Jar:
Given your twitter like brevity, what comments, by whom? That looks like just another way to skin the same cat. But, the engineers didn’t really give you this printout did they, they licensed the program to you, with some instructions about how to use it, and with some disclaimers too, right? Is there some mysterious difference btwn. pages 1 & 2 of your attachment, I couldn’t find any?
I keep screaming for a full accounting of the loads on that girder, so far we have the 1st fl. DL (10#/sf) and LL (40#/sf) on two 10' long simple span joists framing into that girder for a 10' tributary width, leading to a 500#/ft. uniform loading on the girder; the joists are not 20' long and continuous over the girder; and there are no partitions, 1st fl. opening jamb loads, no ceiling, attic, or roof loads being added to that beam; and I doubt that. Without seeing the plans and having some real involvement in the project, or sufficient experience working with that builder so I know the quality of his work and how he interprets what I tell him to do, I don’t know if I’m getting the full story, and I do know who’ll be hung out to dry if things go wrong. Because your very own statement, “This is what the “engineers” gave to me.” would me misinterpreted. I’ll usually give my opinion and general guidance on the problem, as best I understand the word picture that you have presented, but I just can’t (won’t) do real engineering over the internet.
As to your printout, I don’t particularly like the format either, but could probably get used to it after using the program for a while. I would like to see what you input, it looks like all the answers are there, but I want to study them a bit more before commenting. That is usually the case with any of the programs or spreadsheets out there, you have to use them often enough to get comfortable with the input and output format, and what you can expect from them. Also, their limitations, exceptions and the like must be kept constantly in mind when using them. Your’s or DRP’s might not be exactly the way I’d write the program, or the input or the output, but we should all get basically the same answer to a given problem. So, now we have the IRC tables for joists and girders, we have DRP’s spreadsheet, and we have your BeamChek v2010 program which purports to comply with NDS 2005, which I don’t have a copy of, but I think I can muddle through, if you guys give me a clue now and then. I suggest you use your program, just as I did Jobsaver, to work out a few of the tabulations in the IRC joist and girder tables, and lets see how they compare and if we can explain any differences.