| 双肋斜拉拱桥横向稳定性的实用计算 |
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| 引用本文： | 陆伟,罗世东. 双肋斜拉拱桥横向稳定性的实用计算[J]. 铁道学报, 2011, 0(12): 88-92 |
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| 作者姓名： | 陆伟 罗世东 |
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| 作者单位： | 武汉市政工程设计研究院有限责任公司;中铁第四勘察设计院集团有限公司; |
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| 摘 要： | 斜拉拱桥是一种将斜拉桥和拱桥相结合的新型桥梁结构形式,索拱共同受力使得拱的稳定性区别于一般拱桥。本文基于能量原理,在综合考虑桥面刚度、吊杆非保向力、斜拉索非保向力的前提下,推导双肋斜拉拱横向失稳临界荷载的实用计算方法,并通过算例验证实用计算方法的正确性,借助实用方法分析斜拉索参数:斜拉索预张拉力、斜拉索倾角、在拱上布索范围、主塔与拱的距离等对双肋斜拉拱横向失稳临界荷载的影响。
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| 关 键 词： | 斜拉拱桥 横向稳定性 能量原理 |
Practical Calculation of the Lateral Destabilization of Double Rib Cable-stayed Arch Bridge |
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| LU Wei,LUO Shi-dong. Practical Calculation of the Lateral Destabilization of Double Rib Cable-stayed Arch Bridge[J]. Journal of the China railway Society, 2011, 0(12): 88-92 |
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| Authors: | LU Wei LUO Shi-dong |
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| Affiliation: | LU Wei1,LUO Shi-dong2 (1.Wuhan Municipal Engineering Design & Research Institute Co.,Ltd,Wuhan 430015,China,2.China Railway Siyuan Survey and Design Group Co.,Wuhan 430063,China) |
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| Abstract: | The cable-stayed arch bridge is a new form of bridge structure,which combines characteristis of the cable-stayed bridge and the arch bridge.The stability of arch is different from the normal arch bridge because the cable shares the load with the arch rib.On the basis of the energy principle,the text deduces a practical method for calculation of the lateral destabilization critical loading of the double rib cable-stayed arch under the premise of considering the factors of the stiffness of bridge floor and no... |
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| Keywords: | the cable-stayed arch bridge lateral stability energy principle |
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