________________________________________________________________________
PROBLEM (7.55) For the beam of Prob. 7.53, if V = 2 kN and the allowable shear force in each
nail is 250 N, calculate the largest permissible longitudinal spacing between nails.
SOLUTION
From solution of Prob. 7.53: 3346 10120107.18 mmQmI ×=×= −
36
6
2 10 (120 10 ) 12.8
18.7 10
VQ
qk
I
−
−
××
== =
×Nm
We have Fsq 2=⋅
or
3
3
2(250) 39.06 10 39.1
12.8 10
sm
−
==×=
×mm
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