Probabilistic Seismic Analysis of Existing Industrial Facilities

Abstract

This paper presents the application of probabilistic methods for the seismic analysis of existing industrial facilities. First, the main advantages and the rationale for probabilistic (versus deterministic) approaches are discussed for existing structures/facilities. A short overview of existing probabilistic and deterministic seismic analysis approaches follows. Afterwards a simple and efficient probabilistic approach is presented with an example as application on existing industrial facilities. The method involves state-of-the-art probabilistic seismic hazard analysis (PSHA). It covers the whole industrial facility including structures, components, mechanical installations, piping, tanks, etc. In comparison to Monte Carlo Simulation, this method is cost-effective and practical and can be used for risk-informed/performance-based rehabilitation or strengthening.