Shear Capacity Of RC Rectangular Beams With
Continuous Spiral Transversal Reinforcement
Author(s)
C. G. Karayannis, C. E. Chalioris & P. D. Mavroeidis
Abstract
In this study the behaviour of reinforced concrete beams with rectangular spiral
reinforcement under monotonic loading is experimentally investigated. In this
direction, three beam specimens with ratio =α d / 2.67 were constructed and
tested in monotonic shear loading. The first specimen had common stirrups, the
second one spiral transversal reinforcement and the third one spiral transversal
reinforcement with favourably inclined legs. Based on the experimental results
and the behavioural curves of the tested beams it is deduced that the specimens
with continuous spiral shear reinforcement demonstrated 15% and 17%,
respectively, higher shear strength than the beam with closed stirrups. Further,
the beam with spiral transversal reinforcement with favourably inclined legs
exhibited enhanced performance and a rather ductile response whereas the other
beams showed brittle shear failure.
Keywords: inclined reinforcement, shear beams, spiral reinforcement, tests.
1 Introduction
It is generally accepted that the use of continuous spiral reinforcement in
reinforced concrete elements with cyclic cross section can substantially improve
the strength and the ductility of the concrete and henceforth the total seismic
response and capacity of the structural element [1, 2, 3, 4]. The extension of the
use of continuous spiral reinforcement in elements with rectangular cross
Keywords
inclined reinforcement, shear beams, spiral reinforcement, tests.
Related Book
Other papers in this volume
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