E. Coisson 2021a - Revision history

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Scipediacontent: Scipediacontent moved page Draft Content 278068879 to E. Coisson 2021a

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Scipediacontent moved page Draft Content 278068879 to E. Coisson 2021a

Scipediacontent: Created page with "== Abstract == Masonry vaults are widespread and characteristic structural elements of our built heritage since many centuries, but for a very long time they were..."

2021-11-30T11:12:41Z

Created page with "== Abstract == Masonry vaults are widespread and characteristic structural elements of our built heritage since many centuries, but for a very long time they were..."

New page

== Abstract ==

Masonry vaults are widespread and characteristic structural elements of our
built heritage since many centuries, but for a very long time they were built only based
upon the experience and the proportional analysis of previous positive examples. Since
the Hooke’s observations, in 17th century, about the shape of the catenary, and the first
graphical analyses of 18th century, the tools for their “scientific” calculation have developed
quickly [1], mainly to assess the stability of already existing structures rather than for the
prevision of the future behaviour of new vaults. Despite the great progress in this field,
ordinary programs for the static and seismic assessment of masonry buildings often
disregard the vaults structural role and the professionals sometimes underestimate it, also
due to the lack of attention dedicated to these structures by the technical codes. Therefore it
seems now important to reconnect the elements of this modelling historical evolution, to
compare the different methods and to find an equilibrium between complexity and
reliability, making it accessible also to the common professional use, whose effects on
preservation are important.
To this aim, a pavilion vault was chosen as a reference, with given geometries
and materials features, and the different methods were applied. On one side, traditional
methods were chosen: the graphic Méry method [2] and the static theorem of limit
analysis [3] have been applied to a system of 2D arches composing the vault. On the
other side, a 2D Finite Element Model and the edge cutting ChronoEngine Distinct
Element Model [4] have been also tested, under the same conditions. The influence of the
brick pattern on the structural behaviour have been considered, conveniently defining
the arches decomposition in the traditional methods and the blocks division in the
Distinct Element Method. In all cases, calculations have been made changing both values
and positions of the loads. The results are compared both in terms of stresses inside the
masonry and in terms of deformation of the structural elements, evaluating the types
of information and detail that the different approaches can supply. The results of the
advanced numerical methods allow to assess the validity of the traditional approaches.
On the other side, the possible contribution of the traditional methods to the calibration
of the parameters for the numerical models is also discussed.

== Full document ==
<pdf>Media:Draft_Content_278068879p1119.pdf</pdf>

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 == References ==

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		+	== References ==
		+	[1] Bettini S., L’architettura di San Marco, Padova, 1946; s.v. Arco, in Enciclopedia dell’arte antica, Secondo Supplemento 1971, Roma, 1994, pp. 344-354 (in Italian).
		+
		+	[2] A. Tralli, C. Alessandri & G. Milani. Computational methods for masonry vaults: a review of recent results. The Open Civil Engineering Journal, 8-1(2014) 272-287.
		+
		+	[3] Giovannoni G., Il restauro dei monumenti, Tipografia Editrice Italia, Roma, 1945 (in Italian).
		+
		+	[4] NTC2018 “Aggiornamento delle norme tecniche delle costruzioni”, Ministero delle Infrastrutture e dei Trasporti, D.M. 17-01-2018. (in Italian).
		+
		+	[5] E. Méry, Mémoire sur l’équilibre des voutes en berçeau, Annales des Ponts et Chaussées, s.1, 1e trim., t. XIX (1840) 50-70.
		+
		+	[6] J. Heyman, The masonry Arch, Chichester: Ellis Horwood, 1982.
		+
		+	[7] “Project Chrono”, URL: https://projectchrono.org Accessed January 2020.
		+
		+	[8] E. Coïsson, D. Ferretti, C. Boni & A. Tasora, Defining the structurally compatible uses of ancient vaults: a comparison between traditional and modern modelling approaches, in 6th International Conference on Mechanics of Masonry Structures Strengthened With Composite Materials (MuRiCo6), Bologna, Italy, June 26-28, 2019.
		+
		+	[9] D. Ferretti, E. Coisson & Rozzi, M. A new numerical approach to the structural analysis of masonry vaults, Key Engineering Materials, 747(2017) 52-59.
		+
		+	[10] “Arco”, URL: http://gelfi.unibs.it/arco.htm Accessed January 2020.
		+
		+	[11] E. Coisson, F. Ottoni, F. Pagliari, Istanze strutturali nella definizione di usi compatibili: un caso studio nel complesso monumentale della Pilotta, in: Il Patrimonio culturale in mutamento. Le sfide dell'uso, XIII convegno Scienza e Beni Culturali, Bressanone, 2019.
		+
		+	[12] Kaushik, H. B., Rai, D. C., & Jain, S. K. (2007). Stress-strain characteristics of clay brick masonry under uniaxial compression. Journal of materials in Civil Engineering, 19(9), 728-739.
		+
		+	[13] A. Lorenzelli, The seismic vulnerability of bell-towers’ spires: damage analysis and modeling, thesis in Engineering, University of Parma, supervisors D. Ferretti, E. Coïsson, A.Y. 2016/2017
		+
		+	[14] Calderini, C., Vecchiattini, R., Battini, C., & Piccardo, P. (2016, September). Mechanical and metallographic characterization of iron tie-rods in masonry buildings: An experimental study. In 10th International Conference Structural Analysis of Historical Constructions, Leuven, Belgium, September (Vol. 13, p. 15).
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		+	[15] G. de Felice, Assessment of the load-carrying capacity of multi-span masonry arch bridges using fibre beam elements, Engineering Structures, Volume 31, Issue 8, 2009, Pages 1634-1647.
		+
		+	[16] Demi L. Fang, Rebecca K. Napolitano, Tim L. Michiels & Sigrid M. Adriaenssens (2019) Assessing the stability of unreinforced masonry arches and vaults: a comparison of analytical and numerical strategies, International Journal of Architectural Heritage, 13:5, 648-662.
		+
		+	[17] Antonio Maria D’Altri, Stefano De Miranda, Giovanni Castellazzi, Vasilis Sarhosis, Jamie Hudson & Dimitris Theodossopoulos (2019): Historic Barrel Vaults Undergoing Differential Settlements, International Journal of Architectural Heritage.
		+
		+	[18] P. Gelfi, Role of horizontal backfill passive pressure on the stability of masonry vaults. International Journal for Restoration of Buildings and Monuments 8-6 (2002) 573-590.
		+
		+	[19] D. O'Dwyer, "Funicular analysis of masonry vaults," Computers & Structures, vol. 73, pp. 187-197, 10 1999.
		+
		+	[20] P. Block, T. Ciblac and J. Ochsendorf, "Real-time limit analysis of vaulted masonry buildings," Computers & Structures, vol. 84, pp. 1841-1852, 11 2006.
		+
		+	[21] A. Andreu, L. Gil and P. Roca, "Computational analysis of masonry structures with a funicular model," Journal of Engineering Mechanics, vol. 133, pp. 473-480, 2007.
		+
		+	[22] Chaix, Jacques. 1890. Traité des ponts: première par-tie: ponts en maçonnerie et tunnels: Tome II. Paris: Fanchon et Artus.

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