Other Symbols Used In Slab Design Theory

Stress

$\alpha$ proportion of total thickness comprising each outer layer

$\varepsilon$ strain

$\varphi$ angle of principal compressive stress and strain, measured anticlockwise with respect to x axis

Suffices

$A$ relating to pass A

$B$ relating to pass B

$C$ relating to pass C or compression-only reinforcement

$T$ relating to tension-only reinforcement

$a$ applied

$b$ bottom layer or face

$c$ concrete

$e$ effective

$m$ middle layer

$n$ general direction = 1 or 2

$s$ steel

$t$ top layer or face

$z$ at level of reinforcement

$1$ direction 1

$2$ direction 2

$>$ principal direction with greater compression or lesser tension

$<$ principal direction with greater tension or lesser compression