DYNAMIC ANALYSIS OF MULTISTEP PILES ON PASTERNAK SOIL SUBJECTED TO AXIAL TIP FORCES

✍ Scribed by M.A. De Rosa; M.J. Maurizi

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 120 KB
• Volume: 219
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1998.1826

✦ Synopsis

The dynamic analysis of a foundation pile on a two-parameter elastic soil is performed, in the presence of non-classical boundary conditions. The soil discontinuities are simulated through the introduction of n step variations of the cross-section, whereas the partial restraints at the top and at the bottom are taken into account by imposing non-classical boundary conditions. Finally, the pile is supposed to be subjected to a conservative axial load at the tip. The analysis can be considered to be exact, in the framework of the Euler-Bernoulli hypothesis, the differential equation of motion is deduced and solved, and the frequency equation is derived for an arbitrary number of steps. Some numerical examples complete the paper.