Abstract: A model to predict the stress‐strain behavior of concrete composites under random cyclic compressive loadings is developed. The model uses the envelope unloading strain as an index of load history. The plastic strain and ...

Abstract: Transportation Technology Center, Inc. (TTCI) is investigating the feasibility of using vehicle-based systems to detect railroad bridge impairments to supplement regular bridge inspections. Test results show that an onboard ...

Abstract: Transportation Technology Center, Inc., the University of Illinois, and the Burlington Northern Santa Fe (BNSF) Railway Company conducted tests on a long concrete trestle to quantify the longitudinal forces generated by a ...