×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Diagonal sheathing
2

Diagonal sheathing

Diagonal sheathing

(OP)
IBC 2006 is governing code.  It appears that diagonal DF sheathing is allowed and it will make my required value.  Where could I find construction details?

RE: Diagonal sheathing

Try IBC 2304.9

I don't have time to verify that - but that's where it should be - if it exists...

RE: Diagonal sheathing

NDS 2005 Wind & Seismic Supplement

4.2.7.2 for Diaphragms
4.3.7.5 for shear walls

RE: Diagonal sheathing

SperlingPE

Section 2306.3.3 through 23063.5 & Table 2306.3.3 outline the details and shear capacities for diaphragms and 2306.4.2 addresses shearwalls.

But, if this is new construction I would suggest that you use wood structural panels (Plywood or OSB). The panels cost less for materials & labor for the same allowable strength and provide more structural integrity to the overall lateral force resisting system.

RE: Diagonal sheathing

(OP)
thanks for all the responses
I am acquainted with the capacities for shear walls and diagonal sheathing and the associated tables.

I am looking for construction details.  Maximum spacing on the studs for the diagonal sheathing.  Or are you telling me the diagonal sheathing construction requirements are the same as for panels?

The 1x8 sheathing is going in per architect.  I was hoping to not have to back the 1x8 with plywood.

RE: Diagonal sheathing

SperlingPE

I suggest that you review the write-up in Section 4.3 Wood Shearwalls in the AF&PA's Special Design Provisions for Wind & Seismic Supplement. I only have the 2001 Edition but in section 4.3.7.5 it notes that diagonally sheathed single layer of lumber shearwalls are permitted in Seismic Design Categories A,B,C & D. I don't see anything about stud spacing with this layout of diagonal sheathing.

I think that you can get to a pdf of the Supplement from the AF&PA's web site which is www.awc.org

I hope that this helps.

RE: Diagonal sheathing

Stud spacing is usually 16'' for bearing walls - 24'' allowed for non-bearing...If I remember correctly.

RE: Diagonal sheathing

I believe tghat the old "Douglas Fir Use Book" has diagonal sheathed diaphragm values too.  

Mike McCann
MMC Engineering

RE: Diagonal sheathing

The Fourth Edition of the "Western Woods Use Book" has information on the use of board sheathing to resist lateral loads.  The information is in the earlier editions of the WWUS, as well as in the "Douglas Fir Use Book".

If you can't locate a copy of the WWUB, you could contact the Western Wood Products Association for information.

RE: Diagonal sheathing

Yep - pages 273 and 274 of the Douglas-Fir Use Book.

Mike McCann
MMC Engineering

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources