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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/69338

    Title: 具摩擦及消能機制 之特殊桁架抗彎構架耐震行為研究
    Authors: 張鄭璨;Tsan,Chang-Cheng
    Contributors: 土木工程學系
    Keywords: 特殊桁架抗彎構架;摩擦力;耐震設計
    Date: 2016-01-27
    Issue Date: 2016-03-17 18:14:51 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 特殊韌性桁架抗彎構架(Special Truss Moment Frame, STMF)
    為一種具有良好消能行為之構架。空腹構架(Open-web Truss Moment
    震經驗中發現此種結構之抗震行為不佳。自從1989 年開始,密西根
    (X-Diagonal Configuration),另一種為威廉地爾式(Vierendeel
    Configuration)。 然而不論是威廉地爾式或交叉拉桿式,皆於特殊
    一有效之耐震設計方案。;Special Truss Moment Frame is an effective structural form that
    adopting open-web truss design. The advantages of open-web truss
    moment frame include the lower cost and easier beam-column joint
    design. However, the seismic behavior of such system is questionable,
    because of the buckling concern of web member in early stage of the
    load application. This system has been investigated by researchers from
    the University of Michigan. Two types of modification, the x-diagonal
    configuration and the Vierendeel frame, have been proposed.
    Although the x-diagonal configuration and the Vierendeel frame
    have been proven to possess high strength, the plastic hinges occur at
    the upper and bottom chords of special segment remain a concern.
    This study focused on the further improvement of special truss
    moment frame by using the steel bar and friction mechanism in the
    special diagonals. It was found from the test results that the proposed
    steel bars were subject to tension only during the cyclic loading,
    therefore the buckling could be avoided. Further observation on the
    responses validated that the friction mechanism effectively dissipated
    energy and maintained the structural stability after the steel bars were
    fractured. The above phenomena demonstrated the effectiveness of the
    proposed design method.
    Appears in Collections:[土木工程研究所] 博碩士論文

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