Hi,

As I am quite new to Sofistik, I regulary check my results by other calculations. I have modelled a bridge beam with non-effective areas, and when checking the report from the Cross sections (AQUA), I noticed there was a difference between the table “Effective static properties of cross section” and " Design values of cross section". In spite of the fact that I find it more intuitive to use “Design values of cross section”, I have come to learn that thiese are properties for some other kind of design operations and therefore I should use the “Effective static properties of cross section”. Correct?

Quote from AQUA-manual, section 4.5:

*"In case the materials have safety factors, then some analysis methods require that the stiffness*

*to to be reduced by the safety factors. As this would result in totally different values for*

*composite cross sections, an extra table for the design sectional values was introduced."*

So, my question to help my understanding, is; what kind of analysis methods require the “Design values of cross section”?

Kind regards,

Øystein