosen as their expectations.

- To find reliability of every element according to statistic data's of design parameters and sternal loads. In which inner forces of structure are external force of element.

- To evaluate reliability of system by to determine lower and upper bounds.

For illustration, evaluation of reliability of multi-story frame of reinforce concrete is considered.