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RE: IBC 2003: Section 1603 - Construction Documents

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Title: IBC 2003: Section 1603 - Construction Documents

We've been involved recently in preparing design-build documents for soil-nail retaining walls.  We show all the design criteria and schematics with the final design by the soil nail wall contractor's engineer.  We remain overall engineer of record with the contractor's engineer responsible for the detailed engineering (needless to say, the contracts for this have to be very carefully and legally thought out.)  Our drawings cover the design criteria and schematics which are submitted for permit, with the contractor's engineer's drawing submitted later for issuance of permit.  Local building authorities have been good at accepting this, with the final-soil nail wall design being accepted as a deferred submittal.  It works for us because of the cooperation of the local building authorities.

 

In double checking your post, I realize the building code doesn't regulate soil-nail walls in nearly the detail that it does buildings so maybe that's why it works for us.

 

Good luck Bill 'n tell us what you ultimately do.

 

Bob Garner, S.E.

 


From: Polhemus, Bill [mailto:bill.polhemus(--nospam--at)tyson.com]
Sent: Thursday, June 02, 2005 1:50 PM
To: seaint(--nospam--at)seaint.org
Subject: IBC 2003: Section 1603 - Construction Documents

 

I'm finishing up a building sheet to go out for bid, showing an open-wall PEMB--really, it's a shed, but a really BIG shed.

I opened the IBC to verify what sorts of information needs to be included on such a drawing, and came across the following:

1603.1 General. Construction documents shall show the size, section and relative locations of structural members with floor levels, column centers and offsets fully dimensioned…

It gives an EXCEPTION to "buildings constructed in accordance with … conventional light-frame construction…" (i.e. Section 2308, which pertains to wood framing).

Going to the Definitions on page 13, we find that Construction Documents are essentially the drawings and specs, etc., "necessary for obtaining a building permit."

Now my question is this: Since this is to be a PEMB designed by others, am I also exempt from the requirement to show "size" and "section" of structural members? Because of course that determination will be by the PEMB manufacturer selected by the Contractor.

In the past, I've always included information such as the Wind and Seismic criteria, the live loads, etc., on this type of drawing so that it is designed consistent with what I, as EOR, think proper. But am I in violation of the Code if I don't also include ALL the information described above?

 

I guess one out would be that my drawing is NOT the "construction document" to which the code refers since the building won't be erected according to my drawing, only designed. The PEMB supplier will handle the design and the construction drawings.

But if I'm not mistaken, my drawing WILL be the one used to obtain the Building Permit.

As I sit here right now, it looks as though some clarification ought to be made here, perhaps adding PEMBs to the category of "Exception" alongside conventional light-frame construction.

Any thoughts?



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