I would appreciate a knowledgeable comment on the AASHTO requirement on
shear in timber beams (AASHTO SSHB 188.8.131.52).
What would be the rationale behind the calculation of maximum/design shear
at 3d or L/4 off support for moving loads? If used for wood transverse
decking, does this approach assume distribution of wheel load along the tire
width (partial distr. load vs. concentrated load)?
What would be a good source of additional information on the subject?
Steve Gordin, SE
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