Flexural Capacities and Stress Block Parameters for High-Strength Concrete Column
ABSTRACT: Flexural behaviour
of reinforced high-strength concrete columns is studied in this paper. Tests of
12 high-strength reinforced concrete columns under eccentric loading were
conducted, with test parameters included the concrete strength, longitudinal reinforcement ratio,
load eccentricities and
lateral reinforcement characteristics i.e:
spacing and volumetric
ratio. Concrete strength used
were around of 50 and 70 MPa. From this study, the main result shows that
curvature ductility increase with increasing volumetric ratio or reduction of
tie spacing for lateral reinforcement. Comparison between stress block
parameter models developed by
many researchers with
the test results
was evaluated. It
is found that
the model adopted
in the Indonesian National
Standard (SNI 03-2847-2002) and ACI need to be modified before they can be
utilized in the flexural design of structures made of high-strength concrete.
Author: Antonius
Journal Code: jptsipilgg120002
