Parameter Study of a New Strut-and-Tie Model for a Thick Cap with Six Piles

Abstract

A comprehensive strut-and-tie model is a function of the nodes, struts, ties, model types, and pile reaction force. Because each element has more than one solution, the function is a problem of permutations and combinations. This paper presents a new strut-and-tie model that yields a satisfactory simulation result. In the model, a model type of truss action, direct arch action, or a combination of both actions was selected independently for the side and angle piles. The node and tie parameters were also modified. The pile reaction force distribution and the failure mechanism for inclined struts were also considered. However, because the authors’ previous study did not include a detailed analysis or an in-depth exploration, the effect of these critical factors is discussed in this paper at length. The model, which was programmed using the