Performance of Fibre Reinforced Concrete Structures - Modelling of Damage and Reliability

Radomír Pukl; Tereza Sajdlová; Jan Červenka; Vladimir Červenka

doi:10.4028/www.scientific.net/KEM.711.690

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 711Performance of Fibre Reinforced Concrete...

Performance of Fibre Reinforced Concrete Structures - Modelling of Damage and Reliability

Abstract:

Steel fibre reinforced concrete (FRC) has higher ductility, it can save amount of convention reinforcement, labour and in consequence costs of the structure. However, broader use of SFRC as construction material is limited among others by lack of design codes. According to the previous study, reliability and safety of ordinary reinforced engineering can be verified using non-linear finite element analysis and several safety formats that are proposed in fib Model Code 2010. In the presented paper, safety formats are applied for fibre reinforced structures such as tunnel lining precast segment and individual approaches are compared. As tensile and shear cracks or compressive crushing can develop in the fibre reinforced concrete under severe conditions, the design combining numerical and experimental investigations together with safety formats is appropriate method how to obtain safe and reliable structure. Finite element method and advanced material models taking into account FRC properties such as shape of tensile softening branch, high toughness and ductility are described in the paper. Since the variability of FRC material properties is rather high, full probabilistic analysis seems to be the most appropriate format for evaluation of structural performance, reliability and safety.

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Periodical:

Key Engineering Materials (Volume 711)

Pages:

690-697

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.711.690

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Online since:

September 2016

Authors:

Radomír Pukl*, Tereza Sajdlová, Jan Červenka, Vladimir Červenka

Keywords:

Computer Simulation, Damage, Fiber Reinforced Concrete (FRC), Global Safety Formats, Reliability Assessment

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