Yeah, the bolt bending is a killer.
If you can't weld washers, can you oversize the holes even more (or provide a port from the bottom) and inject epoxy or grout to get positive shear engagement at all anchors?
I agree with Rod, you ought to be able to count on some shear transfer through...
Yeah, I'd certainly set two lower limits of 5psf wind or 2% DL. Whether a higher load is appropriate depends a lot on the enclosure (and scale?) of the larger building
Craig beat me to it. Don't discount the stabilizing effect of a heavy load.
And it's hard to get a static friction coefficient less than 0.1, even in wet conditions.
A doubled web would be unusual, but otherwise your cross section is likely true.
If I presume a common 7/8" rivet, it looks like maybe a 72" tall web, L8x8x3/4" flange angles, 18"x3/4" cover plates.
Then stiffened up the wazoo! Although many of those would be neglected for basic load rating...
Anaheim --
Realistically what happens is that the thermal expansion does in fact generate that large overturning moment -- your effective breadth of the foundation diminishes significantly, and you apply a significant pressure to that reduced bearing area.
Right up until the point that the...
If you really need to capture 3D geometry of your structure, RISA may not be the best option. Solid elements are available, but I get the impression that they are not as user-friendly as other softwares that are built with 3d solid structures in mind.
If a 2D slice of the structure is suitable...
I think the transport is the challenge there HTURKAK.... but maybe not, if not concrete they'd have to get the water or rocks out to site.
Agreed that the concept is viable from a structural and geotechnical perspective (we use concrete "deadman" blocks all the time).
Oh, the effect is entirely sensical:
The girders were presumably uniformly cambered, without consideration of the deck placement sequence.
The girder directly under the joint was originally loaded with only half of it's tributary width of wet concrete. As such, it deflected downward less than...
there's a sketch of one way to build it here:
https://www.eng-tips.com/threads/connection-between-oil-containment-slab-and-transformer-foundation.479554/
Although I've typically seen it as a monolithic foundation (in two pours). First, a flat slab is poured which will be the base of the...
This feels rational to me. KootK and Cliff's concern about concrete consolidation are going to be most pressing in shallow depth slabs. Beam column joints, while more congested, are also naturally going to get more attention for consolidation
Yep, might have been nuked in the forum migration, and E-T doesn't want .dwg files uploaded now.
If you find me at gmail, I can share the original (spent company time on the refresh, so that's unfortunately off limits). User beware, no guarantee against grumpy state board members, etc, etc.
I don't carry Illinois, so I don't know all their guidelines. Many boards may not be fans of a combined stamp and signature file due to concerns about control of the seal.
https://licensestamps.com is an instant option.
I just use a CAD file with all of the states stamps (was shared on this...
