Development of a Software Tool for Seismic Probabilistic Safety Assessment Quantification with a Sufficiently Large Number of Bins for Enhanced Accuracy

Quantification in seismic probabilistic safety assessment (PSA) includes the convolution of hazard and fragility curves. Because it is difficult to find closed-form integration for two curves, numerical methods are widely used practice. In practical applications, number ground motion level bins limited, not clear whether limited leads conservative or optimistic results. this study, effect on quantification results with simplified assumptions investigated. It found that mostly decrease as increases. To enhance accuracy PSA, a method software tool enable sufficiently large be PSA models developed. The application developed an example model demonstrates how approach accurate study expected