| 空间主缆悬索桥非线性静风稳定分析 |
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| 引用本文： | 欧阳克俭,陈政清,李红利,韩艳.空间主缆悬索桥非线性静风稳定分析[J].土木与环境工程学报,2010,32(3):83-87. |
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| 作者姓名： | 欧阳克俭 陈政清 李红利 韩艳 |
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| 作者单位： | 1. 湖南大学,风工程试验研究中心,长沙,410082
2. 湖南大学,风工程试验研究中心,长沙,410082;长沙理工大学,土木与建筑学院,长沙,410076 |
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| 基金项目： | 国家自然科学基金重点项目，湖南省研究生科研创新项目 |
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| 摘 要： | 通过五分量天平测试得到了右汉桥节段模型的三分力系数。借助大型有限元分析软件ANSYS，采用修正的增量与内外两重迭代的方法，对右汉空间主缆悬索桥进行了三维静风荷载数值计算。数值计算结果表明采用空间主缆的右汊悬索桥相对于平行双主缆的悬索桥具有更为优秀的静风稳定性能。设计并加工了缩尺比为1：90．35的右汊桥全桥气弹模型，均匀流中全桥气弹模型的静风稳定性试验结果表明，静风失稳临界风速明显高于设计风速。
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| 关 键 词： | 悬索桥 ANSYS 静风稳定 五分量天平 三分力系数 |
| 收稿时间： | 2009/11/27 0:00:00 |
Nonlinear Aerostatic Stability of Suspension Bridge with Spatial Main Cables |
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| OUYANG Ke jian,CHEN Zheng qing,LI Hong li and HAN Yan.Nonlinear Aerostatic Stability of Suspension Bridge with Spatial Main Cables[J].Journal of Civil and Environmental Engineering,2010,32(3):83-87. |
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| Authors: | OUYANG Ke jian CHEN Zheng qing LI Hong li and HAN Yan |
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| Affiliation: | 1. Wind Engineering Research Center, Hunan University, Changsha 410082, Hunan, P. R. China 2. School of Civil Engineering and Architecture, Changsha 410076, Hunan, P. R. China) |
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| Abstract: | The three-component coefficients of section model of You-Cha Bridge were obtained by using two five-component balances. And the three-dimensional aerostatic stability of You-Cha Bridge was analyzed based on the modified increment and inner-outer iteration method implemented in ANSYS. It is indicated that the aerostatic stability of You-Cha Bridge with spatial main cables is more excellent compared with those of suspension bridges which have two parallel main cables. A full nero-elastic model with geometrical scale of 1：90.35 was designed and used to experimentally determine the wind velocity inducing aerostatic divergence in smooth wind. And it is found that the critical wind velocity for attendant bridge is higher than the design wind velocity. |
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| Keywords: | ANSYS |
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