论文简介：

Novel analytical solutions are presented for single-degree-of-freedom (SDOF)
oscillators founded on footings and piles on compliant ground. First, exact formulas are
derived for the fundamental viscoelastic natural period and effective damping of these
structures. It is shown that certain approximations proposed in the literature may be
inaccurate for highly-damped systems. Second, the influence of foundation mass on
natural period and damping is investigated. Third, the effect of coupled
swaying-rocking oscillations at the pile head is addressed by translating the reference
system to the location down the pile, where the resultant soil reaction is applied.



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