I am having trouble with specifying load combinations. I have assigned point live loads to my mat foundation. I have used area springs for the soil.
When I view the max bearing pressure [under Layers, loading, live (reducible) load.] it has a min/max value of +/-109.9 kN/m2.
I then created a single load combination for live loading only with a factor of 1 (removing all other load combinations) and a design rule, Live, with no active rules.
The max bearing pressure [under layers, load combinations, Live.] then gives values from -61 to +273 kN/m2.
I expected to see the same results instead of this large difference, does anyone know where i'm going wrong?