Fatigue Evaluation of FRP-Concrete Bridge Deck on Steel Girders at High Temperature (2)
Publication Name: Evolving and Revolutionary Technologies for the New Millennium
Publication URL: https://www.nasampe.org/store/viewproduct.aspx?id=4294215
This paper presents the high-temperature fatigue performance evaluation of an FRP-concrete bridge deck. The deck is made of FRP pultruded panels that serve as stay-in-place form-work and concrete reinforcement. This work is part of an ongoing multi-university research program to evaluate and install multiple FRP bridge deck systems in Dayton, Ohio. A two- span continuous FRP-concrete deck was built on three steel girders. The specimen was subjected to an eccentric load that simulates an AASHTO HSZO design truck with impact. One million load cycles were applied at a controlled high-temperature of 49¡C. Quasi-static tests were conducted before and after fatigue cycling to evaluate the load-deflection response and residual deformations. The FRP-concrete deck met the service load design criteria specified by Ohio DOT after fatigue cycling at high-temperature.