Recent content by beam4u

the connection has shear (lateral AND withdraw. As I recall the is adjustment factors for these combined anyone know where to find?

So the "collar tie" is acting as a ceiling joist?? I've done this many times - if this is the case I think you'll be surprised by the connection requirement. f

Using LVL's for rafters is rather expensive. TJI's might me less expensive. Here in the southwest, they use a purlin near midspan transferring some load to the ceiling joists. In either case an analysis seems appropriate. f

Check out AISI S213-07. They might have some guidance on metal panels taking shear. f

I recently evaluated an existing GLB that is undersized. There are some limitations as far as reinforcement of the situation, but the easiest fix might be to add a post (it is a floor over a garage). In all likelihood since the original beam was clear span it is a V4 beam. As a two-span I would...

WARose - you still have RISA to look at a model??

OK - will proceed accordingly. Thanks again WARrose

WARose - much appreciate the help. I should get familiar with the spring constants on RISA............... here is a really quick sketch...........sizing is big for the "look" the owner wants https://res.cloudinary.com/engineering-com/image/upload/v1494445193/tips/Scanned39_o0szxw.pdf

WARose, slab is 5" and I don't have software for FEA unless there's a way to trick RISA. f

thanks Dik, but slab is already in. Trying to avoid saw-cutting a perfectly good slab for a 4K load. f

I've looked at point loads and walls at/near a free edge, but now I have a client who wants to build a small Ramada on an existing slab. The max load is small (<4000#'s)and I've checked punch and uplift/pull out, but with Ringo and Anderson's procedure I'm getting irregular results. The column...

Thank you - that's what I needed.

I have a very small mezzanine that needs lateral (seismic) and the GC wants to use metal studs (actually started with wood framing). I used the drywall to "wood" stud capacities in SDPWC Table 4.3C and when we switched to metal studs I figured the capacity would be similar - boy did I get yelled...