Steel X-section properties on AISC
Steel X-section properties on AISC
(OP)
I was wondering how AISC rounded their numbers from decimal to fraction to 1/8" increment? I am trying to set up an excel spreadsheet to help with steel shop drawing process. I linked the spreadsheet to Steel x-section property table provided by AISC (depth, web thickness, flange width etc.) The list only has decimal #s. So for example, a W10x22 is 10.2" deep according to AISC. Now if I round it to the closest 1/8 (using mround command on excel), it rounds it to 10 1/4". The manual however says it is 10 1/8".
10.25 is closer to 10.2 compared to 10.125. Do you know why their rounding is not very consistent?
10.25 is closer to 10.2 compared to 10.125. Do you know why their rounding is not very consistent?
Never, but never question engineer's judgement






RE: Steel X-section properties on AISC
RE: Steel X-section properties on AISC
Never, but never question engineer's judgement
RE: Steel X-section properties on AISC
This is a debate we have with our section properties database. It contains the values from the 9th edition manual, which don't necessarily correspond to the current manual values. Do we dumb our values down to match the current manual, or do we keep the more "correct" values with more significant digits?
RE: Steel X-section properties on AISC
You have a look up column - Say W10x22(characters) and the second column is 10.2''(decimal) while the third is 10 1/8''(characters)
I have done this on many similar databases or spreadsheets and I didn't invent this idea - I copied it. It is a pain - but once done - it works.
RE: Steel X-section properties on AISC
Never, but never question engineer's judgement
RE: Steel X-section properties on AISC
Never, but never question engineer's judgement
RE: Steel X-section properties on AISC
RE: Steel X-section properties on AISC