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

Table 8

Coefficients of linear regression model (frequency ~ temperature + humidity) of girder No. 1.

Mode	Intercept	Std. Error	(%)	Coefficient of determination	Correlation coefficient
1	9.4809	0.0235	0.2483	0.8923	0.9446
2	37.2076	0.1291	0.3470	0.8954	0.9463
3	31.6610	0.9425	2.9768	0.6576	0.8109