Comparative Study of Nonlinear Static and Time-History Analyses of Typical Korean STS Container Cranes
Table 4
Structural performance levels and damage based on ASCE/SEI 41-13 [3].
Elements
Immediate occupancy (IO)
Life safety (LS)
Collapse prevention (CP)
For vertical elements of SMFs (i.e., portal columns of the crane)
Minor local yielding at a few places. No fractures. Minor buckling or observable permanent distortion of members.
Hinges form. Local buckling of some beam elements. Severe joint distortion but shear connections remain intact. A few elements may experience partial fracture.
Extensive distortion of beams and column panels. Many fractures at moment connections, but shear connections remain intact.
