hi body,i wanna model a simple cantilever beam under lateral load,i do it but it is out of work and i dont know why.pls help me.tnx
model BasicBuilder -ndm 2 ndf 2;
node 1 0 0
node 2 0 5
node 3 0 10
fix 1 1 1
fix 2 0 0
fix 3 0 0
element elasticBeamCoulumn 1 0 5 3600 4227 1080000
element elasticBeamCoulumn 2 0 10 3600 4227 1080000
load 3 100 0 ;
recorder Node -file Node2.out -time -node 2 -dof 1 2 disp
recorder Node -file Node3.out -time -node 3 -dof 1 2 disp
i have a problem about model of cantilever beam
Moderators: silvia, selimgunay, Moderators
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- Posts: 11
- Joined: Tue Jan 29, 2013 5:16 am
Re: i have a problem about model of cantilever beam
Your model has many Problems.
What is Point 2 for?
I think material and load units are not correct.....Check them.
I think your model is something like below...
# Cantilever Beam under concentrated load at the end of it.
# ******************************************************************
model BasicBuilder -ndm 2 ndf 3;
node 1 0 0
node 2 5 0
node 3 10 0
fix 1 1 1 1
geomTransf Linear 1
element elasticBeamColumn 1 1 2 3600 4227 1080000 1
element elasticBeamColumn 2 2 3 3600 4227 1080000 1
# Load Definition
pattern Plain 1 Linear {
load 3 0.0 -100.0 0.0
}
recorder Node -file Node2.out -time -node 2 -dof 1 2 disp
recorder Node -file Node3.out -time -node 3 -dof 1 2 disp
# Gravity Analysis
constraints Plain
numberer Plain
system BandGeneral
test NormDispIncr 1.e-8 60
algorithm Newton
integrator LoadControl 0.1
analysis Static
analyze 10
# *****************************************************************
What is Point 2 for?
I think material and load units are not correct.....Check them.
I think your model is something like below...
# Cantilever Beam under concentrated load at the end of it.
# ******************************************************************
model BasicBuilder -ndm 2 ndf 3;
node 1 0 0
node 2 5 0
node 3 10 0
fix 1 1 1 1
geomTransf Linear 1
element elasticBeamColumn 1 1 2 3600 4227 1080000 1
element elasticBeamColumn 2 2 3 3600 4227 1080000 1
# Load Definition
pattern Plain 1 Linear {
load 3 0.0 -100.0 0.0
}
recorder Node -file Node2.out -time -node 2 -dof 1 2 disp
recorder Node -file Node3.out -time -node 3 -dof 1 2 disp
# Gravity Analysis
constraints Plain
numberer Plain
system BandGeneral
test NormDispIncr 1.e-8 60
algorithm Newton
integrator LoadControl 0.1
analysis Static
analyze 10
# *****************************************************************
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- Posts: 11
- Joined: Tue Jan 29, 2013 5:16 am
Re: i have a problem about model of cantilever beam
tnx hnaderi
but
when i wrote your codes in opensees.exe &Tcleditor i face to problem!
when i wrote in opensees.exe it showed me outputs (node2.out node3.out) but both of them were blank!!
and when i wrote in Tcleditor and ran it showed me in the blackpage something like this"couldnt read file :no such file or directory end of script reached,press any key to continue" with no output!!
pls help me
I acknowledge im beginner in using opensees.
but
when i wrote your codes in opensees.exe &Tcleditor i face to problem!
when i wrote in opensees.exe it showed me outputs (node2.out node3.out) but both of them were blank!!
and when i wrote in Tcleditor and ran it showed me in the blackpage something like this"couldnt read file :no such file or directory end of script reached,press any key to continue" with no output!!
pls help me
I acknowledge im beginner in using opensees.
Re: i have a problem about model of cantilever beam
Just copy the code and paste it on Tcleditor.
first you must save the file and then run it.
it works.
first you must save the file and then run it.
it works.
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- Posts: 11
- Joined: Tue Jan 29, 2013 5:16 am
Re: i have a problem about model of cantilever beam
tnx my friend.
i wish best for you.
i wish best for you.