Elaboration of the system based code concept; Activities in JSME and ASME, 2; Development of evaluation tools based on LRFD

Machida, Hideo*; Asayama, Tai ; Watanabe, Taigo*; Hojo, Kiminobu*; Hayashi, Masaaki*

In the System Based Code (SBC), a reliability target is defined according to the importance of components (risk and/or failure probability), and grade of material, design, manufacture and maintenance are chosen to satisfy the reliability target. Therefore, reliability evaluation of components plays the important role of the concept of SBC. Until now, the LRFD methods were developed for burst due to internal pressure, plastic collapse due to membrane and bending stress, fatigue, limit load assessment of flawed pipe, and buckling of thin wall cylinder. This paper describes the action plans of development of the reliability assessment methods and an examination results up to date.