Alt Vignette - comments please!

[ad2011]

Here's my solution for the Alternate using the NCARB program.
I located the Clerestory Window on the south wall of the Cafeteria.

A couple of questions:

1. I added a set of columns and beams at the middle of the Waiting Room space. because without this the Joist span would have been 30'-4" (slightly above the forum recommended 30' max). Is this appropriate? I wasn't sure if it was worse to extend the Joist span by 4" or to use more Columns/Beams. I figured the latter would be safer.

2. Is a beam required at the Window Wall on the Lower Level framing plan?

thanks in advance for any thoughts.

[ad2011]

If anyone has any comments or answers to my questions, I'd really appreciate it!

[ad2011]

Here's my second pass at this Alternate.

[Coach]

Is this appropriate?

No.

BTW, the span is not 30'-4".

[ad2011]

what is the span then?

I think I addressed the span issue by changing the beam-joist orientation in the second try. Any issues with this version?

[Coach]

what is the span then?

Span is face of bearing to face of bearing.

I think I addressed the span issue by changing the beam-joist orientation in the second try. Any issues with this version?

There's no reason to break up the spans. Turn the joists.
You can go up to 35' without worry.

[ad2011]

thanks Coach.

one more question.
If I had kept the orientation from my first pass, would it have been ok to have a Column in the center of the Waiting Room (i.e., not inside a wall)?

[fss106]

no, don't place any columns that aren't in a wall.

[ad2011]

thanks fss106!

[Coach]

If I had kept the orientation from my first pass, would it have been ok to have a Column in the center of the Waiting Room (i.e., not inside a wall)?

Read the program again.