Figure

Procedure for determining flexural reinforcement

Carry out analysis of beam to determine design moments (M) (see Table 3)

bd2 fck

Determine K from K =

bd2 fck

Determine K' from Table 4 or

Yes

No compression reinforcement required

1

Obtain lever arm z from Tab z = d [ 1+V1 - 3.53K

le 5 or use

< 0.95d

Calculate tension reinforcement required from M

fyd z

1

I

Check minimum reinforcement requirements (see Table 6)

Check minimum reinforcement requirements (see Table 6)

Outside scope of this publication

Compression reinforcement required

i

i

Calculate lev z=d [ i+-

er arm z from

yi - 3.53 K '

i

1

Calculate compression reinforcement required from

s fyd

Calculate tension reinforcement required from

K'fckbd2 fsc

Check maximum reinforcement requirements Asmax = 0.04 >4c for tension or compression reinforcement outside lap locations

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