Desy Setyowulan, Saker Mohamed, Eva Arifi
Cold-formed steel (CFS) is popular in mid-and low-rise housing due to its efficient construction, technical, structural, and economic advantages, but lacks an understanding of seismic response. Accurate modeling of cold-formed steel (CFS) frame is crucial for understanding their structural performance, safety, efficiency, and sustainability in construction. It helps predict complex behaviors, optimize designs, minimize material usage, and contribute to innovative construction techniques. This study aims to determine the failure mechanism of a cold-formed steel frame section with screw variation. Modeling different types of screw connections in cold-formed steel (CFS) frames is vital for accurately predicting the structural performance and ensuring the integrity of the entire system. It plays a key role in transferring loads between CFS components, and their behavior can significantly influence the frame’s overall strength, stiffness, and stability. This study used a G550-quality double channel profile (C) of 80 × 30 × 9 × 0.75 with a beam length of 1000 mm and a column of 500 mm. We will arrange these profiles face-to-face (toe to toe) to form a box, connect it using 12 × 20 SDS screws, and model it using ABAQUS. The clamp supports the column, while the beam serves as the free end. There are variations in the number of screws used, such as 8 screws and 4 screws. The study determined that a connection with four screws has a lower strain than one with eight screws. This is attributed to the fact that the connection had less rigidity and is more flexible, which distributes stress more uniformly across the frame and connection area. © Institute of Technology PETRONAS Sdn Bhd (Universiti Teknologi PETRONAS) 2025.
Universitas Brawijaya, Malang, Indonesia
