Study of cold formed steel beam column joint to resist lateral load

Abstract

Cold Formed Steel (CFS) is one of the materials that recently used in building structures. There are many advantages of CFS compared with other materials, such as lightweight, high tensile strength, and fast construction. Hollow Structural Sections (HSS) is the most commonly used as beam and column CFS sections. The purposes of this study are determining the behavior and capacity of CFS beam column joint under lateral load with manual calculation, numerical analysis and experimental. The test specimens used 1 mm thick, 4x4cm HSS for column and 2x4cm HSS for beam. Beam and column connected by two single angle plates placed above and below the beam sides. Both parallel and staggered fastener configurations used in this experiment. Four 4 mm diameter bolts used in this connection. Monotonic static loading applied on beam for modelling the lateral load. The experimental results show the behavior and the capacity of the beam column joint with parallel fastener configurations. The numerical results show that the staggered fastener configuration has better performance compared with the parallel fastener configuration. The CFS beam column joint are adequate to resist the lateral load and feasible to be apply as structural components in building structures.

Study on the Static Behavior of Cold-Formed Steel Fabricated Beam-Column Joint

“…Cold-formed steel (CFS) sections can be easily prefabricated compared to hot-rolled steel sections. Their structural behavior of beam-to-column connections in construction is different from hot-rolled steel counterparts due to the thinner thickness of connected parts of the coldformed steel sections [5]. The ability of CFS sections to be produced in different section configurations made it widely adopted in modular construction.…”

“…The beam-to-column joint connection is the most critical structural member of the building construction [5]. Most of the building failures are found to occur on failures developed on beamto-column connections.…”

Study of cold formed steel beam column joint to resist lateral load

“…The failure of connection by angle plate along with beam column connector at the junction using single rows of screws and double of screws in FEM analysis are due to the distortion of angle plate as well as distortion of the beam-column connector. The connection with single row of screws and double row of screws using beam column connector at the junction have more rotation and less amount load of 1.2 kN and 0.9 kN so they are not recommended than the connection by angle plate along with beam column connector at the junction using single rows of screws and double of screws that have load of 2 kN and 3.4 kN [4].…”