| 体外预应力效应的有限元模拟方法 |
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| 引用本文： | 吕士军,孙建渊.体外预应力效应的有限元模拟方法[J].山西建筑,2008,34(24). |
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| 作者姓名： | 吕士军 孙建渊 |
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| 作者单位： | 1. 安徽阜阳城乡规划设计研究院,安徽阜阳,236000
2. 同济大学桥梁工程系,上海,200092 |
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| 摘 要： | 对体外预应力钢索的传力特点进行了研究,推导了体外索单元刚度矩阵在桥梁有限元分析中的转换公式,从而得出两端带刚臂体外索单元的刚度矩阵,实现了体外预应力效应的有限元模拟.
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| 关 键 词： | 体外预应力 刚度矩阵 刚臂 有限元 |
Finite element method for the effect of external prestress |
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| LV Shi-jun,SUN Jian-yuan.Finite element method for the effect of external prestress[J].Shanxi Architecture,2008,34(24). |
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| Authors: | LV Shi-jun SUN Jian-yuan |
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| Affiliation: | LV Shi-jun SUN Jian-yuan |
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| Abstract: | The mechanical behavior of the external prestressed steel is studied in this paper.The stiffness matrix with rigid arms on two sides for the external steel element is obtained by deriving the transformation formulae in finite element analyses of the bridge.It is implemented to directly model the effect of external prestress by finite element methods. |
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| Keywords: | external prestress tangent stiffness matrix geometric stiffness matrix finite element |
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