Minimisation of embodied energy in three-dimensional steel framed structures using two optimisation techniques

Buildings and the construction industry contribute up to 30% of yearly greenhouse gas (GHG) emissions worldwide. Construction carbon emissions are generally categorised into operating carbon and embodied carbon, each making varying contributions to the life cycle carbon depending on the building’s c...

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Bibliographic Details
Main Authors: Mohammad, Fouad A., Alkhadashi, Abdalhakem
Format: Conference Proceeding
Language:English
Subjects:
Building codes
Carbon
Construction industry
Emissions
Frame structures
Greenhouse gases
Particle swarm optimization
Search algorithms
Steel frames
Steel structures
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Summary:Buildings and the construction industry contribute up to 30% of yearly greenhouse gas (GHG) emissions worldwide. Construction carbon emissions are generally categorised into operating carbon and embodied carbon, each making varying contributions to the life cycle carbon depending on the building’s characteristics. This study investigates the optimum design of three-dimensional steel framed structures. A comprehensive, detailed objective function was formulated for the lifecycle embodied energy. This function considers different life cycle phases: material extraction, material processing and component fabrication, transportation, and erection. A single-objective optimisation was performed by employing two different optimisation techniques known as Harmony Search Algorithm (HSA) and Particle Swarm Optimisation (PSO) methods. These are embedded into a bespoke code written in MATLAB. The imposed behavioural constraints, in the optimum design process, were set according to the provisions of Eurocode 3 (EC3). Three design problems were investigated to demonstrate the efficiency and robustness of the proposed methods.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0196336