Assessment of Shear Strength of Reinforced Concrete Beam-Column Joints
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Date
2017-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
Even though beam-column joint is one of the most critical regions in reinforced concrete
frames, a little attention is paid to the design of beam-column joints in Ethiopian practice. In
this study shear strength of beam-column joints RC building frames designed to old EBCS is
investigated. Shear strength of selected beam- column joints of a G+5 building has been
assessed. The building is analyzed for seismic actions and the shear strength of the beamcolumn
joint
is
estimated
using
both
empirical
expressions
and
analytically
by
using
VecTor2
finite
element
computer
program.
Joints
in
the
fourth
story
are selected to be assessed under
monotonic loading for a constant column axial load. The study showed that there is a
significant variation between result from analysis in VecTor2 and provisions in
EBCSEN1998-1 (2013). From the investigation on the interior joints, the interior joint
satisfies both ductility and shear strength requirement after column jacketing The maximum
shear stress occurred at a story drift angle of 1.01% before column jacketing and it occurred
at a story drift angle of 4.63% after column jacketing. This study is not enough in exposing
the problems regarding design and detailing of beam-column joints in Ethiopian practice.
Laboratory investigation is highly recommended due to its accuracy compared to software
simulations.
Description
Keywords
Concrete Beam-Column, Joints, Shear Strength, Reinforced Concrete