Experimental study on the biaxial bending cyclic behaviour of RC columns

摘要

The available experimental studies on the inelastic 3D response of axially loaded members under biaxial bendingmoment loading histories are limited. Possibly, this is partially due to the uncertainty of combining bendingmoment’s histories in the two orthogonal directions that adds considerable complication to the problem.Three types of cantilever reinforced concrete columns with constant axial load were subjected to cyclic uniaxialand biaxial tests. It was intended to gain enhanced knowledge concerning the behaviour or RC columns thatallows for the calibration of simplified non-linear models. The experimental campaign is described, test results arepresented and discussed comparing the uniaxial and the biaxial tests and the effect of the different biaxial loadpaths in the columns behaviour.