Numerical Investigation of the Impact of Steel Profiles and Embedded Stiffeners in Circular and Square Concrete-Filled Steel Columns under Axial and Lateral Loading. jcer [Internet]. 2025 Mar. 1 [cited 2025 Sep. 5];7(1):22-33. Available from: http://www.journals-researchers.com/ojs/index.php/jcer/article/view/155