Abstract
Cold-formed steel channel (CFSC) section is a popular material that used broadly in construction, especially in the roof truss system and non-structural elements. CFSC with a variety of sizes, shapes, thicknesses and grades is becoming admired because it offers several advantages such as lightweight, easy fabrication, fast installation, no formwork, termite resistance and corrosion resistance. The main objective of the study is to investigate the CFSC material properties with a variety of thicknesses. When the CFSC is utilised as in construction structural material, the CFSC material properties must be evaluated for further work, especially in design, failure capacity information and modelling intention. The thickness of the CFSC is important in study to check the failure mode and mechanical properties of the material. The material properties of CFSC are examined by using tensile coupon test specimens and universal tensile testing machine. The CFSC that be used in the study is CFSC 1.0 and CFSC 1.2 with the thickness of 1.0 and 1.2 mm respectively for grade G450. The CFSC is selected by having intermediate end stiffener and lipped. The specimen of tensile coupon test is located on flange, web, upper corner and bottom corner of overall section. From the results, the yield stress, elastic modulus and ultimate stress of the CFSC 1.2 is found higher than of CFSC 1.0.
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