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    Outrigger-Belt and Frame Interaction in Composite Tall Buildings under Differential Axial Shortening

    Source: Journal of Architectural Engineering:;2017:;Volume ( 023 ):;issue: 003
    Author:
    Dilrukshie I. Samarakkody
    ,
    David P. Thambiratnam
    ,
    Tommy H. T. Chan
    ,
    Praveen H. N. Moragaspitiya
    DOI: 10.1061/(ASCE)AE.1943-5568.0000243
    Publisher: American Society of Civil Engineers
    Abstract: This paper treats the interaction of outrigger-belt systems (OBS) with structural frames in high-rise buildings with composite columns caused by differential axial shortening (DAS). The presence of OBS significantly reduces DAS in composite buildings, but when used without belts, the DAS problem is aggravated. Current methods using results from elastic single-step or staged construction reduce the accuracy of DAS predictions and result in either unsafe or overconservative designs of OBS. For modern complex buildings, the comprehensive method used in this paper, which incorporates all the influencing factors including the outrigger-belt and frame interactions, provide more accurate results. Findings from the present study show that locations of OBS influence DAS considerably and can be used for minimizing DAS. Delayed connection of outrigger walls to perimeter columns can mitigate the adverse effects of DAS, with a delay of 1–2 weeks resulting in significant reductions in stresses developed because of DAS. Information generated in this paper will be useful for planning suitable methods for OBS analysis and to minimize adverse effects of DAS in composite high-rise buildings.
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      Outrigger-Belt and Frame Interaction in Composite Tall Buildings under Differential Axial Shortening

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    contributor authorDilrukshie I. Samarakkody
    contributor authorDavid P. Thambiratnam
    contributor authorTommy H. T. Chan
    contributor authorPraveen H. N. Moragaspitiya
    date accessioned2017-12-30T13:03:17Z
    date available2017-12-30T13:03:17Z
    date issued2017
    identifier other%28ASCE%29AE.1943-5568.0000243.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4245096
    description abstractThis paper treats the interaction of outrigger-belt systems (OBS) with structural frames in high-rise buildings with composite columns caused by differential axial shortening (DAS). The presence of OBS significantly reduces DAS in composite buildings, but when used without belts, the DAS problem is aggravated. Current methods using results from elastic single-step or staged construction reduce the accuracy of DAS predictions and result in either unsafe or overconservative designs of OBS. For modern complex buildings, the comprehensive method used in this paper, which incorporates all the influencing factors including the outrigger-belt and frame interactions, provide more accurate results. Findings from the present study show that locations of OBS influence DAS considerably and can be used for minimizing DAS. Delayed connection of outrigger walls to perimeter columns can mitigate the adverse effects of DAS, with a delay of 1–2 weeks resulting in significant reductions in stresses developed because of DAS. Information generated in this paper will be useful for planning suitable methods for OBS analysis and to minimize adverse effects of DAS in composite high-rise buildings.
    publisherAmerican Society of Civil Engineers
    titleOutrigger-Belt and Frame Interaction in Composite Tall Buildings under Differential Axial Shortening
    typeJournal Paper
    journal volume23
    journal issue3
    journal titleJournal of Architectural Engineering
    identifier doi10.1061/(ASCE)AE.1943-5568.0000243
    page04017016
    treeJournal of Architectural Engineering:;2017:;Volume ( 023 ):;issue: 003
    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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