Page 57 - Handbook of Structural Steel Connection Design and Details
P. 57
Design of Connections for Axial, Moment, and Shear Forces
42 Chapter Two
Figure 2.1 Various vertical bracing arrangements.
slip critical, the surface class is B, and threads are not excluded
from the shear planes. The slip-critical design strength per bolt is
r 1 1.13 0.5 56 31.6 kips
str
The specification requires that connections designed as slip criti-
cal must also be checked as bearing for the bearing condition. The
bearing design strength per bolt is
2
r 0.75 1.125 48 35.8 kips
v
4
Since 31.6 35.8, use 31.6 kips as the design strength. The esti-
mated number of bolts required is 855/(31.6 2) 13.5. Therefore,
try 14 bolts each side of the connection.
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