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EnglishIn 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.
| Titolo: | A methodology for the identification of design earthquake inputs |
| Autore/i: | TROMBETTI, TOMASO; SILVESTRI, STEFANO; GASPARINI, GIADA; MALAVOLTA, DANIELE |
| Autore/i Unibo: | |
| Anno: | 2006 |
| Titolo del libro: | Proceedings of the “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) |
| Pagina iniziale: | Paper n. 963 |
| 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. |
| Data prodotto definitivo in UGOV: | 2-ott-2006 |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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