| 多维地震激励作用下大跨度钢管混凝土提篮拱桥的随机响应 |
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| 引用本文： | 赵灿晖,周志祥.多维地震激励作用下大跨度钢管混凝土提篮拱桥的随机响应[J].地震工程与工程振动,2005,25(3):87-92. |
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| 作者姓名： | 赵灿晖 周志祥 |
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| 作者单位： | 1. 西南交通大学,土木学院,四川,成都,610031
2. 重庆交通学院,重庆,400074 |
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| 基金项目： | 国家重大基础研究前期项目(2003CCA01500) |
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| 摘 要： | 以某大跨度钢管混凝土提篮拱桥为例，分别研究了大跨度钢管混凝土提篮拱桥的自振特性及其在纵向激励、纵 竖向激励、纵 横向激励、纵 竖 横向激励作用下的地震响应特性。结果表明，横向激励对提篮拱桥地震响应特性有较大影响，对于多维激励情况，提篮拱桥的抗震性能并不优于平行拱，并进一步分析了原因。
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| 关 键 词： | 拱桥 地震响应 随机振动 多维激励 |
| 文章编号： | 1000-1301(2005)03-0087-06 |
Stochastic response of a long-span x-type concrete filled-in steel tube arch bridge to multi-component seismic excitation |
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| Zhao Canhui,Zhou Zhixiang.Stochastic response of a long-span x-type concrete filled-in steel tube arch bridge to multi-component seismic excitation[J].Earthquake Engineering and Engineering Vibration,2005,25(3):87-92. |
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| Authors: | Zhao Canhui Zhou Zhixiang |
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| Abstract: | Taking a long-span X-type concrete filled-in steel tube arch bridge as an example, the free vibration and response behavior of such bridge subjected to longitudinal excitation, longitudinal and vertical excitation, longitudinal and transverse excitation, three-dimensional excitation are studied. The calculation results show that transverse excitation seriously affects the internal force response of such bridge, and its seismic performance in the case of multi-component excitation is not better than that of parallel ribbon arch bridge, and the reason is analysed. |
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| Keywords: | arch bridge seismic response stochastic vibration mutil-component excitation |
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