The paper concerns precast tunnel segments for the new Line 9 of the Barcelona (Spain) Metro where the conventional reinforcement (rebars) may be partially substituted by steel fibers. After the experimental determination of the material properties, NonLinear Fracture Mechanics analyses allowed to study the structural behavior of the tunnel segments with different types of reinforcement. Finally, an optimized reinforcement, based on a combination of rebars and steel fibers, is proposed.
Numerical Simulations of SFRC Precast Tunnel Segments
PLIZZARI, Giovanni;COMINOLI, Luca
2005-01-01
Abstract
The paper concerns precast tunnel segments for the new Line 9 of the Barcelona (Spain) Metro where the conventional reinforcement (rebars) may be partially substituted by steel fibers. After the experimental determination of the material properties, NonLinear Fracture Mechanics analyses allowed to study the structural behavior of the tunnel segments with different types of reinforcement. Finally, an optimized reinforcement, based on a combination of rebars and steel fibers, is proposed.File in questo prodotto:
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