Dears,
Concerning the design of RC beams in a PT slab, i am trying to determine the most accurate way to design the beams (determining top and bottom reinforcement). in Ram concept all design procedure is based on design section analysis. i prefer designing beams as T beam section in order to enlarge the beam loading strip. the issue is that beam reinforcement output take into consideration all reinforcement existing in the slab therefor beams reinforcement section is lesser than the one expected.
is it more accurate to design the beams while there is no reinforcement in the slab???
Thank you.
I don't see a problem to consider the slab reinforcement myself, but if you wanted to make sure all the beam required reinforcement was located within the T beam stem, you could trim the strip (Column Strip) to "Beam Rectangle". Or you could make a narrow column strip with middle strip flanges and design the Column Strip for CS + MS resultants. See also: https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/4514/cross-section-trimming-tn