open plan and academe: pre- and post
Transcription
open plan and academe: pre- and post
RECOVERY OF BUILT HERITAGE IN NINETEENTH CENTURY ARCHITECTURE. FRAGAPANE PALACE IN GRAMMICHELE (CT) Fernanda Cantone, Giovanna Cantone, Patrizia Carnazzo, Alessia Giuffrida Department of “Analisi, Rappresentazione e Progetto nelle Aree del Mediterraneo” (ARP), Faculty of Architecture of Syracuse, University of Catania, Italy fcantone@unict.it ABSTRACT The scientific beginnings of the proposed research theme is the concept of ‘recovery and maintenance of a building’, seen as a possible area of application of operation repeatable methodologies, mediating between conservation and transformation. In fact the built heritage, often compromised by the absence of recovery and maintenance actions, is a complex system that can hardly justify project choice. The research seeks to find an operational method in which emerge the criteria that lead to operation choices. The approach is based on data obtained from a technological and historical survey and investigation necessary to understand the object in its specific worthiness and transformations. The achieved method is applicable on the nineteenth-century-building through a multidisciplinary process of recovery, coherent with the buildings, with its history, its shape, its technology, and with the other cultural and social factors involved. KEYWORDS: knowledge, diagnosis, technology, history. INTRODUCTION The existing built, that is the architecture of the past in general, is visible matter and produces information related to the reason why it was raised, its constructive character, its cultural values. The history and the long past that mark Italy have manufactured architectures of every kind, tangible sign of domination, of cultural and technological evolution, of cultural, political and social events. These assets are numerous in our cities and deserve to be recovered. The recovery project is, by definition, a set of procedures, decisions and actions, applied to any settlement, directed to seize latent potentiality by the pre-existing assets and able to preserve them for the future. "Recovery is saying again what has already been said, unwinding that first wound (…) The category of recovery becomes an exceptional opportunity to rethink the whole process of architectural creation" (Benvenuto, 1984). The operation of recovery implies the knowledge of the subject on which it wants to intervene, identifying his characteristics and qualities, to understand his behaviour and stop phenomena of physical degradation and functional obsolescence, after having identified the causes through diagnosis. In this sense, the diagnosis is understood as an analytical judgment on the conditions of a building or some of its parts, subject not only to the inexorable passage of time and work of disruptive weather, but also to the inconsiderate action of man that often creates unfavourable conditions to the preservation of buildings. Any decision to take and action to perform may not necessarily cover the whole building, but its shares and the operation could provide long operating times and diluted over time; so to think of the recovery project as an open and flexible project is essential (Gasparoli et al., 2006). In this context, it is highlighted the multidisciplinary process of recovery; the issues at stake have to compare the contributions of the other disciplines and to establish a dialogue whose purpose is to build an information system as a basis for defining intervention guidelines. In other words it is necessary to recover coherently with the buildings, with its history, its shape, its technology, and with the other cultural and social factors involved. CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 79 The aim of the research is to achieve a method for the recovery of nineteenth-centurybuildings, like Fragapane palace, subject of this study. Through analysis led to the building is possible to elaborate information about its historical evolution, its material and construction features and possible changes that have involved, in order to guide the intervention choices about what transform and what preserve to safeguard the quality of building. THE CASE STUDY Fragapane palace is by the famous hexagonal Carlo Maria Carafa square in Grammichele, occupying the block on the corner of Vittorio Emanuele street. It was commissioned by the Fragapane family, to be purchased (2005?) by the Regional Province of Catania and then sold on loan of free use to the municipality in recent times. The building mirrors the architectural culture of the time, showing a revisionism typical of the period. It was built in 1877 by the designs of the architect Carlo Sada, although the watercolours owned by the Fragapane family, donated by Sada, carry the signature of the engineer Cantarella. The building, typological recognizable as a bourgeois building, has two elevations in bearing walls. The articulation of space is symmetrical and regular with vaulted rooms. The facades, covered with limestone and with lava stone basement, are marked by pilasters and openings with carved jambs and frames alternately in gable and camber arch. THE METHOD The stage of knowledge is fundamental in the recovery project. It is the source of all information that the operator should input into the system to find the operational solutions. The subject of this study, Fragapane palace, was analyzed by several points of view: the historical, technological and structural knowledge. In particular historical knowledge was explicit in historiography published texts, and through archival research at public and private structures. To facilitate the difficult task, schemes and filings are used to compare the results obtained. The technological knowledge has taken into account the study of geometries and morphologies of the building, its survey, the analysis of the relationship between the parts, the constructive characters, the materials and their preservation, and has also defined the state of deterioration of the external surfaces. It ultimately shapes the structural grid. The area of knowledge structure, closely related to the technology one, is made explicit through the happened structural movements and visible damage (Cantone et al., 2006a). The recovery project has to be able not only to identify the uniqueness of the analyzed asset, but also to ensure the integration between the new scenarios and the pre-existing buildings through the control of the conservation/transformation process. Hence the recovery project defines a system of constraints intended as a force that is opposed to transformation. The stronger is the constraint, the lesser is the space for transformation and the more is the weight of conservation. The constraints are therefore intended as prominent characters that must be maintained, but also as a potential development that suggests the possibility of modification of the building (Cantone et al., 2006b). At last, it is necessary to compare findings with the existing building types. This stage produces further indications of operation for the safeguard of typological original conformation. The drafting of guidelines for the recovery of the nineteenth-century-buildings comes then from the identification of constraints to the transformation, from their comparison with the typological relevant elements, in order to identify shares to be modified, parts to be CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 80 conserved and application methods. In this discussion, for the sake of brevity, we exemplify only information about the historical and technological analysis of building. AREA OF HISTORICAL KNOWLEDGE TOOLS CONSTRAINTS historiographic comparison cultural perceptive historical and comparative analysis archives researches AREA OF TECHNOLOGICAL KNOWLEDGE geometric-morphologic analysis ENQUIRY survey geometric morphologic perceptive study of morphologic characters study of material and constructive characters technological analysis material constructive perceptive cultural status of maintenance Analysis of deterioration material constructive study of structural grid material constructive structural conception AREA OF STRUCTURAL KNOWLEDGE structural analysis TOOLS study of damages morphologic material constructive study of structural movements typological comparison operational scenery GUIDELINES FOR RECOVERY OF NINETEENTH-CENTURY-BUILDINGS Figure 1. Operational methodology The historical and comparative analysis Carlo Sada (Milan 1849-Catania 1924) is called in Sicily in 1873 by the architect Andrea Scala, to cooperate to the design of the Politeama theatre of Catania; this opportunity gave him such reputation among aristocrats and upper bourgeois of Catania, to promote numerous professional appointments, as it is documented in the vast Sada Fund, which contains nearly CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 81 2000 designs. The success obtained in forty years, arrived up to Syracuse, Ragusa, Reggio Calabria, Malta and even in Russia and Brazil. Sada also operated in Grammichele, making the Town Hall (Project 1893-opening in April 1899), and then winning other appointments: the completion of the facade of the mother-church dedicated to St. Michele the Archangel (1899), the construction of the Coniglione house (1900) and the construction of the Fragapane palace (1877? / 1898-1900?) subject of this research. Figure 2. Photo of the Fragapane palace and survey of the facade on Vittorio Emanuele street The story about the construction of the building is rather confused. No documents confirming the year of the appointment have been found, oral sources passed down by the owners of the building testify the will to entrust the project of their residence to the architect Carlo Sada, because enthusiast by the outcome of the Town Hall, built between 1897 and 1899 (the dates were obtained from archival documents). But the two watercolour on the project show a chronology rather incongruous: September 1877. This date seems instead coherent with the contemporary production of the architect: by making a stylistic-typological comparison with residential architecture, produced by Sada in Catania between 1875 and 1880, such as Libertini palace, once Paternò of Raddusa palace of 1875-79, or Polino house of 1877, Baron Cantarella house of 1877, there is a common desire to propose again the Neo-Renaissance palace’s type, with base accentuated by bosses, rhythmic scansion modulated by pilasters and bossy cantonal, and typical formal elements such as the alternating gable-camber arch in coronas of openings on the noble floor. A layout rather austere, if compared to the formal results of the following period, or to more important works, such as those made for public commissions. But then, why do the owners refer to a building of the late '90s of the nineteenth century, if the project indicates 1877? Maybe the heirs, mixing dates and facts, appointed Sada in a moment of still emerging notoriety (1873-78), or the architect, not much involved by the appointment and very busy by commitments that led him everywhere, decided to take inspiration from existing studies and drawings, making marginal changes. The story becomes further complicated by the fact that when analyzing the two drawings the signature of Sada is not found, but that of a collaborator, Giuseppe Cantarella. A similar ambiguity was presented for Libertini palace in Catania, signed by Cantarella; resolved in 1978 with the attribution to Sada, definitively confirmed with the discovery of autograph drawings of the project within the Fund. This event allows us to clarify some new aspects of the new architectural practice of Carlo Sada: a man very professionally busy, who in some circumstances - so far only two established – used the aids to such an extent to give their projects his signature and the CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 82 direction of the work. However it is presumed that a careful and meticulous preparatory study was at the base, perhaps with preliminary original sketches or drawings. Figure 3. G. Cantarella (C. Sada?), Main facade of Mrs M. Fragapane house in Grammichele, Catania, September 1877, Indian ink pencil and watercolour on paper, scale 1:50, mm 480x 630, graphic field mm 292 x 400. G. Cantarella (C. Sada?), Transversal section plane on the line A-B of the plan of Mrs M. Fragapane house in Grammichele”, Catania, September 1877, Indian ink pencil and watercolour on paper, scale 1:50, mm 485x 620, graphic field mm 293 x 370. Technological analysis The study has examined the most significant technical elements, walls, vaults, roofs, stairs and fixtures, identifying the different types and constructive lexicon, the materials and the transformations suffered over time. The elevation structures of Fragapane palace consist of bearing rubble-filled walls, with variable thickness from cm 20 until cm 130. The main facades have a ashlar cladding. Limestone is the used material, which is used for both structural and decorative parts. There are thin internal partitions, between cm 20 and 30, which consists of limestone slabs, placed in a sheet and tied with mortar. The used building techniques are readable by the facades: the stone rustic and boasted ashlars of various sizes, are placed tip and band in regular courses, with medium and small elements such as shelf (lava stone and pieces of tiles) and filling of the cavity wall. The vaults of the ground floor are cross or barrel vaults, covered with plaster, without decorations. The first plan has thin sectioned cloister vault, casting made with rockfill and mortar. These vaults are decorated, but partially cracked and damaged. The roofs were technologically analyzed on the basis of their geometry, materials with which they are built and technical realization. The most common type is with the single pitched and double frame, with the main beam horizontally placed and inclined according to the slope purlins, the roof covering consists of tiles, the layer under the covering consists in wood boarding. CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 83 Figure 4. Scheme on the roofs CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 84 The system of meteoric water channelling has two different solutions: the first is an eaves gutter inside thick walls made of tiles and placed on a jut of the cornice and hidden by the parapet; the second is made with tiles, jutting to the wall, on a recently made eaves gutter. The main staircase is made up of neck-goose vaults that support the ramps and the landings. At the ground floor the ramps are supported by pillars with brackets and decorated capitals or by partition walls, with plastered finish and stucco. The fixtures are made of wood and are made up of a false frame, a fixed frame anchored to the wall, a mobile frame connected to the one fixed by hinges, and a dimming system connected to the fixed frame also with hinges. The glass shutter and the dimming are usually with two leafs, with the exception of the greatest fixtures, that have the dimming with three leafs, and of smaller interior doors, with one leaf. A good part of the analyzed technical elements has damage of various intensity. Some fixtures require additions, the roofs have shortcomings of proofing. This is reflected in the walls with infiltration and mould. Some openings at the first floor have apparent lesions and yielding architraves. Here a scheme on the roofs (Figure 4) is produced as examples. CONCLUSIONS The recovery operation, applied on nineteenth-century-buildings, must result from a balanced connection conservation/transformation. If once the indifference towards common buildings had led to drastic operations on the structure and to the maintenance only of the outside, today the recovery operations are more sensitive to the preservation of the building and even to its recovery in functional and formal terms. The systematization of the information collected and the identification of the transformation constraints led to the following needs: • • • • • to exploit nineteenth-century-buildings which strongly characterizes the Italian and Sicilian cities; to preserve the morphology and architectural composition of the building and the facade; to identify compositional schemes to make in relation to existing and future functions; to intervene with clearly distinguishable techniques from existing ones, possibly adopting reversibility criteria; to identify clear processing constraints that direct operations recovery towards conservation. Here guidelines for the recovery were identified, applicable to nineteenth bourgeois buildings, in urban contexts. The recovery operations, in particular for the study case, must point to the safeguard of historical and material identity of the building and of his symbolic, cultural and social importance, even if a change of destination use is provided. ACKNOWLEDGEMENTS The designs are the result of the analysis and research work of the final year undergraduate student Gabriella Murgana and are the subject of a degree thesis about the recovery of the CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 85 Fragapane palace in Grammichele, tutor arch. F. Cantone, at the Faculty of Architecture in Siracusa, Italy, academic year 2007-2008. REFERENCES Caterina, G. and De Joanna, P. (2007), Il Real Albergo de’Poveri di Napoli. La conoscenza del costruito per una strategia di riuso, Liguori, Napoli. Di Battista, V. (2006), Ambiente Costruito. Un secondo paradigma, Alinea, Firenze. Cantone, F., De Medici, S. and Senia C. (2006), Reuse strategies for sicilian architecture: the case of the “masseria Maucini”, Proceedings of Trondheim International Symposium: Changing user demands on buildings. Needs for lifecycle planning and management. CIB W70. Trondheim, Norway. Cantone, F. and Reale, G. 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Marino, A. (1980), Grammichele, in Storia dell’arte italiana, vol. VIII, Einaudi, Torino. Editorial (1978), L’autore del palazzo Libertini, in La Sicilia, September. Succession will, registered on 25.06.1942 at n.n. 14426/11584, Conservatoria of Catania. Succession statement n. 1, vol. 676, submitted on 16.05.1942, “Ufficio del Registro” of Caltagirone. Fund OO.PP., b. 80, f. 162.d, Town Archive of Grammichele. Fund OO.PP., XIX. I., b. 23, f. 2108.c, Town Archive of Grammichele. CIB W070 Conference in Facilities Management, Heriot Watt University, Edinburgh, 2008 Page 86