Slab Thickness

[MOOK]

To determine slab thickness for deflection criteria, ACI code use equations such as

ln/30 and ln/33

where

ln = clear span of slab

Is ln the short dimension of the slab or the larger dimension?? and where in the code it is mentioned?

 

[MarcG]

ln is the long direction, defined at the end of section 9.5.3.3

 

[MOOK]

ln is the long direction, defined at the end of section 9.5.3.3

Thanks MarcG, I found it in ACI code.