Page 287 - Forensic Structural Engineering Handbook
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FIGURE 8.20 Cracking of reinforced concrete columns.
2
4c + b 2
R = Radius of cut =
8c
c
a b
Reduced beam
section
Protected zone
FIGURE 8.21 Reduced Beam Section (RBS) prequalified moment
frame connection. (Source: "Prequalified Connections for Special and
Intermediate Steel Moment Frames for Seismic Applications", AISC)
8.26
