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  36" HOLLOW ROUND PILES Next smaller Next larger
Low prestress level

36 in. hollow pile cross section with 13 strands in 31 inch circle
13 strands - fpc = 709

Design Criteria		 36 in. hollow round pile with 13 strands and 6 ksi concrete
f'c = 6 ksi
435 ton axial load 		36 in. hollow round pile with 13 strands and 7 ksi concrete
f'c = 7 ksi
516 ton axial load 		36 in. hollow round pile with 13 strands and 8 ksi concrete
f'c = 8 ksi
596 ton axial load
High prestress level

36 in. hollow pile cross section with 24 strands in 31 inch circle
24 strands - fpc = 1240

Design Criteria		 36 in. hollow round pile with 24 strands and 6 ksi concrete
f'c = 6 ksi
401 ton axial load 		36 in. hollow round pile with 24 strands and 7 ksi concrete
f'c = 7 ksi
481 ton axial load 		36 in. hollow round pile with 24 strands and 8 ksi concrete
f'c = 8 ksi
561 ton axial load