Accumulation ofresidual deformations due to cyclic loading with complicated strain loops
DOI:
https://doi.org/10.21703/0718-2813.2008.4.3675Keywords:
strain accumulation model, cyclic loading, granular soil, residual deformations, strain loops, dynamic triaxial testAbstract
The foundations of structures near railways and the foundations of offshore wind turbines have in common the cyclic loading during a long period of time. The accumulation of residual deformations has been studied in the past for some practical problems such as filling of tanks and silos and for the case of machine foundations where the strain loops are approximately one-dimensional. In the case of earthquakes, wind and waves the excitations are not constant, leading to complicated strain loops. This paper presents a project proposal to investigate numerically and experimentally the accumulation of residual deformation in granular soils under loadings that generate complicated strain loops. The experimental approach considers long-time cyclic triaxial tests in the new Soil Dynamics Laboratory in the Institute of Soil Mechanics and Rock Mechanics in the Universitáit Karlsruhe.
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