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| 基于小波空间技术的大跨空间钢结构损伤定位 | |
| 引用本文： | 薛祥,李伟强,杨雅平,黄国勇.基于小波空间技术的大跨空间钢结构损伤定位[J].钢结构,2007,22(8):1-4. |
| 作者姓名： | 薛祥 李伟强 杨雅平 黄国勇 |
| 作者单位： | 1. 北京市勘察设计研究院,北京,100038 2. 北京工业大学,建筑工程学院,北京,100022 3. 北京公科固桥技术有限公司,北京,100088 |
| 摘 要： | 钢结构不可避免发生的缺陷、损伤和老化及施工中产生的工程事故都要求对损伤进行定位、定量的检测.小波空间分析技术的频域--空间域局部特性为大跨空间钢结构损伤定位提供了新的思路和方法.在环境荷载作用下,弦支穹顶结构仿真模型试验结果证实了该方法的准确性和可靠性,表明了该方法的简易性和实用性. |
| 关 键 词： | 损伤检测 大跨钢结构 小波空间变换 弦支穹顶 |
| 修稿时间： | 2006-12-11 |
DAMAGE SITES DETECTION OF LONG SPAN SPATIAL STEEL STRUCTURES BASED ON SPATIAL WAVELET TECHNIQUE |
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| Xue Xiang,Li Weiqiang,Yang Yaping,Huang Guoyong.DAMAGE SITES DETECTION OF LONG SPAN SPATIAL STEEL STRUCTURES BASED ON SPATIAL WAVELET TECHNIQUE[J].Steel Construction,2007,22(8):1-4. | |
| Authors: | Xue Xiang Li Weiqiang Yang Yaping Huang Guoyong |
| Affiliation: | 1 Beijing Geotechnical Institute Beijing 100038; 2 Faculty of Architectural Engineering, Beijing University of Technology Beijing 100022; 3 Beijing Gongke Bridge Technology Co. ,Ltd. Beijing 100088 |
| Abstract: | The inevitable joint limitation, damage, aging of steel structures and more and more engineering accidents under construction all need detecting and diagnosing the structure health and damage status. The spatial wavelet technique is a mathematical tool that has a spatial local advantage at the spatial-frequency areas in analyzing spatial distributing signals. It is a new idea and method for long span steel structures damage detection. In the simulation study, the results of the proposed method show that spatial wavelet analysis is capable to extract damage sites from the response signal of suspendome with assumed damage at ambient dynamic loads in a robust and reliable way. At the same time, it is a simple and practical way. |
| Keywords: | damage detection long span spatial steel structures spatial wavelet transform suspendome |
| 本文献已被 维普 万方数据 等数据库收录！ | |
