RAM Concept Help

Section 11.4 Shear Resistance of Beams (Prestressed)

  • See "Concrete "Core" Determination".
  • For sections with multiple values of f’c, the minimum f’c is used
  • If stirrups are provided, the depth of the section is considered to be the larger of 0.8 h or the actual tension reinforcing depth; otherwise the depth is considered to be the tension reinforcement depth.
  • Lightweight concrete is not considered.
  • Equation 11-9 is used if the 40% criterion of section 11.4.1 is met; otherwise equation 11-5 is used. When equation 11-5 is used, both the tension mild steel and the PT in the tension zone is used to determine ρw.
  • Equations 11-13 and 11-15 are implemented.
  • Section 11.1.2 is implemented (but optional 11.1.2.1 is not).
  • Sections 11.5.2, 11.5.4.1, 11.5.4.3 and 11.5.6.9 are implemented.
  • A minimum reinforcement criterion of section 11.5.5 is implemented; if the member is a slab, then this requirement is waived per 11.5.5.1a.
  • Axial Compression (or Tension) is not considered
  • If "beam" torsion design is selected, see "Section 11.6 Beam Torsion" for further requirements.
  • No check is made to ensure that the structure is post-tensioned.