BEHAVIOR OF CONCRETE FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS UNDER STATIC AXIAL COMPRESSION LOAD. J. eng. sustain. dev. [انترنت]. 1 مارس، 2016 [وثق 3 يوليو، 2024];20(2):174-89. موجود في: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/673