Keywords: structural safety, reliability analysis, deep excavations, damage criteria, limit states, existing buildings, probabilistic analysis, numerical modelling, deformation parameters, reinforced concrete buildings, masonry buildings, strip foundations, raft foundations, pad foundations, concrete structures, masonry structures, underground station design, underground stations, Italy, metro stations
Structural safety of existing buildings near deep excavations
Structural safety of existing buildings near deep excavations is evaluated by computing exceeding probabilities of different damage criteria within a simplified probabilistic methodology based on monovariate or multivariate probabilistic analyses employing the results of a numerical model of the boundary value problem. Different limit domains, defined on one or more deformation parameters and associated to limit states, are used to contemplate: the type of the structural system (i.e., reinforced concrete or masonry buildings); the foundation typology (i.e., strip/raft or pad foundations). The sensitivity analysis is developed considering the design of a new underground station in Naples (Italy).