All these comments are good, but it leaves the problem that AISC recommends that the fabricator "detail" while the engineer maintains responsibility. I would like to see some movement to have them clean up this discrepancy so we all know what to expect when we submit and receive a set of...
In the past we have had drawings and specifications noted requiring seals on shop drawings and calculations. We then receive shop drawings with out seals or calculations. After we reject the shops, we get a full court press from the contractor, architect, and fabricator to accept the shops...
It is my understanding that it is appropriate for an EOR for a structure to provide design information to another licensed engineer who would act as a "specialy EOR" for the design of a component of the structure. The review of the shop drawings is to ensure that the specialty EOR interpreted...
Some further information. PCI uses a coeficient of friction of 0.4 for concrete to steel. That is for hardened concrete placed on steel. See table 6.6.1 in the PCI design handbook.
From reading the AISC standard of practice it appears that the industry would like the design engineer of record to provide basic geometry and load information to the steel fabricator so that the fabricator can use their experience to provide the most cost effective connection. However, the...
I think the 0.7 number is for concrete placed against steel. I have seen numbers of 0.45 for hardened concrete against steel such as will precast panels supported on steel beams. Has anyone seen other numbers?
