Restoring Force Model of an Energy-Dissipation Joint in Hybrid Frames: Simplified Skeleton Curve and Hysteretic Rules

Table 6

Coefficients of rotation in the simplified trilinear skeleton curve.

Specimen	α1	α2	α3
J-6-1	0.85	2.01	2.85
J-8-1	0.87	2.07	3.24
J-8-2	0.84	2.05	2.96
J-8-3	0.85	2.13	3.20
Calculated value	0.85	2.07	3.06
Standard deviation	0.04	0.04	0.16