Effect of Temperature Variation on Vibration Monitoring of Prestressed Concrete Girders

Figure 8

Natural frequency and mode shape on temperature conditions for PSC girder: prestress force 98 kN, temperatures 5.4°C–22.5°C.

(a) Mode 1: 20.20 Hz–21.04 Hz

(b) Mode 2: 103.33 Hz–104.65 Hz