Title Experimental and Numerical Study on the Structural Behavior of Non-Welded Stud Systems in Cold-Formed Steel Structures
Authors 이지영(Lee, Jiyoung) ; 조혜림(Jo, Hyerim) ; 김용남(Kim, Youngnam) ; 이재경(Lee, Jaekyung) ; 이기학(Lee, Kihak)
DOI https://doi.org/10.5659/JAIK.2026.42.10.357
Page pp.357-365
ISSN 2733-6247
Keywords Cold-Formed Steel; Self-Drilling Screw Connections; Shear Capacity; Structural Behavior; Structural Performance Evaluation; Numerical Analysis
Abstract This study investigates the structural performance of cold-formed steel (CFS) systems through experimental testing and numerical analysis. The study focuses on self-drilling screw connections and structural members in a non-welded stud system. Experimental results demonstrate that increasing the number of screws enhances shear capacity beyond existing design predictions. Structural member tests highlight the influence of reinforcement and member configuration, while three-dimensional frame and truss systems exhibit stable load redistribution behavior and enhanced structural stability. Numerical analyses using ABAQUS and MIDAS showed good agreement with the experimental results in terms of load?displacement behavior and failure modes. In addition, a practical structural application example confirmed stable structural responses and reasonable load transfer behavior of the proposed system. The results provide useful insights into the structural behavior and applicability of non-welded CFS stud systems for structural performance evaluation and engineering design.