| 斜拉桥一致激励和多点激励下的地震反应分析 |
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| 引用本文： | 徐凯燕,魏德敏,刘灿.斜拉桥一致激励和多点激励下的地震反应分析[J].科学技术与工程,2007,7(10):2288-2291. |
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| 作者姓名： | 徐凯燕 魏德敏 刘灿 |
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| 作者单位： | 华南理工大学建筑学院,广州,510640 |
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| 摘 要： | 讨论了斜拉桥的地震动力分析方法,包括三维斜拉桥线性地震分析的多点激励地震输入问题。对两典型跨径斜拉桥进行了一致激励和多点激励情况的比较分析。结果表明:多点激励对于长大跨径斜拉桥地震响应有很大影响,在进行地震响应分析必须予以考虑。
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| 关 键 词： | 地震反应分析 斜拉桥 一致激励 多点激励 |
| 文章编号： | 1671-1819(2007)10-2288-04 |
| 收稿时间： | 2006-10-13 |
| 修稿时间： | 2006年10月13 |
Earthquake-response Analysis of Cable-stayed Bridges under Uniform and Multiple-support Excitations |
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| XU Kai-yan,WEI De-min,LIU Can.Earthquake-response Analysis of Cable-stayed Bridges under Uniform and Multiple-support Excitations[J].Science Technology and Engineering,2007,7(10):2288-2291. |
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| Authors: | XU Kai-yan WEI De-min LIU Can |
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| Abstract: | The dynamic time-history analysis methodology is discussed, including the multiple-support seismic input problem for the three-dimensional linear earthquake-response analysis of cable-stayed bridges. And a comparative study is made between the response of the models under uniform earthquake and their response to multiple-support excitations. Analysis results show that multiple-support seismic excitations can have a significant effect and should be considered in the earthquake-response analysis of such long and complex three-dimensional structures. |
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| Keywords: | earthquake-response analysis cable-stayed bridges uniform excitation multiple-support excitation |
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