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    Analysis of Behavior of Earth Dam Using Strong‐Motion Earthquake Records

    Source: Journal of Geotechnical Engineering:;1992:;Volume ( 118 ):;issue: 002
    Author:
    Mourad Zeghal
    ,
    Ahmed M. Abdel‐Ghaffar
    DOI: 10.1061/(ASCE)0733-9410(1992)118:2(266)
    Publisher: American Society of Civil Engineers
    Abstract: The seismic records of the Long Valley Earth Dam are utilized in order to shed some light on the salient features of the dam nonlinear behavior. The dam is well instrumented with 22 accelerographs tied with a common triggering. It was shaken in the 1980s by a series of earthquakes that varied in intensity and maximum induced accelerations. The analysis is based on ideas of system‐identification techniques. A preliminary pattern recognition, based on a spectral analysis, shows evidence of three‐dimensionality and nonlinearity in the dam behavior and of seismic wave propagation at its boundaries. The investigation shows that, although constitutive hysteretic models provide reasonable approximations, they are insufficient to fully account for all the vibrational dissipation mechanisms. It also reveals that the model response in the upstream‐downstream direction has a better quality of fitness to the recorded response than do the responses in the longitudinal and vertical directions. Furthermore, the analysis shows an insufficiency of the instrumentation at the structures boundaries. Finally, this case study shows that seismic records can be utilized to produce a wealth of information not available by other means.
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      Analysis of Behavior of Earth Dam Using Strong‐Motion Earthquake Records

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    http://yetl.yabesh.ir/yetl1/handle/yetl/20969
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    contributor authorMourad Zeghal
    contributor authorAhmed M. Abdel‐Ghaffar
    date accessioned2017-05-08T20:36:21Z
    date available2017-05-08T20:36:21Z
    date copyrightFebruary 1992
    date issued1992
    identifier other%28asce%290733-9410%281992%29118%3A2%28266%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/20969
    description abstractThe seismic records of the Long Valley Earth Dam are utilized in order to shed some light on the salient features of the dam nonlinear behavior. The dam is well instrumented with 22 accelerographs tied with a common triggering. It was shaken in the 1980s by a series of earthquakes that varied in intensity and maximum induced accelerations. The analysis is based on ideas of system‐identification techniques. A preliminary pattern recognition, based on a spectral analysis, shows evidence of three‐dimensionality and nonlinearity in the dam behavior and of seismic wave propagation at its boundaries. The investigation shows that, although constitutive hysteretic models provide reasonable approximations, they are insufficient to fully account for all the vibrational dissipation mechanisms. It also reveals that the model response in the upstream‐downstream direction has a better quality of fitness to the recorded response than do the responses in the longitudinal and vertical directions. Furthermore, the analysis shows an insufficiency of the instrumentation at the structures boundaries. Finally, this case study shows that seismic records can be utilized to produce a wealth of information not available by other means.
    publisherAmerican Society of Civil Engineers
    titleAnalysis of Behavior of Earth Dam Using Strong‐Motion Earthquake Records
    typeJournal Paper
    journal volume118
    journal issue2
    journal titleJournal of Geotechnical Engineering
    identifier doi10.1061/(ASCE)0733-9410(1992)118:2(266)
    treeJournal of Geotechnical Engineering:;1992:;Volume ( 118 ):;issue: 002
    contenttypeFulltext
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