| 題名: | 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 |
| 貢獻者: | 淡江大學建築學系 |
| 關鍵詞: | Linear torsion;web-tapered I-beams |
| 日期: | 2008-09 |
| 上傳時間: | 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 |
| 顯示於類別: | [建築學系暨研究所] 期刊論文
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