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- Title
EFFECT OF LOADING FREQUENCY ON THE DYNAMIC PROPERTIES OF SAND-TIRE MIXTURE.
- Authors
BAHADORI, Hadi; KHALILI, Amin
- Abstract
Today, the use of waste tires mixed with soil has been expanded in various geotechnical projects to absorb and reduce the vibration caused by seismic and dynamic loads. Therefore, the objective of this work was to evaluate the dynamic properties of such mixtures prior to practical applications. To this reason, 1-g shaking table tests were carried out, and the effects of important parameter like loading frequency on the dynamic behavior of mixtures were investigated. Tire powders were added to the sand with 5%, 10%, 15% and 20% in gravimetric basis and with a relative density of zero were subjected to sinusoidal loading at frequencies of 0.5, 1, 2, 3, 5, 7 and 9 Hz and input acceleration of 0.1 g and 0.3 g. The results showed that in all cases, the increase in frequency in the same cycles increased the shear modulus and the damping ratio. Also, with increasing shear strain, the shear modulus of the mixture decreased, but the damping ratio increased. On the other hand, by increasing the tire powder, the value of the shear modulus is reduced, but the amount of damping ratio is increased.
- Subjects
WASTE tires; DYNAMIC loads; SEISMIC response; MODULUS of rigidity; DAMPING (Mechanics)
- Publication
Acta Geodynamica et Geomaterialia, 2019, Vol 16, Issue 3, p269
- ISSN
1214-9705
- Publication type
Article
- DOI
10.13168/AGG.2019.0023