This research is focused on the damage estimation of the underground reinforced concrete structure placed on the fault line in case of the fault rapture. 3D FE analyses, of which taken both soil and reinforced concrete non-linear behaviors into consideration were applied to clarify the relations between the fault rapture and the fracture mode of the structure.
Different fracture modes of the structure, in terms of the direction and the dislocation of the fault rapture, were observed in the results. In addition, two limit fault dislocations focused on the structural performance, one is the member failure limit and another is the structure destruction limit, were proposed.
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