20.500.12556/DKUM-88314 Sustainable design of circular reinforced concrete column sections via multi-objective optimization An optimization model for reinforced concrete circular columns based on the Eurocodes is presented. With the developed optimization model, which takes into account the exact distribution of the steel reinforcement, which is not the case when designing with conventional column design charts, an optimal design for the reinforced concrete cross section is determined. The optimization model uses discrete variables, which makes the results more suitable for actual construction practice and fully exploits the structural capacity of the structure. A parametric study of the applied axial load and bending moment was performed for material cost and CO2 emissions. The results based on a single objective function show that the optimal design of the reinforced concrete column cross section obtained for the material cost objective function contains a larger cross-sectional area of concrete and a smaller area of steel compared with the optimization results when CO2 emissions are determined as the objective function. However, the optimal solution in the case where the material cost was assigned as the objective function has much more reserve in axial load capacity than in the optimal design where CO2 was chosen as the objective function. In addition, the multi-objective optimization was performed to find a set of solutions that provide the best trade-offs between the material cost and CO2 emission objectives. reinforced concrete columns circular cross section costs CO2 emissions multi-objective optimization genetic algorithm armiranobetonski stebri krožni prerez stroški CO2 emisije večkriterijska optimizacija genetski algoritem true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/sustainability Članek v reviji 2024-04-15 12:28:00 2024-04-15 12:28:05 2024-04-16 03:53:26 0000-00-00 00:00:00 2023 0 0 19 str. iss. 15, [article no.] 11689 Vol. 15 July 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-06-05 2023-07-27 2023-07-28 691:004.42 161161475 10.3390/su151511689 2071-1050 sustainability-15-11689.pdf sustainability-15-11689.pdf 1 7467C5E588C0D79EAE321F4E6C97BA1F 69c585ec4e17cf8f1a00c72b0441046bac858e512d3f5e8269491054c9cac7a0 f587b2f0-fb13-11ee-8f8b-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=178556 https://www.mdpi.com/2071-1050/15/15/11689 0 07d3a740-fb14-11ee-8f8b-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=178557 Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo 0 0 0