Hi all.
I’m trying to make model for the dynamic analysis of portal frame under HSLM passages.
I have one model based on sofistik example for beam models but I think I’m missing the correct results (vertical acceleration), regarding fact that my construction is embedded into ground.
I came up with 2D model to save computational time, based on “tunnel_section_01” example from Teddy:
$ soil material
MAT 2 E 100000 MUE 0.2 GAM 19 TITL ‘SOIL’
NMAT 2 MOHR P1 20 P2 0 P3 0
BMAT 2 MREF 2 H 0.2 MUE 0.5 CRAC 0.0MAT 3 E 100000 MUE 0.2 GAM 19 TITL ‘SOILBOUND’
NMAT 3 MOHR P1 20 P2 0 P3 0
BMAT 3 MREF 3 H 0.2 MUE 0.5 CRAC 0.0 TYPE HALF
Do you think this approach will be correct? What values would you assume for the radius (R) and what parameters for soil (mat2) and soil boundary (mat3)?
Szymon