Table 4: Rotation capacities for coupling beams controlled by shear as per ATC 40 [16].

Type of coupling beamConditionsPlastic Rotation Capacity (Radians)
IOLSCP

Conventional longitudinal reinforcement with conforming transverse reinforcement
30.0060.0120.015
60.0040.0080.010
Conventional longitudinal reinforcement with non-conforming transverse reinforcement 30.0060.0080.010
60.0040.0060.007