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    Nonlinear Dynamic Analysis of Curved Surface Slider Systems Under Harmonic, Near-Fault, and Long-Period Ground Motions

    Source: Journal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 009
    Author:
    Nicholas D. Oliveto
    DOI: 10.1061/(ASCE)EM.1943-7889.0001825
    Publisher: ASCE
    Abstract: Seismic isolation is a widely adopted technology for the protection of building infrastructure from earthquakes. As one of the most effective seismic protection devices, curved surface slider (CSS) systems have been studied extensively in the last few decades and are nowadays widely used all over the world. However, due to their relatively recent adoption for the seismic isolation of buildings and bridges, critical aspects of their behavior and possible causes for their malfunctioning are still under thorough experimental and analytical investigation. After recent severe earthquakes, such as Kobe (1995) and Tohoku (2011), considerable attention has been devoted to the effects of near-fault and long-period earthquakes, with specific reference to tall buildings and base-isolated structures. However, no reference has been made in the literature to the resonant effects of nearly periodic ground motions on CSS systems. For the low friction coefficient values used in seismic isolation, the linear theory currently used for the analysis of the response of friction-based systems leads to an unbounded resonant response. It is the focus of this work to investigate the effects of geometric nonlinearity on the response of such systems and to assess the performance of the CSS system under critical ground motions. Dynamic analyses are carried out under harmonic, near-fault, and long-period ground motions. The results are presented in the form of displacement response spectra for different values of the friction coefficient.
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      Nonlinear Dynamic Analysis of Curved Surface Slider Systems Under Harmonic, Near-Fault, and Long-Period Ground Motions

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4268567
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    contributor authorNicholas D. Oliveto
    date accessioned2022-01-30T21:38:10Z
    date available2022-01-30T21:38:10Z
    date issued9/1/2020 12:00:00 AM
    identifier other%28ASCE%29EM.1943-7889.0001825.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268567
    description abstractSeismic isolation is a widely adopted technology for the protection of building infrastructure from earthquakes. As one of the most effective seismic protection devices, curved surface slider (CSS) systems have been studied extensively in the last few decades and are nowadays widely used all over the world. However, due to their relatively recent adoption for the seismic isolation of buildings and bridges, critical aspects of their behavior and possible causes for their malfunctioning are still under thorough experimental and analytical investigation. After recent severe earthquakes, such as Kobe (1995) and Tohoku (2011), considerable attention has been devoted to the effects of near-fault and long-period earthquakes, with specific reference to tall buildings and base-isolated structures. However, no reference has been made in the literature to the resonant effects of nearly periodic ground motions on CSS systems. For the low friction coefficient values used in seismic isolation, the linear theory currently used for the analysis of the response of friction-based systems leads to an unbounded resonant response. It is the focus of this work to investigate the effects of geometric nonlinearity on the response of such systems and to assess the performance of the CSS system under critical ground motions. Dynamic analyses are carried out under harmonic, near-fault, and long-period ground motions. The results are presented in the form of displacement response spectra for different values of the friction coefficient.
    publisherASCE
    titleNonlinear Dynamic Analysis of Curved Surface Slider Systems Under Harmonic, Near-Fault, and Long-Period Ground Motions
    typeJournal Paper
    journal volume146
    journal issue9
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)EM.1943-7889.0001825
    page16
    treeJournal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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