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ACI 318: Section 7.2.3
Describes WWR Bending Criteria
This section and its commentary are shown below.
7.2.3 -- Inside diameter of bend in welded wire fabric
(plain or deformed) for stirrups and ties shall not be
less than 4db for deformed wire larger than D6 and 2db
for all other wires. Bends with inside diameter of less than
8db shall not be less than 4db from nearest welded intersection.
R7.2.3 -- Welded wire fabric, of plain or deformed wire, can
be used for stirrups and ties. The wire at welded intersections
does not have the same uniform ductility and bend-ability as in
areas which were not heated. These effects of the welding
temperature are usually dissipated in a distance of approximately
four wire diameters. Minimum bend diameters permitted are in most
cases the same as those required in the ASTM bend test for wire
material (ASTM A 82 and A 496).
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