Criteria of Welded Splices on Cold-Bent Reinforcing Steel

Specific objectives of this research are (1) to determine changes in microstructure and microhardness in the heat-affected zone (HAZ) of welded cold-bent reinforcing steel, (2) to compare the tensile strength and ductility for welds made on cold-bent versus unbent reinforcing steel, (3) to determine the monotonic stress-strain behavior locally in the HAZ of welded cold-bent reinforcing steel, and (4) to identify specific requirements and/or acceptance criteria for welding on cold-bend reinforcing steel beyond those in AWS D1.4. Project includes quarterly, interim and final reporting as well as technical advisor meetings and a final presentation/workshop in Alaska.