I have never seen architectural or structural drawings that did not indicate some amount of reinforcing for concrete piers.
Rebar cages for concrete piers.
The original 6 concrete cover rebar spacer wheel fits rebar sizes 3 through 5 and our 4 and 8 concrete cover pier wheels fit rebar sizes 3 through 7.
Reinforcement rebar cages reinforcement cages with verts protected prior to concrete pour fusion welded on centered stirrups a rebar cage pre assembled by pj s has allowed our customers to save time and accelerate their concrete pour schedules getting them paid sooner and the job done faster.
All are designed to properly position a reinforcing rebar steel cage in a drilled shaft with a concrete cover requirement but also work for other applications where concrete cover must be maintained.
Configurations are usually rectangular and round with the main bars contained with a ligature.
A larger diameter pier should have four or more pieces of vertical rebar.
For concrete exposed to weather or earth such as basement walls 6 bars and larger 2 inches 5 bars or smaller 1 inches.
For concrete not exposed to weather or in contact with the ground.
Vertical rebar reinforcement to develop a bending moment resistance.
Slabs walls and joists 14 and 18 bars inch.
Generally speaking you want 0 75 1 5 inches of cover this means concrete between the reinforcement and the edge of the footing so choose a pipe roughly 4 inches in diameter smaller than the diameter of your footing.
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Manual bar cages are typically used in pre casting as well as columns and main beams in large structures.
We usually recommend that a minimum of two pieces of 4 rebar be placed vertically in an 8 inch diameter concrete pier supporting a structure.
For concrete cast against and permanently exposed to earth such as footings 3 inches.
Our cage will include two types of steel reinforcement.