基于小波包能量谱天水古民居木结构的损伤识别

Damage Identification of Ancient Wood Structure in Tianshui based on Wavelet Packet Energy Spectrum

对地面交通下北宅子中院主厅楼木结构提出小波包能量变化率损伤识别指标。研究表明:该指标对于北宅子中院主厅楼木结构的损伤比较敏感,可准确地判定结构损伤出现的位置,指标值随着损伤程度的增大而增大,研究成果为交通激励下古建筑木结构的损伤识别奠定理论基础。

The damage identification index of wavelet packet energy rate was proposed for the main hall wood structure of north house under ground transportation incentive.The results show that the index is more sensitive to the main hall wood structural damage and accurately determine the structural damage location,and the damage degree is greater,the index is greater.So it provides theory basis for damage identification of ancient wood structures under transportation excitation.