| 刚架式系杆拱桥施工过程结构稳定性分析 |
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| 引用本文： | 刘钊,李丰群,施大震. 刚架式系杆拱桥施工过程结构稳定性分析[J]. 中国市政工程, 2004, 0(1): 16-18 |
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| 作者姓名： | 刘钊 李丰群 施大震 |
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| 作者单位： | 1. 东南大学土木工程学院,南京,30096
2. 中铁四局设计研究院,合肥,230023 |
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| 基金项目： | 江苏省自然科学基金(BK2002061)，同时受到中铁四局兰州雁盐黄河桥项目资金支持。 |
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| 摘 要： | 刚架式系杆拱桥在施工过程中要经历多次拼装和张拉。因此,施工过程中的结构稳定性常常控制设计。结合工程,对大跨度钢管混凝土系杆拱桥在施工过程中的稳定性进行有限元分析,探讨拱肋横撑等因素对侧向稳定模态和稳定因子的影响。对桥梁施工过程中的稳定性进行评价,并提出增强结构稳定性的措施。
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| 关 键 词： | 桥梁工程 系杆拱桥 施工 屈曲稳定 有限元分析 |
Analysis of Structural Stability for Rigid Frame Tied-Arch Bridge in Construction |
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| Liu Zhao Li Fengqun Shi Dazhen. Analysis of Structural Stability for Rigid Frame Tied-Arch Bridge in Construction[J]. China Municipal Engineering, 2004, 0(1): 16-18 |
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| Authors: | Liu Zhao Li Fengqun Shi Dazhen |
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| Affiliation: | Liu Zhao* Li Fengqun* Shi Dazhen* * |
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| Abstract: | As the rigid frame tied-arch bridge would be assembled and tensioned for multiple times in the construction, and the design often depends on structural stability during the construction course. Introduced hereby are the finite element analysis on stability of large span steel tube reinforced concrete tied-arch bridge in the construction, the discussion on impacts on lateral stability modalities and stability factors exerted by factors such as lateral brace of arch rib etc. Besides, the evaluation on bridge stability in the construction and the measures to strengthen the structural stability are also described here. |
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| Keywords: | bridge engineering tied-arch bridge construction buckling stability finite element analysis |
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