Part 4 (1/2)

TEST NO 1[I]

Marks on coluht 1-1/8-in round bars vertically

Band spacing--- 9 in vertically

Hooped with seven 32-in wire spirals about 2-in raise

Outside diameter of hoops--14-1/2 in

Total load at failure--1,360,000 lb

Remarks--Point of failure was about 22 in from the top Little indication of failure until ulti off of concrete near the top cap, due possibly to the cap not being well seated in the column itself

TEST NO 2

Marks on coluht 1-1/8-in round bars vertically

Band spacing about 13 in vertically

Wire spiral about 3-in pitch

Point of failure about 18 in from top

Top of cast-iron cap cracked at four corners

Ultimate load--1,260,000 lb

Remarks--Both caps apparently well seated, as was the case with all the subsequent tests

TEST NO 3

Marks on coluht 7/8-in round bars vertically

Hoops--1-3/4 in 3/16 in 14 in outside dia--13 in vertically

Ultimate load--900,000 lb

Point of failure about 2 ft from top