Page 157 - Handbook of Structural Steel Connection Design and Details

Design of Connections for Axial, Moment, and Shear Forces

142 Chapter Two

Figure 2.44 Eccentric end plate. (Courtesy of Kloiber and
Thornton, with permission from ASCE.)

Figure 2.45 Single plate (extended
shear tab). (Courtesy of Kloiber
and Thornton, with permission
from ASCE.)

Single-plate connections should not be used unless the bolts are posi-
tioned outside the column flanges. In such cases, the connection should
be checked as an extended shear tab as outlined later in this chapter.
Skewed connections to column flanges will also be eccentric when the
beam is aligned to the column centerline. However, if the beam alignment
is centered on the flange, as shown in Fig. 2.45, the minor axis eccentricity
is eliminated and the major axis eccentricity will not generally govern the
column design. The connection eccentricity is related to the parameter,
a, here in the same way as was discussed for Fig. 2.39.
When the beam is aligned to the column centerline, single plates
(Fig. 2.46), eccentric end plates (Fig. 2.47 and 2.48), or single bent
plates (Fig. 2.49) can be used. The eccentricity for each of these con-
nections is again similar to that for the same connection to a beam
web. An additional eccentricity, e , which causes a moment about the
y

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