How does the repair criteria for bottom side rails differ for deformation on a web compared to a flange?

When examining the repair criteria for bottom side rails in containers, it's important to understand the structural roles of the web and flange. The web, which is the vertical part of the beam, primarily resists shear forces, while the flange, being the horizontal component, bears bending stresses.

The correct answer emphasizes that different repair depths are necessary based on the location of the deformation. Essentially, the way deformation is addressed depends on whether it has occurred in the web or the flange due to their distinct functions and stress responses in the structure. For example, a minor deformation in the web may not need as deep of a repair as a deformation in the flange, which is critical for overall strength. The criteria dictate that repair methods and depths must be adapted to ensure the structural integrity of the side rails depending on where the damage is located.

This nuanced approach to repair is crucial for maintaining safety and operational efficiency in container structures. Recognizing these differences is vital for container inspectors as they assess and remediate any damage observed.