Problems: none from Onouye and 12A, 12B, & 12C
12A) Determine the capacity of this butt splice based
on shear, bearing, and net tension. The plates are
made of A36 steel and the four bolts on each side of
the splice are A325-SC with standard round holes.
Partial answers to check with:
P = 60 k (shear governs with
Pb = 104.4 k and Pt-gross = 86.4 k, Pt-net = 92.5 k)
12B) Determine the capacity of the welded connection
shown. The weld size is 3/16 in.. Assume the base
metal is A36 steel and electrodes are E70XX in each
problem. Use L = 4.5”.
Partial answers to check with:
Pv = 38.9 k, Pt = 33.75 k
12C) For the rigid frame shown, the reactions at A are:
Ax = -7.45 kN, Ay = -7.29 kN, MA = 21.05 kN⋅m. The
reactions at D are: Dx = -4.55 kN, Dy = 7.30 kN,
MD = 11.07 kN⋅m. Plot the shear and bending moment
diagrams and identify Vmax and Mmax.
Partial answers to check with:
MBA= 12.49 kN-m, MCB= -9.4 kN-m,
Vmax = 7.45 kN, Mmax = -21.05 kN-m
B
12 kN
A
4.5 m
3 m
C
D
(25%)
(25%)
(50%)
(not required))