Effect of loading frequency on the dynamic properties of sand-tire mixture

Title:

Effect of loading frequency on the dynamic properties of sand-tire mixture

Creator:

Bahadori , Hadi and Khalili , Amin

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:422a0f84-e75c-4c07-ba73-be4fcb0384c7
uuid:422a0f84-e75c-4c07-ba73-be4fcb0384c7
doi:10.13168/AGG.2019.0023

Subject:

sand, tire powder, shaking table, shear modulus, and damping ratio

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

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 0.1g and 0.3g. 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.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

269-280

Source:

Acta geodynamica et geomaterialia : | 2019 Volume:16 | Number:3 (195)

Harvested from:

CDK

Metadata only:

false