TY - JOUR AU - Jorabchi, Mohamad Reza AU - oliaei, mohamad reza TI - Effect of internal stiffeners on the vertical and lateral performance of concrete-filled L- and T-shaped steel columns JO - Analysis of Structure and Earthquake VL - 19 IS - 3 SP - 53 EP - 63 PY - 2022 DO - 10.30495/civil.2022.697904 ER -