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All Journal International Journal of Civil Engineering and Infrastructure (IJCEI)
Rachmad Irwanto
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Environmental Science Transportation

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NUMERICAL STUDY ON BEHAVIOUR OF COLD-FORMED STEEL UNLIPPED CHANNEL SUBJECT TO AXIAL COMPRESSION Hidayat Mughnie; Budiman Budiman; Rachmad Irwanto; Muhammad Taufiq Al Hafidz
International Journal of Civil Engineering and Infrastructure Vol 2, No 2 (2022): IJCEI Volume 2 No. 2
Publisher : University Of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.07 KB) | DOI: 10.24853/ijcei. 2. 2. 57-65

Abstract

Innovation in obtaining construction materials that are efficient and applicable to various conditions is a challenge for researchers. Cold-formed steel is a material breakthrough in construction that has advantages over hot-rolled steel. Many studies have been carried out on Cold-formedsteel subjected to various loadings to examine the behavior and capacities of the sections. This study aims to investigate the behavior and section capacity of cold-formed steel unlipped channels due to axial compression loads. This research begins with conducting a literature study, then carrying out numerical analysis using the finite element method in ABAQUS, numerical test, and calculation of section capacity based on existing research in the literature. The calculation of section capacity is carried out based on SNI 7971-2013 or AS/NZS 4600:2005. The results of the numerical analysis can be seen from the behavior and capacities of the sections of the unlipped channel, the section capacity from the numerical test will be compared with the section capacity obtained from the calculation based on SNI 7971-2013 or AS/NZS 4600.
DESAIN CHANGES IN A SHORT DURATION CONSTRUCTION PROJECT WITH COST AND TIME BOUNDARIES: A PROJECT REVIEW Rachmad Irwanto
International Journal of Civil Engineering and Infrastructure Vol 2, No 2 (2022): IJCEI Volume 2 No. 2
Publisher : University Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.781 KB) | DOI: 10.24853/ijcei.2.2.19-27

Abstract

Design changes are inevitable in most projects. In many construction projects they may look not too complicated to be executed in front of computer models. The actual situation turned out to be the other way around. Apart from detailed changes in shop drawings, bill of quantity and specifications, administrative works related to the project are quite considerations. These mounted consequences would be more for short duration projects with government funding executed in the near end book period. The allocated execution period for short duration projects is not usually allowing rapid changes for the unexpected consequences. This paper presents what actually happens inside the project management during the contract change order process.
Co-Authors Budiman Budiman Hidayat Mughnie Muhammad Taufiq Al Hafidz