Long-Term Vibration Monitoring of the Effects of Temperature and Humidity on PC Girders with and without Fly Ash considering ASR Deterioration

Table 11

Coefficients of linear regression model (damping ratio ~ temperature) of girder No. 3.

Mode	Intercept	Gradient	Std. Error	(%)	(%)	Coefficient of determination
1	0.0145		0.0012	8.1397		0.0300
2	0.0214		0.0014	6.4610		0.2159
3	0.1010		0.0079	7.8235		0.1843