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RE: UBC Eq. 30-1

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Curt,

The dead load helps you to resist overturning/uplift. This factor takes
away from that contribution. It is in addition, but Ev is upward and DL
is downward.

-gerard

-----Original Message-----
From: LaCount, Curt [mailto:Curt.LaCount(--nospam--at)jacobs.com] 
Sent: Wednesday, September 11, 2002 3:33 PM
To: Seaint (E-mail)
Subject: FW: UBC Eq. 30-1

Gerard,

I think that Ev is only used as an addition to the dead load and not a
reduction.  The reduction of dead load is another factor in a different
section and is limited to cantilevers and prestressed members.  For
those of you using ASD, Ev can be ignored.  


Curt La Count
Jacobs Engineering
Portland, OR

-----Original Message-----
From: Gerard Madden, PE [mailto:gmadden(--nospam--at)attbi.com]
Sent: Wednesday, September 11, 2002 1:41 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: UBC Eq. 30-1


Ev is only used in non-working stress design. It is a reduction factor
for dead lead and acts Upward. SO combine this term with your DL and
you'll get something smaller than 0.9D in your load combo.

-gerard
Santa Clara, CA

-----Original Message-----
From: RainCat1(--nospam--at)aol.com [mailto:RainCat1(--nospam--at)aol.com] 
Sent: Wednesday, September 11, 2002 1:18 PM
To: seaint(--nospam--at)seaint.org
Subject: UBC Eq. 30-1

In the UBC Eq. 30-1 E=rhoEh + Ev, what is the direction for Ev?
Are we suppose to combine numerically the expressions rhoEh & Ev?
Thanks!

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