Issue 43

P. Zampieri et alii, Frattura ed Integrità Strutturale, 43 (2018) 182-190; DOI: 10.3221/IGF-ESIS.43.14 190 [25] Severini, L., Cavalagli, N., Zampieri, P., Simoncello, N., Gusella, V., Pellegrino C., Effects of spread and local geometrical irregularities on the horizontal carrying capacity of masonry arches, Atti del XVII Convegno ANIDIS L'ingegneria Sismica in Italia, (2017) 27-33 . [26] Clemente, P., Saitta, F. Analysis of No-Tension Material Arch Bridges with Finite Compression Strength Journal of Structural Engineering., 143(1) (2017). NOMENCLATURE d k Displacement of the settlement of the support on the current step; d k-1 Displacement of the settlement of the support on the previously step; Δd k Different of the displacement between two next steps; R α, 0 Reaction force in the α direction at the undamaged condition of the arch; R α,k Reaction force in the α direction at the damage condition of the arch on the current step; α Direction angle of the settlement PVW Principe of the Virtual Work g i Gravitational force applied to each i-rigid block of the arch; v i Vertical virtual displacement due to g i applied to each i-rigid block of the arch; s(X 0 , Y 0 ) Virtual displacement of the settled springing; Ω 0 Initial configuration of the arch; Ω k Configuration of the arch on the current step; ST Static condition of the arch; KT Kinematic condition of the arch.