Probabilistic seismic safety analysis of multi-component systems

Abstract

Fakultät für Bauingenieurwesen Lehrstuhl für Baustatik und Baudynamik Univ.-Prof. Dr.-Ing. habil. Sven Klinkel ISBN 978-3-946090-07-6 ISSN 1437-0840 The present thesis aims at proposing an alternative methodology for the m ulticomponent system analysis capable of representing the interaction among the components. The method is based on the multidimensional fragility formulations, where the component responses are combined using multivariate distributions and the limit states are defined using performance limit state function. The definition of the performance limit state also takes into consideration the interaction among the components, which are not represented using traditional meth ods such as fault tree analysis. A comparison with the fault tree analysis method shows that the interaction among components a re well represented using the multidimensional fragility method. The proposed method uses Response Surface method based meta models for the analysis allowing high computational efficiency compared to that of the Monte Carlo methods. The aging and degradation behavior of the structure and the components can be incorporated in the multidimensional system fragility formulation . Probabilistic Seismic Safety Analysis of Multi-component Systems Von der Fakultät für Bauingenieurwesen der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades einer Doktorin der Ingenieurwissenschaften genehmigte Dissertation