| 大跨度斜拉桥拉索分段模拟对动力特性的影响 |
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| 引用本文： | 马如进,陈艾荣,刘志文.大跨度斜拉桥拉索分段模拟对动力特性的影响[J].同济大学学报(自然科学版),2005,33(5):580-584. |
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| 作者姓名： | 马如进 陈艾荣 刘志文 |
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| 作者单位： | 同济大学,桥梁工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金重大资助项目(50478109)，高等学校博士学科点专项科研基金资助项目(20040247026) |
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| 摘 要： | 为反映斜拉桥拉索本身和桥梁的相互耦合的动力特性,将单根拉索用多根索单元分段精细模拟,考虑拉索本身振动对传统的单梁式斜拉桥的整体动力特性计算结果的影响,同时还提出一个考虑拉索分段但忽略拉索本身振动的分析模型,并对三种模型的分析结果进行了比较,最后用一个风洞试验的气弹模型对动力特性进行了校核.
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| 关 键 词： | 斜拉桥 动力特性 多段拉索模型 多段无质量拉索模型 |
| 文章编号： | 0253-374X(2005)05-0580-05 |
Influence on Dynamic Characteristics of Super Long Span Cable-Stayed Bridges Considering Multi-element Cable Systems |
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| MA Ru-jin,CHEN Ai-rong,LIU Zhi-wen.Influence on Dynamic Characteristics of Super Long Span Cable-Stayed Bridges Considering Multi-element Cable Systems[J].Journal of Tongji University(Natural Science),2005,33(5):580-584. |
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| Authors: | MA Ru-jin CHEN Ai-rong LIU Zhi-wen |
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| Abstract: | In order to consider the coupling effects of dynamic characteristics between decks and cables, cables are simulated as multi-element systems in this paper. The dynamic characteristics of cables are considered during the dynamic characteristics analysis of the whole bridge. Meanwhile, a new model considering multi-element cable without mass property is proposed. The results from three different models are compared. At the end, an aeroelastic model is made to check the results of different models. |
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| Keywords: | cable-stayed bridge dynamic characteristics multi-element cable model multi-element without mass cable model |
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