Development Length
|
fy |
Specified yield strength for nonprestressed reinforcement |
|
ψr |
Factor used to modify development length based on confining reinforcement |
|
λ |
Modification factor to reflect the reduced mechanical properties of lightweight concrete relative to normal weight concrete of the same compressive strength |
|
f'c |
Compressive strength |
|
db |
Nominal diameter of bar, wire, or prestressing strand |