Reliability Of Material Geometrically Nonlinear Reinforced And Prestressed Concrete Structures英文电子书.pdf

Computers and Structures 82 (2004) 1021–1031 /locate/compstruc Reliability of material and geometrically non-linear reinforced and prestressed concrete structures Fabio Biondini a,*, Franco Bontempi b, Dan M. Frangopol c, Pier Giorgio Malerba a a Department of Structural Engineering, Technical University of Milan, Piazza L. da Vinci, 32, Milan 20133, Italy b Department of Structural and Geotechnical Engineering, University of Rome, ‘‘La Sapienza’’, Via Eudossiana, 18-00184 Rome, Italy c Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, CO 80309-0428, USA Accepted 5 March 2004 Available online 9 April 2004 Abstract A numerical approach to the reliability analysis of reinforced and prestressed concrete structures is presented. The problem is formulated in terms of the probabilistic safety factor and the structural reliability is evaluated by Monte Carlo simulation. The cumulative distribution of the safety factor associated with each limit state is derived and a reliability index is evaluated. The proposed procedure is applied to reliability analysis of an existing prestressed concrete arch bridge. 2004 Elsevier Ltd. All rights reserved. Keywords: Concrete structures; Non-linear analysis; Structural reliability; Bridges; Simulation 1. Introduction whose formulation accounts for the mechanical non- linearity due to the constitutive properties of materials