Civil Engineering Reference
In-Depth Information
Chapter 3
Literature Survey on Shear in FRC Beams
3.1 Introduction
This chapter appears as inspiration for the af
rmation of Fenwick and Paulay in
1968:
An inquiring designer will not only want to know how to apply a safe design
procedure, but also wish to see the reason why a particular structural member is
likely to fail in a particular mode
“
[
1
].
Therefore, this chapter seeks to know in depth the shear behavior of structural
concrete elements made of
”
ber reinforced concrete in order to understand the
failure modes and to understand existing formulations of the Design Codes thus
may be suggestions, suggest any amendments or even propose new methods of
calculation that more faithfully reproduce the behavior of these elements. So, this
chapter presents the state-of-the-art on the shear behavior of
ber reinforced
concrete elements, complete and fully updated. Initially, the basic theory of shear
will be explained; then, the shear behavior of concrete with and without transverse
reinforcement, parameters in
fl
uencing the shear behavior; Codes (formulas,
comments and criticisms) and
nally, the shear behavior of hollow core slabs.
3.2 On Steel Fiber Reinforced Concrete (SFRC)
3.2.1 Introduction About FRC
What is
ber-reinforced concrete (FRC)?
The Model Code 2010 [
2
]denes FRC as a
“
composite material characterized
by a cement matrix and discrete
.
The matrix is made of either concrete or mortar. Fibers can be made of steel,
polymers, carbon, glass or natural materials, although this PhD will be entirely
focused in steel
bers (discontinuous)
”
bers.
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