| 大跨桥梁考虑地形及多点激励的地震响应分析 |
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| 引用本文： | 刘洪兵,范立础.大跨桥梁考虑地形及多点激励的地震响应分析[J].同济大学学报(自然科学版),2003,31(6):641-646. |
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| 作者姓名： | 刘洪兵 范立础 |
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| 作者单位： | 1. 同济大学,桥梁工程系,上海,200092;解放军理工大学,工程兵学院,江苏,南京,210007
2. 同济大学,桥梁工程系,上海,200092 |
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| 摘 要： | 提出了可以离线计算的三维相关系数谱的概念 ,导出基于三维相关系数谱的多点激励反应谱方法 ,并用此方法对地震波在局部场地下的地形效应以及大跨度桥梁在多点激励作用下的地震响应进行了分析 ,探讨了同时考虑两者对大跨度桥梁地震响应的影响
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| 关 键 词： | 地形效应 多点激励 相关系数谱 反应谱法 |
| 文章编号： | 0253-374X(2003)06-0641-06 |
| 修稿时间： | 2002年7月2日 |
Seismic Analysis of Long Span Bridges Considering Topographic Effects and Multi-supported Excitations |
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| LIU Hong bing ,FAN Li chu.Seismic Analysis of Long Span Bridges Considering Topographic Effects and Multi-supported Excitations[J].Journal of Tongji University(Natural Science),2003,31(6):641-646. |
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| Authors: | LIU Hong bing FAN Li chu |
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| Institution: | LIU Hong bing 1,2,FAN Li chu 1 |
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| Abstract: | The concept of 3 D spectrum of correlation coefficient,which can be computed in advance,is presented in this paper,and the multi supported response spectrum formula based on 3 D spectrum of correlation coefficient is then derived.The seismic analysis of a continuous rigid frame bridge considering the topographic effects and multi supported excitations is studied,and the influences of the two effects are discussed. |
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| Keywords: | topographic effects multi supported excitations spectrum of correlation coefficient response spectrum formula |
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