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題 名 | Axial Constraints in Frame Analysis=剛架受軸向變形束制之分析 |
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作 者 | 郭瑞芳; 潘誠平; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 19:1 2007.03[民96.03] |
頁 次 | 頁91-100 |
分類號 | 441.1 |
關鍵詞 | 軸向變形束制; 同餘轉換法; 位移模態; 直接勁度法; Axial constraint; Contragradient transformation; Mode shape; Direct stiffness method; |
語 文 | 英文(English) |
中文摘要 | 這篇論文提出了剛架在軸向束制下的分析方法,此法相較於現有方法做了許多改進。在本文所有的推論都是運用基本的結構工程理論與觀念。 現行結構分析,許多是忽略軸向變形的。本文建議的分析方法,提出一「類比桁架」之概念,對此「類比桁架」,依結點平衡原理求得平衡係數矩陣,由平衡係數矩陣經高斯消去法可得所謂「模態形狀向量」。應用所得各個模態形狀向量到各元素之勁度及結點作用力向量作座標轉換計算。所得的各元素勁度經過直接勁度法組成結構勁度矩陣。 |
英文摘要 | This paper proposes a new frame analysis methodology that considers axial constraints and which, the authors believe, represents a significant improvement over current methodologies. All processes employed in this paper can be accomplished using fundamental engineering principles and concepts. Structural analysis, as currently practiced, typically does not consider axial deformation. The frame analysis methodology proposed in this paper uses analogous truss model data derived from the original frame to establish equilibrium relations and then employs Gauss elimination to solve the simultaneous equations that correspond to the proposed structural system. The solved mode shape matrix is then used to modify the equivalent nodal loads and stiffness matrix of the original frame. This study makes use of the direct stiffness method. |
本系統中英文摘要資訊取自各篇刊載內容。