×
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

Construction adhesive in wood shear walls

Construction adhesive in wood shear walls

Construction adhesive in wood shear walls

(OP)
I am in the process of desinging a 4 storey wood condo building in a low seismic zone and I am questioning the shear wall design we have used in the past.  

On past projects typical OSB shear walls with specified nailing patterns have been combinded with construction adhesive to each framing member.  I have asked around the office and nobody can tell me where this designs have come from or what kind of capacity can be given to the adhesive.  

Am I able to increase the wood panel perimeter nail spacing if construction adhesive is used or is the use of adhesive discouraged all together?

Your response/input is greatly appreciated.

Cheers,
db

RE: Construction adhesive in wood shear walls

Check the IBC.  I have never seen any info for or against its use.
Personally, if you have the time and money - I would love it.  Does it help - probably.  How much?? No clue!!

RE: Construction adhesive in wood shear walls

Never seen such a thing as structural glue.

 

RE: Construction adhesive in wood shear walls

....in wood construction.

 

RE: Construction adhesive in wood shear walls

You can use it, but will get no additional shear value for it.  Only peace of mind, if that helps.  

Mike McCann
MMC Engineering
Motto:  KISS
Motivation:  Don't ask

RE: Construction adhesive in wood shear walls

You said you were in a low seismic zone so it is not as big of an issue but the use of typical construction adhesives for shearwalls (e.g. liquid nails) severely diminishes their ductility which is generally provided in no small part by nail to panel deformations.   

RE: Construction adhesive in wood shear walls

(OP)
WillisV,
That was my concern also, that you lose most (or all) of the ductility with the adhesive.  Seismic does not govern in this case (PGA in the area is 0.059g, very minimal) so the shear walls are basically for wind loads only.

I'd actually found some results of a test done by the National Research Council up here in Canada which I found quite interesting.  Here's the link if anyone is interested;

http://www.nrcresearchpress.com/doi/abs/10.1139/l91-091

Cheers,
db

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