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Advances in Civil Engineering
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Advances in Civil Engineering
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2009
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Article
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Tab 7
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Research Article
Influence of Excitation on Dynamic System Identification for a Multi-Span Reinforced Concrete Bridge
Table 7
Natural frequencies and mode shapes derived from impact loading.
Mode
Natural frequency
MAC values
Eigenvalue (Hz)
Impact (Hz)
Error (%)
1
2.480
2.472
0.32
0.9957
2
4.024
4.006
0.45
0.9902
3
5.695
5.609
1.51
0.6270