Synthesis Study: Heat Treatment and Its Effects on Rehabilitating Steel Bridges in Indiana

Assessment of Bridges Subjected to Vehicular Collision

“…Heat straightening dates back to early welders (FHWA, 2015) and has been performed on bridges since the mid-20th century (Avent, Robinson, Madan & Shenoy, 1992;Avent, 1989). However, little research had been performed in this area until the 1970s and 1980s (FHWA, 2015;Lackowski & Varma, 2007). Avent et al (1992) performed the first experimental study to investigate the effect of heat straightening on initially damaged specimens, finding that damaged specimens with strains up to 100 times yield strain could be heat straightened.…”

“…Avent et al (1992) performed the first experimental study to investigate the effect of heat straightening on initially damaged specimens, finding that damaged specimens with strains up to 100 times yield strain could be heat straightened. Earlier experimental research focused on the behavior of undamaged steel subjected to heat treatment (Lackowski & Varma, 2007). The reader is referred to Lackwoski & Varma (2007) for a detailed review of research related to heat straightening.…”

“…Earlier experimental research focused on the behavior of undamaged steel subjected to heat treatment (Lackowski & Varma, 2007). The reader is referred to Lackwoski & Varma (2007) for a detailed review of research related to heat straightening. Recent major research activity in this area includes the work of Varma & Kowalkowski (2004) who investigated the effect of damage strain, remaining stress, damage/ repair cycles, and heating temperature on material properties.…”