Research Article
Seismic Response Analysis of Multidimensional and Multiangle Long-Span Top-Supported CFST Arch Bridge
Table 4
Chord axial force ratio table of three dimensions to two dimensions.
| | Position | Direction | Upper chord | Lower chord | | X + Y | X + Z | Y + Z | X + Y | X + Y | X + Z |
| | Arch foot | X | 1.0 | 1.2 | — | 1.1 | 1.4 | — | | Y | 1.0 | — | 1.5 | 1.1 | — | 1.8 | | Z | — | 1.2 | 1.5 | — | 1.3 | 1.8 |
| | 1L/8 | X | 1.1 | 1.1 | — | 1.0 | 1.4 | — | | Y | 1.1 | — | 1.4 | 1.1 | — | 1.2 | | Z | — | 1.2 | 1.5 | — | 1.4 | 1.1 |
| | 1L/4 | X | 1.1 | 1.1 | — | 1.1 | 1.2 | — | | Y | 1.1 | — | 1.2 | 1.1 | — | 1.5 | | Z | — | 1.1 | 1.1 | — | 1.2 | 1.5 |
| | 3L/8 | X | 0.9 | 1.2 | — | 1.1 | 1.0 | — | | Y | 1.0 | — | 1.5 | 1.1 | — | 1.4 | | Z | — | 1.1 | 1.5 | — | 1.0 | 1.4 |
| | Vault | X | 1.3 | 1.8 | — | 1.4 | 1.3 | — | | Y | 1.3 | — | 1.0 | 1.4 | — | 1.1 | | Z | — | 1.7 | 1.0 | — | 1.4 | 1.1 |
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Note. The values in the table are the ratios of the chord axial force amplitudes under three-dimensional and two-dimensional excitation.
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