PSI - Issue 64

Rosario Montuori et al. / Procedia Structural Integrity 64 (2024) 841–848 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 8. Structural retrofitting of the foundation pile.

Fig. 9. Summary of the comparison between the structural solutions.

5. Conclusions The main aim of this work was the study of the seismic structural vulnerability and the identification of the possible retrofitting solutions of a 7 storey Hospital building belonging to the institute “G. Pascale Foundation” of Naples. In particular, the seismic vulnerability assessment has been carried out by means of static and dynamic analyses. The results, expressed in terms of the reliability indices, highlighted significant structural criticalities concerning the seismic-resistant part of the building under investigation, i.e. the reinforced concrete cores. Consequently, the developed structural solutions have been devoted to increase the resistance of the RC cores. In the first solution, the strengthening has been obtained by means of the concrete jacketing of the existing RC cores. The second intervention was based on the application of steel jacketing to the concrete walls. The proposed retrofitting solutions have been compared from the performance, economic and environmental point of view. Although more expensive, the second intervention appears to be the best solution from a seismic and environmental point of view. However, further studies and analyses could be performed by considering new materials and structural interventions and by employing a Life Cycle Cost Analysis (LCCA) to identify the best optimized retrofitting interventions. References Fiorino, L., Iuorio, O., Landolfo, R., 2014. Designing CFS structures: The new school bfs in naples. Thin-Walled Structures 78, pp. 37-47. Piccolo, A.P., Longobardi, G., Formisano, A., 2022. Seismic Vulnerability and Consolidation by FRP/FRCM Systems of a Masonry School Building in the District of Naples. Buildings 12 (11), art. no. 2040. Biglari, M., Hadzima-Nyarko, M., Formisano, A., 2022. Seismic Damage Index Spectra Considering Site Acceleration Records: The Case Study of a Historical School in Kermanshah. Buildings 12 (10), art. no. 1736. CEN, EN 1998-3, 2005. Eurocode 8: Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings. CEN, European Committee for Standardization. Piluso, V., Castaldo, P., Nastri, E., Pisapia, A., 2017a. Stochastic approach for theory of plastic mechanism control, AIMETA, 3, 2408-2420. Piluso, V.; Castaldo, P.; Nastri, E.; Pisapia, A., 2017b. Stochastic theory of plastic mechanism control: Parametric analysis, AIMETA, 3, 2421 2428. Montuori, R., Nastri, E., Piluso, V., Pisapia, A., 2023. Design procedure for failure mode control of linked column frames. Engineering Structures 296, art.no. 116937. Maglio, M., Montuori, R., Nastri, E., Piluso, V., Pisapia, A., 2024. Probabilistic design procedure for steel moment resisting frames equipped with FREEDAM connections. Structural Safety 109, art. no. 102465. Montuori, R., Nastri, E., Piluso, V., Pisapia, A., Todisco P., 2024. Application and Validation of a Simplified Approach to Evaluate the Seismic Performances of Steel MR-Frames. Applied Sciences 14 (3), art.no. 1037. Zizi, M., Bencivenga, P., Di Lauro, G., Laezza, G., Crisci, P., Frattolillo, C., De Matteis, G., 2021. Seismic Vulnerability Assessment of Existing Italian Hospitals: The Case Study of the National Cancer Institute “G. Pascale Foundation” of Naples. The Open Civil Eng. J. 15, pp. 182-202. Pisapia, A., Nastri, E., Montuori, R., Piluso, V., Frattolillo, C., 2023. Seismic Assessment and Structural Retrofitting of the Day-Hospital Building G. Pascale Foundation. Applied Sciences 13(3), art.no. 1667. DM 17.01.2018: New Technical Code for Constructions, Ministry of Infrastructures and Transports, 2018. Circular n.7 of 21.01.2019: Instruction for Application of Updating of Technical Codes for Constructions.