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Fadhluhartini Muftah,Mohd Syahrul Hisyam Mohd Sani,Mohd Mawardi Mohd Kamal 한국강구조학회 2019 International Journal of Steel Structures Vol.19 No.3
Cold-formed steel (CFS) is a popular structural and non-structural material that is utilised as roof truss, wall panel and storage racks. But nowadays, CFS is selected and proposed as column and beam in building construction. CFS with open-section and very thin thickness is prone to deform and buckle in large condition. Therefore, the problem must be solved by proposing a new section that is matched up or formed of two or more open-sections to be one new section, shape and cross-section area. There are two types of channel-section and a connection is used to produce a bolted built-up CFS beam in the study. The fi rst type is jointed with bolt and nut on stiff ener or lipped, which is known as outstand stiff ener, and another type is connected by locating the bolt and nut on web element and recognised as extended stiff eners. The objective of the study is to determine the fl exural strength and load-deformation behaviour of both types of bolted built-up CFS section. Then, the experimental result is verifi ed with the Standard of Practice, American Iron and Steel Institute and BS EN 1993-1-3, Design of steel structures ( 2006 ). As a result, bolted built-up CFS beam with extended stiff ener and a span of bolt with constant value of 22.5 mm is expressed as a good result of fl exural strength. In addition, the fl exural strength of both beams is dependent only on spacing or bolt location.
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