This research deals with studying the response of High Strength Concrete (HSC) structural elements subjected to transverse forces simulating seismic actions. The analysis of such structural elements necessitated further development of the Inelastic Damage Analysis Program Code "IDSARC 3" in order to predict the behaviour of High Strength Concrete (HSC) structural elements. The authors further developed a modified version of the computer program, titled, "IDARC-M" in this investigation. The program was validated by comparing the obtained hysteretic load-deformation curves with the experimental test results of different structural elements published in the literature.