The post strengthening of the masonry vaults by the Ω-Wrap technique based on the use of C-FRP

Anania, Laura; Badalà, Antonio; D’Agata, G.

doi:10.1016/j.conbuildmat.2013.05.012

Cited by 28 publications

(13 citation statements)

References 7 publications

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“…The mesh reinforcement is not only effective in reinforcing the vertical masonry structures but also significant in the strengthening of horizontal elements like vaults and arches, especially the composite materials made with textile fibers both with polymeric and cementitious matrices [58] strengthened masonry arches and vaults with different composites (TRM, SRG and FRP), all the experimental results showed that all the reinforcement systems were very efficient in increasing the maximum load [59] used the post-strengthening method with C-FRP on masonry vaults, and a similar result was found. More research about retrofitting/strengthening on masonry vaults and arches can be found in the work of [58,60,61] reviewed the strengthening of masonry arches using composite regarding the reinforcement position, and the result pointed out that the best type of reinforcement position is continuous at the intrados and extrados of the arches.…”

Section: Mesh Reinforcementmentioning

confidence: 93%

Strengthening/Retrofitting Techniques on Unreinforced Masonry Structure/Element Subjected to Seismic Loads: A Literature Review

Wang¹,

Sarhosis²,

Nikitas³

2018

TOBCTJ

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Masonry structures commonly exist in reality and still are popular all over the world. It has been reported and studied that these buildings are vulnerable to strong external loadings imposed by earthquake, strong wind, blast etc. In the past few decades, different seismic retrofitting and strengthening approaches for masonry structures/elements have been developed and implemented. In this paper, the previous studies on the strengthening/retrofitting techniques for Unreinforced Masonry (URM) buildings subjected to seismic and extreme loads are reviewed and summarized. The fundamental concept of strengthening/retrofitting approaches is to (i) reduce the influence of external loading, (ii) upgrade the individual element's load-carrying capacity and (iii) improve the integrity of masonry structure. A comparison and assessment of the advantages and disadvantages of each method is presented to identify the most suitable method in different cases. It is expected that this paper will provide some helpful information and guidance for the engineers and householders in choosing an appropriate technique in strengthening/retrofitting URM structures.

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Section: Mesh Reinforcementmentioning

confidence: 93%

Strengthening/Retrofitting Techniques on Unreinforced Masonry Structure/Element Subjected to Seismic Loads: A Literature Review

Wang¹,

Sarhosis²,

Nikitas³

2018

TOBCTJ

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“…This work aims to document the options available for the use of additional reinforcement in the strengthening of masonry structures loaded with the interaction of a normal force and a bending moment. The next aim is to experimentally verify the behaviour of The method of additionally inserting of non-prestressed reinforcement is one of the several methods for strengthening of vaulted masonry structures (Alecci, Misseri, Rovero, Stipo, De Stefano, Feo, & Luciano, 2016;Anania, Badalà, & D'Agata, 2013;Borri, Castori, & Corradi, 2011;Fauchoux & Abdunur, 1998;Foraboschi, 2004;Oliveira, Basilio, & Lourenço, 2010;Paeglitis, Paeglitis, Vitiņa, & Igaune, 2013;Tao, Stratford, & Chen, 2011). The presented method allows the strengthening of masonry structures without the necessity for large-scale modifications to the structure of vaults (i.e., the excavation of infill), especially in the case of external applications.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of Arched Masonry Structures by Additional Reinforcement: Design Approaches and Comparison to Experiments

Zlámal

Štěpánek

2018

BJRBE

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The primary aim of this article is to present design approaches for calculating the additional strengthening of masonry arches with the use of the Strut-and-Tie model and applicable standards and their comparison to the experiments. Experiments have proven the functionality of the described method of strengthening by additional inserted non-prestressed reinforcement from the face of the vault. The presented method is one of the methods of maintaining historical vaulted masonry structures, and is also used to improve the behaviour of newly designed masonry structures. This method of strengthening has its advantages, especially in the minimization of alterations to the structure and its simplicity of application. To compare the results and verify the vaults behaviour, experiments were performed with using a metallic helical reinforcement and non-metallic composite glass reinforcement. These experiments have demonstrated the significant influence of additional reinforcement on the carrying capacity of masonry vaults. The growth of bearing capacity was more than eight-fold. From a comparison of design approaches to experiments is evident that approaches to the design of additionally strengthened masonry based on valid standards are possible. The comparison of results moreover demonstrates the possibility of using approaches based on the Strut-and-Tie model.

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“…The positioning of numerous reinforcing elements [7][8][9][10][11], the verification of the failure mechanism of reinforced vaults [12,13], verification of innovative shapes of reinforcement (for example "Ω" shaped reinforcement [14]), the use of combinations of new materials (carbon fiber reinforced cementitious matrix (C-FRCM) [15], poliparafenilenbenzobisoxazole fiber reinforced cementitious matrix (PBO-FRCM) [16], basalt textile-reinforced mortar (BTRM) [17] and others) are other elements considered.…”

Section: Introductionmentioning

confidence: 99%

The Application of Carbon Composites in the Rehabilitation of Historic Baroque Vaults

et al. 2015

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Abstract:The stabilization and reinforcement of damaged barrel vaults with lunettes over an arcaded walk, applying composite strips based on high-strength carbon fibers and epoxy resin, was performed during the restoration of a historic monastery. The application of reinforcing composite strips in the soffit of damaged barrel vaults was preceded by relatively extensive experimental research and theoretical analyses. This method significantly reduces the interventions into and the degradation of the original historic structure (surface application) and is reversible.

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The post strengthening of the masonry vaults by the Ω-Wrap technique based on the use of C-FRP

Cited by 28 publications

References 7 publications

Strengthening/Retrofitting Techniques on Unreinforced Masonry Structure/Element Subjected to Seismic Loads: A Literature Review

Strengthening/Retrofitting Techniques on Unreinforced Masonry Structure/Element Subjected to Seismic Loads: A Literature Review

Strengthening of Arched Masonry Structures by Additional Reinforcement: Design Approaches and Comparison to Experiments

The Application of Carbon Composites in the Rehabilitation of Historic Baroque Vaults

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