OpenSees Challenge 2011

[GIRGISFATHY]

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[tarskywalker]

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[truegrift]

wipe
puts "system"
model basic -ndm 2 -ndf 3
node 1 0 0 0
node 2 0 30 0
node 3 20 30 0
node 4 20 0 0
node 5 10 30 0
puts "rigidDiaphragm"
puts "mass"
mass 1 117612 117612 117612
mass 4 117612 117612 117612
mass 2 169884 169884 169884
mass 3 169884 169884 169884
mass 5 52272 52272 52272
puts "node"
fix 1 1 1 1
fix 4 1 1 1
puts "material"
uniaxialMaterial Steel01 1 400000 206000000 0.01
uniaxialMaterial Concrete01 2 -54180 -0.0037 -22240 -0.0013
uniaxialMaterial Concrete01 3 -46500 -0.002 -37200 -0.004
uniaxialMaterial Steel02 4 306.87e3 206e6 0.01 15 0.9 0.15 0.2 4.5 0.2 4.5
section Fiber 1 {
#core fiber
patch rect 1 8 1 -8 -8 8 8
#cover fiber
patch rect 2 6 1 -9 -9 9 -8
patch rect 2 6 1 -9 8 9 9
patch rect 2 2 1 8 -8 9 8
patch rect 2 6 1 -9 -8 -8 8
#reinforcing fiber
layer straight 1 3 4.9087e-4 0.8 0.8 -0.8 0.8
layer straight 1 2 4.9087e-4 0.8 0 -0.8 0
layer straight 1 3 4.9087e-4 -0.8 0.8 -0.8 -0.8
}
geomTransf Linear 1
geomTransf Linear 2
element nonlinearBeamColumn 1 1 2 3 1 1
element nonlinearBeamColumn 2 4 3 3 1 1
element nonlinearBeamColumn 5 2 5 3 1 2
element nonlinearBeamColumn 6 5 3 3 1 2
element truss 3 1 5 4 4
element truss 4 4 5 4 4
puts "recorder"
recorder Node -file node2disp.out -time -node 2 -dof 1 2 3 disp
recorder Node -file node3disp.out -time -node 3 -dof 1 2 3 disp
recorder Element -file localForce.out -time -eleRange 1 6 localForce
## Load Case = DEAD
pattern Plain 1 Linear {
load 5 200 0 0
}
puts "analysis"
constraints Plain
numberer Plain
system BandGeneral
test EnergyIncr 1.0e-6 200
algorithm Newton
integrator LoadControl 0.1
analysis Static
analyze 10
loadConst -time 0.0

set xDamp 0.05;
set nEigenI 1;
set nEigenJ 2;
set lambdaN [eigen [expr $nEigenJ]];
set lambdaI [lindex $lambdaN [expr $nEigenI-1]];
set lambdaJ [lindex $lambdaN [expr $nEigenJ-1]];
set omegaI [expr pow($lambdaI,0.5)];
set omegaJ [expr pow($lambdaJ,0.5)];
set alphaM [expr $xDamp*(2*$omegaI*$omegaJ)/($omegaI+$omegaJ)];
set betaKcurr [expr 2.*$xDamp/($omegaI+$omegaJ)];
rayleigh $alphaM $betaKcurr 0 0

set IDloadTag 1001;
set iGMfile "GM1X.txt";
set iGMdirection "1";
set iGMfact "0.6072";
set dt 0.02;
foreach GMdirection $iGMdirection GMfile $iGMfile GMfact $iGMfact {
incr IDloadTag;
set GMfatt [expr 1*$GMfact];
set AccelSeries "Series -dt $dt -filePath $iGMfile -factor $GMfatt";
pattern UniformExcitation $IDloadTag $GMdirection -accel $AccelSeries;
}

constraints Transformation;
numberer Plain;
system UmfPack;
test NormDispIncr 1.0e-1 1000;
algorithm Newton
integrator Newmark 0.5 0.25
analysis Transient
analyze 3000 0.005

[tahere]

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[XIEWENBO]

hello Who did the underground structure dynamic nonlinear analysis
This is my analysis modeling process,

1.Soil - structure interaction model is established
2.The analysis of elastic and plastic of site soil

3.The gravimetric analysis of underground structure
4.The dynamic analysis of soil-structure

Could you tell me the process correctly or not