Abstract
In the European framework, there is a strong drive to develop integrated approaches aimed at understanding and improving the energy behavior of public historic buildings within urban contexts. However, the examples already provided tend to address the issue from mono-disciplinary perspectives, losing the opportunity for a coordinated view. The research suggests a methodology to reach the definition of a three-dimensional database, which incorporates spatial models and energy information, with the final goal of merging heterogeneous information that is useful to interpret the overall framework and to design sustainable development scenarios. The platform achieves GIS (Geographic Information System) and BIM (Building Information Modeling) integration by using the CityGML data model, for supporting multi-scale analyses without break of continuity, ranging from urban to building level. The discussion combines the applicative case with the theoretical background, deepening the role of a solid knowledge framework as a basis for sustainable interventions on public historic buildings. To better explain and test the methodology, a case study on the University built heritage of Pavia is presented and three possible outputs deriving from the database are discussed. The example demonstrates the strength of the approach, which is able to provide a variety of results coming from a unique source of information, ensuring coherence and unambiguousness at all levels of investigation.
Highlights
Historic buildings are generally considered those built before 1945, even if, a wide diffusion of older constructions [1] characterizes several European countries and, Italy
The national plans have set higher targets concerning energy performances and renovation rates for these buildings, and the repercussions of these indications are necessarily found in the cases involving historical buildings. For this reason, where different and often conflicting requirements fall on public historic buildings by considering them from a single point of view, it is necessary to overcome the duality, by developing a holistic approach aimed at their management
Alobnehgawviiothr [t3h1e].dAifflounsgiowniothf EthPeCdsi,fnfuastiioonnaolfoErPrCesg,ionnatailodnaaltaorsertesgcioonllaelcdtiantga tshetesrceolallteecdtiningfothremraetliaotnedare information are becoming common, permitting simpler access and comparison of data. This step forward activated a new line of research, which seized the opportunity of EPC availability to understand the energy performance of urban areas and extract relevant statistics [32,33]
Summary
Historic buildings are generally considered those built before 1945, even if, a wide diffusion of older constructions [1] characterizes several European countries and, Italy. The national plans have set higher targets concerning energy performances and renovation rates for these buildings, and the repercussions of these indications are necessarily found in the cases involving historical buildings For this reason, where different and often conflicting requirements fall on public historic buildings by considering them from a single point of view, it is necessary to overcome the duality, by developing a holistic approach aimed at their management. The paper is focused on the case of public historic buildings because, even though the theme of energy refurbishment of existing buildings has been widely discussed in the last decades, a knowledge gap is recognizable regarding this subcategory They are, always considered from a single point of view—as public spaces to be upgraded in their performance [12] or as cultural heritage to be protected [13]—losing the coordinate objective of an integrated governance.
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