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Abstract
Roof structure is one of the important elements in a building, there are many types of roof structures such as Portal Frame. Using steel pipe as a portal frame will cause higher dimensions to resist the flexural moment, since it is categorized as a compression member. This research focuses on redesigning materials used with WF profile and modification of castellated beam to optimize the dimension of profile and reducing the cost of portal frame roof that uses steel pipe. By applying Value Engineering Method to analyze the cost and LRFD Method to analyze the structure, the most effective alternative design can be implemented at Rawamangun Station, LRT Jakarta Project, as the place of the research. Alternative materials considered are Hybrid Castellated with WF Solid, Full Castellated Beam and Full WF Solid. After going through many processes of analyzing, the alternative material chosen is Hybrid Castellated Beam with WF Solid based on the fulfilled structural aspects, workability considerations and optimum cost. It is obtained that the alternative model cost Rp. 7,110,683,434.77, while the existing design cost Rp. 17,588,537,219.38. So, the alternative model successfully reduces the cost of existing model up to 40.43% without changing the function of the building structure.
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References
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- MR Soltani, A. Bouchaïr, and M. Mimoune, “Nonlinear FE analysis of the ultimate behavior of steel castellated beams,”J Constr Steel Res, vol. 70, pp. 101–114, March. 2012.10.1016/j.jcsr.2011.10.016.
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References
JM Gere and BJ Goodno, “Mechanics of Materials,” 2012.
G. Paus, G. Seran, and AH Pattiraja, “Application of Value Engineering on Building Elements (Stairs) of the UPTP Kupang Job Training Center,” 2024.
D. Paunovic and J. Pawlowski, “The King's Cross station redevelopment of 6 Arup and King's Cross,” 2012.
ZS Makowski, “ANALYSIS, DESIGN AND CONSTRUCTION OF BRACED BARREL VAULTS,” 2006.
SS Fares, P. Eng, J. Coulson, and DW Dinehart, “AISC: Castellated and Cellular Beam Design 31 Steel Design Guide,” 2016.
L. Amayreh and MP Saka, “FAILURE LOAD PREDICTION OF CASTELLATED BEAMS USING ARTIFICIAL NEURAL NETWORKS,” 2005.
K. Bauer, M. Professor, and B. Zhang, “Design of castellated steel beams,” 2021.
K. Kuchta and M. Maslak, “FAILURE MODES DETERMINING THE RESISTANCE AND THE STABILITY OF STEEL CELLULAR BEAMS,” 2015.
MR Soltani, A. Bouchaïr, and M. Mimoune, “Nonlinear FE analysis of the ultimate behavior of steel castellated beams,”J Constr Steel Res, vol. 70, pp. 101–114, March. 2012.10.1016/j.jcsr.2011.10.016.
SNI 1727 - 2020, “Minimum design loads and related criteria for buildings and other structures,” 2020.
A. Setiawan, “STEEL STRUCTURE DESIGN USING LRFD METHOD,” 2013.