Dat test case a beam having a parabolic depth to

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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 Material Properties 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 Loading 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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