A1 - Burchenya, Sofiya
A1 - Shmyh Roman
PB - The Lublin Branch of the Polish Academy of Sciences
N2 - The results of bearing capacity, deformability
and fracture toughness of reinforced concrete beams with
the external reinforcement in the form of steel cut and
stretchy sheet, obtained due to the conducting of the
experiment and mathematical simulation which were
made of concrete of C40/50 class are given in the article.
Mathematical simulation of beam structures is done on
the basis of the deformation model which allows to
conduct calculations of the unified methodological
positions of different elements with diverse configuration
of cross section and reinforcement as well as take into
consideration elastic and plastic properties of concrete
and reinforcement, assessing the actual stress-strain state
of sections of reinforced concrete elements at different
loading levels, including ultimate one. The deformation
model is based on the actual diagrams use of concrete and
reinforcement materials deformation and conditions of
efforts balance in the normal section and hypothesis of
flat sections. The theoretical value of bearing capacity and
deformability, obtained as a result of the mathematical
simulation was compared to the experimental data. The
satisfactory coincidence of the mathematical calculation
of bearing capacity, deformability, fracture toughness and
experimental data gives an opportunity to use the
algorithm not only for beam structures with bar
reinforcement but also for beam structures with the
external reinforcement in the form of steel cut and
stretchy sheet.
KW - mathematical simulation
KW - bearing capacity
KW - deformability
KW - fracture toughness
KW - beam structure
KW - steelcut and stretchy sheet
KW - deformation model
T1 - Mathematical Simulation of Reinforced Concrete Beams with the External Reinforcement in the Form of Steel Cut and Stretchy Sheet