Table 4: EMS-98 damage limit states and displacements of the test structure.

Damage
State
Description
(EMS-98)
RMA Roof
Disp. (mm)
CRA Roof
Disp. (mm)
Difference
(%)
D1 Weak/No Structural damage For columns and beams, the deformation does not exceed elastic limit. Only inter-storey drift-sensitive non-structural components are considered. 74 26.66 73.6
D1 Moderate/Low Structural damage For columns and beams considered as primary components the deformation not exceed 25% of the ultimate value. 158 76.66 106.1
D1 Significant/Medium Structural damage For columns and beams considered as primary components the deformation not exceed three quarters (75%) of the ultimate value. 228 228.33 0.1
D1 Heavy Structural damage/Collapse For columns and beams considered as primary components deformation exceeds three quarters (75%) of the ultimate value and at most one structural element exceed the ultimate value. 350 350 0.0