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Time-dependent thermal loads #132

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mcoar opened this issue Feb 17, 2020 · 0 comments
Open

Time-dependent thermal loads #132

mcoar opened this issue Feb 17, 2020 · 0 comments

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@mcoar
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mcoar commented Feb 17, 2020

Hello, I am looking for help on applying time-dependent thermal loads on steel members using a text file as input.
I have been using the following syntax to do this:

define time series

thermalFile = 'steel1b_1.txt' # text file column of thermal values
dt = 60. # time step in seconds
thermalSeries = 200 # a tag for the timeSeries
timeSeries('Path',thermalSeries,'-dt',dt,'-filePath',thermalFile,'-factor',1) # '-factor' is a multiplier for the thermal file

define load pattern

patternTag = 451 # tag for the thermal load pattern
pattern('Plain', patternTag, thermalSeries) # a plain pattern that uses the thermal time series
Tbeam = 1. # another load factor from the load pattern to the actual load on the elements
eleLoad('-range',beam_range2[0],beam_range2[1], '-type', '-beamThermal', Tbeam, -Fl5BeamDepth/2, Tbeam, Fl5BeamDepth/2)

l was wondering if this method is equivalent to the fire load pattern in TCL opensees as demonstrated on page 28 of this slideshow. https://openseesforfire.github.io/Download/OpenSees_Webinar.pdf

I'd prefer to apply these loads using the fire load pattern but it doesn't seem like the fire load pattern is implemented in openseespy yet.

Thank you!

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