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Tiziana Basiricò
Faculty of Engineering and Architecture, University of Enna “Kore”, 94100 Enna, Italy

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Journal article
Published: 28 November 2020 in Sustainability
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The evaluation of thermal bridges in buildings, following the UNI TS 11300-1:2014 standard, must be carried out with finite element analysis or through the use of atlases compliant with the UNI EN ISO 14683:2018. The paper illustrates the development of an analytical tool to determine the internal linear thermal transmission coefficient (ψi) for the thermal bridge between concrete wall and inter-floor slab, neglected in the main existing catalogs or atlases. This type of thermal bridge is relevant in multi-story buildings, and is typical of public housing districts built between the 1960s and 1970s throughout Europe by means of industrialized systems. Considering energy requalification, due to their low energy efficiency, these buildings require adaptation to the standards imposed by law, and this thermal bridge, which has a high percentage incidence on the total heat losses, cannot be overlooked. From the survey of a representative number of such buildings in Italy, three different technological solutions were examined, with dimensional variations in the individual technical elements and the related functional layers. The combination of these variables resulted in 216 different case studies. The analysis of the existing atlases and catalogues has demonstrated their inapplicability for the selected case studies. For each one of these, ψi was calculated, using off-the-shelf software. The correlation of the data made it possible to determine an analytical mathematical modeling process to assess heat losses due to the analyzed thermal bridge. The validity of this mathematical formula was verified by recalculating the typologies investigated, reaching an error evaluated by means of the mean square deviation equal to ±4%.

ACS Style

Tiziana Basiricò; Antonio Cottone; Daniele Enea. Analytical Mathematical Modeling of the Thermal Bridge between Reinforced Concrete Wall and Inter-Floor Slab. Sustainability 2020, 12, 9964 .

AMA Style

Tiziana Basiricò, Antonio Cottone, Daniele Enea. Analytical Mathematical Modeling of the Thermal Bridge between Reinforced Concrete Wall and Inter-Floor Slab. Sustainability. 2020; 12 (23):9964.

Chicago/Turabian Style

Tiziana Basiricò; Antonio Cottone; Daniele Enea. 2020. "Analytical Mathematical Modeling of the Thermal Bridge between Reinforced Concrete Wall and Inter-Floor Slab." Sustainability 12, no. 23: 9964.

Conference paper
Published: 01 January 2019 in High Performance Fiber Reinforced Cement Composites 6
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The paper illustrates the damages occurred to masonry buildings due to incorrect consolidation interventions dated back to the 1980s that, according to the culture of the time, were oriented to the replacement of structural elements with new heavy ones, thus changing the static scheme. The case study concerns the seventeenth century church of Saint Mary of Itria in Piazza Armerina, affected in 2007 by the collapse of the one side wall of the apse. After illustrating the historical evolution and the actual state of the building, the investigations carried out to identify the causes of collapse and provide for appropriate reconstruction interventions are reported. The results of hydro-geological and geotechnical surveys lead to exclude foundations subsidence from the causes of the collapse. The study is focused on the analysis of the interventions carried out between 1980 and 1985 for the replacement of the existing wooden covering with girder and hollow block floors, connected with RC curb. The structural analysis was carried out under two load conditions before the collapse with the existing RC roof and with the previous wooden one, showed irrelevant load increase. Thus, the cause of collapse was identified in a variation on the load distribution. The planned intervention concerned the reconstruction of the wall with collapse recovery stones and blocks of similar physical-mechanical properties, the improvement of the walls resistance with mortar injections, the construction of curbs on the top of the walls, the stretching of transversal tie-rods and the introduction of new ones.

ACS Style

Tiziana Basiricò; Samantha Campione; Antonio Cottone. The Collapse and Restoration of the Church of Saint Mary of Itria in Piazza Armerina (Sicily, Italy). High Performance Fiber Reinforced Cement Composites 6 2019, 2016 -2024.

AMA Style

Tiziana Basiricò, Samantha Campione, Antonio Cottone. The Collapse and Restoration of the Church of Saint Mary of Itria in Piazza Armerina (Sicily, Italy). High Performance Fiber Reinforced Cement Composites 6. 2019; ():2016-2024.

Chicago/Turabian Style

Tiziana Basiricò; Samantha Campione; Antonio Cottone. 2019. "The Collapse and Restoration of the Church of Saint Mary of Itria in Piazza Armerina (Sicily, Italy)." High Performance Fiber Reinforced Cement Composites 6 , no. : 2016-2024.

Journal article
Published: 10 April 2018 in Sustainability
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This paper exemplifies several methods for retrofitting existing housing through four case studies, representative of the historical centre of Enna, a small town in Sicily, according to the requirements of static safety, typological adaptation and indoor comfort. These buildings were mostly built in the nineteenth century, up to three floors based on load-bearing masonry, iron joists and hollow tile floors and wooden roofs. A typological and construction analysis of these buildings was carried out to identify the stratigraphy of the different technical elements. Static and energy audits had been previously undertaken to understand the gap between the current state of the buildings and Italian standards and to develop appropriate interventions taking into account the site characteristics and the energy and seismic risk class pre- and post-retrofit intervention. The analyses and the retrofit interventions were performed in compliance with Italian standards and laws and strove to reach the minimum level. The study supports the planning of structural and energy retrofit interventions designed for historic load-bearing masonry buildings. Finally, the study simulates a strategy of action to provide subsidies and tax relief related to effective seismic and/or energy improvement that could be relevant for owners/builders as well as for local authorities.

ACS Style

Tiziana Basiricò; Daniele Enea. Seismic and Energy Retrofit of the Historic Urban Fabric of Enna (Italy). Sustainability 2018, 10, 1138 .

AMA Style

Tiziana Basiricò, Daniele Enea. Seismic and Energy Retrofit of the Historic Urban Fabric of Enna (Italy). Sustainability. 2018; 10 (4):1138.

Chicago/Turabian Style

Tiziana Basiricò; Daniele Enea. 2018. "Seismic and Energy Retrofit of the Historic Urban Fabric of Enna (Italy)." Sustainability 10, no. 4: 1138.