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R. Cucuzza¹, M. Domaneschi¹, R. Di Bari², M. Movahedi Rad³, G. Milani⁴ and G.C. Marano¹

¹Department of Structural, Geotechnical and Building Engineering (DISEG), Politecnico di Torino, Torino, Italy
²School of Civil Engineering, University of Birmingham, United Kingdom
³Department of Structural and Geotechnical Engineering, Széchenyi István University, Győr, Hungary
⁴Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Italia

doi:10.4203/ccc.9.4.7

R. Cucuzza, M. Domaneschi, R. Di Bari, M. Movahedi Rad, G. Milani, G.C. Marano, "Integration of Life Cycle Assessment in Structural Optimisation of Steel Structures", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.7, 2024, doi:10.4203/ccc.9.4.7

Keywords: life-cycle-assessment, multi-criteria, steel, constructability, truss, structural optimization.

Abstract

Lowering environmental impacts has lately been a critical objective of structural optimisation due to the significant amount of greenhouse gas emissions in the civil engineering sector. This work introduces a Life Cycle Assessment based multi-objective optimisation framework for the optimal design of mixed steel-timber structures by varying the building design’s size, shape, and topology. The study’s novelty stems from the integration of an environmental objective function in the early design process, based on Life Cycle Assessment methodology and standard environmental indicators, and the definition of a structural target function where a penalty-based approach is implemented for reducing structural complexity in situ. The structural cost and the Global Warming Potential are the objective functions of the optimisation problem. The analysis outcomes show a mass-saving of almost 20% and a significant reduction of Global Warming Potential emissions equal to 50% when steel-timber mixed designs are preferred to steel-only configurations.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 9 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 4.7 Integration of Life Cycle Assessment in Structural Optimisation of Steel Structures R. Cucuzza¹, M. Domaneschi¹, R. Di Bari², M. Movahedi Rad³, G. Milani⁴ and G.C. Marano¹ ¹Department of Structural, Geotechnical and Building Engineering (DISEG), Politecnico di Torino, Torino, Italy ²School of Civil Engineering, University of Birmingham, United Kingdom ³Department of Structural and Geotechnical Engineering, Széchenyi István University, Győr, Hungary ⁴Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Italia doi:10.4203/ccc.9.4.7 Full Bibliographic Reference for this paper R. Cucuzza, M. Domaneschi, R. Di Bari, M. Movahedi Rad, G. Milani, G.C. Marano, "Integration of Life Cycle Assessment in Structural Optimisation of Steel Structures", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.7, 2024, doi:10.4203/ccc.9.4.7 Keywords: life-cycle-assessment, multi-criteria, steel, constructability, truss, structural optimization. Abstract Lowering environmental impacts has lately been a critical objective of structural optimisation due to the significant amount of greenhouse gas emissions in the civil engineering sector. This work introduces a Life Cycle Assessment based multi-objective optimisation framework for the optimal design of mixed steel-timber structures by varying the building design’s size, shape, and topology. The study’s novelty stems from the integration of an environmental objective function in the early design process, based on Life Cycle Assessment methodology and standard environmental indicators, and the definition of a structural target function where a penalty-based approach is implemented for reducing structural complexity in situ. The structural cost and the Global Warming Potential are the objective functions of the optimisation problem. The analysis outcomes show a mass-saving of almost 20% and a significant reduction of Global Warming Potential emissions equal to 50% when steel-timber mixed designs are preferred to steel-only configurations. download the full-text of this paper (PDF, 13 pages, 622 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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