Application of CLT prefabricated exoskeleton for an integrated renovation of existing buildings and continuous structural monitoring

Zanni, Jacopo; Castelli, Simone; Bosio, Marco; Passoni, Chiara; Labò, Simone; Marini, Alessandra; Belleri, Andrea; Giuriani, Ezio; Brumana, Giovanni; Abrami, C.; Santini, Stephanie Fest; Venturelli, Giuliano; Marchetti, A.L.

doi:10.1016/j.prostr.2023.01.150

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…At the level of specific carbon reduction methods, Zanni et al [98] advocated retrofit interventions employing cross-laminated timber panels, coupled with the sensor-based monitoring of building performance to achieve material carbon reduction. Addressing building material reuse, Dervisha et al [99] proposed a numerical guide addressing the scarcity of data concerning reused building components.…”

Section: Sustainable Operationmentioning

confidence: 99%

Digitalizing Industrialized Construction Projects: Status Quo and Future Development

Fan,

Chen,

Chen

2024

Applied Sciences

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The construction industry is being profoundly reshaped by the trends of industrialization and digitalization, which, when integrated, offer greater advantages than when applied in isolation. Despite an expanding body of research, a knowledge gap persists regarding the current state and future trajectory of this integration. This study utilizes both quantitative and qualitative review methods to elucidate recent advancements in digital technologies within industrialized construction projects. An analysis of 173 scholarly articles indicates that digital technologies primarily enhance efficiency, flexibility, visualization, and intelligence. The adoption of these technologies varies across different project stages, with a notable trend towards their convergence. However, the operation stage receives significantly less attention compared to the design, production, and construction stages. This study not only identifies specific research gaps for each project stage but also provides recommendations for future research, thereby paving the way for further advancements in the field.

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Section: Sustainable Operationmentioning

confidence: 99%

Digitalizing Industrialized Construction Projects: Status Quo and Future Development

Fan,

Chen,

Chen

2024

Applied Sciences

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“…A first example of seismic, energy and architectural deep renovation, also including LCT principles such as macro-prefabrication, demountability, damage concentration, etc., was completed in Brescia (Italy) and financed by Regione Lombardia for the holistic renovation of a public school gym hall [17]. An enhancement of this technique is now under development, also including additional sensors for IoT and smart monitoring, as well as new mechanical systems applied from the outside of the building [18].…”

Section: List Of Suitable Solutionsmentioning

confidence: 99%

“…In fact, by applying this filter before the preliminary design phase, unsustainable solutions are discarded from the beginning of the process, while innovative holistic and sustainable solutions are encouraged. In addition, adopting an LC perspective in the renovation process will foster the proposal of new renovation models and the conceptual design of new technical solutions, such as the exoskeleton proposed in [6,18].…”

Section: Step 2-pre-screening Of Retrofitting Solutionsmentioning

confidence: 99%

The Role of Life Cycle Structural Engineering in the Transition towards a Sustainable Building Renovation: Available Tools and Research Needs

et al. 2022

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Given the current climate emergency and the ambitious targets of carbon emissions reduction, retrofitting strategies on existing buildings typically include reducing energy demand, decarbonising the power supply, and addressing embodied carbon stored in materials. This latter point redefines the role of engineers in the transitions towards a sustainable construction sector, being they responsible for designing low impact, sustainable and carbon neutral solutions. A Life Cycle Structural Engineering (LCSE) approach, inspired by the principles of Life Cycle Thinking (LCT), should thus be adopted for the sustainable renovation of existing buildings. Only recently have pioneering approaches been proposed, tackling multifaceted buildings’ needs, such as those related to energy consumption as well as seismic safety, but often disregarding LCT principles. This study presents a redefinition of the concept of LCSE for sustainable construction and a comprehensive review of available methods and tools to operationalise the LCSE approach in practice, focusing on the consideration of LCT principles in the retrofitting design process, integration of seismic loss estimation and environmental impact assessment, and implementation of integrated retrofitting strategies. The greatest ambition of this work is thus to boost a paradigm shift for building engineers towards an interdisciplinary perspective in building assessment and retrofitting.

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“…Prefabrication and modularity could also trigger the creation of new spaces added to the existing buildings to increase energy performance, as discussed in (Fotopoulou et al, 2018). Finally, it is worth mentioning that a retrofitting intervention with an industrialised approach without relocating the inhabitants during the work was studied by (Zanni et al, 2023) and implemented in a real building, achieving structural and energy performance improvements. From a structural point of view, the retrofit solution entailed the adoption of a wooden shell made of CLT prefabricated panels.…”

Section: Introductionmentioning

confidence: 99%

Comparative cost analysis of traditional and industrialised deep retrofit scenarios for a residential building

Gubert,

Avesani,

Ngoyaro

et al. 2023

JFDE

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In this paper, the economic competitiveness for deep retrofit actions between the industrialised off-site and the traditional on-site approaches are discussed by using a comparative Life Cycle Costing (LCC) analysis. This assessment was based on a deep analysis of all renovation-related cost and timing processes, from design to operation and maintenance phases. The study was based on three retrofit scenarios for an existing building in Italy undergoing a deep renovation. The Life Cycle Inventory (LCI) was developed starting from real costs and a list of bills collected by the design team and the industrialised technologies developers. Afterwards, the LCC modelling was performed for all scenarios. The results show that the two deep retrofit approaches (traditional and industrialised) are comparable in terms of investment costs, even if a gap of around -7% and +16% still exists. This highlights a potential for technological optimisation. Moreover, the operation and maintenance phase has shown to be key to transforming the expected higher quality of the industrialised components into a prolonged life expectance, hence highly impacting the whole cumulated Net Present Value. Finally, the analysis of the End of Life (EoL) phase in case of possible reusing of some dismantled components in the industrialised scenario resulted in contributing in a relevant way to increase the final value of such an approach.

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Application of CLT prefabricated exoskeleton for an integrated renovation of existing buildings and continuous structural monitoring

Cited by 6 publications

References 5 publications

Digitalizing Industrialized Construction Projects: Status Quo and Future Development

Digitalizing Industrialized Construction Projects: Status Quo and Future Development

The Role of Life Cycle Structural Engineering in the Transition towards a Sustainable Building Renovation: Available Tools and Research Needs

Comparative cost analysis of traditional and industrialised deep retrofit scenarios for a residential building

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