Page 75 - Handbook of Structural Steel Connection Design and Details

Design of Connections for Axial, Moment, and Shear Forces

60 Chapter Two

Figure 2.9 Force distribution for special case 2 of the uniform force method.

5
A / -in fillet weld is indicated, but the flange of the MC12 45
8
must be checked to see if an adequate load path exists. The aver-
age thickness of 0.700 in occurs at the center of the flange, which
is 4.012 in wide. The thickness at the toe of the flange, because of
2
2
2
the usual inside flange slope of / or 16 / %, is 0.700 / 2.006
12 3 12
0.366 in (see Fig. 2.10). The thickness at the toe of the fillet is 0.366
2/12 0.625 0.470 in. The design shear rupture strength of the
MC12 flange at the toe of the fillet is
R 5 0.75 3 0.6 3 58 3 0.470 3 17 3 4 5 834 kips
v
The design tensile rupture strength of the toe of the MC flange
under the fillet is

0.366 1 0.470
R 5 0.75 3 36a b0.625 3 4 5 28 kips
t
2

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