Problem:

Is the correct Soil Factor per EN1998-1 being used?

Solution:

There was an French rule from 2010-10-04 where the values of S (Soil factor) are different from the EUROCODE

EN 1998-1:2004+A1:2013:

S = 1.8 for ground Type D

S = 1.6 for ground Type E

French Rule 2010-10-04:

S = 1.6 for ground Type D

S = 1.8 for ground Type E

AutoPIPE Vessel conforms to the Eurocode (EN 1998-1:2004+A1:2013).

The user can enter a user-defined normalized spectrum to get different values of S (S is equal to Ra in the Dialog).