RAM Load History Deflection & Eurocode 2 Long Term Deflection

Hi,

I'm comparing long term deflection results using RAM Load history deflection method and other software which adopt EC2 method (not kcs).

The result that I have is similar in result but different with regards to the deflection contour.

Could anyone please advise the difference between RAM Load history deflection and EC2 method?

I understand that EC2 does not consider load steps, aging coefficients etc.

Apart from these what are the fundamental different between these method that might affect the deflection contour?

Thank you very much

Regards,

Eric Mulyono