Title: Structural safety of existing buildings near deep excavations

Authors: Paolo Castaldo; Michele Calvello; Bruno Palazzo

Addresses: Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, SA, Italy ' Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, SA, Italy ' Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, SA, Italy

Abstract: 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).

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.

DOI: 10.1504/IJSTRUCTE.2014.060907

International Journal of Structural Engineering, 2014 Vol.5 No.2, pp.163 - 187

Available online: 04 May 2014 *

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