| 悬索桥抖振分析中计入背景分量的实用方法 |
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| 引用本文： | 顾明,陈甦人,项海帆. 悬索桥抖振分析中计入背景分量的实用方法[J]. 土木工程学报, 1997, 0(6) |
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| 作者姓名： | 顾明 陈甦人 项海帆 |
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| 作者单位： | 同济大学(顾明，陈甦人)，同济大学(项海帆) |
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| 基金项目： | 国家杰出青年科学基金，上海市“优秀学科带头人计划”联合资助项目 |
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| 摘 要： | Scanlan方法是目前大跨桥梁抖振分析的常用方法.从应用角度出发,该方法计算抖振时仅计入了抖振的共振分量,而忽略了其背景分量.作者在对多座斜拉桥、悬索桥分析的基础上,认为对于日趋轻柔的大跨桥梁而言,考虑背景分量是必要的.本文着重对悬索桥的抖振背景分量情况作一分析,并提出了一种计入背景分量的抖振计算实用方法.
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| 关 键 词： | 悬索桥 抖振 背景分量 实用方法 |
A PRACTICAL METHOD FOR CALCULATING THE BUFFETING RESPONSE INCLUDING THE BACKGROUND PART OF SUSPENSIONBRIDGES |
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| Gu Ming Chen Suren Xiang Haifan. A PRACTICAL METHOD FOR CALCULATING THE BUFFETING RESPONSE INCLUDING THE BACKGROUND PART OF SUSPENSIONBRIDGES[J]. China Civil Engineering Journal, 1997, 0(6) |
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| Authors: | Gu Ming Chen Suren Xiang Haifan |
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| Affiliation: | Tongji University |
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| Abstract: | In the Scanlan Method or buffeting response spectrum method, which is commonly used to analyze the buffeting response of long-span bridges, theresonant part of the response is calculated "while the background part is omitted. The newest research indicates that the background part may be important in many cases, and it is necessary to analyze the response including the background part. In this paper, a formula which can improve the results from the methods mentioned above is proposed. By using the formula, the buffeting response including the resonant part and the background part can be calculated in a convenient way. |
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| Keywords: | suspension bridge buffeting background part practical method. |
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