knee braced frame

[Amin barghaman]

i want to model knee braced frames with opensees How should i arrange analysis option "test, integrator ......

[fmk]

do some homework .. look at the examples in the examples manual or those here:

[code]
http://opensees.berkeley.edu/cgi-bin/cv ... leScripts/
[/code]

[Amin barghaman]

Hi thanks for your attention I have studied example scripts but i could not find any thing for solving the error have been occured during the analysis.
this is my model please help me about that
-------------------------------------

wipe
model BasicBuilder -ndm 2 - ndf 3
node 1 0 0
node 2 0 280
node 3 0 280
node 4 259 280
node 5 259 280
node 6 259 280
node 7 320 280
node 8 320 280
node 9 320 210
node 10 320 210
node 11 320 210
node 12 285.39 249.72
node 13 285.39 249.72
node 14 285.39 249.72
node 15 320 0

fix 1 1 1 1
fix 15 1 1 1

mass 3 22.94 0 0
mass 7 22.94 0 0

geomTransf Linear 1
geomTransf PDelta 2

uniaxialMaterial Steel02 1 2400 2.1e6 .02 15 .925 .15 0 0 0 0
uniaxialMaterial Steel01 2 100000000 1e11 0.01
source Wsection.tcl
Wsection 1 1 125e-1 6.5e-1 1.25e-1 9e-1 10 2 10 2
Wsection 2 1 10 6e-1 10 6e-1 10 2 10 2

source doublechannelsection.tcl
Doublechannel 10 1 10 5e-1 5 8.5e-1 1 2 10 2 10

source Hollowsquaresection.tcl
Hollowsquare 20 1 6 4.5e-1 6 4.5e-1 2 10 2 10

section Aggregator 30 1 Vy -section 20

# column
element nonlinearBeamColumn 1 1 2 5 1 1
element nonlinearBeamColumn 3 15 11 5 1 1
element nonlinearBeamColumn 4 10 8 5 1 1

# Beam
element zeroLength 5 2 3 -mat 2 2 2 2 -dir 1 2 3 6
element zeroLength 6 7 8 -mat 2 2 2 2 -dir 1 2 3 6
element nonlinearBeamColumn 8 3 4 5 2 1
element nonlinearBeamColumn 9 5 7 5 2 1

# KneeElement
element zeroLength 10 4 6 -mat 2 2 2 2 -dir 1 2 3 6
element zeroLength 11 10 9 -mat 2 2 2 2 -dir 1 2 3 6
element nonlinearBeamColumn 13 12 6 5 30 1
element nonlinearBeamColumn 14 13 9 5 30 1

# Brace
element zeroLength 15 14 13 -mat 2 2 2 2 -dir 1 2 3 6
element nonlinearBeamColumn 16 1 14 5 10 1

equalDOF 2 4 1
equalDOF 2 8 1

pattern Plain 1 Linear {
eleLoad -ele 1 -type -beamUniform -45.88
}

constraints Transformation
numberer RCM
system BandGeneral
test NormDispIncr 1.0e-6 6
algorithm Newton
integrator LoadControl 0.1
analysis Static
analyze 10
loadConst -time 0.0

[fmk]

i can't run it without the additional files of yours that you source .. however, don't bother posting those files as your model makes no sense .. would you draw your model on a sheet of paper and have a look at it.