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In the present paper, the bi-axial cyclic loading tests of four types of RC columns under the different loading histories have been performed. Four types of RC columns are respectively RC column, SFRC column and RC columns with the intermediate reinforcements. The flexural strength and ductility of the different types of RC columns have been examined in details in the post-peak loading area. Furthermore, the energy absorption capacities, the progressive deformation of intermediate reinforcements and the buckling behavior of re-bar have been discussed during cyclic loading. It has been found that the use of intermediate reinforcements and SFRC 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.

A study on the influence of material and structural properties on the cyclic deformation of RC columns subjected to bi-axial loadings