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Journal of the South African Institution of Civil Engineering

On-line version ISSN 2309-8775
Print version ISSN 1021-2019


MBAWALA, S J; HEYMANN, G; ROTH, C P  and  HEYNS, P S. The effect of embedment on a foundation subjected to vertical vibration - a field study. J. S. Afr. Inst. Civ. Eng. [online]. 2017, vol.59, n.4, pp.26-33. ISSN 2309-8775.

Design of machine foundations requires the prediction of the dynamic response of the foundation system at the frequencies of interest. The response is typically quantified in terms of a number of parameters that include the displacement, the dynamic stiffness, the resonant frequency, the amplitude at the resonant frequency and the natural frequency. The objective of this study was to investigate the vertical dynamic response of an embedded foundation experimentally. It was found that embedment increases the stiffness, damping and natural frequency of a foundation system, reduces the displacement and resonant amplitude, but that embedment has very little effect on the resonant frequency.

Keywords : embedment; machine foundations; vertical vibration; resonant frequency; vertical dynamic response.

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