Open AccessCRACKING AND STRAIN ANALYSIS OF BEAMS REINFORCED WITH COMPOSITE BARS / KOMPOZITINIAIS STRYPAIS ARMUOTŲ SIJŲ PLEIŠĖJIMO IR DEFORMACIJŲ ANALIZĖ
Author(s) -
Edgaras Timinskas,
Ronaldas Jakubovskis,
Adas Meškėnas,
Eugenijus Gudonis
Publication year - 2012
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2012.54
Subject(s) - materials science , beam (structure) , structural engineering , cracking , composite material , fibre reinforced plastic , deflection (physics) , finite element method , reinforced concrete , engineering , optics , physics
The paper discusses the results of experimental and numerical modelling using two beams reinforced with GFRP bars. One beam was made of plain concrete while the other contained short steel fibres. The influence of steel fibres on deflection and cracking behaviour was studied. A comparative analysis of experimental results has shown that steel fibres significantly reduce deflections and average crack width of the beam. Moreover, an addition of steel fibres to the concrete mix led to a more ductile failure mode of the beam. Numerical analysis employing nonlinear finite element software ATENA has revealed that a good agreement between calculated and experimental results regarding an ordinary concrete GFRP reinforced beam can be obtained