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    Seismic Design Method for Thin-Walled Steel Frame Structures

    Source: Journal of Structural Engineering:;2001:;Volume ( 127 ):;issue: 002
    Author:
    Tsutomu Usami
    ,
    Yi Zheng
    ,
    Hanbin Ge
    DOI: 10.1061/(ASCE)0733-9445(2001)127:2(137)
    Publisher: American Society of Civil Engineers
    Abstract: A seismic design method for thin-walled steel frame structures is proposed in the present paper. The method employs a pushover analysis to investigate the structural nonlinear behavior. A failure criterion accounting for the characteristics of thin-walled steel members and an equivalent single–degree-of-freedom (ESDOF) system are used to estimate the capacity and demand of a structure. The proposed method is a displacement-based design procedure in which not only the global maximum drift but also the residual displacement are evaluated. Limitations of the method due to higher modal effects are also studied, and an applicable range of the ESDOF system is proposed. The method is applied to some examples, and the computed results are compared with those from multi–degree-of-freedom time-history analyses. It is found that the dynamic analysis of the ESDOF model with a simplified bilinear hysteretic model can reliably predict the global maximum drift but cannot provide satisfactory estimations for the residual displacements. Thus, empirical equations relating the residual displacement to the maximum displacement are adopted and found feasible.
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      Seismic Design Method for Thin-Walled Steel Frame Structures

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/33549
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    • Journal of Structural Engineering

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    contributor authorTsutomu Usami
    contributor authorYi Zheng
    contributor authorHanbin Ge
    date accessioned2017-05-08T20:57:55Z
    date available2017-05-08T20:57:55Z
    date copyrightFebruary 2001
    date issued2001
    identifier other%28asce%290733-9445%282001%29127%3A2%28137%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/33549
    description abstractA seismic design method for thin-walled steel frame structures is proposed in the present paper. The method employs a pushover analysis to investigate the structural nonlinear behavior. A failure criterion accounting for the characteristics of thin-walled steel members and an equivalent single–degree-of-freedom (ESDOF) system are used to estimate the capacity and demand of a structure. The proposed method is a displacement-based design procedure in which not only the global maximum drift but also the residual displacement are evaluated. Limitations of the method due to higher modal effects are also studied, and an applicable range of the ESDOF system is proposed. The method is applied to some examples, and the computed results are compared with those from multi–degree-of-freedom time-history analyses. It is found that the dynamic analysis of the ESDOF model with a simplified bilinear hysteretic model can reliably predict the global maximum drift but cannot provide satisfactory estimations for the residual displacements. Thus, empirical equations relating the residual displacement to the maximum displacement are adopted and found feasible.
    publisherAmerican Society of Civil Engineers
    titleSeismic Design Method for Thin-Walled Steel Frame Structures
    typeJournal Paper
    journal volume127
    journal issue2
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(2001)127:2(137)
    treeJournal of Structural Engineering:;2001:;Volume ( 127 ):;issue: 002
    contenttypeFulltext
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