| 变截面空心薄壁高墩稳定临界力计算 |
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| 引用本文： | 蒋孝辉.变截面空心薄壁高墩稳定临界力计算[J].西部交通科技,2007(6):82-84. |
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| 作者姓名： | 蒋孝辉 |
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| 作者单位： | 中南大学土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 桥梁高墩的稳定性是设计和施工中主要的控制因素,文章介绍根据能量原理的Ritz法,在对截面抗弯惯性矩作线形假定后,推导出一端固支一端自由和一端固支一端水平铰支的变截面空心薄壁高墩失稳临界荷载计算公式,可用于设计施工中对高墩失稳临界荷载的近似计算。
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| 关 键 词： | 桥梁 高墩 Ritz法 稳定性 临界力 |
| 文章编号： | 1673-4874(2007)06-0082-03 |
| 修稿时间： | 2007年11月12 |
Calculation of Constant Critical Force for Hollow Thin-wall High Pier in Variable Crosssection |
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| JIANG Xiao-hui.Calculation of Constant Critical Force for Hollow Thin-wall High Pier in Variable Crosssection[J].Western China Communication Science & Technology,2007(6):82-84. |
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| Authors: | JIANG Xiao-hui |
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| Abstract: | The stability of high bridge pier is the major control factor for bridge design and construction.In the Article,the Ritz method that is on the basis of energy principle has been introduced.After the sectional bending inertia moment being assumed as linear,a formula for instable critical load of hollow thin-wall high pier in variable section can be deducted,where the pier has a fixed end and a free end,or the pier has a fixed end and a horizontal hinged end.The formula can be used in approximate calculation of instable critical load of high pier in the design and construction. |
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| Keywords: | Bridge High pier Ritz method Stability Critical load |
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