Answer:
- ULS: Ultimate Limit State
- SLS: Serviceability Limit State
- EQU: Check of Equilibrium Limit State; a loss of static equilibrium of the structural system or one of its parts; for example, due to buckling, buoyancy, or lifting
- STR: Failure of the structure or its individual parts due to exceeding material strength, deformations that are too large, reaching kinematic state, or unstable position
- GEO: Deformations that are too large or failures of foundation soil