Stress-Prediction Model for Airport Pavements with Jointed Concrete Slabs

Abstract

Two specific three-dimensional finite-element models are presented for making an evaluation of the maximum stresses at critical locations in concrete slabs (i.e., at the interior and edge) that is superior to the classic approach of the approximate methods. Concrete airport pavements with square-shaped slabs are studied. A homogeneous, isotropic elastic half-space is assumed as a subgrade (foundation) model so that the influence of variation in Young’s modulus is examined in contrast with Winkler’s reaction modulus. The effects of two aircrafts (A380 and B747), different subgrade bearing capabilities and temperature gradients