A spiral column 9.0 m high with a diameter of 60 cm has a 10 mm
diameter spiral reinforcement with 6.25 cm pitch. It has 12pc 20 mm
diameter main reinforcing bars. Compute for the number of 10 mm
diameter steel bars needed for 18 pieces. Use 6 m commercial length
of RSB. Include all the illustrations. Summarize your answers in a
table.
A spiral column 9.0 m high with a diameter of 60 cm has a 10 mm diameter spiral reinforcement with 6.25 cm pitch. It has
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