Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Masonry shear walls

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Thanks.  Consider it posted.

What is BCRMS?

Thanks for your opinion.  That's what I think too.  I wish the Code was more clear.  (Chisel that on my headstone.)


Subject: RE: Masonry shear walls
From: "Foy, Warren" <Warren.Foy(--nospam--at)>
To: <seaint(--nospam--at)>

Considering that section 2106 is titled Seismic Design, I interpret the
1.5 to be applied to only seismic forces.

Warren Foy

Subject: RE: Masonry shear walls
From: "Petaja, Matt S" <Matt.Petaja(--nospam--at)>
To: <seaint(--nospam--at)>

...when design against "shear or diagonal tension stresses."  This does
not include design against bending (fb) or compression (fa).  I think
they are taking eqn. 2-25 from BCRMS, assuming shear reinforcing is
provided based upon detailing requirements of BCRMS 1.13.6.  Please post
the results for all to see.  Thanks.


-----Original Message-----
From: Michael L. Hemstad []
Sent: Thursday, July 14, 2005 9:57 AM
To: seaint(--nospam--at)
Subject: Masonry shear walls

IBC 2000, in 2106.1.2.4, says "When calculating shear or diagonal
tension stresses, shear walls that resist seismic forces in Seismic
Design Category D, E, or F shall be designed to resist 1.5 times the
forces required by Chapter 16."

I had taken that to mean 1.5 times the seismic force, or 1.0 times wind,
whichever governed.  After al, being in SDC 'D' doesn't change how the
wall is loaded by wind.  But, upon re-reading, it seems to say pretty
clearly 1.5 times ANY force from Chapter 16.  Any help or advice on this

As I'm in Digest mode, I'd appreciate a direct response.


Michael Hemstad, P.E. =20
Saint Paul, Minnesota
Michael Hemstad, P.E.  
Senior Registered Engineer
Facilities Division
    phone: 651/292-4468
    fax: 651/292-0083

1500 Piper Jaffray Plaza
444 Cedar Street
Saint Paul, Minnesota 55101-2140

******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at:
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*   Questions to seaint-ad(--nospam--at) Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: 
******* ****** ****** ****** ******* ****** ****** ********