【作者】 张晋； 高森； 蔡建国； 宗钟凌；

【Author】 Zhang Jin;Gao Sen;Cai Jianguo;Zong Zhongling;Key Lab.of Concrete and Prestressed Concrete Structures of China Ministry of Education,Southeast Univ.;School of Civil Eng.,Huaihai Inst.of Technol.;

【机构】 东南大学混凝土及预应力混凝土结构教育部重点实验室； 淮海工学院土木工程学院；

【摘要】 从木结构材质状况、结构动力特性和小波包信号处理等方面,全面地总结了现有木结构状态评估方法及最新研究进展。介绍了应力波、超声波以及阻抗仪等木结构材质状况无损检测方法的基本原理、特点以及实际应用现状;对基于结构动力特性的损伤识别方法做了重点阐述,从基本理论原理出发并结合实际工程应用分析了各种方法的优点和不足之处;将小波包信号处理手段在木结构状态评估的应用作了重点剖析,阐述了其评估原理以及介绍了在实际工程中的应用。最后对木结构状态评估方法发展趋势进行了展望,指明今后的研究方向。更多还原

【Abstract】 From aspects of wood material condition,structure dynamic response and wavelet packet signal processing,the existing methods and latest research progress for condition assessment of timber structure were summarized. The basic principle,characteristics and practical application of stress wave,ultrasonic and impedance instrument wood material conditions nondestructive testing methods were introduced. Then the damage identification methods based on dynamic response were emphasized and analyzed the advantages and disadvantages according to the basic principle and practical engineering applications. The application of wavelet packet signal processing methods in wood structure condition assessment were emphasized,the evaluation principle were analyzed and application in practical engineering were introduced. Finally,the development trend of timber structure condition assessment methods were discussed.更多还原