There are many historical steel bridges with riveted joints, but damaged riveted joints is often repaired by replacing rivet with high-strength bolt. The reason is that the number of rivet casting engineers has decreased and application technique has not been passed on. The method of replacing damaged rivets with new rivets is effective in terms of workability and structural mechanics, and the rivet casting unit using high-frequency induction heating that can be used on site has been developed. In particular, the technical information necessary for riveting, which has not been recorded in conventional construction methods, was extracted through experiments, and the developed rivet casting technique was evaluated and verified.
