Factors Affecting Strength in Yield Model

 

Connection-Geometry & Material Factors

1. fastener diameter D

2. dowel bearing length l

3. fastener bending yield strength F_yb

plastic hinge  (textbook section 11.6, NDS appendix I)

4. dowel bearing strength of each wood member F_e  (NDS tables 11.3.2 and 11.3.2B)

1. specific gravity (dry) of wood member G  (NDS table 11.3.2A)

2. angle of load to grain for wood member θ

3. relative size of fastener (large or small diameter)

"e" for embedding strength

Wood Structures - A Design Guide and Commentary, ASCE Structural Division, 1975, page 237.

5. dowel bearing strength F_e of metal side plates (if used)

 

 

Subscripts

m = main member

Connection		Main Member
two- member	bolt	thicker one
	nail, lag screw	receives pointed end
three-member		middle one

s = side member