用Love面波特性计算动力响应的进一步探讨  

Calculating Dynamic Response of Soils by Using Love Wave Characteristics

作　　者：夏唐代[1] 张忠苗[1] 吴世明[1] 

机构地区：[1]浙江大学土木工程系

出　　处：《振动工程学报》1996年第3期281-285,共5页Journal of Vibration Engineering

摘　　要：根据上软下硬地基中Ｌｏｖｅ面波的能流分布规律，提出了利用Ｌｏｖｅ面波的第一模态波模拟水平方向传播波，而竖直方向传播波则采用半无限单元来模拟。通过算例来验证本文方法的可靠性和精确性，并讨论了传统的传递边界法的可靠性，对这两种方法进行了比较。最后讨论了衰减系数φ对计算结果的灵敏性。Based on the energy distribution law of Love surface wave in soils,the horizontal propagation wave in soils whose shear wave velocity increases with depth is simulated by using the first mode wave of Love surface wave and the vertical propagation wave is simulated by using semi infinite elements in this paper.The reliability and accuracy of the presented method and the traditional methods are also discussed in this paper.The sensitivity of coefficient φ to results calculated by using the presented method is discussed.

关 键 词：Love面波 弥散特性 动力响应 地基 

分 类 号：TU470.1[建筑科学—结构工程]