Nonlinear evaluation of reliability-based topology optimization of concrete deep beams
Abstract Uncertainty has long been a recognized aspect of engineering analysis and design. This inherent unpredictability is typically represented by variability and randomness. In this context, a linear elastic topology optimization (TO) approach with reliability constraints is presented. This met...
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Instituto Brasileiro do Concreto (IBRACON)
2025-05-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000300204&lng=en&tlng=en |
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| _version_ | 1849325522352340992 |
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| author | Rodrigo Reis Amaral Jorge Luis Palomino Tamayo Liércio André Isoldi Herbert Martins Gomes |
| author_facet | Rodrigo Reis Amaral Jorge Luis Palomino Tamayo Liércio André Isoldi Herbert Martins Gomes |
| author_sort | Rodrigo Reis Amaral |
| collection | DOAJ |
| description | Abstract Uncertainty has long been a recognized aspect of engineering analysis and design. This inherent unpredictability is typically represented by variability and randomness. In this context, a linear elastic topology optimization (TO) approach with reliability constraints is presented. This method uses an outer loop for the optimization and an inner loop for the reliability analysis. The TO procedure based on the Bidirectional Evolutionary Structural Optimization (BESO) was developed to minimize the structure’s concrete compliance and, consequently, reduce the weight for a given reliability index constraint. Failure criterion, such as Ottosen's four-parameter surface is used to check the stress level in the computational domain. Moreover, a nonlinear finite element analysis for the resulting structure is developed in commercial software. The scope here is to conduct a comparative analysis between a reference deep beam from the literature and the optimized topologies to determine the ultimate strength capacity and assess how material reduction affects the failure mode and ultimate load. Results demonstrate resource-efficient and reliable designs with similar structural performance when compared to traditional concrete structures. |
| format | Article |
| id | doaj-art-9f3ae7bedc5e420f86b1a6f04d7c17c3 |
| institution | Kabale University |
| issn | 1983-4195 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj-art-9f3ae7bedc5e420f86b1a6f04d7c17c32025-08-20T03:48:23ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952025-05-0118310.1590/s1983-41952025000300002Nonlinear evaluation of reliability-based topology optimization of concrete deep beamsRodrigo Reis Amaralhttps://orcid.org/0000-0001-9035-5806Jorge Luis Palomino Tamayohttps://orcid.org/0000-0002-6301-7008Liércio André Isoldihttps://orcid.org/0000-0002-9337-3169Herbert Martins Gomeshttps://orcid.org/0000-0001-5635-1852 Abstract Uncertainty has long been a recognized aspect of engineering analysis and design. This inherent unpredictability is typically represented by variability and randomness. In this context, a linear elastic topology optimization (TO) approach with reliability constraints is presented. This method uses an outer loop for the optimization and an inner loop for the reliability analysis. The TO procedure based on the Bidirectional Evolutionary Structural Optimization (BESO) was developed to minimize the structure’s concrete compliance and, consequently, reduce the weight for a given reliability index constraint. Failure criterion, such as Ottosen's four-parameter surface is used to check the stress level in the computational domain. Moreover, a nonlinear finite element analysis for the resulting structure is developed in commercial software. The scope here is to conduct a comparative analysis between a reference deep beam from the literature and the optimized topologies to determine the ultimate strength capacity and assess how material reduction affects the failure mode and ultimate load. Results demonstrate resource-efficient and reliable designs with similar structural performance when compared to traditional concrete structures.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000300204&lng=en&tlng=enFORMUHPFRCnonlinear analysisRBDOReliability Index Approach |
| spellingShingle | Rodrigo Reis Amaral Jorge Luis Palomino Tamayo Liércio André Isoldi Herbert Martins Gomes Nonlinear evaluation of reliability-based topology optimization of concrete deep beams Revista IBRACON de Estruturas e Materiais FORM UHPFRC nonlinear analysis RBDO Reliability Index Approach |
| title | Nonlinear evaluation of reliability-based topology optimization of concrete deep beams |
| title_full | Nonlinear evaluation of reliability-based topology optimization of concrete deep beams |
| title_fullStr | Nonlinear evaluation of reliability-based topology optimization of concrete deep beams |
| title_full_unstemmed | Nonlinear evaluation of reliability-based topology optimization of concrete deep beams |
| title_short | Nonlinear evaluation of reliability-based topology optimization of concrete deep beams |
| title_sort | nonlinear evaluation of reliability based topology optimization of concrete deep beams |
| topic | FORM UHPFRC nonlinear analysis RBDO Reliability Index Approach |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000300204&lng=en&tlng=en |
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