Finite element analysis of precast, prestressed concrete piles embedded in cast-in-place reinforced concrete caps subjected to lateral loading

Prestressed piles are an increasingly common foundation type for structures. Their increased popularity has led to more fervent study of their behavior under lateral loads. Of particular interest is the connection between the prestressed pile and reinforced concrete cap. One of the most efficient connection details is the plain embedment of the pile into the cap. Understanding the level of fixity and ductility provided by this detail is essential for the design piles under lateral loading.;In order to further develop the understanding of these connections, a nonlinear finite element model was created to give insight into their response. Multiple finite element model were created using the commercial software ANSYS. These models were then compared to multiple experimental studies to corroborate their accuracy and draw conclusions about piles which are plainly embedded into concrete caps.;After a series of preliminary models were developed, a final model was constructed that was able to accurately capture the results of the experimental studies. The models developed were subjected to a static pushover analysis. The results from these analyses corresponded well with experimental data and observations of the model's behavior are made.;It is believed that this model can provide a framework for further development in numerical modeling of prestressed piles. The use of numerical models will aid in quantifying various behaviors seen in prestressed piling and provide data for development of design criteria.