A shallow foundation is modeled.Beams on Non linear Winkler Foundation (BNWF) model is used. after application of gravity load the pulse load is applied on the foundation as mentioned below.

loadConst -time 0.0

timeSeries Pulse 1 0 100000 1;

pattern Plain 2 1 {

load 1 0.0 -1.0 0.0

}

wipeAnalysis

system UmfPack

constraints Transformation

test NormDispIncr 1.0e-2 40 0

algorithm KrylovNewton

numberer RCM

set gamma 0.5

set beta 0.25

integrator Newmark $gamma $beta

analysis Transient

analyze 100000 1

is there anything wrong with the code? unable to plot a graph between number of cycles versus settlement of foundation.