Izvorni znanstveni članak
Investigation of Residual Bearing Capacity of Inclined Sections of Damaged Reinforced Concrete Beams
Yevhenii Klymenko
orcid.org/0000-0002-4502-8504
; Odesa State Academy of Civil Engineering and Architecture
Zeljko Kos
orcid.org/0000-0002-4953-907X
; University North
Iryna Grynyova
orcid.org/0000-0001-7637-6029
; Odesa State Academy of Civil Engineering and Architecture
Kostiantyn Polianskyi
orcid.org/0000-0002-2615-3975
; Odesa State Academy of Civil Engineering and Architecture
Sažetak
The article reports on the results of the numerical and the laboratory tests to
determine the effect of concrete damages near support areas in compressed zone of
the reinforced concrete beams on their residual bearing capacity of inclined sections.
According to the experimental plan, 15 single-span freely supported experimental
samples with dimensions of 100×200×1200 mm made with different artificial
damages within the shear span aν (1d, 2d, and 3d) were tested. The numerical test of
prototypes was performed in software complex LIRA-SAPR 2017. The results of
laboratory and numerical experiments showed good convergence regarding the
bearing capacity, however, the nature of the fracture in samples B11-B14 did not
match. Empirical - conducting laboratory experiments on samples using modern
methods of measurement; numerical modelling – using software complex LIRA-SAPR
2017; analysis and statistical processing of the obtained research results; comparison
of the obtained results; abstraction; generalization; deduction; formulation of the
main conclusions and recommendations. The analysis found that the bearing
capacity decreases with increased area of damage and shear span. Conducting the
calculations in software complex LIRA-SAPR allows to predict the work elements and
determine the bearing capacity with good accuracy, but in comparison with the real
data there still are some differences in the character of destruction.
Ključne riječi
experimental; beams; damage; residual capacity
Hrčak ID:
251396
URI
Datum izdavanja:
9.7.2020.
Posjeta: 546 *