Numerical Investigation on Damage Evolution of Piles inside Liquefied Soil Foundation - Dynamic-Loading Experiments -

Authors: Ahmed Mohammed Youssef Mohammed, Mohammad Reza Okhovat, Koichi Maekawa

Abstract:

The large and small-scale shaking table tests, which was conducted for investigating damage evolution of piles inside liquefied soil, are numerically simulated and experimental verified by the3D nonlinear finite element analysis. Damage evolution of elasto-plastic circular steel piles and reinforced concrete (RC) one with cracking and yield of reinforcement are focused on, and the failure patterns and residual damages are captured by the proposed constitutive models. The superstructure excitation behind quay wall is reproduced as well.

Keywords: Soil-Structure Interaction, Piles, Soil Liquefaction.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1077655

References:

[1] Hamada, M.(1992). "Large ground deformations and their effects on lifelines: 1964Niigata earthquake. Case studies of liquefaction and lifelines performance during past earthquakes," Technical Report NCEER-92-0001, Volume 1, Japanese Case Studies, National Centre for Earthquake Engineering Research. Buffalo, NY.
[2] Wilson, D. W. (1998) "Soil-pile-superstructure interaction in liquefying sand and soft clay," PhD thesis, University of California, Davis, CA.
[3] Towhata, I. (2008). "Geotechnical Earthquake Engineering," Springer, Germany.
[4] Mohammed, A. M. Y., Okhovat, M. R., and Maekawa, K. (2012). "Damage Evolution of Underground Structural Reinforced Concrete: -Small-Scale Static-Loading Experiments," International Journal of World Academy of Science, Engineering and Technology, 6,696-703.
[5] Motamed, R.,Towhata ,I., Honda, T.,Yasuda, S., Tabata, K.,Nakazawa, H. (2009). "Behavior ofpile group behind a sheet pile quay wall subjected to liquefaction-induced large ground deformation observed in shaking test in E-Defense project,"Soils and foundations, 49(3), 459-475.
[6] Maki, T., Maekawa, K., Nakarai, K. and Hirano, K. (2004). "Nonlinear response of RC pile foundations in liquefying soil," Japan Geotechnical Society.
[7] Maekawa, K., Pimanmas, A. and Okamura, H. (2003). "Nonlinear Mechanics of Reinforced Concrete," Spon Press, London.
[8] Maki, T., Maekawa, K., and Mutsuyoshi, H. (2005). "RC pile-soil interaction analysis using a 3D-finite element method with fiber theory-based beam elements," Earthquake Engineering and Structural Dynamics, 99, 1-26.
[9] Tuladhar, R., Maki, T., and Mutsuyoshi, H. (2008). "Cyclic behavior of laterally loaded concrete piles embedded into cohesive soil," Earthquake Engineering and Structural Dynamics, 37, 43-59.
[10] Okhovat, M. R., and Maekawa, K.(2009) " Damage control of underground RC structures subjected to service and seismic loads," PhD thesis, University of Tokyo.
[11] Kato, B. (1979). "Mechanical properties of steel under load cycles idealizing seismic action," CEB Bulletin D-Information, 131, 7-27.
[12] Towhata, I. and Ishihara, K. (1985) "Modeling soil behaviors under principal stress axes rotation," 5th Int. Conf. on Numerical Method in Geomechanics, Nagoya, 523-30.
[13] Masing, G.(1926 )"Eigenspannungen and VerfestigungBeim Messing," Proc. of Second International Congress of Applied Mechanics, 332, Zurich.
[14] Maekawa, K. and An, X. (2000). "Shear failure and ductility of RC columns after yielding of main reinforcement," Engineering Fracture Mechanics, 65, 335-368.
[15] Li, B., Maekawa, K. and Okamura, H. (1989). "Contact density model for stress transfer across crack in concrete," Journal of Faculty of Engineering, University of Tokyo (B), 40(1), 9-52.
[16] Nam, S. H., Songa, H. W., Byuna, K. J., Maekawa, K. (2006)" Seismic analysis of underground reinforced concrete structures consideringelasto-plastic interface element with thickness,"Engineering Structures, 28, 1122-1131.
[17] Toki, S., Tatsuoka, F., Miura, S., Yoshimi, Y., Yasuda, S. and Makihara, Y. (1986). "Cyclic undrained triaxial strength of sand by cooperative test program," Soils and Foundations, 26(3), 117-128.