Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analytical evaluation of essential facilities fragility curves by using a stochastic approach
Abstract The study presented in this paper is focused on an analytical method for constructing fragility curves of a given class of existing structures, based on a stochastic approach and which makes use of the Hazus database. The analysed structure is a non-linear one degree of freedom (SDoF) system: its constitutive law is described by means of a hysteretic model, whose parameters are obtained by an identification procedure starting from the Hazus data. A particular class of structures, the essential facilities, are analyzed. The system’s response to seismic action, here modelled by means of the modulated Clough and Penzien filtered stochastic process, is obtained by using the stochastic linearization technique and the covariance analysis. In order to develop the fragility curves, a displacement based damage index is adopted and, finally, fragility curves are obtained in terms of the probability of exceeding a given damage level, by using an approximate theory of stochastic processes. The main innovation of the proposed approach is that it can be directly extended to other kinds of structures which are not included in the Hazus database, since the procedure requires only the knowledge of the capacity curve, which can be obtained by standard procedures.
Analytical evaluation of essential facilities fragility curves by using a stochastic approach
Abstract The study presented in this paper is focused on an analytical method for constructing fragility curves of a given class of existing structures, based on a stochastic approach and which makes use of the Hazus database. The analysed structure is a non-linear one degree of freedom (SDoF) system: its constitutive law is described by means of a hysteretic model, whose parameters are obtained by an identification procedure starting from the Hazus data. A particular class of structures, the essential facilities, are analyzed. The system’s response to seismic action, here modelled by means of the modulated Clough and Penzien filtered stochastic process, is obtained by using the stochastic linearization technique and the covariance analysis. In order to develop the fragility curves, a displacement based damage index is adopted and, finally, fragility curves are obtained in terms of the probability of exceeding a given damage level, by using an approximate theory of stochastic processes. The main innovation of the proposed approach is that it can be directly extended to other kinds of structures which are not included in the Hazus database, since the procedure requires only the knowledge of the capacity curve, which can be obtained by standard procedures.
Analytical evaluation of essential facilities fragility curves by using a stochastic approach
Marano, Giuseppe Carlo (Autor:in) / Greco, Rita (Autor:in) / Morrone, Emiliano (Autor:in)
Engineering Structures ; 33 ; 191-201
04.10.2010
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Analytical evaluation of essential facilities fragility curves by using a stochastic approach
| Online Contents | 2011
Stochastic approach for analytical fragility curves
| Springer Verlag | 2008
Deriving Analytical Fragility Curves for Masonry Churches Based on Stochastic Nonlinear Analyses
| Springer Verlag | 2024
Uncertainty Quantification in Analytical Bridge Fragility Curves
| British Library Conference Proceedings | 2009