Hello,
I am modelling a composite bridge and therefore have three composite girders and I want to design them as design elements. I have already transferred all relevant beam forces to the design elements but I just ain’t able to transfer the beam forces of the traffic loading with ella, despite I have seen this in a tutorial, where they just have transferred the forces form ella with a simple code like this:
prog decreator urs:27.1
head Übergabe Verkehrslasten an dsln
lc (101 112 1)
lc (101 112 1)
end
But when I am trying to transfer the forces I get the following warnings and errors:
++++ warning no. 40144 in program initializeBeamForceTransfer
Design Element x: Superposition load case xxx could not be transferred
++++ warning no. 40141 in program mergeForces
Design Element x: At loadcase xxx no forces were found to integrate.
I know that normally no superposition loadcases can be transferred with decreator but in the tutorial they just did this. So how am I able to transfer the forces from ella to my design elements?
Other question: do I have to design the beams with decreator, when I have modelled the girders as composite beams and modelled a dummy area in the same place of the concrete plate to put the loads in the tranversal direction?
Thanks a lot for the help!
I have uploaded my sofistik file here too 
17001PT_BLP_Passerbrücke_MeBo_Vorbemessung_3_Träger_gerade.sofistik (198.8 KB)