Siti Masyithah Zainol creator author. text abstract or summary my 2019 2019 monographic eng xi, 60 pages : illustrations (some color) ; 30 cm. + 1 CD-ROM This paper represented a research on the structural behaviour of cold-formed steel columns affected by local-distortional interaction. Cold-formed steel structural have been widely used in the construction industry and have emerged as a preferred solution for single-storey commercial and industrial building. Commonly, cold-formed steel was manufactured with holes to accommodate plumbing, electrical, and heating conduit in the walls and ceilings of the buildings. This research will be concentrated on the effect of the perforation on the C-section cold-formed steel column. The method used for this experiment was compression test which are the column specimens were compressed between bearing plate with fixed ends. Two series of single C-section cold formed steel column will be used in this experiment with different depth which is 103 mm and 203 mm respectively. There are five numbers of specimens for each series. Each member has nominal thickness of 1.2 mm and the column length of 600 mm. The displacement of the specimen during testing was read by the transducer. The result of this experiment shows the ultimate load of each specimen varies with the position of the perforation and the depth. The graph of load-displacement will studied the movement of the flange during the compression test. The buckling behaviour can be seen along the experiment which is the distortional and local buckling will occur on the specimens. Most of the specimen will failed at the hole. specialized Siti Masyithah Zainol Faculty of Civil Engineering and Earth Resources Project Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019 Includes bibliographical references Faculty of Civil Engineering and Earth Resources Dissertations Universities and colleges Dissertations Theses THE0008789(Local) UMP 200720 20251125105601.0 eng