| 大跨连续刚构桥的高墩弹性稳定分析 |
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| 引用本文： | 王解军,陈铨恺.大跨连续刚构桥的高墩弹性稳定分析[J].中南公路工程,2006,31(6):46-50,78. |
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| 作者姓名： | 王解军 陈铨恺 |
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| 作者单位： | 湖南大学土木工程学院,湖南长沙410082 |
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| 摘 要： | 基于经典弹性理论判别等截面柱在均布荷载及风载作用下的一阶失稳模态，然后根据有限元方法．应用大型通用软件ANSYS，对连续剐构桥施工过程的高墩弹性稳定进行了分析，算得其失稳模态、失稳特征值以及临界荷载，比较了2种方法的分析结果；并且对连续刚构桥高墩的失稳安全储备给予一定建议。
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| 关 键 词： | 连续刚构桥 高墩 施工过程 弹性稳定 分析 |
| 文章编号： | 1002-1205（2006）06-0046-05 |
| 收稿时间： | 2006-07-13 |
| 修稿时间： | 2006-07-13 |
High Pier Elastic Stability Analysis of Long Span Continuous Frame Bridge |
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| WANG Jiejun, CHEN Quankai ,.High Pier Elastic Stability Analysis of Long Span Continuous Frame Bridge[J].Central South Highway Engineering,2006,31(6):46-50,78. |
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| Authors: | WANG Jiejun CHEN Quankai |
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| Institution: | College of Civil Engineering, Hunan University, Changsha, 410082 |
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| Abstract: | Based on the classical elastic theories, the first-order buckling modal of a constant cross-section column was distinguished, with the effect of uniformly distributed load and wind load. Through the finite element method, high-pier elastic stabilization in the course of the construction of a continuous frame bridge was analyzed,and the buckling modal, the eigenvalue and the critical load were obtained. Comparing the results of the two methods mentioned above, recommendations of the high-pier buckling safety factor of continuous frame bridge were presented. |
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| Keywords: | continuous frame bridge high pier construction procedure elastic stability analysis |
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