Minimising embodied carbon in reinforced concrete beams
نویسندگان
چکیده
• Parametric design of prismatic concrete beams reduces embodied carbon by up to 38%. Further savings 8% are possible with parametric shape optimisation. Optimum designs for a given span vary criteria. Estimating deflections alongside optimisation algorithm expands the space. The construction industry has received attention due its significant contribution global emissions. In this paper, conventional and practices reinforced scrutinised explore potential reductions in carbon. For set criteria, family discrete beam which have different geometries corresponding reinforcements were developed identify those minimum Two algorithms developed, one geometry theoretical optimum design, another considering technical feasibility. Prismatic also optimised exploring alternative depths widths along required reinforcements, reasonable comparison. Several cases studied understand effect parameters. Different criteria suggested minimise carbon, even if was same. importance minimising web width seen throughout analysis. expected deflection each estimated on serviceability performance found be satisfactory all cases. Embodied can reduced 38% optimising compared designs. feasible beams.
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ژورنال
عنوان ژورنال: Engineering Structures
سال: 2021
ISSN: ['0141-0296', '1873-7323']
DOI: https://doi.org/10.1016/j.engstruct.2021.112590