An alternative approach for limit analysis of masonry arches on moving supports in finite small displacements

Galassi, S.

doi:10.1016/j.engfailanal.2022.107004

Cited by 10 publications

(2 citation statements)

References 54 publications

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“…Galassi et al [28], in looking at failure mechanisms on moving supports, considered only hinging mechanisms on unloaded voussoirs without spandrel walls. Galassi showed settling arches as developing hinging mechanisms exclusively [29]. Zampieri, Amoroso, and Pellegrino [10] and Zampieri, Cavalagli, Gusella, Pellegrino [30] offer similar studies of support settlement in arches that only consider hinging mechanisms.…”

Section: Continuing Reliance On Heyman's Methodsmentioning

confidence: 87%

The Stone Skeleton: A Reappraisal

Boothby,

Coronelli

2024

Heritage

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Jacques Heyman’s 1966 article “The Stone Skeleton” has been influential in the assessment of masonry arches in general, including masonry bridges and gothic architecture. Heyman’s article relies on limiting assumptions about arch behavior, and concludes that an arch can be declared stable based on the location of a statically admissible thrust line within the arch. In the following commentary, we assess the validity of the assumptions made by Heyman and the uses that have been made of his application of the lower bound theorem of plasticity. We conclude that Heyman’s methods have enduring value, but that the user needs to recognize the limitations of the assumptions made and the limits on the validity of conclusions imposed by these assumptions.

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Section: Continuing Reliance On Heyman's Methodsmentioning

confidence: 87%

The Stone Skeleton: A Reappraisal

Boothby,

Coronelli

2024

Heritage

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“…A multi-sensor approach was applied in the San Bevignate church by using 3D digitalisation techniques with laser scanning and UAV systems and a scalable and contactless thermographic method to identify and interpret the differences of temperature in wall surfaces. Such strategy enables the evaluation of the quality and regularity of the masonry texture covered by the frescoes, as the conservative status of the latter, representing an aprioristic element to be analysed (Galassi, 2023;Hejazi and Kaviani Dezaki, 2023) before any restoration intervention. In particular, the thermographic results were achieved by the surveys carried out in the lower parts of the north wall in correspondence of the depiction of the saints Magdalene, Stefano and Lorenzo (Figure 3) and of the drawings of overlapping ashlars (Figure 4).…”

Section: Resultsmentioning

confidence: 99%

Multi-Sensor Analysis for Experimental Diagnostic and Monitoring Techniques at San Bevignate Templar Church in Perugia

Guarneri

Ceccarelli

Francucci

et al. 2023

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

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Abstract. In the contemporary world, human and natural calamities are challenging our capabilities to preserve heritage and develop innovative safeguard strategies that also address the requirement of sustainability for restoration purposes, still considering the connection between tradition and innovation. This work introduces non-invasive diagnostic practices that offer a new insight of the built environment by studying two different elements of the same architecture of San Bevignate Templar church: a thermographic mapping obtained with special post-processing procedures provided interesting information about the hidden wall pattern, while a prototypal laser scanner, called RGB-ITR, and a UAV survey supplied new insights on the precious paintings. The assessment of the masonry quality constitutes an a priori condition for a reliable estimation of its seismic vulnerability and for the planning of effective yet conservative interventions. The access keys to 'sustainability' therefore consist in the improvement of these contactless investigations, which can be performed both in passive conditions, in the case of thermography surveys, and in active ones, such as for the RGB-ITR scanner, as necessary substitutes for destructive or partial-destructive tests. The research achieved promising results for the characterisation of the architectural structure and the paintings, with the aim of a long-term monitoring of the structure and the decorative apparatus of a monumental heritage located in an area vulnerable to seismic and environmental events.

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