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    Modeling the Dynamic Behavior of Isolation Devices in a Hybrid Base-Isolation Layer of a Full-Scale Building

    Source: Journal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 011
    Author:
    Patrick T. Brewick
    ,
    Erik A. Johnson
    ,
    Eiji Sato
    ,
    Tomohiro Sasaki
    DOI: 10.1061/(ASCE)EM.1943-7889.0001774
    Publisher: ASCE
    Abstract: Measured force-displacement sensing data are analyzed to create nonlinear hysteretic models for elastic sliding bearings and steel dampers. These data were collected during full-scale experimental tests of a base-isolated structure at Japan’s National Research Institute for Earth Science and Disaster Resilience (NIED) “E-Defense” Hyogo Earthquake Engineering Research Center in 2013 that employed historical and synthetic earthquake inputs. Several models are explored for each isolation-layer device, including Coulomb friction models for the elastic sliding bearings and Bouc-Wen hysteresis models for both devices. Parameters for each device model are estimated via constrained nonlinear optimization to minimize model prediction error using testing data. The resulting models are applied to data from other seismic tests to evaluate the models’ ability to provide accurate force predictions. The model for the steel dampers demonstrates the capacity to be generalized across seismic excitations and devices, whereas the model for the elastic sliding bearing reproduces well its behavior during other seismic excitations but is limited to the device to which it was calibrated. The residual error between the model predictions and measurements does not contribute a significant degree of variance in the model parameter estimates.
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      Modeling the Dynamic Behavior of Isolation Devices in a Hybrid Base-Isolation Layer of a Full-Scale Building

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4268543
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    contributor authorPatrick T. Brewick
    contributor authorErik A. Johnson
    contributor authorEiji Sato
    contributor authorTomohiro Sasaki
    date accessioned2022-01-30T21:37:22Z
    date available2022-01-30T21:37:22Z
    date issued11/1/2020 12:00:00 AM
    identifier other%28ASCE%29EM.1943-7889.0001774.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268543
    description abstractMeasured force-displacement sensing data are analyzed to create nonlinear hysteretic models for elastic sliding bearings and steel dampers. These data were collected during full-scale experimental tests of a base-isolated structure at Japan’s National Research Institute for Earth Science and Disaster Resilience (NIED) “E-Defense” Hyogo Earthquake Engineering Research Center in 2013 that employed historical and synthetic earthquake inputs. Several models are explored for each isolation-layer device, including Coulomb friction models for the elastic sliding bearings and Bouc-Wen hysteresis models for both devices. Parameters for each device model are estimated via constrained nonlinear optimization to minimize model prediction error using testing data. The resulting models are applied to data from other seismic tests to evaluate the models’ ability to provide accurate force predictions. The model for the steel dampers demonstrates the capacity to be generalized across seismic excitations and devices, whereas the model for the elastic sliding bearing reproduces well its behavior during other seismic excitations but is limited to the device to which it was calibrated. The residual error between the model predictions and measurements does not contribute a significant degree of variance in the model parameter estimates.
    publisherASCE
    titleModeling the Dynamic Behavior of Isolation Devices in a Hybrid Base-Isolation Layer of a Full-Scale Building
    typeJournal Paper
    journal volume146
    journal issue11
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)EM.1943-7889.0001774
    page17
    treeJournal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 011
    contenttypeFulltext
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