A Simplified Procedure for Base Sliding Evaluation of Concrete Gravity Dams under Seismic Action

Table 7

New dams: spectral acceleration given by the Italian Code for the different limit states (SLO, SLD, SLV, SLC) and for an action with return period of 𝑇_RET=475 years, for granite.

Dam	Period (s)	Rock type	SLO 𝑎(𝑇) (m/s^2)	SLD 𝑎(𝑇) (m/s^2)	SLV 𝑎(𝑇) (m/s^2)	SLC 𝑎(𝑇) (m/s^2)	SL475  𝑎(𝑇) (m/s^2)
2	0.23	granite	2.49	3.03	6.41	6.93	4.14
3	0.3		1.85	2.4	6.06	6.67	3.58
4	0.33		2.2	3	7	7.85	4.17