TRBAis National Cooperative Highway Research Program (NCHRP) Report 604: Heat-Straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance explores limits, based on fatigue and fracture performance, on the number of damage and repair cycles to which damaged steel bridge girders may be subjected using the heat-straightening procedure.... used for the impacts made near Stiffener 1 and Cover Plate 1 was 2, 945 lb ( 1, 336 kg) that was dropped 20 ft (6.1 m). ... During the repair process of the impact at Stiffener 2, a crack formed during a cooling cycle at the toe of the weld on the flange as seen in Figure 2.2. ... This proved that applicable heat- straightening procedure recommendations in the FHWA manual were being satisfied, so the crackanbsp;...
|Title||:||Heat-straightening Repair of Damaged Steel Bridge Girders|
|Author||:||Robert J. Connor, M. J. Urban, Eric James Kaufmann|
|Publisher||:||Transportation Research Board - 2008-01-01|