Proceedings of the International Conference on Concrete Pavements · 2025 · 25 citations · 0 references
Highway PavementEngineeringMechanical EngineeringPavement DesignStructural ApplicationStructural PerformanceStructural OptimizationComputational MechanicsStructural EngineeringGeotechnical EngineeringPavementsWinkler Dense LiquidFoundation EngineeringConcrete TechnologyIlli SlabStructural DesignFinite Element MethodCivil EngineeringStructural AnalysisGeomechanicsStructural MechanicsConstruction Engineering
The Finite Element Method has been a very powerful tool for the analysis of slab-on grade type pavements in the last two decades. A number of programs have been developed which treat the slab as an elastic plate and characterize foundation support either as a dense liquid or as an elastic solid. This paper describes the development of an expanded and revised version of ILLI-SLAB, which now incorporates four subgrade idealizations: the Winkler dense liquid, the Boussinesq elastic solid, the stress dependent resilient subgrade and the Vlasov two-parameter foundation. Comparative studies are greatly facilitated and results from numerous runs are presented to illustrate the scope of the program's applicability. The efficient utilization of ILLI SLAB is ensured by adherence to guidelines established during several convergence studies described.