A study on the deformation properties of SFRC columns subjected to different types of bi-axial cyclic loadings

Abstract

In this paper, the bi-axial cyclic loading tests of RC and SFRC columns under the different loading histories have been performed. The influence of loading-path on the deformational performance, such as the flexural strength and ductility of RC and SFRC columns, and on the buckling behavior of re-bar has been examined in details in the post-peak loading area. Furthermore, the energy absorption capacities have been discussed in relation to the buckling behavior of re-bar and the deterioration of core concrete during cyclic loading. It has been found that SFC may be effective to make the plastic hinged zone of column more ductile, particularly for the column with rough interval of hoop tie, i.e., the interval of 120 mm in the present study.