Finger Joint Spacing in Glulams?

[Dinosaur]

I have been asked to inspect glulams ordered by my agency for a pedestrian bridge. The only portion of the QC at the plant I am concerned about involves locating finger joints (End joints) in adjacent laminations far enough away from one another or from a knot. The language in the code is extremely hard to read for a guy used to inspecting structural steel and concrete. Can someone give me a plain language interpretation of the finger joint spacing requirements?

The code I am using is American National Standard for wood products - Structural Glued Laminated Timber (ANSI/AITC A190.1-2002). The paragraphs of interest are 4.5.2 - 4.5.2.5

The plans call for 24F-V3 glulams 5 x 22 inches. The plant is using 1.5 inch thick boards which are planed down a small amount in the fabrication process.

Thanks in advance for any help you can provide.

 

[RARWOOD]

Contact APA-EWS or AITC. In addition you could call a glulam manufacturer.

You might try Alamco in Albert Lee, Minnesota. You could also contact Unit Structures, Timberweld, Sentinal, Filler King or Unadala.

FYI 24F-V3 is a stress combination for Southern Pine. SP is planed down prior to gluing because of the resin in the wood. Standard "1 1/2" lams for SP are 1 3/8" (22, 23 3/8, 24 3/4).

24f-V4 Douglas Fir glulams use 1 1/2 laminations ( 22 1/2, 24, 25 1/2).