| 高架桥弯梁抗扭稳定性分析 |
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| 引用本文： | 丁汉山, 刘华, 胡丰玲, 王新定, 周游, 张谊. 高架桥弯梁抗扭稳定性分析[J]. 交通运输工程学报, 2004, 4(3): 44-48. |
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| 作者姓名： | 丁汉山 刘华 胡丰玲 王新定 周游 张谊 |
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| 作者单位： | 东南大学,土木学院,江苏,南京,210096;东南大学,交通学院,江苏,南京,210096;江苏省淮安市水利局,江苏,淮安,223200 |
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| 摘 要： | 依据淮河入海水道高架桥工程, 采用空间有限元数值方法, 构建了全桥的空间仿真模型, 分析了多跨独柱墩弯梁桥的抗扭稳定性。考虑了引起弯梁抗扭稳定性的主要影响因素, 如弯梁恒载、温度效应、车辆的偏心行驶等, 并分析了这些因素组合时对弯梁的影响。结果表明, 弯梁桥的抗扭稳定性主要表现在弯梁的扭转变形和支座的支反力上, 特别是要设计合理的支承方式, 避免支座出现脱空现象。
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| 关 键 词： | 桥梁工程 弯梁桥 独柱墩 抗扭稳定性 |
| 文章编号： | 1671-1637(2004)03-0044-05 |
| 收稿时间： | 2003-12-20 |
| 修稿时间： | 2003-12-20 |
Overturning stability analysis of curved box girder bridge |
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| DING Han-shan, LIU Hua, HU Feng-ling, WANG Xin-ding, ZHOU You, ZHANG Yi. Overturning stability analysis of curved box girder bridge[J]. Journal of Traffic and Transportation Engineering, 2004, 4(3): 44-48. |
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| Authors: | DING Han-shan LIU Hua HU Feng-ling WANG Xin-ding ZHOU You ZHANG Yi |
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| Affiliation: | 1. School of Civil Engineering, Southeast University, Nanjing 210096, China;;2. School of Transportation, Southeast University, Nanjing 210096, China;;3. Huai'an Water Conservancy Bureau, Huai'an 223200, China |
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| Abstract: | Overturning stability analysis of curved box girder bridge in Huaiyang highway interchange over the Huaihe to sea waterway was introduced. The major factors, which would cause bridge overturning, were analyzed by the finite element method, and preventive measures were advanced in bridge design. Analysis results show that the overturning stability of curved box girder bridge is mainly behaved in the torsional distortion and the bearing reaction, the supporting fashion must be designed to avoid negative vertical reaction of bearings. 4 tabs, 7 figs, 6 refs. |
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| Keywords: | bridge engineering curved box girder bridge single column pier overturning stability |
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