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Dissertation
Travail de Fin d'Etudes : Economic benefit in using high performance materials for steel-concrete composite columns in the field of building structures
Authors: --- --- --- ---
Year: 2020 Publisher: Liège Université de Liège (ULiège)

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Abstract

This work aims to assess the economic benefit of using high strength steel (S460) and/or high performance concrete (C50/60) in composite steel-concrete columns. The use of high performance materials (HS materials) leads in particular to a reduction in the quantity of raw material, with equal loading. This implies the construction of a lighter structure or, while retaining the same section dimensions, structures with greater spans. The complexity of the economic interest assessment lies in the fact that many elements are involved, such as the steel profile, concrete, rebar, stirrups, labor, etc. Consequently, the variation in the quantity of raw material of concrete and steel, being the main factor of the presence or not of an economic benefit, does not fully explain the results. Two studies concerning the study of the economic benefit of high performance steel have already been carried out at the University of Liege: one concerning composite structures and the other concerning steel structures. These studies have in common the fact that they only considered HS steels. Consequently, the objective of this thesis is on the one hand, to integrate HS concrete in an economic study of this kind and on the other hand, to extend research for HS steels. Consequently, the designer can, on the basis of this work, determine if there is an economic benefit in using HS materials for a composite column or not, for a column length and a compression load known.


Book
Assessment of Energy–Environment–Economy Interrelations
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ISBN: 3039288105 3039288091 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Energy consumption and economic growth have been of great interest to researchers and policy-makers. Knowing the actual causal relationship between energy and the economy with respect to environmental degradation has important implications for modeling environmental and growth policies. The eleven chapters included herein aim to help researchers, academicians, and especially decision-makers to understand relevant issues and adopt appropriate methods to tackle and solve relevant environmental problems. Various methods from different disciplines are proposed and applied to various environmental and energy issues.


Book
Sustainable Agricultural Engineering Technologies and Applications
Authors: --- --- ---
ISBN: 3036558896 303655890X Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This reprint is a continuation of our previous reprint “Sustainable agricultural, biological, and environmental engineering applications” [ISBN 978-3-0365-2921-9], which was published in January 2022. The reprint contains research and review works focused on agricultural engineering technologies and applications. In this regard, the reprint covers topics including agricultural storage, quality evaluation of fruits, evaporative cooling and desiccant systems, solar coffee roasting, solar yogurt processing, greenhouse environment, greenhouse ventilation, greenhouse thermal requirements, aquaculture production system, bioreactor landfill, waste management, fertilization reduction in agriculture, sustainable porous surfaces, simulation and modeling, artificial intelligence, and machine learning. Such agricultural engineering studies are urgently needed in the 21st century, particularly from the perspective of the agriculture–energy–food security nexus.

Keywords

Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- greenhouse --- microclimate --- Bayesian optimization --- deep neural network --- roses yield --- Gaussian process --- gradient boosting --- pool boiling heat transfer coefficient --- sintered coated porous surfaces --- gaussian process --- gradient boosting regression trees --- response surface --- renovation index --- CFD simulation --- airflow --- evaporative cooling --- desiccant dehumidification --- agricultural storage --- air conditioning --- system performance --- lemon cordial --- microwave --- preservation --- green processing --- antioxidant potential --- renewable energy --- Scheffler concentrator reflector --- batch-type solar roaster --- response surface methodology --- coffee roasting --- municipal solid waste --- sanitary landfill --- open dumps --- waste to energy --- climate change --- yogurt processing --- solar energy --- solar-based heating and cooling --- thermal analysis --- vegetable yield --- nitrogen use efficiency --- nutrient leaching --- leaching-to-input ratio --- nitrogen fertilizer economic benefit --- environment --- eutrophication --- particulate fraction --- effluent --- treatment --- thermal screens --- heating demand --- TRNSYS --- greenhouse internal temperature --- building energy simulation --- longwave radiation --- soil total nitrogen --- BP neural network --- support vector machines --- spatial distribution --- remote sensing


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.

Keywords

History of engineering & technology --- strength --- yielding capping and ultimate deformation --- RC column --- cyclic test database --- artificial neural network --- bi-linear and tri-linear lumped plasticity model --- columns --- cyclic behavior --- low height-to-depth ratio --- modeling parameters --- calibration --- SPSW --- axial compression ratio --- hole size --- thickness of stiffening plate --- hole position --- hysteretic performance --- FEM (Finite Element Method) --- DYNA6 --- soil-structure interaction --- soil-pile dynamic stiffness --- retrofitting --- viscous dampers --- optimum design --- collapse-resistant capacity --- economic benefit --- sustainability --- steel reinforced concrete --- joint --- post critical --- moment-curvature --- nonlinear --- frame model --- multi-story steel frames --- self-centering bracing elements --- buckling-restrained brace (BRB) --- seismic analysis --- earthquake/seismic forces --- seismic damage --- mold transformer --- shaking table test --- non-structural elements --- dynamic characteristics --- ground motion --- earthquake --- response history analysis --- station --- seismicity --- machine learning --- structural types --- decision forest --- self-training procedures --- city-scale seismic damage simulation --- numerical models --- model parameter --- analysis algorithm --- seismic performance evaluation --- seismic risk --- seismic hazard --- seismic force resisting system --- energy dissipater --- seismic design --- nonlinear response


Book
Agricultural Diversification
Authors: --- --- --- ---
Year: 2022 Publisher: Basel : MDPI - Multidisciplinary Digital Publishing Institute,

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Agricultural diversification can occur in many forms (e.g., genetic variety, species, structural) and can be created temporally and over different spatially scales (e.g., within crop, within field, and landscape level). Crop diversification is the practice of growing more than one crop species within a farming area in the form of rotations (two or more crops on the same field in different years), multiple crops (more than one crop in the same season on the same field) or intercropping (at least two crops simultaneously on the same field).Various cropping strategies and management practices, such as diversification of cropping systems by crop rotation, conservation tillage, and the use of cover crops, have been promoted to enhance crop productivity and ecosystem services. However, the opportunities and means differ among regions and the actual effects of diversification on cropping system sustainability still need more investigation.This Special Issue covers the state-of-the-art and recent progress in different aspects related to agricultural diversification to increase the sustainability and resilience of a wide range of cropping systems (grassland, horticultural crops, fruit trees) and in a scenario of environmental challenges due to climate change: Crop production and quality; Impact of crop diversification on soil quality and biodiversity; Environmental impact and delivery of ecosystem services by crop diversification.


Book
Agricultural Diversification
Authors: --- --- --- ---
Year: 2022 Publisher: Basel : MDPI - Multidisciplinary Digital Publishing Institute,

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Agricultural diversification can occur in many forms (e.g., genetic variety, species, structural) and can be created temporally and over different spatially scales (e.g., within crop, within field, and landscape level). Crop diversification is the practice of growing more than one crop species within a farming area in the form of rotations (two or more crops on the same field in different years), multiple crops (more than one crop in the same season on the same field) or intercropping (at least two crops simultaneously on the same field).Various cropping strategies and management practices, such as diversification of cropping systems by crop rotation, conservation tillage, and the use of cover crops, have been promoted to enhance crop productivity and ecosystem services. However, the opportunities and means differ among regions and the actual effects of diversification on cropping system sustainability still need more investigation.This Special Issue covers the state-of-the-art and recent progress in different aspects related to agricultural diversification to increase the sustainability and resilience of a wide range of cropping systems (grassland, horticultural crops, fruit trees) and in a scenario of environmental challenges due to climate change: Crop production and quality; Impact of crop diversification on soil quality and biodiversity; Environmental impact and delivery of ecosystem services by crop diversification.


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.


Book
Advanced Methods for Seismic Performance Evaluation of Building Structures
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue was created to collect the most recent and novel research on seismic performance evaluation of building structures. This issue includes three important topics on seismic engineering for building structures: (1) seismic design and performance evaluation, (2) structural dynamics, and (3) seismic hazard and risk analysis. To protect building structures from earthquakes, it is necessary to conduct seismic performance evaluations on structures with reliable methods and to retrofit these structures appropriately using the results of the seismic performance evaluation.

Keywords

History of engineering & technology --- strength --- yielding capping and ultimate deformation --- RC column --- cyclic test database --- artificial neural network --- bi-linear and tri-linear lumped plasticity model --- columns --- cyclic behavior --- low height-to-depth ratio --- modeling parameters --- calibration --- SPSW --- axial compression ratio --- hole size --- thickness of stiffening plate --- hole position --- hysteretic performance --- FEM (Finite Element Method) --- DYNA6 --- soil-structure interaction --- soil-pile dynamic stiffness --- retrofitting --- viscous dampers --- optimum design --- collapse-resistant capacity --- economic benefit --- sustainability --- steel reinforced concrete --- joint --- post critical --- moment-curvature --- nonlinear --- frame model --- multi-story steel frames --- self-centering bracing elements --- buckling-restrained brace (BRB) --- seismic analysis --- earthquake/seismic forces --- seismic damage --- mold transformer --- shaking table test --- non-structural elements --- dynamic characteristics --- ground motion --- earthquake --- response history analysis --- station --- seismicity --- machine learning --- structural types --- decision forest --- self-training procedures --- city-scale seismic damage simulation --- numerical models --- model parameter --- analysis algorithm --- seismic performance evaluation --- seismic risk --- seismic hazard --- seismic force resisting system --- energy dissipater --- seismic design --- nonlinear response


Book
Agricultural Diversification
Authors: --- --- --- ---
Year: 2022 Publisher: Basel : MDPI - Multidisciplinary Digital Publishing Institute,

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Abstract

Agricultural diversification can occur in many forms (e.g., genetic variety, species, structural) and can be created temporally and over different spatially scales (e.g., within crop, within field, and landscape level). Crop diversification is the practice of growing more than one crop species within a farming area in the form of rotations (two or more crops on the same field in different years), multiple crops (more than one crop in the same season on the same field) or intercropping (at least two crops simultaneously on the same field).Various cropping strategies and management practices, such as diversification of cropping systems by crop rotation, conservation tillage, and the use of cover crops, have been promoted to enhance crop productivity and ecosystem services. However, the opportunities and means differ among regions and the actual effects of diversification on cropping system sustainability still need more investigation.This Special Issue covers the state-of-the-art and recent progress in different aspects related to agricultural diversification to increase the sustainability and resilience of a wide range of cropping systems (grassland, horticultural crops, fruit trees) and in a scenario of environmental challenges due to climate change: Crop production and quality; Impact of crop diversification on soil quality and biodiversity; Environmental impact and delivery of ecosystem services by crop diversification.


Book
Sustainable Environmental Solutions
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book collects research activities focused on the development of new processes to replace obsolete practices that are often highly invasive, unsustainable, and socially unacceptable.Taking inspiration from real problems and the need to face real cases of contamination or prevent potentially harmful situations, the development and optimization of ‘smart’ solutions, i.e., sustainable not only from an environmental point of view but also economically, are discussed in order to encourage, as much as possible, their actual implementation.

Keywords

Environmental science, engineering & technology --- water resources --- virtual water trade --- input-output method --- Gansu province --- ecological consumption --- influencing factors --- panel regressions --- ecological footprint --- innovative envelope --- building components --- green roofs --- indoor comfort --- energy consumption --- building modelling --- simulation models --- chitosan --- chromium --- heavy metals --- adsorption --- kinetics --- low-cost adsorbent --- tannery --- ion exchange --- nanobubbles --- contaminated soil --- electrokinetic --- in situ --- remediation --- Spinacia oleracea microbiota --- electrochemically activated solution --- peroxyacetic acid --- sanitization --- 16s rRNA pyrosequencing --- amplicon sequence variants --- alpha diversity --- bacterial community composition --- sedimentation --- drag --- fractal aggregates --- shear-thinning --- non-Newtonian fluids --- suspensions --- numerical simulations --- environmental impact --- waste management --- industrial production --- investment project --- risk evaluation --- multicriterial approach --- production planning --- carbon regulation --- reconditioning --- green logistics --- optimization --- drinking water treatment plant --- advection–diffusion–reaction --- chlorine dosage --- simulator validation --- industrial application --- biodegradation --- dehalogenase-producing bacteria --- haloalkanoic acids --- trichloroacetic acid --- 16S rRNA --- Lysinibacillus --- building energy efficiency --- European environmental brands --- tourism sector --- agritourism --- nearly zero energy buildings (nZEB) --- submerged marine debris --- economic valuation --- contingent valuation --- economic benefit --- willingness to pay --- proecological behavior --- circular economy --- environmental management --- survey --- nonparametric methods --- serpentinite --- magnesium oxide --- calcination --- particle size distribution --- specific surface area --- magnesium potassium phosphate matrix --- radioactive waste --- immobilization --- hydrolytic stability --- strength --- pH-neutral electrochemically activated solution --- total bacterial count --- Salmonella Enteritidis --- egg cuticle integrity --- soil remediation --- soil contamination --- greenhouse --- phytoextraction --- mobilizing agents --- photosynthetic efficiency --- photovoltaics --- luminescent dyes --- energy savings --- sustainability --- cork–graphite electrode --- electrochemistry --- lead --- environmental application --- environmental pollution and remediation --- hazardous waste management --- soil and water reclamation --- nanomaterials --- sustainable processes

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