A Hybrid Fuzzy DEMATEL-DANP-TOPSIS Framework for Life Cycle-Based Sustainable Retrofit Decision-Making in Seismic RC Structures

[EN] Seismic retrofitting of reinforced concrete (RC) structures is essential for improving resilience and extending service life, particularly in regions with outdated building codes. However, selecting the optimal retrofitting strategy requires balancing multiple interdependent sustainability crit...

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Detalhes bibliográficos
Autores: Villalba, Paola, Sánchez-Garrido, Antonio J., Yepes-Bellver, Lorena|||0009-0002-8820-2979, Yepes, V.|||0000-0001-5488-6001
Tipo de documento: artigo
Data de publicação:2025
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositório:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglês
OAI Identifier:oai:riunet.upv.es:10251/230216
Acesso em linha:https://riunet.upv.es/handle/10251/230216
Access Level:Acceso aberto
Palavra-chave:Fuzzy MCDM
DEMATEL-ANP
Life cycle assessment
Seismic retrofit
Sustainability
Uncertainty modeling
Circular economy
Reinforced concrete
Decision-making
Multi-criteria analysis
09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación
Descrição
Resumo:[EN] Seismic retrofitting of reinforced concrete (RC) structures is essential for improving resilience and extending service life, particularly in regions with outdated building codes. However, selecting the optimal retrofitting strategy requires balancing multiple interdependent sustainability criteria¿economic, environmental, and social¿under expert-based uncertainty. This study presents a fuzzy hybrid multi-criteria decision-making (MCDM) approach that combines DEMATEL, DANP, and TOPSIS to represent causal interdependencies, derive interlinked priority weights, and rank retrofit alternatives. The assessment applies three complementary life cycle-based tools¿cost-based, environmental, and social sustainability analyses following LCCA, LCA, and S-LCA frameworks, respectively¿to evaluate three commonly used retrofitting strategies: RC jacketing, steel jacketing, and carbon fiber-reinforced polymer (CFRP) wrapping. The fuzzy-DANP methodology enables accurate modeling of feedback among sustainability dimensions and improves expert consensus through causal mapping. The findings identify CFRP as the top-ranked alternative, primarily attributed to its enhanced performance in both environmental and social aspects. The model¿s robustness is confirmed via sensitivity analysis and cross-method validation. This mathematically grounded framework offers a reproducible and interpretable tool for decision-makers in civil infrastructure, enabling sustainability-oriented retrofitting under uncertainty.