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Advances in Bridge Engineering

Table 1 Structural dynamic characteristic of the first 20 modes of the bridge

From: Parametric analysis of the dynamic characteristics of a long-span three-tower self-anchored suspension bridge with a composite girder

Order of mode

Frequency (Hz)

Mode description

Order of mode

Frequency (Hz)

Mode description

1

0.09998

BD-LG

11

0.52824

BD-3-SY-V

2

0.16203

BD-1-ASY-V

12

0.56296

MC-SY-L

3

0.27797

BD-2-ASY-V

13

0.59849

MC-ASY-L

4

0.28202

BD-1-SY-V

14

0.61127

MC-ASY-L

5

0.39176

BD-2-SY-V

15

0.61130

MC-SY-L

6

0.44303

BD-1-SY-T + BT-SY-L

16

0.61215

MC-SY-L

7

0.44715

BD-1-ASY-T + BT-ASY-L

17

0.61229

MC-ASY-L

8

0.45514

BD-3-ASY-V

18

0.62703

BD-4-ASY-V

9

0.47698

MC-SY-L

19

0.65046

MC-ASY-L

10

0.49670

MC-ASY-L

20

0.65165

MC-L

  1. Note: BD Bridge deck, BT Bridge tower, MC Main cable, LG Longitudinal, V Vertical, L Lateral, T Torsional, SY Symmetric, ASY Anti-symmetric
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