Shear capacity of timber pile

[GoDucks]

I have never designed a timber pile...but find the need to do it now. I have done enough timber design to get the concepts, but am stumped about the round member...

How do you determine the shear capacity of a round member? Can you use the typical 85 psi allowable shear stress of a timber member and and use the 4/3*R/A equation?

 

[SlideRuleEra]

Per the NDS 2001, the fact that the timber pile is round is not a factor when computing shear capacity. Just multiply the allowable shear stress x crossectional area. Since a timber pile is naturally tapered, carefully choose the crossectional area.

For older (1960's) information on timber pile design, see this page of my website:

http://www.slideruleera.net/AWPI-Page.html

http://www.SlideRuleEra.net

http://www.VacuumTubeEra.net