PSI - Issue 44

1876 Giacomo Iovane et al. / Procedia Structural Integrity 44 (2023) 1870–1876 Giacomo Iovane et al. / Structural Integrity Procedia 00 (2022) 000 – 000 7 concentric braced and eccentric braced frames), while local types include reconstruction, repair and strengthening of single timber elements, joints and floors. It is apparent as the systems using timber-based materials represent suitable retrofit solutions, which are potentially able to contemporarily provide improvement of structural, thermal and also acoustic performances of existing buildings. In particular, low mass of timber induces a not significant increment of the overall masses, which is a favorable condition, considering that consequently the seismic actions are not significantly augmented and the foundation are not significantly burdened; the intervention is reversible, as it is a dry construction and each component can be easily substituted; timber-based materials have basically good thermal and acoustic insulation properties, moreover, additional insulating materials with small thicknesses can be used; the intervention is eco-sustainable and ecofriendly, because the materials can be recycled and reused for other applications with low environmental impact. Surely performances of each system should be analyzed and compared in terms of structural, energetic, acoustic and sustainability requisites. This will allow to fix the main features, to capture pros and cons of interventions and to propose possible either improvements or alternative solutions aimed at optimizing the reinforcing systems. Thus the classification of the interventions can be expanded and further refined. References Aloisio, A., Pellicciari, M., Sirotti, S., Boggian, F., Tomasi, R. 2022. Optimization of the structural coupling between RC frames, CLT shear walls and asymmectric friction connections. Bull of Earth Eng 20, 3775-3800. Amarone, N., Iovane, G., Marranzini, D., Sessa, R., Faggiano, B., Guedes, M.C. 2021. Arundo donax L. as sustainable building material. In: World Renewable Energy Congress. Lisbon, Portugal, 26-30 July 2021. Bedon, C., Sciomenta, M., Fragiacomo, M., 2020. Mechanical Characterization of Timber-to-Timber Composite (TTC) Joints with Self-Tapping Screws in a Standard Push-Out Setup. Appl. Sci. 2020, 10, 6534; doi:10.3390/app10186534. Caprino, A., Lorenzoni, F., Carnieletto, L., Feletto, L., De Carli, M., da Porto, F., 2021. Integrated seismic and energy retrofit interventions on a urm masonry building: The case study of the former courthouse in fabriano. Sustain. 13. Cassol, D., Giongo, I., Ingham, J., Dizhur, D., 2021. Seismic out-of-plane retrofit of URM walls using timber strong-backs. Constr. Build. Mater. 269, 121237. Ceraldi, C., Sandoli, A., Lippiello, A., Prota, A. 2022. Role of timber pegs in reinforcing stop-splayed scarf joints. Jour of Build Eng 56, 104786. Di Lorenzo, G., Colacurcio, E., Formisano, A., Massimilla, A., Landolfo, R. 2020. State-of-the-art on steel exoskeletons for seismic retrofit of existing RC buildings. Ingegneria Sismica, 37(1):33 – 50. Dodoo, A., Gustavsson, L., Sathre, R., 2014. Lifecycle carbon implications of conventional and low-energy multi-storey timber building systems. Energy Build. 82, 194 – 210. Filippidou, F., jimenez Navarro, J. 2019. Achieving the cost- effective energy tranformation of euroipe’s buildings, EUR 29906 EN. Publication office of the European union. Luxemburg, 2019. Fufa, S.M., Skaar, C., Gradeci, K., Labonnote, N., 2018. Assessment of greenhouse gas emissions of ventilated timber wall constructions based on parametric LCA. J. Clean. Prod. 197, 34 – 46. Ingrao, C., Scrucca, F., Tricase, C., Asdrubali, F., 2016. A comparative Life Cycle Assessment of external wall-compositions for cleaner construction solutions in buildings. J. Clean. Prod. 124, 283 – 298. Menna, C., Del Vecchio, C., Di Ludovico, M., Mauro, G.M., Ascione, F., Prota, A., 2021. Conceptual design of integrated seismic and energy retrofit interventions. J. Build. Eng. 38, 102190. Miglietta, M., Damiani, N., Guerrini, G., Graziotti, F., 2021. Full‐scale shake‐table tests on two unreinforced masonry cavity‐wall buildings: effect of an innovative timber retrofit, Bulletin of Earthquake Engineering. Springer Netherlands. Paleari, S. 2018. Natural disaster in Italy: do we invest enough in risk prevention and mitigation? Int. journa. Of env, Studies 75 (4), 673-687. Piazza, M., Ballerini, M., 2000. Experimental and numerical results on timber – concrete composite floors with different connection systems. 6th WCTE, Proceedings of the World Conference on Timber Engineering, Whistler Resort, British Columbia, Canada, CD. Pozza, L., Evangelista, F., Scotta, R., 2017. CLT used as seismic strengthener for existing masonry walls. Atti del XVII convegno ANIDIS L’Ingegneria sismica Ital. 210– 220. Riccadonna, D., Walsh, K., Shiro, G., Piazza, M., Giongo, I., 2020. Testing of long-term behaviour of pre-stressed timber-to-timber composite (TTC) floors. Construction and Building Materials. DOI:10.1016/j.conbuildmat.2019.117596. Sandoli, A., Calderoni, B., Prota, A 2021. A displacement-based design methodology devoted to post-tensioned timber walls for seismic retrofit of an existing RC building. Ingegneria Sismica 38(2), 70-94. Sessa, R., Iovane, G., Fiorino, L., Landolfo, R., Faggiano, B., Pone, S. 2020. The structural use of Arundo Donax L. for the design of a sustainable architecture. World Conference on Timber Engineering (WCTE 2020), 24 ‐ 27 August 2020, Santhiago, Chile. Smiroldo, F., Paviani, I., Giongo, I., Zanon, S., Albatici, R., Piazza, M., 2021. An Integrated Approach to Improve Seismic and Energetic Behaviour of RC Framed Buildings Using Timber Panels. Sustainability 2021, 13, 11304. Valluzzi, M.R., Saler, E., Vignato, A et al. 2021. Nested buildings: An innovative strategy for the integrated seismic and energy retrofit of existing masonry buildings with CLT panels. Sustainability 13(3), 118.