Examinando por Materia "Seismic response"

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    Ítem
    Development of a global seismic risk model
    (EARTHQUAKE ENGINEERING RESEARCH INST, 2020-02-02) Vitor Silva; Desmond Amo-Oduro; Alejandro Calderon; Catarina Costa; Jamal Dabbeek; Venetia Despotaki; Luis Martins; Marco Pagani; Anirudh Rao; Michele Simionato; Daniele Viganò; Catalina Yepes-Estrada; Ana Acevedo; Helen Crowley; Nick Horspool; Kishor Jaiswal; Murray Journeay; Massimiliano Pittore; Mecánica Aplicada
    Since 2015, the Global Earthquake Model (GEM) Foundation and its partners have been supporting regional programs and bilateral collaborations to develop an open global earthquake risk model. These efforts led to the development of a repository of probabilistic seismic hazard models, a global exposure dataset comprising structural and occupancy information regarding the residential, commercial and industrial buildings, and a comprehensive set of fragility and vulnerability functions for the most common building classes. These components were used to estimate probabilistic earthquake risk globally using the OpenQuake-engine, an open-source software for seismic hazard and risk analysis. This model allows estimating a number of risk metrics such as annualized average losses or aggregated losses for particular return periods, which are fundamental to the development and implementation of earthquake risk mitigation measures. © The Author(s) 2020.
  • No hay miniatura disponible
    Ítem
    Development of a global seismic risk model
    (EARTHQUAKE ENGINEERING RESEARCH INST, 2020-02-02) Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Acevedo, A.; EUCENTRE; GNS Science; US Geological Survey; Natural Resources of Canada; GFZ Potsdam; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Global Earthquake Model Foundation; Acevedo, A.; EUCENTRE; GNS Science; US Geological Survey; Natural Resources of Canada; GFZ Potsdam; Universidad EAFIT. Departamento de Ingeniería de Producción; Materiales de Ingeniería
    Since 2015, the Global Earthquake Model (GEM) Foundation and its partners have been supporting regional programs and bilateral collaborations to develop an open global earthquake risk model. These efforts led to the development of a repository of probabilistic seismic hazard models, a global exposure dataset comprising structural and occupancy information regarding the residential, commercial and industrial buildings, and a comprehensive set of fragility and vulnerability functions for the most common building classes. These components were used to estimate probabilistic earthquake risk globally using the OpenQuake-engine, an open-source software for seismic hazard and risk analysis. This model allows estimating a number of risk metrics such as annualized average losses or aggregated losses for particular return periods, which are fundamental to the development and implementation of earthquake risk mitigation measures. © The Author(s) 2020.
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    Ítem
    Seismic response of three-dimensional rockfill dams using the Indirect Boundary Element Method
    (IOP PUBLISHING LTD, 2014-01-01) Sánchez-Sesma, F.J.; Arellano-Guzmán, M.; Pérez-Gavilán, J.J.; Suarez, M.; Marengo-Mogollón, H.; Chaillat, S.; Jaramillo, J.D.; Gómez, J.; Iturrarán-Viveros, U.; Rodríguez-Castellanos, A.; Sánchez-Sesma, F.J.; Arellano-Guzmán, M.; Pérez-Gavilán, J.J.; Suarez, M.; Marengo-Mogollón, H.; Chaillat, S.; Jaramillo, J.D.; Gómez, J.; Iturrarán-Viveros, U.; Rodríguez-Castellanos, A.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Mecánica Aplicada
    The Indirect Boundary Element Method (IBEM) is used to compute the seismic response of a three-dimensional rockfill dam model. The IBEM is based on a single layer integral representation of elastic fields in terms of the full-space Green function, or fundamental solution of the equations of dynamic elasticity, and the associated force densities along the boundaries. The method has been applied to simulate the ground motion in several configurations of surface geology. Moreover, the IBEM has been used as benchmark to test other procedures. We compute the seismic response of a three-dimensional rockfill dam model placed within a canyon that constitutes an irregularity on the surface of an elastic half-space. The rockfill is also assumed elastic with hysteretic damping to account for energy dissipation. Various types of incident waves are considered to analyze the physical characteristics of the response: symmetries, amplifications, impulse response and the like. Computations are performed in the frequency domain and lead to time response using Fourier analysis. In the present implementation a symmetrical model is used to test symmetries. The boundaries of each region are discretized into boundary elements whose size depends on the shortest wavelength, typically, six boundary segments per wavelength. Usually, the seismic response of rockfill dams is simulated using either finite elements (FEM) or finite differences (FDM). In most applications, commercial tools that combine features of these methods are used to assess the seismic response of the system for a given motion at the base of model. However, in order to consider realistic excitation of seismic waves with different incidence angles and azimuth we explore the IBEM. © 2010 IOP Publishing Ltd.