Bauteile aus Stahlfaserbeton und stahlfaserverstärktem Stahlbeton

Structural Elements of Steel Fibre Reinforced Concrete with or without Bar Reinforcement Tools for Design and Deflection Estimations according to the Guideline "Stahlfaserbeton" by DAfStb

The expected release of the guideline "Stahlfaserbeton" by 'German Committee for Reinforced Concrete' (DAfStb) offers a wide application range for the composite material steel fibre reinforced concrete (SFRC). Due to additional steel fibres in concrete considerable tension forces can be transferred between crack edges after reaching plain concrete's tensile strength. These forces can be accounted for in calculation of load bearing capacity. Adapted from common design methods and tools for plain reinforced concrete new procedures, tools and a computer application - based on spreadsheet analysis and optimisation methods - for SFRC are presented in this article. These allow for both bending design as well as deflection estimation of crosssections and structural systems made of SFRC with and without additional rebars. Their application - also in case of deflection estimation using non-linear methods - is demonstrated in two elaborated examples.