| 一种改进的基于频率测量的结构损伤识别方法 |
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| 引用本文： | 谢峻,韩大建.一种改进的基于频率测量的结构损伤识别方法[J].工程力学,2004,21(1):21-25. |
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| 作者姓名： | 谢峻 韩大建 |
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| 作者单位： | 华南理工大学建筑学院土木工程系,广东,广州,510641;华南理工大学建筑学院土木工程系,广东,广州,510641 |
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| 基金项目： | 广东省自然科学基金资助项目(000387) |
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| 摘 要： | 基于频率测量的结构损伤识别方法具有测试简便,精度较好的优点。在分析结构固有频率用于结构损伤识别的机理的基础上,对一种较好的基于频率的结构损伤识别方法进行了综合评述,并对针对其不足进行了改进。钢筋混凝土三跨连续梁的数值模拟计算表明,中低损伤度的识别结果令人满意。经过改进的方法计算简单,综合识别能力较强,便于工程应用。
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| 关 键 词： | 土木建筑结构 健康监测 损伤识别 频率 |
| 文章编号： | 1000-4750(2004)01-0021-05 |
AN IMPROVED METHOD FOR STRUCTURE DAMAGE DETECTION BASED ON FREQUENCY MEASUREMENT |
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| XIE Jun,HAN Da-jian.AN IMPROVED METHOD FOR STRUCTURE DAMAGE DETECTION BASED ON FREQUENCY MEASUREMENT[J].Engineering Mechanics,2004,21(1):21-25. |
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| Authors: | XIE Jun HAN Da-jian |
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| Abstract: | Structure Damage Detection Method (SDDM) based on frequency measurement exhibits a feature that natural frequencies of a structure can be measured conveniently with relatively high precision. Some improvements to the SDDM proposed by Stubbs are presented. Simulation analysis for a 3-span continuous RC beam is given. For slight and moderate damage detection, the results are satisfactory. It is shown that the proposed algorithm has the advantages of computational simplicity and better identification capacity. Therefore, it is convenient for engineering practice. |
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| Keywords: | building structure health monitoring damage detection frequency |
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