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Bounding surface model for soil resistance to cyclic lateral pile displacements with arbitrary direction
Institution:1. Centre for Offshore Foundation Systems, The University of Western Australia, 35 Stirling Hwy, Perth, WA, 6009, Australia;2. Lloyd''s Register EMEA, Kingswells Causeway, Prime Four Business Park, Kingswells, Aberdeen, AB15 8PU, United Kingdom;1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;2. Centre for Offshore Research and Engineering, Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore;1. Geotechnical Department, Institute of Engineering, National University of Mexico, Building N° 4, P.O. Box 04510, Mexico City, Mexico;2. University of California, 440 Davis Hall, Berkeley, CA 94720-1710, United States;1. Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, the Netherlands;2. RINA Consulting S.p.A. – Geo & Structures Division, Palazzo R, Via Gran S. Bernardo, 20089 Rozzano, Italy;3. Siemens Gamesa Renewable Energy, Prinses Beatrixlaan 800, 2595 BN The Hague,the Netherlands;1. Geotechnical Department, Institute of Engineering, National University of Mexico, Building No. 4, P.O. Box 04510, Mexico City, Mexico;2. University of California, 440 Davis Hall, Berkeley, CA 94720-1710, USA
Abstract:The development of a two-surface elastic–plastic bounding surface PY model for cyclic lateral pile motions is described. The kinematic-hardening model is applicable to the analysis of pile foundations subjected to loading with arbitrary azimuths relative to the pile axis. The model realistically captures the hysteretic energy damping associated with dynamic loading of subsea foundations through physically correct plastic mechanisms and provides results consistent with those observed in physical tests including cyclic loading. Its performance is demonstrated in element states of stress and in pile foundation analyses. The development based on the incremental theory of plasticity results in more robust solutions than may be obtained using alternative elastic, variable moduli and deformation plasticity formulations.
Keywords:Pile damping  MATLAB  Finite element
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