Wood I-Joist 3

[2457F]

Trying to determine the capacity of some wood i-joist. I have attached a sketch and some photos. The cross-section does not match any wood i-joists from any manufacturer's catalogs. Ultimately trying to post a sign that will indicate the maximum live load. Any ideas? I've never seen 2x4's fastened at the bottom and top chords as can be seen in the photos.

 

[2457F]

I absolutely agree with you JAE.....how does one clearly identify to someone what 125 psf vs some other value. I like how they do it with steel racks, they just say X lbs per shelve....this in my opinion is easier for others to understand.

SRE - Thanks again for your input. Sorry it's taking so long. I promise to have something. I enjoy these types of projects.

 

[SlideRuleEra]

I've scanned my calcs and attached them in a .zip file along with two American Plywood Association (APA) documents. These are from 1992 and 1997, and appear to be the latest that APA has issued on glued plywood-lumber composite beams. I suppose APA does not want to encourage use of this design, since there are better choices today.

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