Table 11 Parameters of fragility curves for SD pre-1980, SD post-1980, GD pre-1980 and different numbers of storeys considering both the unbiased and the generalized versions of database

From: Correction to: Seismic fragility for Italian RC buildings based on damage data of the last 50 years

DBs Ns Unbiased version of DB Generalized version of DB
DS1 DS2 DS3 DS4 DS5 \(\beta_{{{\text{DS}}}}\) DS1 DS2 DS3 DS4 DS5 \(\beta_{{{\text{DS}}}}\)
\(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\)   \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\) \(e^{{\lambda_{{}} }}\)  
GD Pre-1980 1 0.22 2.72 6.62 14.75 21.45 1.95 0.23 0.68 1.02 1.38 1.54 0.83
  2 0.11 1.45 6.04 23.15 26.36   0.18 0.49 0.89 1.65 1.82  
  3 0.05 0.51 1.73 9.23 9.63   0.15 0.34 0.58 1.29 1.47  
  4 0.02 0.25 1.36 9.34 12.39   0.13 0.25 0.47 1.09 1.24  
  5 0.01 0.14 0.61 2.31 5.38   0.13 0.20 0.32 0.56 0.85  
SD Pre-1980 1 0.32 1.19 3.73 12.35 105.28 1.95 0.30 0.56 0.93 1.59 2.60 0.83
  2 0.19 1.33 3.36 8.39 36.87   0.25 0.59 0.89 1.32 2.48  
  3 0.09 0.68 1.64 5.39 26.76   0.18 0.45 0.67 1.14 2.30  
  4 0.05 0.34 0.80 3.76 19.24   0.14 0.35 0.52 1.03 2.10  
  5 0.02 0.14 0.38 3.11 18.47   0.11 0.26 0.39 0.97 2.09  
SD Post-1980 1 0.72 4.41 8.69 38.05 261.14 1.95 0.46 1.02 1.38 2.68 2.72 0.83
  2 0.39 3.90 8.68 24.80 164.38   0.35 0.94 1.33 2.19 3.68  
  3 0.21 2.06 5.12 21.17 128.51   0.27 0.74 1.10 2.04 4.68  
  4 0.11 0.82 2.55 13.05 110.56   0.22 0.52 0.85 1.70 4.35  
  5 0.02 0.24 1.04 13.19    0.11 0.32 0.61 2.00 5.71