Application of Non-Linear Fiber Section Model on Spun Piles With and Without Concrete Infill Subjected to Cyclic Loading

This numerical analysis study predicts the behavior of spun piles with and without concrete infill under cyclic flexural loading and constant axial load. A fiber section using STKO pre- and post-processor for the OpenSEES program was employed. Spun piles were modeled using displacement-based beam-column elements with distributed plasticity and cyclic loading procedures with displacement control. The numerical method proposed for this research was verified by comparing it to reliable experimental results.