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    题名: An iterative approach to linear torsion analysis of web-tapered I-beams using a uniform I-beam element
    作者: 姚忠達;Yau, Jong-dar
    贡献者: 淡江大學建築學系
    关键词: Linear torsion;web-tapered I-beams
    日期: 2008-09
    上传时间: 2010-08-09 18:00:27 (UTC+8)
    出版者: Singapore: World Scientific Publishing Co. Pte. Ltd.
    摘要: Uniform I-beam elements are not suitable for simulating the torsional behavior of web-tapered I-beams since they fail to account for the torsional effect associated with web-tapering. To resolve this problem, an iterative approach is presented for computing the linear torsional response of web-tapered I-beams using an existing uniform I-beam element. An iterative procedure includes three phases: predictor, corrector, and error-checking. In this paper, the predictor is a solution of the structural displacements using the conventional uniform I-beam elements, and the corrector is concerned with recovery of internal forces, in which the element forces are computed in an analytical way, taking into account the torsional effect of a twisted I-beam considering web-tapering. The applicability and accuracy of the iterative approach presented herein are confirmed by comparing the computed responses for a torsionally loaded I-beam with varied web-tapering to the exact solutions.
    關聯: International Journal of Structural Stability and Dynamics 8(3), pp.521-529
    DOI: 10.1142/S0219455408002788
    显示于类别:[建築學系暨研究所] 期刊論文


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