| 小宽跨比大跨径拱的优化造型 |
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| 引用本文： | 孙敏,顾学辉. 小宽跨比大跨径拱的优化造型[J]. 苏州科技学院学报(工程技术版), 2006, 19(1): 33-36 |
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| 作者姓名： | 孙敏 顾学辉 |
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| 作者单位： | 1. 苏州科技学院,土木工程系,江苏,苏州,215011
2. 黔东南州建设工程监理公司,贵州,凯里,556000 |
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| 摘 要： | 拱的跨越潜能很大,是大跨结构的发展方向之一。但由于拱体的横向尺寸总是有限的,往往使得大跨径拱桥的宽跨比很小。小宽跨比大跨径拱桥的侧向稳定性较差,而合理的造型可大大提高和改善其侧向工作能力。文章在力学分析的基础上,提出X形变宽拱系,并给出相应的优化指标。
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| 关 键 词： | 小宽跨比 大跨径拱桥 侧向稳定性 X形变宽拱 |
| 文章编号： | 1672-0679(2006)01-0033-03 |
| 修稿时间： | 2005-06-29 |
The Optimization of Arch Shape with the Ratio of Short Width to Long Span |
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| SUN Min,GU Xue-hui. The Optimization of Arch Shape with the Ratio of Short Width to Long Span[J]. Journal of University of Science and Technology of Suzhou:Engineering and Technology, 2006, 19(1): 33-36 |
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| Authors: | SUN Min GU Xue-hui |
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| Abstract: | An arch shape can span a large distance and is therefore one of suitable styles for the long-span structure.However,the width of an arch has a limitation which leads to the long span arch's lateral stability lower because of its small ratio of width and span.The optimal form of this kind of arch(X-arch-system) is provided on the base of mechanics analysis. |
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| Keywords: | small ratio of width and span long span arch lateral stability X-arch-system |
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