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Sustainability
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Structural Engineering Simulation and Optimization for Sustainability
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Structural Engineering Simulation and Optimization for Sustainability

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 4406

Special Issue Editors

Dr. Majid Movahedi Rad

E-Mail Website
Guest Editor
Department of Structural and Geotechnical Engineering, Széchenyi István University, 9026 Győr, Hungary
Interests: optimal design of structures; structural simulation; reliability-based design; mathematical programming
Prof. Dr. János Lógó

E-Mail Website
Guest Editor
Department of Structural Mechanics, Budapest University of Technology and Economics, Budapest, Hungary
Interests: structural optimization; robust optimization under uncertainty; dynamically loaded structures; mathematical programming

Special Issue Information

Dear Colleagues,

With this Special Issue, we aim to provide a premier international platform for scholars, researchers, academics, and industry professionals to discuss and present the most prominent challenges and developments in structural engineering simulation and optimization for sustainability. This Special Issue is now open for the submission of novel and high-quality research contributions. These submissions can cover a wide range of topics—for example, computer-aided analysis and design, numerical simulation, structural shape and topology optimization, reliability-based design, stochastic structural control, optimal elastic–plastic design of structures, and algorithm and software development—though all associated with the field of engineering. We anticipate that this Special Issue will open the door for further advances in technology and research toward ensuring environmental sustainability in this important area.

Dr. Majid Movahedi Rad
Prof. Dr. János Lógó
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • computer-aided analysis and design
  • numerical simulation
  • structural shape and topology optimization
  • reliability-based design
  • stochastic structural control
  • optimal elastic–plastic design
  • algorithm and software development

Published Papers (3 papers)

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Research

23 pages, 18089 KiB  
Article
A Parametric BIM Framework to Conceptual Structural Design for Assessing the Embodied Environmental Impact
by Kitti Ajtayné Károlyfi and János Szép
Sustainability 2023, 15(15), 11990; https://doi.org/10.3390/su151511990 - 04 Aug 2023
Viewed by 1240
Abstract
Decisions made in the early design stage have a significant effect on a building’s performance and environmental impact. In practice, a conceptual design is performed by an architect, while a structural engineer begins to work in later phases when the architectural concept has [...] Read more.
Decisions made in the early design stage have a significant effect on a building’s performance and environmental impact. In practice, a conceptual design is performed by an architect, while a structural engineer begins to work in later phases when the architectural concept has already evolved. However, the geometry and form of a building directly determine the type of structure and applicable materials; therefore, the conceptual design phase gives rise to examining alternative solutions. This paper presents a method for generating alternative structural solutions in the conceptual design phase and examining their embodied environmental impact by integrating parametric design and building information modeling (BIM). Rhinoceros and Grasshopper were used to develop the parametric script, which includes the generation of geometrical variations, the automatic definition of initial cross sections for the load-bearing elements based on in-built structural design approximations, the datasets for embodied environmental impact of the used building materials, the generation of life cycle inventory (LCI), the automatic calculation of life cycle assessment (LCA) results based on the geometry, and the conversion of the parametric model into building information model. The method was demonstrated using a case study of 48 different alternative solutions for an unheated warehouse made of steel frames. Based on the results, the areas with the greatest energy impact were identified. The case study analysis also illustrated that the applied cross section may have a significant effect on the impact categories. The results draw attention to the complexity of LCA calculations even in the case of a simple structure containing a limited number of variables, where parametric design can serve as an effective tool for a comprehensive environmental impact assessment. Full article
(This article belongs to the Special Issue Structural Engineering Simulation and Optimization for Sustainability)
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19 pages, 9498 KiB  
Article
Reliability Assessment of Reinforced Concrete Beams under Elevated Temperatures: A Probabilistic Approach Using Finite Element and Physical Models
by János Szép, Muayad Habashneh, János Lógó and Majid Movahedi Rad
Sustainability 2023, 15(7), 6077; https://doi.org/10.3390/su15076077 - 31 Mar 2023
Cited by 10 | Viewed by 1590
Abstract
A novel computational model is proposed in this paper considering reliability analysis in the modelling of reinforced concrete beams at elevated temperatures, by assuming that concrete and steel materials have random mechanical properties in which those properties are treated as random variables following [...] Read more.
A novel computational model is proposed in this paper considering reliability analysis in the modelling of reinforced concrete beams at elevated temperatures, by assuming that concrete and steel materials have random mechanical properties in which those properties are treated as random variables following a normal distribution. Accordingly, the reliability index is successfully used as a constraint to restrain the modelling process. A concrete damage plasticity constitutive model is utilized in this paper for the numerical models, and it was validated according to those data which were gained from laboratory tests. Detailed comparisons between the models according to different temperatures in the case of deterministic designs are proposed to show the effect of increasing the temperature on the models. Other comparisons are proposed in the case of probabilistic designs to distinguish the difference between deterministic and reliability-based designs. The procedure of introducing the reliability analysis of the nonlinear problems is proposed by a nonlinear code considering different reliability index values for each temperature case. The results of the proposed work have efficiently shown how considering uncertainties and their related parameters plays a critical role in the modelling of reinforced concrete beams at elevated temperatures, especially in the case of high temperatures. Full article
(This article belongs to the Special Issue Structural Engineering Simulation and Optimization for Sustainability)
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19 pages, 21351 KiB  
Article
Optimal Elasto-Plastic Analysis of Prestressed Concrete Beams by Applying Residual Plastic Deformation Limitations
by Sarah Khaleel Ibrahim and Majid Movahedi Rad
Sustainability 2023, 15(7), 5742; https://doi.org/10.3390/su15075742 - 24 Mar 2023
Viewed by 1055
Abstract
This work introduces elasto-plastic analysis of prestressed reinforced concrete beams under different prestressing conditions by limiting the residual plastic behaviour inside the steel bars using complementary strain energy. A non-linear optimal method was used to limit residual plastic deformations in steel bars, including [...] Read more.
This work introduces elasto-plastic analysis of prestressed reinforced concrete beams under different prestressing conditions by limiting the residual plastic behaviour inside the steel bars using complementary strain energy. A non-linear optimal method was used to limit residual plastic deformations in steel bars, including prestressed tendons, used to reinforce beams from two previous research investigations. This was considered by using an optimization approach with an objective function to find the maximum loading while applying constraints on the complementary strain energy of residual internal forces in steel elements to control residual plastic deformations. Thus, an elasto-plastic optimization programme was linked to models simulated by ABAQUS, as concrete was calibrated by the concrete damage plasticity (CDP) model. Some variables were considered regarding the force applied inside prestressed tendons and the number of tendons used inside the models. Thus, limits on complementary strain energy affected load values and model damage where an increase in the permissible strain energy value leads to an increase in the corresponding loading values produced; thus, this produces a higher stress intensity in steel and tension-damaged areas in concrete. Based on these data, many comparisons have been made to determine when beams behaved elastically and how they turned into plastic. Full article
(This article belongs to the Special Issue Structural Engineering Simulation and Optimization for Sustainability)
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