In recent years, Performance Based Seismic Design (PBSD) has played a central role for research works in the field of seismic engineering. The core idea of the PBSD is the probabilistic assessment of the structural performances due to seismic action [Bertero and Bertero, 2002, Moehle and Deierlein, 2004, Zhang et al., 2004]. From a practical point of view, following the PEER framework [Cornell and Krawinkler, 2000], this assessment can be achieved through an articulated procedure which can be summarized in the following subtasks [Zhang et al., 2004]: · Probabilistic Seismic Hazard Analysis (PSHA) or simply Hazard Analysis (HA); · Probabilistic Seismic Demand Hazard Analysis (PSDHA); · Probabilistic Seismic Capacity Analysis (PSCA) also called Fragility Analysis; · Seismic Reliability Analysis (SRA). This paper focuses mainly on the correct identification of the dynamic inputs (“bins” as defined by [Giovenale et al., 2004] or “EPI groups” as defined hereafter by the authors) to be used in the PSDHA subtask. In detail, the paper introduces a general framework (“methodology for EPI group creation”) for the rationally-organised treatment of the latest contributions in terms of ground motion parameters which have a substantial effect upon the structural response. Among the factors taken into account in the proposed methodology for the correct identification of the EPI group, we mention the use of vector-valued IMs [Baker and Cornell, 2005, Trombetti et al, 2003], the recently proposed parameter “epsilon” (as obtained by disaggregation analysis [Baker and Cornell, 2005]), magnitude “MS”, site to epicentre distance “R” and relative number of near field records.
A methodology for the identification of design earthquake inputs / Trombetti T.; Silvestri S.; Gasparini G.; Malavolta D.. - ELETTRONICO. - CD-ROM:(2006), p. Paper n. 963. (Intervento presentato al convegno “First European Conference on Earthquake Engineering and Seismology” (a joint event of the 13th European Conference on Earthquake Engineering & 30th General Assembly of the ESC) tenutosi a Ginevra (Svizzera) nel 3-8 September 2006).
A methodology for the identification of design earthquake inputs
TROMBETTI, TOMASO;SILVESTRI, STEFANO;GASPARINI, GIADA;MALAVOLTA, DANIELE
2006
Abstract
In recent years, Performance Based Seismic Design (PBSD) has played a central role for research works in the field of seismic engineering. The core idea of the PBSD is the probabilistic assessment of the structural performances due to seismic action [Bertero and Bertero, 2002, Moehle and Deierlein, 2004, Zhang et al., 2004]. From a practical point of view, following the PEER framework [Cornell and Krawinkler, 2000], this assessment can be achieved through an articulated procedure which can be summarized in the following subtasks [Zhang et al., 2004]: · Probabilistic Seismic Hazard Analysis (PSHA) or simply Hazard Analysis (HA); · Probabilistic Seismic Demand Hazard Analysis (PSDHA); · Probabilistic Seismic Capacity Analysis (PSCA) also called Fragility Analysis; · Seismic Reliability Analysis (SRA). This paper focuses mainly on the correct identification of the dynamic inputs (“bins” as defined by [Giovenale et al., 2004] or “EPI groups” as defined hereafter by the authors) to be used in the PSDHA subtask. In detail, the paper introduces a general framework (“methodology for EPI group creation”) for the rationally-organised treatment of the latest contributions in terms of ground motion parameters which have a substantial effect upon the structural response. Among the factors taken into account in the proposed methodology for the correct identification of the EPI group, we mention the use of vector-valued IMs [Baker and Cornell, 2005, Trombetti et al, 2003], the recently proposed parameter “epsilon” (as obtained by disaggregation analysis [Baker and Cornell, 2005]), magnitude “MS”, site to epicentre distance “R” and relative number of near field records.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.