A Conceptual Design Approach of Coupled Shear Walls

Table 3

Rotation capacities for coupling beams controlled by flexure as per ATC 40 [16].

Type of coupling beam	Conditions	Plastic Rotation Capacity (Radians)
	Shear/𝑏𝑤𝑑𝑓^′𝑐	IO	LS	CP
Conventional longitudinal reinforcement with conforming transverse reinforcement	≤3	0.006	0.015	0.025
	≥6	0.005	0.010	0.015
Conventional longitudinal reinforcement with non-conforming transverse reinforcement	≤3	0.006	0.012	0.020
	≥6	0.005	0.008	0.010
Diagonal reinforcement	NA	0.006	0.018	0.030