In this paper, we present the analysis of a numerical and an experimental study of the Scotch Road integral\r\nabutment bridge located in Trenton, NJ, USA. Three-dimensional, nonlinear finite element (FE) model of the full\r\nbridge has been developed to study the effect of thermal loading on the bridge substructure. The bridge\r\nsubstructure was fully instrumented. Data analysis was performed to study the effect of several design parameters\r\non axial stress in piles. An analysis of the pile-soil system was performed using the finite difference software LPILE.\r\nThe maximum displacement of the bridge superstructure obtained from the FE model due to a maximum\r\nexpected temperature change of �±42�°C during the lifetime of the bridge was applied to the substructure model.\r\nThe effect of bridge skew on the build-up of soil pressure behind the abutment was studied. A significant increase\r\nin the soil pressures and axial stresses behind the abutment at the obtuse side versus the acute was observed. The\r\neffect of the size of the galvanized steel sleeve on the induced axial stresses in piles was studied. We found that\r\nincreasing the size of the steel sleeve increases their capacity to resist bending.
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