560161.fig.0019a
(a) 1st vertical bending mode shape (frequency = 0.776 Hz, damping ratio = 2.57%, by SSI)
560161.fig.0019b
(b) 2nd vertical bending mode shape (frequency = 1.242 Hz, damping ratio = 0.65%, by SSI)
560161.fig.0019c
(c) 3rd vertical bending mode shape (frequency = 1.698 Hz, damping ratio = 1.26%, by SSI)
560161.fig.0019d
(d) 1st torsional mode shape (frequency = 1.631 Hz, damping ratio = 0.27%, by EFDD)
560161.fig.0019e
(e) 2nd torsional mode shape (frequency = 1.837 Hz, damping ratio = 3.97%, by SSI)
560161.fig.0019f
(f) 3rd torsional mode shape (frequency = 2.431 Hz, damping ratio = 0.69%, by SSI)
Figure 19: Comparisons of identified mode shapes of Wuyuan Bridge based on wireless and tethered sensing data.