I have determined that the max span I need for part of my building without support is 30' This requires 14" wood I beams placed 12" o.c.
I just looked at the framing drawing for it and see that the first floor has all the joists running from foundation wall to foundation wall with no apparent support shown.
If I upgrade to CAx8, will this be done automatically, or do I need to manually add posts and support beams beneath the joists?
From my experience, 14" I-Joists 12" O.C. won't work on that span unless it's attic space or something.
On a wide open floor with no bearing walls or roof bracing on this joist in the span, It would take like a 3.5" flanged 16" I-joist 12" O.C. If your foundation isn't a basement, I'd put a girder with piers through there like a crawlspace. Then you could use 11-7/8" I-Joists 16" O.C. if there's no load bearing walls on the joists. I'm no engineer but this should work.
Max span for floor joists
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From my experience, 14" I-Joists 12" O.C. won't work on that span unless it's attic space or something.
On a wide open floor with no bearing walls or roof bracing on this joist in the span, It would take like a 3.5" flanged 16" I-joist 12" O.C. If your foundation isn't a basement, I'd put a girder with piers through there like a crawlspace. Then you could use 11-7/8" I-Joists 16" O.C. if there's no load bearing walls on the joists. I'm no engineer but this should work.