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"Rob Munach" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
Chuck wrote:
"Rob Munach" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
Does anyone know of a standard document produced by ASCE, AISI etc. that list the responsibilities of the Engineer of Record.
For example: I do a lot of metal stud design for commercial buildings. Generally on these jobs, the EOR has listed in his specifications that the metal studs be designed by the stud installer or stud supplier. Typically, the EOR also has a third party designing the roof trusses. It has always been of my opinion that the EOR is responsible for the overall stability of the structure. If he intends to have third parties design collector trusses, truss heel blocking or shearwalls, for instance, then he must CLEARLY indicate on the structural drawings the magnitude and location of where he intends to dump out his roof diaphragm loads.
I am constantly in a situation where the EOR is trying to shove this responsibility my way. This behavior seems to be common in our area and reprehensible, in my opinion. As such, I would like to have a standard document written by governing body that I can give to EOR’s when I am in this situation.
Thanks,
Rob Munach
Robert;
I have done many projects of which I spec light gage systems be designed
by
the manufacture, as well as, not only wood trusses but steel trusses
also.
I only request that the manufacturers' engineer be responsible for the vertical load on the trusses and I specify what the loadings are in the contract documents. Similar for light gage material, I only request the manufacturers engineer to be responsible for the forces that they
usually
provide in there catalogs i.e. veritical stud loads, lateral loads as indicated in the applicable code, lintel loads, and joist loading, connections etc. If it is something special I usually design and detail
the
element. Over all structural responsibility is of the engineer of
record, w
ho by the way better check the calculations and shop drawings submitted
to
the engineer of record for review. We usually design the entire lateral force system including the
diaphragms,
collectors, shear walls, braced frames or moment frames. By the way there are manufacturers out there that design seismic
specific
resisting systems for buildings. Since this is in direct relation to
the
overall structure they are usually included in the design process as consultants. The contract, either through the owner or with the
engineer of
record, will state that they take respsonsiblity for the system they provide.
Chuck...
Thanks, Chuck. I also have speced projects like that and I too am always responsible for the stability. I can't understand how some of the engineers around here don't get it! You ought to see what happens when an Architect is acting as the EOR! When I ask them about the need for collector trusses or the locations of shearwalls they act like I am talking Chinese (not that there is anything wrong with that)
Oh sure, now you tell us the rest of the story! I see that happening from time to time. It's usually related to saving money, time or both for the owner and ends saving neither.
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