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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/36255

    Title: 部份降伏斷面之非線性分析
    Other Titles: Nonlinear Analysis of Partially Yielded Section
    Authors: 郭瑞芳;潘誠平;Pan, Chan-ping;Kuo, Juei-fang
    Contributors: 淡江大學土木工程學系
    Keywords: 彈塑性分析;不平衡力;數值方法;Elasto-Plastic Analysis;Unbalanced Forces;Numerical Analysis
    Date: 1998-09
    Issue Date: 2010-01-11 10:33:56 (UTC+8)
    Publisher: 臺北市:中華民國結構工程學會
    Abstract: 材料降伏導致之結構非線性反應,於一般設計工作中多採簡化之塑性鉸之假設,但塑性鉸之假設對於斷面部分降伏、塑性區之分佈等皆無法做一準確之描述。本文旨在建立一直接而簡明之結構桿件部份斷面降伏之分析方法。
    Yielding is one of the reason to cause the nonlinear response of a structure. Most of the usual design works adopted a simplified plastic hinge assumption. But the simplified assumption ignored the effects such as partially yielded section, the spread of yield zone, etc.A direct and simple derivation was made in this paper for a partially yielded beam.
    The incremental load method and tangent stiffness matrix were incorporated into acombined Newton-Raphson method and modified Newton-Raphson method. The joint displacement vectors were obtained sequentially in each solution step. Then the end forces of each member were obtained according to the compatibility equation and constitutive equation, etc. The unbalanced force vectors and related incremental displacement vectors were corrected continually until the convergence criterion was satisfied. The first step of calculating the end forces was to make an initial estimate of the solution range. The trial solutions were calculated at each mesh joints. Three different methods were developed to narrow down the estimated range to an accepted small tolerance.
    Relation: 中華民國第四屆結構工程研討會論文集(二)=Proceedings of the 4th National Conference on Structural Engineering,頁1349-1356
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Proceeding

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