1. The problem statement, all variables and given/known data This represents simply supported beam resting on two columns. Two uniformly distributed loads act on the beam. What is the distance taken by each column in this case? 3. The attempt at a solution I calculated reaction forces. I have bending and shear forces diagrams. I do not know what to refer to in order to obtain tributary distances of each columns..(bending moment diagram, centre of gravity??? ). Values are rounded up if anybody wonders. The distances in the diagram are not known by the way. Thanks a lot an d please help.