| 高塔型矮塔斜拉桥初探 |
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| 引用本文： | 袁钰,吴京. 高塔型矮塔斜拉桥初探[J]. 公路, 2008, 0(1): 74-78 |
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| 作者姓名： | 袁钰 吴京 |
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| 作者单位： | 东南大学土木工程学院,南京市,210096;东南大学土木工程学院,南京市,210096 |
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| 摘 要： | 高塔型矮塔斜拉桥不仅保留了矮塔斜拉桥斜拉索的高利用率,同时由于斜拉索水平倾角的增加,提高了斜拉索的竖向荷载分担率。通过模型对索塔高度、索塔刚度和主梁刚度等参数进行了分析,并对高塔型矮塔斜拉桥的界定进行了讨论,最后展望了其发展前景。
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| 关 键 词： | 矮塔斜拉桥 高塔 荷载效应 应力幅 |
| 文章编号： | 0451-0712（2008）01-0074-05 |
| 收稿时间： | 2007-08-01 |
| 修稿时间： | 2007-08-01 |
Primary Research on Extradosed Bridge with Higher Towers |
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| YUAN Yu,WU Jing. Primary Research on Extradosed Bridge with Higher Towers[J]. Highway, 2008, 0(1): 74-78 |
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| Authors: | YUAN Yu WU Jing |
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| Abstract: | Extradosed bridge with higher towers has not only better efficiency in use of stay cables,but also better vertical load sharing rate,owing to the increasing of horizontal inclination angle.The influence of some main structural parameters such as height of towers,the bending stiffness of towers,the bending stiffness of main beam is researched.Then distinguish between cable-stayed and extradosed bridges is discovered,and the future trend of the development of the bridge is prospected as well. |
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| Keywords: | extradosed bridge high tower load effect stress amplitude |
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