Answer:
The simple answer is - full weight is NOT 60% of weight. Referencing model from SR provided by the user: " Heater _273_OF 43-9146_RC3 ".
Run the file and generate the report.
Now go to the case 11.
The transverse reaction total = 58.4+24.7 = 83.1 daN.
This is derived as follows, in the seismic calculation for the moment and loads in plane of saddle calculation the weight of vessel does not include the weight of saddles.
So W= total weight in operating case - weight of saddles
W = 726 - 38
W = 688kg.
Check the weights in summary of weights.
Therefore,
F=0.7V
= 0.7 x V
= 0.7 x Cs x W
= 0.7 x 0.176 x 688 x 0.981
= 83.15 daN.
Which matches with the result in report.