Project Location: Dallas, Texas
Client: Drillers, Inc.; Houston, Texas
Dates: 1994

Partners of LCR&A designed footing caps and replacement drilled-shafts for the foundation of several single columns of the Fair Park Bridge Reconstruction Lanes in Dallas, Texas.  Theories and models of strut-and-tie systems were used to perform the footing beam design.  Results were later checked with more conventional design methods from ACI.  The replacement shafts were designed by modeling the soil under lateral loads with non-linear p-y curves and under axial loads with nonlinear t-z curves.  The proximity of failed shafts was taken into account with modifications to the mentioned p-y curves.