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| 尼尔森体系系杆拱桥稳定性分析 |
| Stability analysis of Arch Bridge of Nielsen System |
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| DOI：10.3969/j.issn.1671-5322.2010.04.017 |
| 中文关键词: 尼尔森体系 稳定性 失稳模态 模型 |
| 英文关键词: Nielsen style stability model |
| 基金项目: |
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| 中文摘要: |
| 尼尔森体系拱桥本身结构复杂,影响其稳定性的因素很多.通过建立空间有限元模型,对影响该体系稳定性的因素做了分析对比,给出各构件对稳定性的影响,总结得出一般性的结论,为该体系桥梁提供结构设计和稳定性分析依据. |
| 英文摘要: |
| Arched bridge of Nielsen system structure is very complicated,and a lot of factors affect its stability.This paper makes the contrast and analyzes the factor affecting the system’s stability by establishing dimensional element models,summarize the general conclusion,then offer the basis for construction design and stability analyze. |
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