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Comparative numerical analysis for cost and embodied carbon optimisation of steel building structures

Eleftheriadis, S; Dunant, CF; Drewniok, MP; Rogers-Tizard, W; Kyprianou, C; (2018) Comparative numerical analysis for cost and embodied carbon optimisation of steel building structures. Advances in Computational Design , 3 (4) pp. 385-404. 10.12989/acd.2018.3.4.385. Green open access

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Abstract

The study investigated an area of sustainable structural design that is often overlooked in practical engineering applications. Specifically, a novel method to simultaneously optimise the cost and embodied carbon performance of steel building structures was explored in this paper. To achieve this, a parametric design model was developed to rapidly analyse code compliant structural configurations based on project specific constraints and rigorous testing of various steel beam sections, floor construction typologies (precast or composite) and column layouts that could not be performed manually by engineering practitioners. Detailed objective functions were embedded in the model to compute the cost and life cycle carbon emissions of different material types used in the structure. Results from a comparative numerical analysis of a real case study illustrated that the proposed optimisation approach could guide structural engineers towards areas of the solution space with realistic design configurations, enabling them to effectively evaluate trade-offs between cost and carbon performance. This significant contribution implied that the optimisation model could reduce the time required for the design and analysis of multiple structural configurations especially during the early stages of a project. Overall, the paper suggested that the deployment of automated design procedures can enhance the quality as well as the efficiency of the optimisation analysis.

Type: Article
Title: Comparative numerical analysis for cost and embodied carbon optimisation of steel building structures
Open access status: An open access version is available from UCL Discovery
DOI: 10.12989/acd.2018.3.4.385
Publisher version: https://doi.org/10.12989/acd.2018.3.4.385
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: structural optimisation; steel frames; cost; carbon; design
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10069940
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