RESUMO
Energy is the elusive quantity that is so often quoted asTHE fundamental seismic demand parameter, but which has not yet found its way into the seismic design process. This paper offers arguments why energy spectra should be used to describe seismic demands and presents procedures how cumulative damage can be related to energy demands. (AU)
Assuntos
Terremotos , Fontes de Energia Elétrica , Métodos de Análise Laboratorial e de Campo , Modelos de Riscos Proporcionais , EngenhariaRESUMO
We summarize an integrated model of losses due to earthquake impacts on transportation and industrial capactiy affect the urban economy. The procedure advances transportation and activity system analysis techniques in ways that help capture the most important economic implications of earthquakes.Network costs and origin/destination requirements are endogenous and consistent. Indirect and induced losses associated with direct impacts on transportation and industrial capacity are distributed across zones and economic sectors. This study of the tansportation network is suggested as a template for studying the full range of losses associated with other lifeline impacts. (AU)
Assuntos
Terremotos , Desenvolvimento Econômico , Modelos de Riscos Proporcionais , Métodos de Análise Laboratorial e de Campo , EngenhariaAssuntos
Inundações , Gestão de Riscos , Modelos de Riscos Proporcionais , Costa Rica , Hidrologia , HidráulicaRESUMO
A statistical regression method is used to evaluate the liquefaction potential in Jefferson County, Kentucky due to large earthquake in the New Madrid Seismic Zone. The potential is represented as a liquefaction severity index scaled to the tickness of susceptible soil layers, The method uses soil data from the existing geotechnical borehole logs and water well logs that include soil type, SPT results, depth to bedrock and water table level information. The modifying effect of the soil profile on the local bedrock acceleration is accounted for through a one dimensional, linear mode, soil response analysis (AU)
Assuntos
Terremotos , Análise de Regressão , Avaliação de Danos , 25686 , Kentucky , Medição de Risco , Modelos de Riscos Proporcionais , Estados UnidosRESUMO
Las características de tres modelos numéricos de predicción del viento en huracanes fueron estudiadas para compararlas con los efectos producidos al acoplarse a un modelo de generación de olas. La diferencia en la altura de ola producida por el modelo de generación de olas se obtuvo como respuesta a los diferentes perfiles de vientos y a su magnitud máxima alrededor del radio del huracán. Un nuevo modelo de viento fue adaptado al modelo de generación de olas para producir un mayor ajuste de la altura y espectro de energía de las olas, empleando datos observados durante el huracán Camille en 1969 a su paso por el Golfo de México (AU)