Effects of load irregularity on the cyclic behaviour of sand

Ishihara, 1973, Sand Liquefaction under Random Earthquake Loading Condition, 38 Ishihara, 1975, Sand Liquefaction in Hollow cylinder Torsion under Irregular Excitation, Soils and Foundations, 15, 45, 10.3208/sandf1972.15.45 Shen, 1978, Dynamic Response of a Sand under Random Loadings, 2, 852 Ishihara, 1980, Cyclic Simple Shear Tests on Saturated Sand in Multi-Directional Loading, Soils and Foundations, 20, 45, 10.3208/sandf1972.20.45 Japan, 1980, Seismic Design Code of Highway Bridge