Force x Distance (F x D)
_______lb x_______inches
_______inch lbs
Force in Rebar
F F F
= = =
BM/d
______inch lbs /______inches
______lbs
Required Diameter of Rebar
Cross Section Area of rebar
= = =
force _________ _________
/ shear stress of rods (30,000 lb/sq in) /30,000
(See Table A)
___________ minimum diameter of rebar
___________ minimum number of rebar
(Note: multiple rebar may be required if cross section area exceeds 0.44 sq in)
Bond Length
BL is calculated
= force in rebar / bond strength per inch in pine (Table C)
SELECT ONE
BL BL BL
(3/4" rebar) (1/2" rebar) (3/8" rebar)
_______/318 _______/247 _______/212
= = =
_______ _______ _______
inch depth in wood (each end) inch depth in wood (each end)
inch depth in wood (each end)