Research Article
Analysis on the Influence of Increasing Seismic Fortification Intensity on Seismic Performance of Underground Station
Table 3
Internal forces of the station structure with different earthquake motions.
| | Type | E2 | E3 | | VII degree fortification | VIII degree fortification | Difference % | VII degree fortification | VIII degree fortification | Difference % |
| | Axial force (kN) | 991.3 | 1182.5 | 19 | 1296.5 | 1687.1 | 30 | | Shear force (kN) | 968.7 | 1123.8 | 16 | 1212.8 | 1451.4 | 20 | | Bending moment (kN·m) | 1542.3 | 1896.5 | 23 | 1968.7 | 2469.2 | 25 |
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