- Strength calculations in accordance with code sections 2.4.3.2, 2.4.4.2 and TR 43 section 6.10.4 are performed if appropriate.
- Unbonded post-tensioning tendons are assumed to have zero stress.
- The reinforcement type (as defined in the design section or design strip segment) is considered (PT or RC).
- The stress levels in the structure are determined by the moment envelope for the rule set (failure could occur on both faces).
- Reduced γ
m
factors are used in the strength calculations. For concrete in flexure, γ
m
= 1.3 and for reinforcement, γ
m
= 1.0. Note that for shear reinforcement calculations, the "0.95fyv" (Amendment 1 and 2) or "0.87fyv" (Amendment 3) values are changed to "1.0fyv".
- Code Rules are applied as shown in the following table.
Table 1. Accident rule mapping
Design System |
RC |
PT |
Beam |
(none) |
4.3.7
4.3.8
4.3.9* (reduced γ
m
)
|
One-Way Slab |
(none) |
4.3.7
4.3.8
4.3.9* (reduced γ
m
)
|
Two-Way Slab |
(none) |
(none) |
Note: * - 4.3.9 is applied only if
"beam" torsion is selected (see torsion design notes)