Seismosoft | Earthquake Engineering Solutions

Thanks.
I have taken a 3story 1 bay concrete reinforced structure. T1=0.6s, mass=153Tonne, dmax=80mm.
The units are metric, force- KN, dim-m, stress KPa, Acc-m/s2.
the "Cd"is taken 100 and 200 to establish e C-displacement curve.
from Th analysis with Koaceli accelerogram the top displacement are 0 ...

I'm trying to model fluid viscous dampers for a 3 story r/c building TH analysis.
I have used link elements to model the FVD. In F1 I have used "vsc_dmp " with kd=1000000, C=100, a=0.15,0
I take the same global displacement for nodes as in the TH analysis.
When I change the C value I take again the ...