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Santucci de Magistris, F.
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- PublicationOpen AccessEvaluating the structural priorities for the seismic vulnerability of civilian and industrial wastewater treatment plantsWastewater disposal systems are complex systems composed by several interconnected elements. In the aftermath of dramatic natural events, such as the earthquake, the failure of any of these elements can result in the deterioration of the environment as well as in the risk for the exposed population, due to leakage of untreated or un-properly treated wastewater on soil and/or its discharge into superficial waters. This paper presents a multi-disciplinary methodology for the evaluation of the seismic vulnerability of municipal or industrial wastewater treatment plants, based on damage observation of available earth- quake reports. Specific fragility curves and threshold values expressed in terms of Peak Ground Acceleration (PGA) are presented and compared with existing functions. The methodology fully comply requirements of most relevant and effective risk analysis tools or for land-use planning and can be adopted for the definition of structural priorities of plants.
125 41 - PublicationOpen AccessCaratterizzazione geotecnica del sottosuolo di San Giuliano di Puglia(2009)
; ; ; ; ; ; ;d’Onofrio, A.; Dipartimento di Ingegneria Idraulica, Geotecnica ed Ambientale, Università degli Studi di Napoli “Federico II”, Napoli, Italia ;Vitone, C.; Dipartimento di Ingegneria Civile e Ambientale, Politecnico di Bari,Italia ;Cotecchia, F.; Dipartimento di Ingegneria Civile e Ambientale, Politecnico di Bari,Italia ;Puglia, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Santucci de Magistris, F.; Laboratorio di Dinamica Strutturale e Geotecnica, StreGa, Università degli Studi del Molise, Temoli (CB), Italia ;Silvestri, F.; Dipartimento di Ingegneria Idraulica, Geotecnica ed Ambientale, Università degli Studi di Napoli “Federico II”, Napoli, Italia; ; ; ; ; In order to correlate the damages produced by 2002 Molise earthquake to the litostratigraphic and mechanical characteristics of the subsoil, a detailed investigation by in situ and laboratory tests was performed in San Giuliano di Puglia (CB). The investigations were directed both to study the Toppo Capuana marly clays, above which most of the damages of buildings were founds, and, to a lesser extent, the Faeto flysch formation, that is its rigid bedrock. The marly clay deposit is distinguishable in several strata, which varied in relation to the intensity of cracking, that is classified in a rational way. The in situ investigations allowed to recognize the litostratigraphic characters of the area and to reconstruct, with different methods, the main stratigraphic section account for variability of alteration and cracking. The latter factor, although not evident through the physical properties of soils, was of paramount importance in understanding the strength and compressibility behaviour of the soil, and on the overall stress-strain behaviour that controls a seismic response of the subsoil.340 3307 - PublicationRestrictedSeismic damage to pipelines in the framework of Na-Tech risk assessment(2015)
; ; ; ; ;Lanzano, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Santucci de Magistris, F.; Università degli Studi del Molise ;Fabbrocino, G.; Università degli Studi del Molise ;Salzano, E.; Istituto di Ricerche sulla Combustione, CNR; ; ; The structural integrity of pipelines undergone seismic waves is crucial for industrial installation and for the distributed transportation networks of gaseous and liquid fluids. However, it is nowadays proved that the definition of seismic vulnerability based on purely, structural-derived limit states or on return-to-service or even on the purely economic repair rate indications, is not sufficient for the holistic analysis of risks. On the other hand, detailed numerical studies based on full analyses (including fluid/soil/structure interaction) are too expensive for the aims of risk assessment and simplified methodologies are still needed.In this paper, a large database of earthquake-induced damage for steel and non-steel pipelines is presented. Each case was analyzed and collected from post-earthquake reconnaissance, seismic engineering reports and technical papers. The database may be adopted for the definition of specific vulnerability function (fragility curves), which are commonly implemented in multi-hazard analyses, and more in general for the assessment of Na-Tech risks (Natural events triggering Technological disasters). Seismic damage to pipelines in the framework of Na-Tech risk assessment. Available from: https://www.researchgate.net/publication/271673585_Seismic_damage_to_pipelines_in_the_framework_of_Na-Tech_risk_assessment [accessed Jun 12, 2015].160 38 - PublicationOpen AccessSeismic behaviour of geotechnical structures(2002)
; ; ; ;Sica, S.; Dipartimento di Ingegneria Geotecnica, Polo delle Scienze e delle Tecnologie, Universita' degli Studi di Napoli Federico II, Napoli, Italy ;Santucci de Magistratis, F.; Dipartimento di Ingegneria Geotecnica, Polo delle Scienze e delle Tecnologie, Universita' degli Studi di Napoli Federico II, Napoli, Italy ;Vinale, F.; Dipartimento di Ingegneria Geotecnica, Polo delle Scienze e delle Tecnologie, Universita' degli Studi di Napoli Federico II, Napoli, Italy; ; This paper deals with some fundamental considerations regarding the behaviour of geotechnical structures under seismic loading. First a complete definition of the earthquake disaster risk is provided, followed by the importance of performing site-specific hazard analysis. Then some suggestions are provided in regard to adequate assessment of soil parameters, a crucial point to properly analyze the seismic behaviour of geotechnical structures. The core of the paper is centered on a critical review of the analysis methods available for studying geotechnical structures under seismic loadings. All of the available methods can be classified into three main classes, including the pseudo-static, pseudo-dynamic and dynamic approaches, each of which is reviewed for applicability. A more advanced analysis procedure, suitable for a so-called performance-based design approach, is also described in the paper. Finally, the seismic behaviour of the El Infiernillo Dam was investigated. It was shown that coupled elastoplastic dynamic analyses disclose some of the important features of dam behaviour under seismic loading, confirmed by comparing analytical computation and experimental measurements on the dam body during and after a past earthquake.308 970