Abstract
By recent development of design tools by computer, FEM analysis has been widely used in structural design for various structures. From the point of view of rational design of steel girders, FEM-based design combined with optimization procedure is expected to be more effective than that based on beam theory analysis. In this study, a 3D-FEM model was first made for a continuous steel multi-girders on which truck loading experiment was conducted, and validity of the model was checked compared with the measured stress data. Weight reduction effect of girders by re-designing using FEM influence line analysis was examined.
