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The parameter 1,3×d n approximately takes into account the structural sizes of the thickness of
a washer, the height of a nut and stocked on length of a stud. For the implementation of the
simplified drawing of a stud joint the followings correlations are used: D=2 d n; D w=2,2 d n;
H=0,8 d n; S w=0,15  d n.
The structural drawing of a stud joint is shown in figure 4.22, and it is simplified in figure
4.22, b.

а) b)
Figure 4.22 – The stud joint

The parameters of a stud jack are found according to the followings dependences:
d opening=0,85 d n; L opening=L 1+0,5 d n.
According to these parameters a stud jack is done in figure 4.23.

Figure 4.23 – The stud jack

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