摘要
介绍了识别结构缺陷和结构模态参数的工程与环境物探方法,使用地质雷达对高速公路路面结构的质量进行现场检测,获得了满意的结果。利用地表常时微动和正常风荷载组合作为高层建筑的随机环境激励,对高层建筑的低阶模态参数识别明显。其它研究资料表明,环境激励用于桥梁结构的模态识别也十分成功。
The geophysical exploration of engineering and surroundings for identifying defects of structure and model parameters is introduced. The satisfaction results for the field inspection of the surface structure of expressway are obtained by using ground penetration radar. Taking the frequent micro-moving of the ground surface and the normal combination of wind loads as the random ambient excitation of tall building, the identification of the low-grade model parameters for tall building is obvious. The other study shows that the ambient excitation used in the model identification for bridge structure is also successful.
出处
《工程勘察》
CSCD
北大核心
2006年第6期72-75,共4页
Geotechnical Investigation & Surveying
关键词
模态识别
结构缺陷
地质雷达
环境激励
高速公路
高层建筑
桥梁结构
model identification
structure defect
ground penetration radar
ambient excitation
expressway
tall building
bridge structure
