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plan irregularity type 4 - 97 UBC[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: plan irregularity type 4 - 97 UBC
- From: "Mark Baker" <shake4bake(--nospam--at)earthlink.net>
- Date: Tue, 21 Jan 2003 16:21:16 -0800
I don't know how many times I have dragged myself through this, decided I am correctly interpreting the application of omega, then 2 months later a plan checker argues my interpretation resulting in my going through it all again.
Out of plane offsets of wood shear walls..... upper wall supported by beam in floor, floor diaph. transfering load to offset walls below.
The easiest way to summarize my question to the list is this:
In this load path, where does omega get applied, feel free to put yes/no behind the following items:
1. Apply omega to connection transfering lateral force from wall above to beam.
2. Apply omega to hold down connections of upper wall to beam and beam to columns.
3. Design beam for omega level force from hold downs (overturning) and compression (shear force).
4. Diaphragm force (keep in mind that diaphragm to be designed for Fpx load plus load input from wall above (1633.2.9 item 2)
4a. Apply omega to Fpx?
4b. Apply omega to load from wall above?
5. Apply omega to shear walls below diaphragm (dependant upon awnser to 4a & 4b)?
I would love to have a building official response but don't let that discourage everyone else from their input. Ben Yousefi, are you out there?
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