Experimental and Numerical Investigation on Dynamic Properties and Human-Induced Vibrations of an Asymmetric Steel-Plated Stress-Ribbon Footbridge

Figure 10

First ten simulated modes of the footbridge. (a) 1st vertical bending (main span), 0.95 Hz. (b) 1st lateral bending + torsion (main span), 0.97 Hz. (c) 2nd vertical bending (main span), 1.09 Hz. (d) 3rd vertical bending (main span) + 1st vertical bending (side span) + lateral (column), 1.65 Hz. (e) 3rd vertical bending (main span) + 1st vertical bending (side span), 1.71 Hz. (f) 1st torsion (main span), 2.20 Hz. (g) 4th vertical bending (main span), 2.27 Hz. (h) 5th vertical bending (main span), 2.89 Hz. (i) 2nd lateral bending + torsion (main span), 3.15 Hz. (j) 6th vertical bending (main span), 3.47 Hz.

(a)

(b)

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(j)