Earthquake Page SNiP
The earthquake load is applied according to SP 14.13330.2011 - "Design in the seismic areas" and chapter 6.31 of SP 35.13330.2011.
| Setting | Description |
|---|---|
| Acceleration coefficient | K1 x A= 0.025 or 0.05 or 0.1 depending on Seismic Area 7 or 8 or 9 which is chosen in general page of Wizard (SP 14.13330.2011, chapter 7.4.19). |
| Damping | Default value for concrete bridges 5% . |
| Importance factor | Default value is 2 according to page 10, Table 3 in SP 14.13330.201. |
| Correction coefficient | Default value is 1 according to page 11, Table 4 in SP 14.13330.2011. |
| Coefficient of energy diffusion | Default value is 1 according to page 13, Table 6 in SP 14.13330.2011. |
| Vertical Earthquake | Yes/No selects whether the vertical earthquake load shall be applied or not.If it is considered it will be combined with one of the components of horizontal earthquake. |
| Factor for vertical earthquake | Recommended value describing the vertical response spectrum and is chosen as 0.75 of the horizontal component. |
| Drawing | Graphical display of the response spectrum diagram chosen automatically for Russian Design Code (SP 14.13330.2011, chapter 5.6, Drawing 2). |