Research on Hysteretic Models for Prestressed and Non-Prestressed Steel Reinforced Concrete Frames

Table 2

Characteristics of skeleton curves under different analytical parameters in positive direction.

Analytical parameters	Ky (kN/mm)	Δy (mm)	Δm (mm)	m (kN)	Kd (kN/mm)
β = 6	27.3	10.2	19.7	312.1	0.503
β = 8	12.4	16.3	29.5	228.7	0.187
β = 10	6.5	24.7	49.2	182.8	0.110
β = 12	3.8	34.3	88.4	150.7	0.058
n0 = 0.1	9.7	20.6	48.7	226.6	0.171
n0 = 0.3	11.0	18.4	48.6	230.4	0.230
n0 = 0.5	12.2	16.2	48.6	221.2	0.660
n0 = 0.7	12.7	14.0	24.2	197.8	2.135
fcu = 30 MPa	9.1	23.6	49.4	246.0	0.106
fcu = 40 MPa	10.6	21.5	49.0	262.1	0.203
fcu = 50 MPa	12.2	20.1	48.8	279.2	0.192
Wss-c = 256.281; ρs-s = 1.287%	12.2	16.0	29.5	221.2	0.263
Wss-c = 268.281; ρs-c = 0.724%	12.6	16.3	29.5	233.3	0.182
Wss-c = 206.098; ρs-c = 0.724%	11.2	16.2	29.5	204.3	0.247
λ = 0.31	12.7	16.2	49.1	233.3	0.314
λ = 0.45	12.6	16.2	29.5	232.1	0.270
λ = 0.54	12.6	16.4	29.7	233.3	0.259