Structural reliability analysis and seismic risk assessment
This paper presents a reliability analysis method for safety evaluation of nuclear structures. By utilizing this method, it is possible to estimate the limit state probability in the lifetime of structures and to generate analytically the fragility curves for PRA studies. The earthquake ground acceleration, in this approach, is represented by a segment of stationary Gaussian process with a zero mean and a Kanai-Tajimi Spectrum. All possible seismic hazard at a site represented by a hazard curve is also taken into consideration. Furthermore, the limit state of a structure is analytically defined and the corresponding limit state surface is then established. Finally, the fragility curve is generated and the limit state probability is evaluated. In this paper, using a realistic reinforced concrete containment as an example, results of the reliability analysis of the containment subjected to dead load, live load and ground earthquake acceleration are presented and a fragility curve for PRA studies is also constructed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA); Columbia Univ., New York (USA). Dept. of Civil Engineering and Engineering Mechanics
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6977211
- Report Number(s):
- BNL-NUREG-34502; CONF-840647-15; ON: DE84010891
- Country of Publication:
- United States
- Language:
- English
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