TY - JOUR
T1 - Model tests on horizontal pile-to-pile interaction incorporating local non-linearity and resonance effects
AU - Goit, Chandra Shekhar
AU - Saitoh, Masato
AU - Mylonakis, George
AU - Kawakami, Hideji
AU - Oikawa, Hiroki
PY - 2013/5/1
Y1 - 2013/5/1
N2 - Dynamic experimental studies on horizontal interaction factors for laterally loaded model soil-pile systems subjected to low-to-high amplitude pile head loading are reported, focusing on the effect of dynamics and local non-linearity. Results obtained from dynamic experiments with different amplitudes of harmonic lateral loading on instrumented model soil-pile systems conducted on a shaking table indicate that the resonance of soil-pile system shows a profound impact on the horizontal interaction factors. Furthermore, behavior of the soil-pile system becomes highly non-linear with increasing amplitude of loading, as the extent of local non-linearity around the pile increases. Consequently, group effects cannot be predicted by using established approximate equations based on the assumption of linear viscoelastic behavior. To this end, new semi-empirical equations are proposed for obtaining the horizontal interaction factors, as an extension of available approximate equations to incorporate the local non-linear behavior of soil-pile system for both small and large pile spacings.
AB - Dynamic experimental studies on horizontal interaction factors for laterally loaded model soil-pile systems subjected to low-to-high amplitude pile head loading are reported, focusing on the effect of dynamics and local non-linearity. Results obtained from dynamic experiments with different amplitudes of harmonic lateral loading on instrumented model soil-pile systems conducted on a shaking table indicate that the resonance of soil-pile system shows a profound impact on the horizontal interaction factors. Furthermore, behavior of the soil-pile system becomes highly non-linear with increasing amplitude of loading, as the extent of local non-linearity around the pile increases. Consequently, group effects cannot be predicted by using established approximate equations based on the assumption of linear viscoelastic behavior. To this end, new semi-empirical equations are proposed for obtaining the horizontal interaction factors, as an extension of available approximate equations to incorporate the local non-linear behavior of soil-pile system for both small and large pile spacings.
UR - http://www.scopus.com/inward/record.url?scp=84874739594&partnerID=8YFLogxK
U2 - 10.1016/j.soildyn.2013.02.002
DO - 10.1016/j.soildyn.2013.02.002
M3 - Article (Academic Journal)
AN - SCOPUS:84874739594
VL - 48
SP - 175
EP - 192
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
SN - 0267-7261
ER -