1,720,993 research outputs found
Vulnerabilità sismica degli edifici in c.a. - Nota 1: indagini parametriche sulla resistenza alle azioni laterali di telai piani in c.a. tamponati
No full textVulnerabilità sismica degli edifici in c.a. - Nota 2: Portam: un software per la valutazione della resistenza alle azioni laterali di telai spaziali in c.a. tamponati
No full textSui parametri relativi alla definizione dei terremoti di progetto negli studi di pericolosità sismica
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Proposta di definizione delle relazioni tra intensità macrosismica e parametri del moto del suolo
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Some remarks on the Umbria-Marche Earthquakes of 1997
No full textAim of this paper is the investigation on the main characteristics and the consequences of the seismic sequence which caused considerable damage in the central part of Italy on September and October 1997. The time evolution, in terms of released energy, magnitude and macroseismic distribution was first analysed. Then, a study of the seismic history of Umbria-Marche Apennine was performed, in order to gain a better comprehension of such distinctive seismic sequence, and to highlight some seismologic characteristics of the region. As the evaluation of the destructive potential of the ground motion requires the knowledge of a significant index of the distance from the source, it was necessary to formulate a preliminary hypothesis of the geometry of the source and of its spatial position. Starting from the trace of the assumed source, considering an extensive mechanism and accepting the hypothesis of evolution of the process of rupture, the strong ground motion derived from the accelerometric records, including a significant example of site effects, was investigated. Finally, in the areas the most hardly hit by the earthquake the damage in masonry buildings was analysed
Alcune considerazioni sul potenziale di danneggiamento del terremoto della Sicilia Orientale del 13 Dicembre 1990
No full textAlgunas consideraciones sobre la correlaciones entre intensidad macrosismica y parametros del movimiento del suelo
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