Civil Engineering Reference
In-Depth Information
s
t
Tension response
E
o
(1-
d
t
)
E
o
ε
t
el
t
ε
ε
pl
t
(a)
s
c
s
cu
Compression response
s
co
E
o
(1-
d
c
)
E
o
ε
c
ε
pl
ε
el
c
c
(b)
Figure 5.24 Response of concrete to uniaxial loading as given in ABAQUS [1.29].
In ABAQUS [1.29], reinforcement in concrete structures is typically
provided by means of rebars, which are 1D rods that can be defined singly
or embedded in oriented surfaces. Rebars are typically used with metal plas-
ticity models to describe the behavior of the rebar material and are super-
posed on a mesh of standard element types used to model the concrete.
With this modeling approach, the concrete behavior is considered indepen-
dently of the rebar. Effects associated with the rebar/concrete interface, such
as bond slip and dowel action, are modeled approximately by introducing
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