SLaMA-URM method for the seismic vulnerability assessment of UnReinforced Masonry structures: Formulation and validation for a substructure

An analytical procedure based on the SLaMA (Simplified Lateral Mechanism Analysis) method is proposed for seismic vulnerability assessment of UnReinforced Masonry (URM) structures. The considers an equivalent frame discretization structure (pier, spandrel, and joint elements) includes: (i) evaluation moment?rotation capacity curves at each pier-spandrel subassembly; (ii) hierarchy strength in (iii) calculation curve according to expected failure mechanism. Validation SLaMA-URM achieved a one-story URM substructure tested under lateral cyclic loading. predictions are compared with numerical ones from 2D continuous finite element (FE) model macro-modelling strategy. flexural components estimated using monolithic beam analogy, results those traditional sectional analysis. influence geometry subassembly global levels investigated. formulation also be considered strength. validated subjected in-plane Results, terms crack patterns curves, relatively good agreement experimental FE results, even when bilinear approximation used. potential buildings thus demonstrated, whose application larger planned as subsequent study. • A approach extended integrating subassembly-level provides estimation damage structure. analytical-based calculate joints.