| 钢管混凝土框架结构模型模态识别比较研究 |
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| 引用本文： | 杜国锋,许成祥,凡红.钢管混凝土框架结构模型模态识别比较研究[J].兰州理工大学学报,2007,33(2):130-133. |
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| 作者姓名： | 杜国锋 许成祥 凡红 |
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| 作者单位： | 1. 长江大学城市建设学院,湖北,荆州,434023
2. 武汉大学,土木建筑工程学院,湖北,武汉,430072 |
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| 摘 要： | 基于大型有限元软件ANSYS8.1对钢管混凝土框架结构模型进行计算模态分析,同时采用单输入输出法(SISO)和环境激励法对该框架模型进行试验模态分析.简述了计算和试验过程,并对三种方法下的模态识别结果进行了比较分析.结果表明,三种方法均可用于钢管混凝土框架结构模型模态分析,并能较好地得到结构固有频率.
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| 关 键 词： | 钢管混凝土 模态 环境激励 |
| 文章编号： | 1673-5196（2007）02-0130-04 |
| 收稿时间： | 2006-05-17 |
| 修稿时间： | 2006年5月17日 |
Comparative study of modal identification of concrete-filled steel tubular frame structure |
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| DU Guo-feng,XU Cheng-xiang,FAN Hong.Comparative study of modal identification of concrete-filled steel tubular frame structure[J].Journal of Lanzhou University of Technology,2007,33(2):130-133. |
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| Authors: | DU Guo-feng XU Cheng-xiang FAN Hong |
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| Abstract: | Modal identification research of concretefilled steel tubular frame was conducted by using the large-scale structural analysis software ANSYS8.1,and the modal experiment was also carried out by means of single-point input/output and ambient excitation.The process of model calculation and experiment was described briefly and the data obtained from these three methods were compared with each other,also.The result showed that the three methods could be used in the modal analysis of the above-mentioned structure,and its natural frequency could well be obtained. |
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| Keywords: | concrete-filled steel tube modality ambient excitation |
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