Research Article
Long-Term Vibration Monitoring of the Effects of Temperature and Humidity on PC Girders with and without Fly Ash considering ASR Deterioration
Figure 24
((a)-(b)) Variations in two bending modal frequencies of girder No. 3 over one and a half years.
(a) The 1st bending mode (mode 1) |
(b) The 2nd bending mode (mode 2) |