| 大跨径桥梁自振特性试验的环境随机激振法 |
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| 引用本文： | 唐怀平,王凤勤.大跨径桥梁自振特性试验的环境随机激振法[J].西南交通大学学报,2000,35(2):126-128. |
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| 作者姓名： | 唐怀平 王凤勤 |
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| 作者单位： | 西南交通大学应用力学与工程系,四川,成都,610031 |
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| 摘 要： | 采用快速可靠的环境随机振动激振法，基于结构止各测点的脉动时域应信号，应用ＩＴＤ时域模态参数识别理论，分析大路径桥梁实桥的结构固有模态并列举了工程应用实例。
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| 关 键 词： | 大跨径桥梁 环境随机激励 自振特性试验 |
Self-Vibration Characteristic Test of Long-Span Bridges by Means of Environment Random Excitation |
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| TANG Huai-ping,WANG Feng-qin.Self-Vibration Characteristic Test of Long-Span Bridges by Means of Environment Random Excitation[J].Journal of Southwest Jiaotong University,2000,35(2):126-128. |
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| Authors: | TANG Huai-ping WANG Feng-qin |
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| Abstract: | Structural self vibration characteristic test is one of the most important contents of long span bridge quality evaluation. In this paper, a quick and reliable method of environment random excitation is proposed for self vibration characteristic test. Based on the theory of IDT modal parameter identification in time domain, and using the impulse response signals acquired from each structural measuring point, the method is used to analyze the self characteristics of a long span bridge. |
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| Keywords: | modal analysis parameter identification long span bridge environment random excitation |
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