PSI - Issue 78

Alessandro Pisapia et al. / Procedia Structural Integrity 78 (2026) 568–575

575

storey, where the lateral stiffness is typically higher and, as a result, the assumption of an infinitely rigid diaphragm may not be valid. References Ju, S.H., Lin, M.C., 1999. Comparison of Building Analyses Assuming Rigid or Flexible Floors. Journal of Structural Engineering 125(1), 25-31. Moeni, M., Rafezy, B., 2011. Investigation into the Floor Diaphragms Flexibility in Reinforced Concrete Structures and Code Provision. Global Journal of Researches in Engineering 11(1), 1-13. Zhang, D., Fleischman, R.B., 2016. Establishment of performance-based seismic design factors for precast concrete floor diaphragms. Earthquake Engineering & Structural Dynamics 45, 675-698. Pecce, M., Ceroni, F., Maddaloni, G., Iannuzzella, V., 2017. Assessment of the in-plane deformability of RC floors with traditional and innovative lightening elements in RC framed and wall structures. Bulletin of Earthquake Engineering 15, 3125-3149. Eurocode 8: Design of structures for earthquake resistance – Part 1: General rules, seismic actions and rules for buildings (EN 1998‑1:2004). CEN (European Committee for Standardization), 2004. NTC 2018. Technical Standards for Construction – Ministerial Decree of January 17, 2018, Official Gazette of the Italian Republic, Part II‑bis, No. 29 of February 14, 2018.