I am a structural engineer and I was recently asked to perform a preliminary structural condition assessment of a residential home. The owner was primarily concerned after a tempered glass window fractured. I did not find any evidence that the glass fractured due to a structural issue...
As discussed, the moment capacity of any connection will depend on the magnitude of the loads being applied. For any significant loading, the connection you show will allow rotation (Top Flange not restrained, prying action of flanges at welded connection, etc.). See attached sketch for...
TEDstruc, based on your sketch, it appears you have a Complete-Joint-Penetration Single-Bevel-Groove Weld at the bottom plate connection to the support. This connection could be modeled as a fixed connection to the support for the bottom plate only. To clarify, from a constructability...
I see you are concerned about side-face blowout. ACI 318-11 Section D.8 & RD.8 discusses this issue and addresses it by specifying a minimum edge distance for cast-in anchors (4*da for cast-in anchors that will not be torqued, and 6*da for cast-in anchors that will be torqued, where da is the...
Thanks for the picture. I didn't realize you had anchor bolt chairs. I think these are your options:
1) Anchor bolt repair: Use mechanical couplings or weld stud extensions. This would require properly identifying and removing the limits of corrosion/damage and having enough anchor bolt...
I've replaced existing equipment, vessels and even buildings in the past and was able to reuse the existing foundations with minimal modifications. However, I've never "won the lottery" and have been able to reuse the existing anchor bolts. Most of the time the new equipment, etc. had...
I agree, the cracking in the foundation appears to be cosmetic and likely due to normal contraction/shrinkage during concrete curing or due to temperature changes. See ACI 360R-10: Guide to Design of Slabs-on-Ground for additional information. In general, steel reinforcement in concrete...
