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Nested Buildings: An Innovative Strategy for the Integrated Seismic and Energy Retrofit of Existing Masonry Buildings with CLT Panels

Author

Listed:
  • Maria Rosa Valluzzi

    (Department of Cultural Heritage, University of Padova, 35139 Padova, Italy)

  • Elisa Saler

    (Department of Geosciences, University of Padova, 35131 Padova, Italy)

  • Alberto Vignato

    (Department of Civil, Environmental, and Architectural Engineering, University of Padova, 35131 Padova, Italy)

  • Matteo Salvalaggio

    (Department of Cultural Heritage, University of Padova, 35139 Padova, Italy)

  • Giorgio Croatto

    (Department of Civil, Environmental, and Architectural Engineering, University of Padova, 35131 Padova, Italy)

  • Giorgia Dorigatti

    (Department of Civil, Environmental, and Architectural Engineering, University of Padova, 35131 Padova, Italy)

  • Umberto Turrini

    (Department of Civil, Environmental, and Architectural Engineering, University of Padova, 35131 Padova, Italy)

Abstract

The Italian building heritage is aged and inadequate to the high-performance levels required nowadays in terms of energy efficiency and seismic response. Innovative techniques are generating a strong interest, especially in terms of multi-level approaches and solution optimizations. Among these, Nested Buildings, an integrated intervention approach which preserves the external existing structure and provides a new structural system inside, aim at improving both energy and structural performances. The research presented hereinafter focuses on the strengthening of unreinforced masonry (URM) buildings with cross-laminated timber (CLT) panels, thanks to their lightweight, high stiffness, and good hygrothermal characteristics. The improvement of the hygrothermal performance was investigated through a 2D-model analyzed in the dynamic regime, which showed a general decreasing in the overall thermal transmittance for the retrofitted configurations. Then, to evaluate the seismic behavior of the coupled system, a parametric linear static analysis was implemented for both in-plane and out-of-plane directions, considering various masonry types and connector spacings. Results showed the efficiency of the intervention to improve the in-plane response of walls, thus validating possible applications to existing URM buildings, where local overturning mechanisms are prevented by either sufficient construction details or specific solutions.

Suggested Citation

  • Maria Rosa Valluzzi & Elisa Saler & Alberto Vignato & Matteo Salvalaggio & Giorgio Croatto & Giorgia Dorigatti & Umberto Turrini, 2021. "Nested Buildings: An Innovative Strategy for the Integrated Seismic and Energy Retrofit of Existing Masonry Buildings with CLT Panels," Sustainability, MDPI, vol. 13(3), pages 1-19, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:3:p:1188-:d:485910
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    References listed on IDEAS

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    1. Giuseppe Margani & Gianpiero Evola & Carola Tardo & Edoardo Michele Marino, 2020. "Energy, Seismic, and Architectural Renovation of RC Framed Buildings with Prefabricated Timber Panels," Sustainability, MDPI, vol. 12(12), pages 1-18, June.
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    Cited by:

    1. Davide Cassol & Maja Danovska & Alessandro Prada & Ivan Giongo, 2024. "Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings," Sustainability, MDPI, vol. 16(1), pages 1-20, January.
    2. Lucas Lopes & Luca Penazzato & Daniel C. Reis & Manuela Almeida & Daniel V. Oliveira & Paulo B. Lourenço, 2024. "A Holistic Modular Solution for Energy and Seismic Renovation of Buildings Based on 3D-Printed Thermoplastic Materials," Sustainability, MDPI, vol. 16(5), pages 1-28, March.
    3. Luca Sbrogiò & Carlotta Bevilacqua & Gabriele De Sordi & Ivano Michelotto & Marco Sbrogiò & Antonio Toniolo & Christian Tosato, 2021. "Strategies for Structural and Energy Improvement in Mid-Rise Unreinforced Masonry Apartment Buildings. A Case Study in Mestre (Northeast Italy)," Sustainability, MDPI, vol. 13(16), pages 1-24, August.
    4. Matteo Busselli & Davide Cassol & Alessandro Prada & Ivan Giongo, 2021. "Timber Based Integrated Techniques to Improve Energy Efficiency and Seismic Behaviour of Existing Masonry Buildings," Sustainability, MDPI, vol. 13(18), pages 1-20, September.
    5. Rayane de Lima Moura Paiva & Lucas Rosse Caldas & Adriana Paiva de Souza Martins & Patricia Brandão de Sousa & Giulia Fea de Oliveira & Romildo Dias Toledo Filho, 2021. "Thermal-Energy Analysis and Life Cycle GHG Emissions Assessments of Innovative Earth-Based Bamboo Plastering Mortars," Sustainability, MDPI, vol. 13(18), pages 1-24, September.
    6. Luka Lulić & Karlo Ožić & Tomislav Kišiček & Ivan Hafner & Mislav Stepinac, 2021. "Post-Earthquake Damage Assessment—Case Study of the Educational Building after the Zagreb Earthquake," Sustainability, MDPI, vol. 13(11), pages 1-25, June.
    7. Amedeo Caprino & Filippo Lorenzoni & Laura Carnieletto & Leonardo Feletto & Michele De Carli & Francesca da Porto, 2021. "Integrated Seismic and Energy Retrofit Interventions on a URM Masonry Building: The Case Study of the Former Courthouse in Fabriano," Sustainability, MDPI, vol. 13(17), pages 1-30, August.

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