Analysis problem

[maryammf]

Hi everyone,

I am performing the soil-structure interaction analysis and when I want to run it, OpenSees program reads all the steps but suddenly fades!!
I checked my model again and again but do not know where the problem is, unfortunately!
That will be great if you help me in this respect.

Bests,

[ismailqeshta]

I am not sure if I understood your exact question. Are you sure that you put the right recorders in your model code?

[selimgunay]

Trying debugging using puts statements in several locations in your tcl file. puts prints to the command prompt. For example you can do puts "checkpoint1". If you see, checkpoint1 on the screen, it indicates all syntax is fine until that point.

[maryammf]

First, many thanks for your kind response; I did as this by defining puts...and it reads all the steps up to recorders and when it gets to dynamic analysis the OpenSees window fades suddenly! I will appreciate your suggestions in this respect.

[Jhno]

IT happens when an impossible command is issued.
Use a print screen (quick) when the windows fade off. If you time it right, you will see a error command displayed in the OS windows. Might take several attemps to time it right (put a "gets stdin" before the closing of the windows in your script so you can time it right).

[kesavapraba]

Friend, why don't you try executing your OpenSees file through command prompt window? It will keep your error message alive.

[Jhno]

Thk for the input; I did not know about this !

[selimgunay]

It looks like there might be something wrong with your model, did you try running the eigenvalue analysis before and see how the periods look like.

[maryammf]

Many thanks for your suggestions.
As you mentioned, I need to do eigenvalue analysis to see how it goes.

[maryammf]

Hi everyone,

I am running a time history analysis in OpenSees. I receive a warning about invalid nodeId after it reads one of the loadings defined for a node. That node exists in my model, but I am wondering why I receive this warning.

I am defining as this to read the loads from a txt file and apply to its 1st degrees of freedom:

set shearforceFile Shear.txt
set mSeries "Series -dt 0.36 -filePath $shearforceFile -factor 1"
pattern Plain 2 $mSeries {load 35080 1.0 0.0 0.0}


I will appreciate your suggestions in this case.

Bests,