Section Recorder for dispBeamColumn

[arbarbosa]

Hello All,

Can the results of a dispBeamColumn element be returned only for one section? I was able to get the following recorder to work that gives the output for all sections in a dispBeamColumn element, but not for one specific section.

So this command seems to work:
recorder Element -file Element1.out -time -ele 1 3 section force

but not:
recorder Element -file Element1.out -time -ele 1 3 section 1 force

It is not so important, except if I want to make a code for a recorder general for both dispBeamColumn elements and forceBeamColumn elements.

Thank you.

[vesna]

Thank you for letting us know. We will fix this.

[arbarbosa]

Thank you again Vesna and Frank!! I think that this next comment may be of little use once you solve the section output, but currently if I record the stressStrain response of a fiber within a section, I am not sure which fiber (for which section) opensees is currently outputing.

[vesna]

What is your recorder for stressStrain and what is the output?

[arbarbosa]

For a dispBeamColumn element I am writing something like:

# Strain-Stress in tensioned steel fiber
recorder Element -file $dataDir/Steel.out -time -ele 1 section fiber [expr $cover1-$y1] [expr $z1-$cover2] 3 stressStrain;

# Strain-Stress in more compressed concrete fiber
recorder Element -xml $dataDir/ConcCover.xml -time -ele 1 section fiber [expr $y1] [expr $z1] 2 stressStrain;

[vesna]

As the output you will have time in the first column, and then pairs of stress-strain for each integration point of the element starting from point i and going towards point j (from section 1 to section $nIP).

[vesna]

If you download the latest version of OpenSees you will be able to record forces at the specific sections. The bug is fixed.

[arbarbosa]

Thank you. Have a good weekend.