Raymond B. Seed Armen Der Kiureghian Robert Kayen Robb E. S. Moss H. Tolga Bilge M. Ilgac S.M. Chowdhury Kohji Tokimatsu K. Onder Cetin 2018 <p>This study serves as an update to the Cetin et al. (2000, 2004) [1,2] databases and presents new liquefaction triggering curves. Compared with these studies from over a decade ago, the resulting new Standard Penetration Test (SPT)-based triggering curves have shifted to slightly higher CSR-levels for a given N1,60,CS for values of N1,60,CS greater than 15 blows/ft, but the correlation curves remain essentially unchanged at N1,60,CS values less than 15 blows/ft. This paper addresses the improved database and the methodologies used for the development of the updated triggering relationships. A companion paper addresses the principal issues that cause differences among three widely used SPT-based liquefaction triggering relationships.</p> application/pdf 10.1016/j.soildyn.2018.09.012 en Elsevier SPT-based probabilistic and deterministic assessment of seismic soil liquefaction triggering hazard article