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Re: Plywood rigid diaphragms

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Where does the .005H limitation come from ?

-----Original Message-----
From: ErnieNSE(--nospam--at) <ErnieNSE(--nospam--at)>
To: seaint(--nospam--at) <seaint(--nospam--at)>
Date: Saturday, August 29, 1998 11:45 AM
Subject: Re: Plywood rigid diaphragms

>Michael Cochran says:
>"Los Angeles has adopted a new voluntary ordinance called Division 93:
>Voluntary Earthquake Hazard Reduction In Existing Wood Frame Residential
>Buildings with Soft, Weak or Open Front Walls.   In this ordinance, you are
>required to calculate shear wall deflections to show that the deflection is
>less than .005H.   The shear wall deflection equation is from the UBC