{"title":"In-plane shear behaviour by diagonal-compression testing of damaged masonry walls strengthened with carbon-glass hybrid textile reinforced concrete","authors":"Fenghao Qu , Shiping Yin , Huarui Liu","doi":"10.1016/j.engstruct.2025.120009","DOIUrl":null,"url":null,"abstract":"<div><div>In the realm of masonry structures, walls—serving as the primary load-bearing components—exhibit significant susceptibility to damage during seismic events owing to their inherent brittleness. To enhance the shear performance of damaged walls, diagonal compression tests were performed on damaged specimens reinforced with textile reinforced concrete (TRC). This study meticulously examines various factors, including the extent of damage, reinforcement strategies, the number of textile layers, and the anchoring of the surface layer, while exploring the mechanisms through which TRC enhances the shear performance of damaged walls. The findings indicate that post-repair specimens predominantly exhibited diagonal tensile failures. Repairs utilizing a single-sided, two-layer textile demonstrated a degree of out-of-plane bending, whereas dual-sided reinforcement produced the most pronounced improvements in performance. Moreover, the shear strength, ductility, and energy dissipation exhibited significant enhancements within a specific range as the number of textile layers increased. Notably, improvements in mechanical performance parameters were modest in severely damaged specimens, whereas they remained comparable between slightly damaged and intact specimens. Anchoring effectively alleviated the out-of-plane bending associated with single-sided repairs, thereby enhancing shear performance. Ultimately, a comparative analysis of the experimental results against analytical models for reinforced walls demonstrated that the ACI 549.6R-20 calculation method aligns closely with the experimental data.</div></div>","PeriodicalId":11763,"journal":{"name":"Engineering Structures","volume":"331 ","pages":"Article 120009"},"PeriodicalIF":5.6000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141029625004006","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0
Abstract
In the realm of masonry structures, walls—serving as the primary load-bearing components—exhibit significant susceptibility to damage during seismic events owing to their inherent brittleness. To enhance the shear performance of damaged walls, diagonal compression tests were performed on damaged specimens reinforced with textile reinforced concrete (TRC). This study meticulously examines various factors, including the extent of damage, reinforcement strategies, the number of textile layers, and the anchoring of the surface layer, while exploring the mechanisms through which TRC enhances the shear performance of damaged walls. The findings indicate that post-repair specimens predominantly exhibited diagonal tensile failures. Repairs utilizing a single-sided, two-layer textile demonstrated a degree of out-of-plane bending, whereas dual-sided reinforcement produced the most pronounced improvements in performance. Moreover, the shear strength, ductility, and energy dissipation exhibited significant enhancements within a specific range as the number of textile layers increased. Notably, improvements in mechanical performance parameters were modest in severely damaged specimens, whereas they remained comparable between slightly damaged and intact specimens. Anchoring effectively alleviated the out-of-plane bending associated with single-sided repairs, thereby enhancing shear performance. Ultimately, a comparative analysis of the experimental results against analytical models for reinforced walls demonstrated that the ACI 549.6R-20 calculation method aligns closely with the experimental data.
期刊介绍:
Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed.
The scope of Engineering Structures encompasses, but is not restricted to, the following areas: infrastructure engineering; earthquake engineering; structure-fluid-soil interaction; wind engineering; fire engineering; blast engineering; structural reliability/stability; life assessment/integrity; structural health monitoring; multi-hazard engineering; structural dynamics; optimization; expert systems; experimental modelling; performance-based design; multiscale analysis; value engineering.
Topics of interest include: tall buildings; innovative structures; environmentally responsive structures; bridges; stadiums; commercial and public buildings; transmission towers; television and telecommunication masts; foldable structures; cooling towers; plates and shells; suspension structures; protective structures; smart structures; nuclear reactors; dams; pressure vessels; pipelines; tunnels.
Engineering Structures also publishes review articles, short communications and discussions, book reviews, and a diary on international events related to any aspect of structural engineering.