Home › Forums › NextFEM Designer support forum › Apply Fire Load
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June 22, 2019 at 2:56 pm #2486
IMAN MANSOURI
ParticipantHi,
I followed the video of fire analysis of the I-section.
When I want to apply a “Point Load” and click the “Temperature” the load case is blank and the defined fire curve does not appear (please see attached photo).Could you please help me?
Thank you so much.
Attachments:
You must be logged in to view attached files.June 22, 2019 at 3:03 pm #2488IMAN MANSOURI
ParticipantHere I attache the file…
June 22, 2019 at 4:28 pm #2489NextFEM Admin
KeymasterYes, tutorial has been made with v1.4 – it will be out in a few days.
June 24, 2019 at 11:55 am #2530NextFEM Admin
KeymasterVersion 1.4 is out, please reinstall and retry.
June 25, 2019 at 6:09 am #2535IMAN MANSOURI
ParticipantHi,
Thanks for providing the new version :)
Can we apply a desired/especial fire profile to the section? If so, how?
And in the tutorial video, only the nodes of bottom edge was exposed to fire. Is there any particular reason for this? I think in the realistic fire, we apply temperatures to all faces of the section; right?Good luck!
June 25, 2019 at 8:18 am #2537NextFEM Admin
KeymasterHello,
strenght under fire of the section is controlled by conductivity and specific heat – you can always add another layer for fire protection with different properties. There’s a sample here (in Italian): https://www.nextfem.it/it/analisi-termica-di-sezioni-in-c-a/In the tutorial, we supposed the bottom edge was the only one exposed. This is a typical situation for a beam. For columns, all edges are exposed. You can apply fire on any edge.
June 25, 2019 at 10:27 am #2545IMAN MANSOURI
ParticipantHello,
Thanks for your support.
I am going to apply a fire profile according to Eurocode 3 relations corresponds to the following fuel load, opening and thermal properties of enclosure: qtd=160, O=0.032, b=1000.
Sorry I could not understand how should I import it in NextFEM. Could you please guide me?June 25, 2019 at 11:00 am #2546NextFEM Admin
KeymasterFrom Edit / Functions…, pick the series you want to add from Add new series menu.
Then click on Add in the “Series Tools” box, and again Add button in the “Add Function by points” box.The function must be associated to the HT analysis in Assign/Analysis settings.
Hope this helpsJune 25, 2019 at 11:04 am #2547NextFEM Admin
KeymasterSee this sample.
Attachments:
You must be logged in to view attached files.June 25, 2019 at 2:08 pm #2549IMAN MANSOURI
ParticipantThanks!
June 26, 2019 at 1:28 am #2570IMAN MANSOURI
ParticipantHi,
How can we save the history results of heat transfer analysis of the section (save at each time)?
Is it possible to save a txt file (time-temperature)?June 26, 2019 at 9:18 am #2571NextFEM Admin
KeymasterExtract data/Nodal temperature for now does not allow to get temperature series over time, but it can export for the same time all nodes. This feature proposal will be inserted in the list for the next patch.
June 26, 2019 at 3:46 pm #2572IMAN MANSOURI
ParticipantMany thanks for your support.
Excuse me, in the heat transfer analysis of a section how can we consider the effect of fireproofing or no-fireproofing?June 26, 2019 at 3:50 pm #2573NextFEM Admin
KeymasterSimply add a “layer” (made with some elements) with other caracteristics, representing the fireproofing.
June 27, 2019 at 1:58 am #2585Sepide Arian
ParticipantThis is also my question. Could you please provide more details about adding the layer, schematically?
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