Masonry · Reinforced masonry

Reinforced masonry wall: out-of-plane bending calculator

Bending capacity per metre of a reinforced core-filled block wall, with the steel ratio limit.

Standard: AS 3700 Cl 8.6

Inputs in the worked example

The live calculator starts with these values; change any of them and every result, check and diagram updates instantly.

Result	Value	Unit
Effective steel (≤ 0.29·1.3 f′m b d/fsy)	565.0	mm²/m
Md = φ fsy As d (1 − 0.6 fsy As/(1.3 f′m b d))	16.67	kNm/m

Diagram for the worked example

Effective steel (≤ 0.29·1.3 f′m b d/fsy) = MIN(565,0.29*1.3*8*1000*95/500) = 565 mm²/m
Md = φ fsy As d (1 − 0.6 fsy As/(1.3 f′m b d)) = 0.75*500*565*95*(1-0.6*500*565/(1.3*8*1000*95))/1E6 = 16.675 kNm/m

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For preliminary design and education. Check every result against the current standard and your own engineering judgement before use.