Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 76 for “"Embodied Carbon"”.
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Minimising Embodied Carbon in Concrete Floors
… forms, and optimising shapes can reduce the embodied carbon of steel-reinforced concrete floors. Four interconnected optimisation studies are illustrated in this thesis: (1) shape optimisation of reinforced concrete beams using a parametric design approach to achieve practical and technically …
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Multi-Material Continuum Topology Optimization for Embodied Carbon Objectives
… and practical interest that seek to lower the carbon footprint of infrastructure and building design. Typically, carbon emissions from the built environment are divided into two categories: operational emissions and embodied carbon. Over the past decades, most work has focused on lowering the …
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Minimising embodied carbon in buildings: Uncertainty during early-stage design
… There are significant challenges with the decarbonisation of concrete, particularly cement, due to the release of carbon dioxide emissions during clinker production. Therefore, strategies to reduce embodied carbon in concrete buildings should aim to focus on material efficiency efforts first. …
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Thin shell foundations: Embodied carbon reduction through materially efficient geometry
… to 1.5ºC above pre-industrial levels, reducing embodied carbon will play a key role and business-as usual construction processes must be reconsidered. This research aims to reduce carbon emissions associated with reinforced concrete structural elements while addressing the need for a significant …
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Accuracy of embodied carbon estimation during early-stage structural design
The embodied carbon of the built environment accounts for approximately 11% of the planet’s annual carbon emissions and is projected to increase significantly as an additional 2.5 billion people are expected to be living in cities by 2050. In recent years, a number of tools have been developed to …
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Embodied Carbon Reduction in British Columbia Municipalities’ New Residential Development Projects
… action plans regarding standards for reducing embodied carbon in new residential developments, municipal buildings, and infrastructure projects. This thesis explores local governments’ policies related to embodied carbon in the design, construction, and end-of-life dismantling of new and …
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Truss topology optimization of steel-timber structures for embodied carbon objectives
… in the algorithm that timber has a smaller embodied carbon coefficient (ECC) compared to steel. This work uses the ground structure approach to truss topology optimization and designs are generated and compared using (i) a minimum compliance and (ii) a stress-constrained algorithm.
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Minimizing embodied carbon in multi-material structural optimization of planar trusses
… energy efficient design that reduces carbon emissions. However, until recently, most efforts have focused only on reducing operational carbon [1]. As a result, the carbon embodied in construction materials, especially in a building's structural system, is becoming a larger contributor …
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Embodied carbon: A framework for prioritizing and reducing emissions in the building industry
… known to be one of the largest contributors to carbon emissions—one of the key causes of climate change. Embodied carbon emissions of buildings are an often overlooked, but significant, influencer of a building’s overall carbon footprint. This gives rise to the need for improved life cycle …
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Structural analysis at scale: Computational modeling of embodied carbon in complex floor layouts
… of this analysis find improvements in structural embodied carbon of up to 53.4% over the business-as-usual design case, and also yield generalizable takeaways about the key factors influencing material efficiency in floor slabs. One of the advantages of the method is its flexibility in taking on a …
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Sustainability in the built environment : the embodied carbon of steelwork in non-residential building structures
… describes a doctoral research undertaken on the embodied carbon of steelwork used in non-residential buildings. The broad area of sustainable development in the built environment is reviewed first and a reasoned rationale for the narrowing of the research topic to structural steelwork provided. …
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Improved structural, embodied carbon and cost efficiency of single storey industrial buildings using sandwich panels
… improved capabilities of panels, may reduce the embodied carbon of building structures, and indeed of whole buildings. The research focused on single-storey industrial buildings. A series of studies were undertaken to evaluate the opportunities, and to quantify the benefits and trade-offs …
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Physics-based Estimates of Structural Material Quantities for Urban-level Embodied Carbon Assessment in Buildings
Decarbonizing the built environment requires immediate actions to meet global climate targets. The world population growth and rapid urbanization rate add to the urgency of this challenge. In fact, buildings account for about 40% of all energy and carbon emissions from operations and materials’ …
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Barriers to the use of computational tools for embodied carbon reduction in structural engineering practice
There is an immediate need to decrease carbon emissions to minimize the impacts of climate change, and building materials, which in 2019 accounted for 10% of global carbon emissions, have an important role to play in this reduction. As key stakeholders in the building design process, structural …
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A Framework for Benchmarking and Monitoring Building Construction Embodied Carbon Footprint using Building Information Models
… little incentive exists for suppliers to provide embodied carbon footprint rates, and similarly, for contractors to balance project costs, schedule objectives with the corresponding environmental impact. To address these challenges, we propose and develop a new framework that applies BIM for …
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Leveraging design to build with less: Evaluating the embodied carbon reduction potential of architectural design across scales
Reducing embodied carbon (EC) in structural systems -- the most significant contributor to EC in a building -- is urgent to address the simultaneous need to reduce global warming and increase urban density. Much of the policy and research to date to reduce EC has focused on material-scale …
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Analysis of the embodied carbon emissions flows in China: applying a network perspective to sectors, provinces, and carbon communities within the Chinese economy
… the economy are being examined. China’s current carbon emissions mitigation research focus mainly on the two ends of the industrial supply chain: production and consumption. Most of the intermediate industries between these two ends are presently being overlooked. Research into the ways in which …
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Low carbon pathways for structural design : embodied life cycle impacts of building structures
… of buildings include not only operational carbon due to their use phase, but also embodied carbon due to the rest of their life cycle: material extraction, transport to the site, construction, and demolition. With ongoing population growth and increasing urbanization, decreasing immediate …
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An assessment methodology for enviro-economic justification of low and zero carbon technologies
The imperative to reduce the carbon footprint of buildings will inevitably require adopting higher levels of insulation and on-site low and zero carbon technologies. This will significantly increase the embodied carbon of materials and products that have been used in the building. With buildings …
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Design optimization of two-way spanning concrete systems for low-carbon, context-informed construction
… of global CO₂ emissions. Within these emissions, embodied carbon of construction materials is substantial. Two broad strategies to reduce embodied carbon are materials substitution and geometric optimization. This dissertation focuses on the latter, presenting strategies to reduce embodied carbon …
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