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

Table 10

Coefficients of linear regression model (frequency ~ temperature + humidity) of girder No. 3.

Mode	Intercept	Std. Error	(%)	Coefficient of determination	Correlation coefficient
1	10.1673	0.0297	0.2923	0.8815	0.9389
2	37.3092	0.1855	0.4973	0.8725	0.9341
3	33.8330	0.9980	2.9499	0.8618	0.9283