I am designing a strong back beam that will be holding a 100 kip truck bed up. The beam must be lifted by a crane and there are severe height limitations on the overall system so a oval shape must be put in the center of the beam in the web. It needs to be 20" in depth and ranges from 5" to 8"...
I have a steel box roughly 20 X 20 X 20' containing a liquid that is roughly 240 lb/ft^3. The box will be welded at our shop but I am unsure of how to make sure the box itself can withstand the forces subjected to it by the fluid. My main concern is the lateral pressures on the sides might be to...
