Wall and bottom loads and the resultant moment of force have been comp
ared for two similar model bins. Corrugated wall bins of 0.6 and 1.2 m
in diameter with height-to-diameter ratios of 4 were used in the expe
riments. The wall and flat bottom of the bins were each supported inde
pendently on three load cells to isolate wall and bottom loads. Center
and off-center discharge of the bins was tested. The vertical wall lo
ad to total grain load and the dimensionless moment found during eccen
tric discharge were strongly influenced by the difference in the wall
friction coefficient resulting from different size corrugations and di
fferent kinds of grain. The maximum moment was found for an orifice ec
centricity ratio of 0.67 for both bins.