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Do you know, what kind of elemnt can be used to model a coupled spring matrix in opensees programe. The matrix can be shown in below table. coupled 6*6 spring Ux Uy Uz Rx Ry Rz Ux 519900 0 0 0 7195000 0 Uy 0 533500 0 -7325000 0 0 Uz 0 0 56440000 0 0 0 Rx 0 -7324000 0 6359000000 0 0 Ry 7195000 0 0 0 ...

I've already change all "/2" into "/2.0"in my script, but it does not converaged still, in the window of the "cmd.exe",it shows that: opensees>analyze failed, returned: -3 error flag can't read "fmt1": no such variable while executing "format $fmt1" ...

Hello, I 'm a Chinese postgraduate student, I think I found a bug in the Moment-curvature3D.tcl examples! when I copy the analyse part of the "Moment-curvature3D.tcl " to my script there shows some bug in it! Here give you my script! the problem is that: During the main proc "M-canaly...

I make a script to extract Mx from the result file of the recorder but it is inefficient!, #get the moment around the z-axis from file " PierElement-Lf_$idaSa-E$earthquake.out" put them into PierElement-LMZ_$idaSa-E$earthquake.out" set start [open PierElement-Lf_$idaSa-E$earthquake.ou...

why are you so busy? You don't have any time to help me solve this problem? I've already change the your truss examples but it doesn't work the following is my changing of the examples , something wrong with it I realy need your help. # OpenSees Example 1.1 # OpenSees Primer # # Units: kips, in, sec...

# wipe; # clear opensees model model basic -ndm 2 -ndf 3; # 2 dimensions, 3 dof per node file mkdir ff; # create data directory node 1 0 0 node 2 10 10 node 3 20 20 node 4 30 30 node 5 40 40 node 6 50 50 node 7 60 60 node 8 70 70 node 9 80 80 node 10 90 90 node 11 100 100 fix 1 1 1 0; fix 11 1 1 0; ...

I'm learning how to use the opensees,maybe the problem is fool. But,in SAP we can direct assign a p-delta force for a element in order to consider the geometry stiffness contribution to the elsatic stiffness. Do opensees has this kind of function? For example ,I'v already know the internal forces of...