A Model for Strength and Strain Analysis of Steel Fiber Reinforced Concrete / Betono, Armuoto Plienine Dispersine Armatura, Stiprio Ir Deformaciju Apskaiciavimo Modelis

Abstract

The article proposes a model for strength and stain analysis of steel fiber reinforced concrete (SFRC). The model is based on general principles for creating and modelling structural composites and on reinforced concrete code. Differently from other examples, the elastic and plastic properties of the components (concrete and steel) of the introduced model are directly taken into account. The model gives an opportunity to determine tension and compression strength, the elasticity modulus of fiber concrete and the main parameters of its elasticity and plasticity. A good agreement between the obtained results and those of experiments performed by other investigators was confirmed. Differences between the ratios of theoretical and experimental values are insignificant and vary within the limits of 1.06-1.10. This model may be used for the analysis of reinforced concrete members reinforced by steel fibers (SFRC) in a dispersible way assuming stress distribution diagrams.

Experimental study of flexural behaviour of layered steel fibre reinforced concrete beams

“…The compression strength of a concrete is only slightly affected by the volume of fibres (Kaltakci et al 2007;Yazici et al 2007;Rizzuti, Bencardino 2014;Marčiukaitis et al 2011). Some researchers have reported increases in strength varying from 0% to 15% for a 1.5% fibre volume (Johnston 1984;Williamson 1974).…”

Constitutive Model of Steel Fibre Reinforced Concrete Subjected to High Temperatures

“…Various input data, such as proper geometry and boundary conditions, loading application and an appropriate material model are used to gain the most suitable results [2,3]. This paper focuses on the last point -material model simulation.…”

Analytical model of composite floors with steel fibre reinforced concrete slab subjected to fire

“…This behaviour is possible only in case of using the ductile material. It was proved that steel fibre reinforced concrete is sufficiently ductile for creating the membrane action (Fike, Kodur 2011;Meskenas et al 2014;Marciukaitis et al 2011). Partial differential equations describing the behaviour of the slab in the case of large deflections were introduced by Föppl and von Kármán as early as in the 1910s.…”