column jacket-urgent help needed!

[sandhya]

I don't see a change in my column node displacements due to time history analysis, after modeling a patch of jacket in the following manner:

patch circ $IDcore $nfCoreT $nfCoreR 0 0 $riCol $rc_M 0 360; # Define the core patch
patch circ $IDcover $nfCoverT $nfCoverR 0 0 $rc_M $roCol 0 360; # Define the cover patch
patch circ 5 $nfCoverT $nfCoverR 0 0 $roCol [expr $roCol+$jacket_thkness] 0 360; #patch for jacket

#this is my A 36 steel jacket:
uniaxialMaterial Steel02 5 [expr 36*$ksi] 29000 0.03 $R0 $cR1 $cR2;

#this is my FRP jacket material with E=9950ksi, ult tensile strain=0.004:
uniaxialMaterial Elastic 4 9950;
uniaxialMaterial MinMax 5 4 -max 0.004;