A full-scale timbrel cross vault subjected to vertical cyclical displacements in one of its supports

Torres, Benjamín; Bertolesi, Elisa; Calderón, Pedro A.; Moragues, Juan J.; Adam, José M.

doi:10.1016/j.engstruct.2019.01.054

Cited by 17 publications

(21 citation statements)

References 20 publications

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“…An interesting fact that is noted is that the crack pattern should be much diffused also in the extrados, although unfortunately, no documentation is available in the present. The cracks simulated in the extrados find confirmation also in experimental studies of masonry cross vaults (Torres et al, 2019).…”

Section: Observed Damage and Structural Assesment Of Masonry Vautlssupporting

confidence: 70%

“…Further understanding of the structural behaviour could be developed through experimental investigating. Torres et al (2019) concluded on the important cyclic vertical support settlements on the structural response of cross vaults. The intensity of the observed damage in the two masonry vaults here analysed are different.…”

Section: Observed Damage and Structural Assesment Of Masonry Vautlsmentioning

confidence: 99%

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Digital Modelling and Analysis of Masonry Vaults

Angjeliu

Cardani

Coronelli

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. The focus of this paper is to discuss the peculiarities of the digital modelling of masonry cross vaults. The proposed methodological approach for a multidisciplinary study of masonry vaults will be focused on: geometrical survey, crack pattern, geometrical modelling, and safety assessment based on structural analysis.Automatic reconstruction procedures recently proposed in the literature for ribbed masonry vaults, are used to overcome time-consuming modelling tasks. The created digital models take into consideration the different aspects of the three-dimensional geometry, the internal divisions with variations of material properties in different parts, and a suitable discretization for finite element analysis. Moreover, the same model can be used in BIM (Building Information Modelling), judged as a suitable environment in which to combine different aspects of the restoration works such as: documentation, intervention design, and the data system in an unique model. The same model is then used to perform finite element analysis. Each of these aspects is clarified with examples of different vaults typology coming from case studies as that of the church of St. Bassiano in Pizzighettone (Cremona) or the notable Milan Cathedral.

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Section: Observed Damage and Structural Assesment Of Masonry Vautlssupporting

confidence: 70%

Section: Observed Damage and Structural Assesment Of Masonry Vautlsmentioning

confidence: 99%

Digital Modelling and Analysis of Masonry Vaults

Angjeliu

Cardani

Coronelli

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

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“…The stiffness of masonry walls is analyzed in terms of the secant stiffness, defined as the ratio of 70% of the peak load in a cycle to the associated drift displacement [5,29,45,46]. The hysteresis loops show that the secant stiffness decreases with an increase in the applied displacement.…”

Section: Stiffness and Strength Degradationmentioning

confidence: 99%

Textile reinforced mortars (TRM) for repairing and retrofitting masonry walls subjected to in-plane cyclic loads. An experimental approach

Torres

Ivorra

Baeza

et al. 2021

Engineering Structures

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Masonry walls exhibit low tensile strength and high material heterogeneity, which makes them especially vulnerable against cyclic loading conditions, such as those typical in earthquakes. This paper presents the experimental results obtained from tests on three masonry walls reinforced with textile reinforced mortar (TRM) materials subjected to in-plane cyclic loading. These full-scale masonry walls were tested in the LARGE laboratory at the University of Alicante (Alicante, Spain). The walls had been built using a traditional construction technique, with solid clay bricks layered with lime mortar. One specimen was tested and damaged by in-plane cyclic loading and was subsequently strengthened by a vertical layer of TRM with an overlapping of 200 mm. It was then tested again until failure in a second test. In addition, another undamaged specimen had been previously reinforced with the same TRM technique and tested until failure, thus providing a third test. A network of sensors and digital image correlation systems were used to monitor displacements and crack patterns. The comparison between these experimental results made it possible to assess the effectiveness of TRM in restoring the structural integrity of damaged masonry walls and almost doubling their load-bearing capacity under cyclic loads. Conclusions obtained here provide valuable information to the scientific community, architects and structural engineers about the strengthening and repair of severely damaged masonry walls.

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“…In order to assess the structural degradation, the stiffness K corresponding to a certain drift value was obtained as the secant stiffness at 70% of the maximum load of the cycle [20,27]. Stiffness was determined for both directions of displacement -push (-) and pull (+)-, all of which seemed to present similar degradation.…”

Section: Stiffness Degradationmentioning

confidence: 99%

In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars

Ivorra

Torres

Baeza

et al. 2021

Engineering Structures

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The current experimental study is focused on the mechanical performance of masonry walls under in-plane cyclic shear forces. All specimens were fabricated with a central window, in which the geometry considered the recommendations of the Spanish structural seismic design code. Windows represent a weak area in the masonry structure, in which there are stress concentrations responsible for crack initiation. In order to improve the mechanical strength and ductility, a reinforcement with a Textile Reinforced Mortar (TRM) was used on both sides of the wall. The performance of the unreinforced and reinforced masonry has been discussed in terms of strength and ductility gain, stiffness degradation and energy dissipation capacity. The experimental tests comprised an initial vertical preload, and shear cycles with increasing amplitude.All tests were monitored by means of traditional displacement transducers, and digital image correlation. The analysis of the images showed the time evolution of the overall crack distribution. The TRM effect could be observed as an increase of the mechanical strength (maximum shear from 120 kN to more than 300 kN), higher displacements (drift from 9 to 35 mm), and more energy dissipation (the cumulative energy loss from 2.7 to 12.7 kN•m). In addition, the TRM reinforcements were capable of controlling the crack initiation and growth. The widespread crack along mortar joints observed in the This is a previous version of the article published in Engineering Structures. 2021, 226: 111343.

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A full-scale timbrel cross vault subjected to vertical cyclical displacements in one of its supports

Cited by 17 publications

References 20 publications

Digital Modelling and Analysis of Masonry Vaults

Digital Modelling and Analysis of Masonry Vaults

Textile reinforced mortars (TRM) for repairing and retrofitting masonry walls subjected to in-plane cyclic loads. An experimental approach

In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars

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