Experimental and Theoretical Comparative Study of Circular Steel Tubular Columns Filled with Self-Compacting Concrete under Axial Concentric Loading. J. eng. sustain. dev. 2013;17(4):27-47. Accessed May 2, 2024. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/971