Hi,
Just a quick question, probably not so much Robot specific - is the constant value of stiffness factor (see full slab mapped in yellow with a constant value) for the slabs based on creep where elastic modulus is reduced Eceff = Ecm/(1+ f)? where slab section is not cracked, the stiffness factor is mostly about 2-2.5 as per the lower slab in the image below (upper slab in the image below has higher moment and is cracked, lower one uncracked).
