Soil Property Reduction

The Visual-Q4M has a generator parametric curves to simulate the decay of the shear modulus and the variation of the damping in function of the cycles of deformation (%).

It's implemented with a series of standard curves:

• EPRI(93) PI = 10
• EPRI(93) PI = 30
• EPRI(93) PI = 50
• EPRI(93) PI = 70
• SEED et al. (1986) Gravel
• SEED et al. (1986) Sand - Lower Bound
• SEED et al. (1986) Sand - Average
• SEED et al. (1986) Sand - Upper Bound
• IDRISS et al. (1990) Clay
• IDRISS et al. (1990) Sand
• IDRISS et al. (1990) Sand Mean
• VUCETIC & DOBRI, IP = 0
• VUCETIC & DOBRI, IP = 15
• VUCETIC & DOBRI, IP = 30
• VUCETIC & DOBRI, IP = 50
• VUCETIC & DOBRI, IP = 100
• ROLLINS et al. (1998)

If available, you can enter any parametric curve in ASCII format as shown: