Horizontal impedance of square foundation in layered soil

✍ Scribed by S Ahmad; A.K Rupani

• Book ID: 104322731
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 511 KB
• Volume: 18
• Category: Article
• ISSN: 0267-7261
• DOI: 10.1016/s0267-7261(98)00028-1

✦ Synopsis

This paper presents an extensive investigation into the influence of key mechanical and geometrical parameters on horizontal impedance of square foundations resting on or embedded in a two-layer soil deposit. The parameters investigated are the ratio of shear-wave velocities, the thickness of the top layer, the depth of embedment and the degree of contact between the footing-sidewall with backfill-soil. The results are presented in the form of simple and versatile dimensionless graphs, which should prove to be useful in understanding the steady-state harmonic response of square foundations in layered soils due to horizontal excitation. The investigation was conducted using a rigorous boundary element algorithm incorporating isoparametric boundary elements. Higher order quadratic elements were used since they can model the wavy nature of the dynamic problem investigated more accurately.