摘要
运用弹性薄板振动理论,根据混凝土路面的破坏情况, 分别对四边简支、对边简支对边固定、四边固定板的振动基频进行了计算分析,结合工程实测振动频谱特征,得出了脱空路面板的振动基频值一般在 50 Hz 以下,为工程中判定路面板的脱空与否提供了依据.
Usingthetheoryoftheelasticslabvibration, accordingtothedestructedconditionoftheslab, theboundary of which is divided simple supported, boundary fixed, and subtense simple supported and subtense fixed, the vibrate characteristic of the suspending cement concrete pavement slab is calculated and analyzed. Based on the vibrate spec- trum curve, natural vibration frequency of the suspending slab is commonly less than fifty, that provide the standard to detect the cavity beneath the slab in the engineering by the method of vibration signal.
出处
《河北工业大学学报》
CAS
2004年第4期97-100,共4页
Journal of Hebei University of Technology
关键词
脱空
振动模型
振动基频
频谱特征
cavity beneath slab
vibrate model
natural vibration frequency
spectrum characteristic
