International Journal of Concrete Structures and Materials

Table 4 DDBD parameters calculated for steel braced RC frame models.

From: Application of the Direct Displacement Based Design Methodology for Different Types of RC Structural Systems

	4 storey	8 storey	12 storey
Drift limit θ_d	0.025	0.025	0.025
Effective mass m_e (kg)	229,836	462,550	694,873
Effective height H_e (mm)	9,670	18,390	27,140
Design displacement Δ_d (mm)	230	414	587
Equivalent damping $ξ_{eq}$	13.62	13.64	13.49
Effective period T (s)	1.70	2.65	3.30
Base shear (kN)	650	992	1,299

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