Dynamic Interaction of Surface Machine Foundations under Vertical Harmonic Excitation
Abdelmoneam Moussa; Tarek Macky; Mohamed M. Morsy; Ahmed, Sayed;
Abstract
In this paper, the interaction of machine foundations is studied by considering a three-dimensional model of two square footings wilt variable spacing, loaded by vertical harmonic forces. The finite element method (FEM) is used in this study with the soil modeling as visco-elastic half space. To calculate the displacement, the complex response method is adopted, and the analysis is implemented in the frequency domain. A parametric study is carried out to evaluate the effect of the spacing of the foundation, and the frequencies. the phase difference and the amplitude of the forcing functions. One result of the study shows that the interaction of adjacent foundations may double the response of single footing at low spacing/width ratios which may affect the serviceability requirements of machine foundations. Dimensionless design curves have been developed mass ratio of 5.0 to take the interaction into consideration in the machine foundations designs. The curves incorporate the previously mentioned factors
Other data
Title | Dynamic Interaction of Surface Machine Foundations under Vertical Harmonic Excitation | Authors | Abdelmoneam Moussa; Tarek Macky; Mohamed M. Morsy; Ahmed, Sayed | Issue Date | Nov-1997 | Conference | EGYQUAKE 2. The Second Egyptian Conference on Earthquakes, Aswan, Egypt |
Attached Files
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Paper 1997.pdf | 1.93 MB | Adobe PDF | Request a copy |
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