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    Seismic Response of Full-Scale Structure with Added Viscoelastic Dampers

    Source: Journal of Structural Engineering:;2004:;Volume ( 130 ):;issue: 004
    Author:
    Kuo-Chun Chang
    ,
    Yu-Yuan Lin
    DOI: 10.1061/(ASCE)0733-9445(2004)130:4(600)
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents the test and analytical results of a full-scale 5 story steel frame with added viscoelastic (VE) dampers. The ISD110 VE dampers made by 3M Company are installed to the long (East–West) direction of the structure. In addition to carrying out ambient and free vibration tests, the dynamic responses of the VE structure under four moderate earthquakes are recorded and analyzed. The ambient vibration tests show that the increase of damping in the full-scale structure is not obvious because of the small input energy. Nevertheless, in the free vibration tests and under earthquake ground motions, the increase of damping ratio is very significant. Analytical results show that when the structure is added with the diagonal–damper–brace assemblies, the modal strain energy method that has been validated by extensive shaking table tests on small-scale models slightly overestimates the damping ratio of the full-scale structure. However, when the structure is added with the floor–damper–brace assemblies, the method slightly underestimates the damping ratio. In addition to providing important database for verifying the effectiveness of applying the VE dampers to full-scale structures, this study also obtains important experiences concerning the implementation and detailed design of damper connections for practical applications.
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      Seismic Response of Full-Scale Structure with Added Viscoelastic Dampers

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/34282
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    • Journal of Structural Engineering

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    contributor authorKuo-Chun Chang
    contributor authorYu-Yuan Lin
    date accessioned2017-05-08T20:59:02Z
    date available2017-05-08T20:59:02Z
    date copyrightApril 2004
    date issued2004
    identifier other%28asce%290733-9445%282004%29130%3A4%28600%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/34282
    description abstractThis paper presents the test and analytical results of a full-scale 5 story steel frame with added viscoelastic (VE) dampers. The ISD110 VE dampers made by 3M Company are installed to the long (East–West) direction of the structure. In addition to carrying out ambient and free vibration tests, the dynamic responses of the VE structure under four moderate earthquakes are recorded and analyzed. The ambient vibration tests show that the increase of damping in the full-scale structure is not obvious because of the small input energy. Nevertheless, in the free vibration tests and under earthquake ground motions, the increase of damping ratio is very significant. Analytical results show that when the structure is added with the diagonal–damper–brace assemblies, the modal strain energy method that has been validated by extensive shaking table tests on small-scale models slightly overestimates the damping ratio of the full-scale structure. However, when the structure is added with the floor–damper–brace assemblies, the method slightly underestimates the damping ratio. In addition to providing important database for verifying the effectiveness of applying the VE dampers to full-scale structures, this study also obtains important experiences concerning the implementation and detailed design of damper connections for practical applications.
    publisherAmerican Society of Civil Engineers
    titleSeismic Response of Full-Scale Structure with Added Viscoelastic Dampers
    typeJournal Paper
    journal volume130
    journal issue4
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(2004)130:4(600)
    treeJournal of Structural Engineering:;2004:;Volume ( 130 ):;issue: 004
    contenttypeFulltext
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