点击次数：

论文类型：期刊论文

发表时间：2015-03-01

发表刊物：SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

收录刊物：SCIE、EI

卷号：70

页面范围：48-59

ISSN号：0267-7261

关键字：Harmonic response; Soil-structure interaction; Isotropic soil; Anisotropic soil; Multilayered half-space

摘要：A general formulation and solution procedure are proposed for harmonic response of rigid foundation on multilayered half-space. It is suitable for isotropic as well as anisotropic soil medium. The wave motion equation is formulated in frequency wave-number domain in the state space. A hybrid approach is proposed for its solution, where the precise integration algorithm (PIA) is employed to carry out the integration. Very high accuracy can be achieved. The mixed variable form of wave motion equation enables the assembly of layers simple and convenient. The surface Green's function is regarded as rigorous, because it is free from approximations and discretization errors. The algorithm is unconditionally stable. The numerical implementation is based on algebraic matrix operation. Numerical examples of vibration of rigid foundation validate the efficiency and accuracy of the proposed approach. (C) 2014 Elsevier Ltd. All rights reserved.