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Unformatted text preview: maximum tensile stress σt in the steel, and
the maximum compressive stress σc in the concrete, assuming the cracking tensile strength of concrete σct to
be zero. Figure 146.1 Reinforced Concrete Beam Problem Sketch ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–323 VM146
Concrete (material 1)
E = 2 x 106 psi
σct = 0.0 psi
υ = 0.0
Steel (material 2)
E = 30 x 106 psi
υ = 0.3 Geometric Properties
b = 5 in
d = 6 in
A = 0.30 in2
M = 600 in-lb Analysis Assumptions and Modeling Notes
The bottom concrete element is lined with two spar elements to match the assumption given in the reference
of discrete (rather than smeared) reinforcement. A zero Poisson's ratio and an infinite crushing strength are also
assumed for the concrete to match the reference assumptions. An element width (in the X-direction) of 1.5 in.
is arbitrarily selected. Constraint equations are used along the beam depth to conveniently apply the load and
match the reference assumption that cross-sections remain plane. Dummy PIPE16 pipe elements are used to
"line" the constraint equati...
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