I have read a bit about how to reinforce posts but haven't gotten an answer as to why reinforcement is used.
Is the reinforcement meant to reduce the risk of the concrete cracking or does the reinforcement make the concrete more durable, for pressure or lateral forces?
For posts in the ground, should one use a short rebar between the long rebars (that run through the entire post) or is that overkill? My posts are at most about 1 meter.
Is the reinforcement meant to reduce the risk of the concrete cracking or does the reinforcement make the concrete more durable, for pressure or lateral forces?
For posts in the ground, should one use a short rebar between the long rebars (that run through the entire post) or is that overkill? My posts are at most about 1 meter.
So the reinforcement is intended to make the concrete/base more stable laterally?
Do I understand you correctly?
Do I understand you correctly?
Thank you!
My conclusion is that it is doubtful whether reinforcement is needed in foundations that are dug into very stable soil. There won't be much lateral force.
My conclusion is that it is doubtful whether reinforcement is needed in foundations that are dug into very stable soil. There won't be much lateral force.
On the contrary. Reinforcement is important.
if there is any skew load on the plinth (which there will definitely be since no load is likely to be exactly 90 degrees), you will get shearing and tensile forces. As the film shows.
if there is any skew load on the plinth (which there will definitely be since no load is likely to be exactly 90 degrees), you will get shearing and tensile forces. As the film shows.
I agree that reinforcement is important, but for deck foundation posts buried in the ground, it might not be as crucial as a high concrete pillar above ground.
I ended up reinforcing with 2-3 pieces of 10mm reinforcement per tube (15-20 cm). Where possible, I anchored the reinforcement into rock. Otherwise, I drove the reinforcement bar 20-30 cm into the ground beneath the actual post. The tubes were leveled, and then adjustable post shoes will be added in the final pouring. However, I find it hard to see how there can be significant lateral forces in such a construction.
24 posts 52 bags of coarse concrete
I ended up reinforcing with 2-3 pieces of 10mm reinforcement per tube (15-20 cm). Where possible, I anchored the reinforcement into rock. Otherwise, I drove the reinforcement bar 20-30 cm into the ground beneath the actual post. The tubes were leveled, and then adjustable post shoes will be added in the final pouring. However, I find it hard to see how there can be significant lateral forces in such a construction.
24 posts 52 bags of coarse concrete