In this case the walls are corregated steel welded to columns to make up the bin. Basically, I've figured out the section modulus of the bin walls, but I need an appropriate overpressure coefficient to make sure the walls won't buckle under the pressure.
I'm designing a 70' tall, 8'x8'square grain bin to hold corn and soybean meal. I'm having a difficult time determining the overpressure coefficient to use on the bin walls using Janssen formula. There’s some discrepancy between ACI (1991) which tells me to multiply the horizontal pressure by a...