Calculation of Temperature Action of Flat Steel Box Girder of Long-Span Bridges Using a Joint Model of ARMA Mean and GARCH Variance

Table 2

Values of estimated parameters in Fourier series.

Fourier series	A(t) =  + cos () + sin () (0 ≤ t ≤ 365)
Parameters
Values	14.610	−12.35	−3.258	0.016