Mechanical properties of steel ber-reinforced concrete slab tracks on non-ballasted foundations

Mechanical properties of slab tracks on a foundation with nonlinear stinessare accounted for. at rst, the cracking stages were inspected in fem models, and it waslearned that slab tracks have one-way exural behavior. secondly, experimental full-scalemodels were made, and the accuracy of analyses was veried by comparing the fem loaddeection curves with those of previous studies and validating the cracking and ultimateloads with those obtained from experiments. finally, the eects of several parameterson the cracking and ultimate loads and the energy absorption of steel ber-reinforced slabtracks were investigated by examining the real behavior of slab tracks on elastic foundationsbefore and after cracking. steel bers increased the compressive and exural strengths aswell as ductility and energy absorption. the 2.5 m width was the optimal width and thefracture pattern changed at this width. finally, based on the obtained fracture loads,design curves were plotted for aashto's factored loads.