2019 Volume 37 Issue 1 Pages 52-58
It is necessary to understand the formation characteristics of welding deformation that occurs during the manufacturing process of the truss structure of steel angles. We evaluated the welding deformation behavior experimentally and numerically using a joint model and a real-scale truss structure model. As a result, we revealed that the main beams of the welded truss structure were arched against the direction of angular distortion observed in the welded joint model. The deformation tendency was explicable on the basis of theory in terms of uniformly distributed inherent strain within the mechanical melting zone. This analysis suggested a new theoretical insight that can facilitate suppression of welding deformation in the truss structure.
