Research Article

Reassessing the Plastic Hinge Model for Energy Dissipation of Axially Loaded Columns

Table 1

Energy dissipation of axial loaded columns: test results and analytical model results.

Column 1Column 2Column 3Column 4Column 5Column 6Column 7Column 8Column 9Column 10
Specimen identificationOriginal length (mm) (kN) (mm)Experimental energy (kN·m) (kN)Final length (mm)Hinge rotation (radians)Plastic hinge model  energy (kN·m)Test/analysis ratio (column 5/column 9)

SR 335111243857.5919.71262.643 (151.5°)2.023.76
SR 34 (a)5371304108.1920.01272.664 (152.6°)2.034.03
SR 34 (b)5371354108.1219.81272.664 (152.6°)2.033.99
SR 355491114226.9616.51272.675 (153.2°)2.043.41
SR 36 (a)5621064356.9115.91272.686 (153.9°)2.053.37
SR 36 (b)5621194357.3716.91272.686 (153.9°)2.053.59
SR 426601035336.7812.71272.754 (157.8°)2.103.22