Concrete crack reduction in tunnel linings by steel fibre-reinforced concretes

Analytical solutions for flexural design of hybrid steel fiber reinforced concrete beams

“…In the present paper the length of localization zone has been used as a constant length parameter that affects the postpeak descending response of the load deformation curve where cracks are localized. The r-e approach is more suitable for HRC elements since distributed cracking and tension stiffening are expected [27]. For example application of superposition to add the contribution of reinforcement and fibers by updating the stress crack width relationship in the tensile zone of multiple cracks in under-reinforced flexural sections is challenging.…”

Experimental tests on the effect of temperature on the long-term behaviour of macrosynthetic Fibre Reinforced Concretes

“…The main advantages of the inclusion of fibres in structural concrete include: durability improvements by crack-width and permeability reduction; potential cost-savings when fibres substitute steel-reinforcing bars; and the mitigation of damage due to shrinkage and early age cracking. For these reasons, FRCs have were used for tunnel linings, bridge decks, airport pavements, slabs on grounds, industrial floors, dams, pipes, and marine structures [3][4][5][6][7].…”

Displacement and Deformation of the First Tunnel Lining During the Second Tunnel Construction

“…High performance concrete of C60 is used in this model. Buratti et al [23] and Meng et al [24] investigate the advantages of using Steel Fiber Reinforced Concrete (SFRC) for the tunnel lining. The SFRC tunnel lining can significantly reduce the crack width opening for a given stress field and satisfy the design criteria for load carrying ability and crack width.…”