Minimum Reinf in Footings
Minimum Reinf in Footings
(OP)
Do footings have to have enough reinforcement to meet the requirements of AS3600 8.1.4 Minimum Strength Requirements?
It seems to be a lot of reinforcement for a footing where the calculated moments are much less than the cracking moment.
It seems to be a lot of reinforcement for a footing where the calculated moments are much less than the cracking moment.





RE: Minimum Reinf in Footings
If the loads are much less than cracking moment (ie acceptable as a plain concrete member) i would just provide minimum temperature and shrinkage reinf. bearing in mind the degree of restraint (if any) and that for members greater than 500 thick, reinf. can be calculated for D=250mm (to each surface).
Cheers
Liam
RE: Minimum Reinf in Footings
csd
RE: Minimum Reinf in Footings
However, for residential footings in Class H & E sites it would be wise to prevent brittle failure and AS2870 requires minimum reinforcement to be maintained if using the Standard Designs: Refer Fig.3.1 Notes 3 & 4 etc.