| 郑州黄河大桥主桥自振特性分析 |
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| 引用本文： | 孙增寿,孙征,陈淮. 郑州黄河大桥主桥自振特性分析[J]. 世界地震工程, 2003, 19(3): 129-133 |
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| 作者姓名： | 孙增寿 孙征 陈淮 |
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| 作者单位： | 郑州大学,土木工程学院,河南,郑州,450002 |
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| 基金项目： | 河南省自然科学基金资助项目 |
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| 摘 要： | 以京珠高速公路郑州黄河大桥主桥为研究对象，采用ANSYS有限元程序，建立了下承式钢管混凝土系杆拱桥的空间力学计算模型，利用子空间迭代法计算了该桥梁结构的自振周期和振型，对桥梁的模态特性进行了分析，计算结果可为该桥的设计、施工以及使用阶段的健康检测和维护提供技术参数和依据。
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| 关 键 词： | 公路桥 郑州黄河大桥 下承式钢管混凝土拱桥 有限元法 自振周期 振型 自振特性 |
| 文章编号： | 1007-6069(2003)03-0129-05 |
| 修稿时间： | 2003-03-18 |
Dynamic analysis of the Yellow River main bridge in Zhengzhou |
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| SUN Zeng-shou,SUN Zheng,CHEN Huai. Dynamic analysis of the Yellow River main bridge in Zhengzhou[J]. World Information On Earthquake Engineering, 2003, 19(3): 129-133 |
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| Authors: | SUN Zeng-shou SUN Zheng CHEN Huai |
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| Abstract: | In this paper dynamic behaviour of the Yellow River main bridge in Zhengzhou section of Jingzhu expressway is studied. The finite element analysis software ANSYS is adopted to set up a three-dimensional finite element model of a CFT arch bridge of the main bridge. The natural periods and modes of the CFT arch bridge are calculated by using the subspace iteration method. Meanwhile its modal characteristics are analyzed. The calculating results can offer the related technical parameters and basic data for the design certification, construction, health detection and maintenance in working conditions. |
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| Keywords: | through concrete-filled steel-tabular arch bridge finite element method natural period mode |
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