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    Rocking Response of Anchored Blocks under Pulse-Type Motions

    Source: Journal of Engineering Mechanics:;2001:;Volume ( 127 ):;issue: 005
    Author:
    Nicos Makris
    ,
    Jian Zhang
    DOI: 10.1061/(ASCE)0733-9399(2001)127:5(484)
    Publisher: American Society of Civil Engineers
    Abstract: This paper examines the transient rocking response of anchored blocks subjected to physically realizable horizontal pulse-type motion. Restrainers with elastic-brittle and elastic-plastic behavior are considered. Under one-sine pulse, anchored blocks can overturn with two distinct modes of overturning: (1) by exhibiting one impact; and (2) without exhibiting any impact. It is found that restrainers are more efficient in preventing overturning of small slender blocks subjected to low frequency pulses. This study uncovers that, although for most of the frequency range anchored blocks survive higher accelerations than free-standing blocks, there is a finite frequency range where the opposite happens. This paper examines this counterintuitive behavior and explains the destructive effect that increased strength and increased ductility of restrainers have on the rocking stability of rigid structures when excited by certain ground motions.
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      Rocking Response of Anchored Blocks under Pulse-Type Motions

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    contributor authorNicos Makris
    contributor authorJian Zhang
    date accessioned2017-05-08T22:39:33Z
    date available2017-05-08T22:39:33Z
    date copyrightMay 2001
    date issued2001
    identifier other%28asce%290733-9399%282001%29127%3A5%28484%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/85379
    description abstractThis paper examines the transient rocking response of anchored blocks subjected to physically realizable horizontal pulse-type motion. Restrainers with elastic-brittle and elastic-plastic behavior are considered. Under one-sine pulse, anchored blocks can overturn with two distinct modes of overturning: (1) by exhibiting one impact; and (2) without exhibiting any impact. It is found that restrainers are more efficient in preventing overturning of small slender blocks subjected to low frequency pulses. This study uncovers that, although for most of the frequency range anchored blocks survive higher accelerations than free-standing blocks, there is a finite frequency range where the opposite happens. This paper examines this counterintuitive behavior and explains the destructive effect that increased strength and increased ductility of restrainers have on the rocking stability of rigid structures when excited by certain ground motions.
    publisherAmerican Society of Civil Engineers
    titleRocking Response of Anchored Blocks under Pulse-Type Motions
    typeJournal Paper
    journal volume127
    journal issue5
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(2001)127:5(484)
    treeJournal of Engineering Mechanics:;2001:;Volume ( 127 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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