New twist. I ran this by the a former plans examiner and he pointed out the following.
714.2.1 Individual protection.
Columns, girders, trusses, beams, lintels or other structural members that are required to have a fire-resistance rating and that support more than two floors or one floor and roof, or support a load-bearing wall or a nonload-bearing wall more than two stories high, shall be individually protected on all sides for the full length with materials having the required fire-resistance rating.(Beams support one floor only therefore do not have to be fully encased) Other structural members required to have a fire-resistance rating shall be protected by individual encasement, by a membrane or ceiling protection as specified in Section 711 ( the one-hour floor/ceiling assembly provides the required protection for the beam, hangers and I-joist), or by a combination of both. Columns shall also comply with Section 714.2.2.
So my gut reaction that this was okay has been backed up with the code.
Now the delima, brudgers I want your opinion from the design side, Do I tell the Arch the fire proofing of the beam is not required by code or let the original design stand and just answer the original question about the fire proofing of the joist hangers. I like the idea of the extra protection on the beam and going above the code but I also understand the importance of bringing a job in within budget and trying to save cost. Normally I do not question an Arch who specs designs above code minimums but this is a big ticket item.