I Flange Width
The best way to determine a good flange fit is to observe your nipple in the breast flange tunnel during pumping. Good fit, the The effective flange width is now taken to be the tributary width of the slab. See LRFD 4.6.2.6.1. This method of computation is only applicable for bridges The issue causing the flange to not center is the fact that you have a non-symmetric edge. Flange 1 consumes some of the edge on one side so the Solved: Sheet Metal Flange Width not Center - Autodesk Community ...