| 古代连拱石拱桥动力特性分析 |
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| 引用本文： | 李晓莹,杨雷.古代连拱石拱桥动力特性分析[J].中国电子商务,2009(12):105-106. |
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| 作者姓名： | 李晓莹 杨雷 |
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| 作者单位： | 1. 河北理工大交通与测绘学院,063009
2. 西南交通大学土木工程学院,610031 |
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| 摘 要： | 本文以古代桥梁七水滩桥为研究对象，采用MIDAS有限元程序，建立了连续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，对桥梁的动力特性进行了分析与研究，计算结果可为现代桥梁设计、施工以及使用阶段的健康检测和维护提供技术参考和依据。
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| 关 键 词： | 连拱石拱桥 有限元法 动力特性 振型 |
Dynamic analysis of Continuous Stone Arch Bridge in Ancient |
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| LI Xiaoying,YANG Lei.Dynamic analysis of Continuous Stone Arch Bridge in Ancient[J].Discovering Value,2009(12):105-106. |
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| Authors: | LI Xiaoying YANG Lei |
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| Institution: | 1. College of Transportation and Mapping, Hebei Polytechnic University, Hebei Tangshan 063009, China; 2. School of Civil Engineering, Southwest Jiaotong University ,Sichuan Chengdu 610031, China) |
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| Abstract: | In this paper dynamic behavior of the Qishuitan bridge is studied. The finite element analysis software MIDAS is adopted to set up a three - dimensional finite element model of a continuous stone arch bridge. The natural periods and modes of the continuous 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: | continuous stone arch bridge finite element method dynamic characteristics mode |
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