Been asked to look into a project for expansion at a feedmill. Typical construction of the walls that allow storage of commodities and fertilizers is attached and has been used on numerous projects; design by others. When I look at the typical wall section, this looks like a viable option at first. The design incorporates, wood bending members that are simply supported and resisted by steel tension members (rods) that prevent the walls from "blowing out." When I run some quick numbers on this, the stud members at the lower sections fail in shear and/or bending due to the hydrostatic loading. Has anyone else dabbled in design of these type of walls or have any comments/suggestions for design. I know the easy solution is to increase the stud member size (width/depth) or decrease member lengths, but am trying hard not to do this since the bin design is not changing drastically from previous designs. Any insight would be greatly appreciated.