Fast practical evaluation of soil–structure interaction of embedded structures

✍ Scribed by Izuru Takewaki; Noriko Takeda; Koji Uetani

• Book ID: 104322546
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 282 KB
• Volume: 23
• Category: Article
• ISSN: 0267-7261
• DOI: 10.1016/s0267-7261(02)00225-7

✦ Synopsis

A simple and fast evaluation method of soil -structure interaction (SSI) effects of embedded structures is presented via a cone model. The impedances and the effective input motions at the bottom of an embedded foundation are evaluated by means of the cone model. Those quantities are transformed exactly to the corresponding values at the top of the foundation. The evaluated quantities are combined with the super-structure at the top of the foundation. The transfer function amplitude of the interstory drift of a single-degree-of-freedom superstructure is computed for various cases, i.e. no SSI, SSI without embedment, SSI with shallow embedment, SSI with deep embedment. Soil properties are also varied to investigate in more detail the SSI effects of embedded structures. It is found that, while the transfer function amplitude is reduced by the increase of embedment in general, the characteristics of the transfer function amplitude for a very small ground shear wave velocity and large embedment are irregular and complicated.