Abstract
This paper describes the reinforcing effect of the newly proposed reinforcing method using SFRC paving with ordinary Portland cement and low shrinkage type mixture material for orthotropic steel decks of highway bridges, which have been suffering from fatigue cracking due to heavy traffic loading. To examine the fatigue performance of paving material and steel deck slab, a running wheel fatigue test was conducted using a scale model of the typical orthotropic steel deck without and with SFRC paving. The test results showed that the proposed SFRC paving material was verified to have all the required performance of the specifications for highway bridges in Japan, and the proposed stiffening method effectively improves the fatigue endurance of steel decks.
