Simulation Study of New Buckling Restraint Bracing Based on Bayesian Optimization Algorithm to Identify the Parameters of Modified Bouc–Wen Model

Table 2

Parameter estimation and variance.

Parameter	Estimated	Variance	Significance
α	0.051157	0.0012377	Stiffness ratio
β	4.76381	0.225278	Hysteresis area
γ	−2.59916	0.216215	Plumpness parameter
n	1.8705	0.0437203	Smoothness parameter of the model
υ0	0.100063	9.53017e − 05	Strength degradation
δυ	0.193383	0.0196162	Strength degradation
Α0	2.96138	0.10239	Strength and stiffness degradation
δA	−1.98218	0.0080262	Strength and stiffness degradation
η0	3.88594	0.0287953	Stiffness degradation
δη	3.42436	0.280545	Stiffness degradation