With the help of two specific examples, the accuracy of the semi-conti
nuum method of analysis is demonstrated with respect to the well-known
grillage method of analysis. Two sources of discrepancy between the r
esults of the two methods are identified: (i) insufficient number of t
ransverse beams in the grillage idealization and (ii) inaccurate appor
tioning of loads to the grillage nodes.