This report contains the findings from an extensive laboratory investigation of electroslag weldments subjected to a variety of tests intended to assess performance that could be expected in actual bridges. The report is recommended to bridge engineers, researchers, and members of specification-writing bodies concerned with behaviour of welded structures. The over-all objective of this project was to develop and verify acceptance criteria for the use of electroslag butt welds in bridges. Research was conducted in two phases. The specific objective of Phase I was to define necessary acceptance specifications based on an experimental study using laboratory specimens from full-size electroslag weldments of the type used in bridge girders. The specific objective of Phase II was to verify the findings of Phase I by conducting tests of full-size bridge girders under simulated service conditions. This report contains the findings of both phases of research and includes suggested acceptance testing procedures for electroslag welding in bridges. (Author/publisher)
Samenvatting