Reinforcement layout for a drilled shaft concrete pier, designated as Type DS3. The circular concrete section contains continuous vertical reinforcement and added vertical reinforcement sized per the drilled shaft schedule, spaced at four inches center-to-center. An outer tie surrounds the vertical reinforcement with a three-inch clear cover, governed by specific contract notes. An inner holding tie provides internal lateral support with splices executed per the contract documents. Mat reinforcing lines intersect the section typical to the foundation design.
TO TIE 3" CLR TYPE DS3 HOLDING TIE, SPLICE PER CONTR OUTER TIE, SEE NOTE 9 MAT REINF, TYP ADDED VERT REINF PER "DRILLED SHAFT SCHED" CONT VERT REINF PER "DRILLED SHAFT SCHED" VERTS 4" CL-CL
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