1. Since equation 30.11-1 defines velocity pressure qh at the mean roof height h, I would consider this to be the mean roof height of the main structure that the canopy will be attached to.
2. My interpretation of Figures 30.11-1A & 30.11-1B are that they are split into several different cases...
I agree with KootK on the worst case design scenario. I've only done a few steel column-to-beam connections with wide flange shapes, so things are a little different with a pipe column. But take a look at AISC Design Guide 4 and Design Guide 16 as references. They have some good information on...
Seems like the architect needs to get a better idea of what is going on in the building. My approach would be to discuss with them what types of equipment (if any) will be used in the building, and then calculate reinforcing and thickness based on equipment wheel loads. Maybe get the architect...
structee:
Per ACI 301-10 section 5.3.6.1: "Unless otherwise specified or permitted, cure concrete in accordance with 5.3.6.2 or 5.3.6.3 for at least 7 days after placement. Unless otherwise specified, cure high-early-strength concrete for at least 3 days after placement." Take a look at ACI 301...
Do you have data on the reinforcing for the existing foundation? If so, I would check out Hilti's post-installed reinforcing guide. Theoretically, you should be able to epoxy and lap new bars with the existing. You can then calculate capacity of the foundation as if it were new using the...
Perhaps I'm not experienced enough to grasp this situation, but what exactly does placing the insulation between the concrete and the metal deck achieve? What prevents you from placing insulation on the underside of the metal deck? As the others have said above, I think crushing may be an issue...
I would consider adding a few drilled holes in the base of the embedded pipe (say at 4" or 6" from the bottom) to ensure the grout will be inside of the pipe. That'll add some additional pullout strength by actively engaging more of the grout, not just in shear friction between the grout and the...
If you will have no restraint at the free end of the cantilever, I would amend my original post to agree with JAE, and use the appropriate effective length factor. I would also like to mention that, per AISC Section J10.7, unframed end of beams and girders require a pair of full-depth stiffeners.
Can you verify the end conditions you are showing in your free body diagram? If the ends are restrained against both rotation and translation (i.e. fixed), you will require moment connections at both points. And the free body diagram you have drawn, along with the moments calculated, will not be...
blavery:
In my experience, concrete mix design is typically something the contractor and the concrete supplier work through themselves (e.g. means and methods). Not sure how it is in your area, though. We would consider something of this size to be "mass concrete", which would bring into effect...
