| 薄壁梁的单元刚度矩阵及其应用 |
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| 引用本文： | 李开禧,赵广坡,熊晓莉. 薄壁梁的单元刚度矩阵及其应用[J]. 土木与环境工程学报, 2004, 26(5): 35-38 |
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| 作者姓名： | 李开禧 赵广坡 熊晓莉 |
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| 作者单位： | 1. 重庆大学,土木工程学院,重庆,400045
2. 西南建筑设计研究院,四川,成都,610081 |
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| 摘 要： | 按文[1]所述截面正投影绕定轴转动的概念,直接导出薄壁梁的单元刚度矩阵,并利用直接刚度法求解弯心不共线的连续梁.算例表明,它和用柔度矩阵按力法求解的结果是相同的,但计算过程更简单.
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| 关 键 词： | 薄壁构件 弯心不共线 单元刚度矩阵 直接刚度法 |
| 文章编号： | 1006-7329(2004)05-0035-04 |
| 修稿时间： | 2004-05-10 |
Elemental Stiffness Matrix of Thin-walled Beam and Its Application |
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| LI Kai-xi~,ZHAO Guang-po~,XIONG Xiao-li~. Elemental Stiffness Matrix of Thin-walled Beam and Its Application[J]. Journal of Civil and Environmental Engineering, 2004, 26(5): 35-38 |
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| Authors: | LI Kai-xi~ ZHAO Guang-po~ XIONG Xiao-li~ |
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| Affiliation: | LI Kai-xi~1,ZHAO Guang-po~2,XIONG Xiao-li~1 |
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| Abstract: | In this paper, according to the conception of rotation of the section orthographic projection around a fixed axis, the element stiffness matrix of thin-walled beam is directly deduced and the direct stiffness method is used to solve the continuous beam problem with different shear centers on one section. It is suggested through an example that when the element flexibility matrix and force method are used to solve the same question, the same answer will be gained, but the method used in this paper is simpler. |
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| Keywords: | thin-walled element non-superposition shear center element stiffness matrix direct stiffness method |
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