A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of Macro Synthetic Fibre in Segmental Tunnels
Fibre reinforced concrete is becoming widely utilized in segmental linings due to the improved mechanical performance, robustness and durability of the segments. Further, significant time and cost savings can be achieved in segment production and by reduced reject or repair rates of segments during temporary loading conditions. The replacement of traditional rebar cages with fibres further allows changing a crack control governed design to a purely structural design with more freedom in detailing. A further benefit of replacing steel rebar cages by fibres is the significantly reduced carbon footprint.
Recently completed research at the University of Brescia on full scale tunnel segments reinforced with macro synthetic fibres (MSF) confirmed the feasibility as well as the fulfilment of the structural requirements of the Model Code 2010. Parallel, field experience has shown that MSF reinforced concrete segments perform robust and dependable even under very difficult conditions.
This paper presents and discusses the key findings from the segment research as well as three successfully completed reference projects using MSF as primary structural reinforcement.
Use of Macro Synthetic Fibre in Segmental Tunnels
Fibre reinforced concrete is becoming widely utilized in segmental linings due to the improved mechanical performance, robustness and durability of the segments. Further, significant time and cost savings can be achieved in segment production and by reduced reject or repair rates of segments during temporary loading conditions. The replacement of traditional rebar cages with fibres further allows changing a crack control governed design to a purely structural design with more freedom in detailing. A further benefit of replacing steel rebar cages by fibres is the significantly reduced carbon footprint.
Recently completed research at the University of Brescia on full scale tunnel segments reinforced with macro synthetic fibres (MSF) confirmed the feasibility as well as the fulfilment of the structural requirements of the Model Code 2010. Parallel, field experience has shown that MSF reinforced concrete segments perform robust and dependable even under very difficult conditions.
This paper presents and discusses the key findings from the segment research as well as three successfully completed reference projects using MSF as primary structural reinforcement.
Use of Macro Synthetic Fibre in Segmental Tunnels
RILEM Bookseries
Serna, Pedro (editor) / Llano-Torre, Aitor (editor) / Martí-Vargas, José R. (editor) / Navarro-Gregori, Juan (editor) / Winterberg, Ralf (author)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2021 ; Valencia, Spain
Fibre Reinforced Concrete: Improvements and Innovations II ; Chapter: 67 ; 780-795
RILEM Bookseries ; 36
2021-09-05
16 pages
Article/Chapter (Book)
Electronic Resource
English
Use of Macro Synthetic Fibre in Segmental Tunnels
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