A simply supported beam subjected to standard fire

[Walkermaddalozzo]

Hi,

I wanted to run the simple beam script found at: http://openseesforfire.github.io/Subpages/simply_beam.html

The "Downloading the Example package here" link is dead, so I copied the script directly into new .tcl file "beamheat.tcl" which I then converted to a .txt file and have uploaded here. The scrip runs to the 81st iteration and then quits leaving this message:

0.81
CTestNormUnbalance::test() - iteration: 1 current Norm: 13459 (max: 0.0001, Norm deltaX: 8.68088e-13)
WARNING - ForceBeamColumn2dThermal::update - failed to get compatible element forces & deformations for element: 1(dW: << 342.186)
WARNING - ForceBeamColumn2dThermal::update - failed to get compatible element forces & deformations for element: 2(dW: << 342.186)
Domain::update - domain failed in update
LoadControl::update - model failed to update for new dU
WARNING NewtonRaphson::solveCurrentStep() -the Integrator failed in update()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 81 with domain at load factor 0.82
OpenSees > analyze failed, returned: -3 error flag

C:\Users\Walker Maddalozzo\OpenSees>

Any help would be greatly appreciated.

This error, or something like it has occurred in many of the example heat scripts that I have DL and ran from the OpenSees for fire page, so it might be linked.

heatbeam.txt

Thanks,
Walker

[MianZhou]

They are warning messages. At step 0.81, the beam has reached over 810 degrees. Why not compare your results with the mid span deflection plot from the website. Best wishes, Mian

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________________________________ From: Walkermaddalozzo <notifications@github.com> Sent: 03 July 2018 00:59:01 To: OpenSeesforFire/openseesforfire.github.io Cc: Subscribed Subject: [OpenSeesforFire/openseesforfire.github.io] A simply supported beam subjected to standard fire (#9) Hi, I wanted to run this script found at http://openseesforfire.github.io/Subpages/simply_beam.html ,the "Downloading the Example package here" link is dead so I just copied the script directly into new .tcl file "beamheat.tcl" which I have uploaded here. The scrip runs to the 81st iteration and then quits leaving this message: 0.81 CTestNormUnbalance::test() - iteration: 1 current Norm: 13459 (max: 0.0001, Norm deltaX: 8.68088e-13) WARNING - ForceBeamColumn2dThermal::update - failed to get compatible element forces & deformations for element: 1(dW: << 342.186) WARNING - ForceBeamColumn2dThermal::update - failed to get compatible element forces & deformations for element: 2(dW: << 342.186) Domain::update - domain failed in update LoadControl::update - model failed to update for new dU WARNING NewtonRaphson::solveCurrentStep() -the Integrator failed in update() StaticAnalysis::analyze() - the Algorithm failed at iteration: 81 with domain at load factor 0.82 OpenSees > analyze failed, returned: -3 error flag C:\Users\Walker Maddalozzo\OpenSees> Any help would be greatly appreciated. this error, or something like it has occurred in many of the example heat scripts that I have DL from the OpenSees for fire page, so it might be linked. heatbeam.txt<https://github.com/OpenSeesforFire/openseesforfire.github.io/files/2157176/heatbeam.txt> Thanks, Walker — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#9>, or mute the thread<https://github.com/notifications/unsubscribe-auth/ASlvFXNE7L2-RBs1mcVfZgWq2hsVlyKGks5uCrPFgaJpZM4VAGRk>.

[Walkermaddalozzo]

Hi Mian,

Thanks for responding. I cannot compare between the data and the plot because all the outputs are blank.

[MianZhou]

Type in “wipe” in the cmd window after the analysis stoped Cheers

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________________________________ From: Walkermaddalozzo <notifications@github.com> Sent: 03 July 2018 04:55:57 To: OpenSeesforFire/openseesforfire.github.io Cc: Mian Zhou; Comment Subject: Re: [OpenSeesforFire/openseesforfire.github.io] A simply supported beam subjected to standard fire (#9) Hi Mian, Thanks for responding. I cannot compare between the data and the plot because all the outputs are blank. — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#9 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/ASlvFWb7mGBIoFlRXq58_c-18uEu2mDzks5uCutNgaJpZM4VAGRk>.

[Walkermaddalozzo]

I cannot because the script goes quickly to step .8 then pauses and then displays error message above and then opensees crashes. This happens for most thermal scripts. Is it an issue with my computer? is the script the issue?

[MianZhou]

Instead of running opensees.exe by double clicking, run Opensees from Windows cmd prompt. I can run the script of yours with no problem. From: Walkermaddalozzo [mailto:notifications@github.com] Sent: 03 July 2018 16:32 To: OpenSeesforFire/openseesforfire.github.io <openseesforfire.github.io@noreply.github.com> Cc: Mian Zhou <Mian.Zhou@brunel.ac.uk>; Comment <comment@noreply.github.com> Subject: Re: [OpenSeesforFire/openseesforfire.github.io] A simply supported beam subjected to standard fire (#9) I cannot because the script goes quickly to step .8 then pauses and then displays error message above and then opensees crashes. This happens for most thermal scripts. Is it an issue with my computer? is the script the issue? — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#9 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/ASlvFTLPeTIbRGVWOCo2PumgbLxsfLGSks5uC46CgaJpZM4VAGRk>.

[Walkermaddalozzo]

That is how I have been running OpenSees. I have emailed you a video showing you the process. I sent it to Mian.Zhou@brunel.ac.uk

Thanks