Vertical reinforcing is required at 32 in. on center along an 80 ft CMU wall, with a bar at each end. Each bar length including splice projection is 15 ft. What total reinforcing length is needed?
Correct Answer
B) 465 lf
80 feet = 960 inches. At 32-inch spacing, there are 30 intervals and 31 bars including both ends. Multiplying by 15 feet gives 465 linear feet. Thirty bars omit an end; 32 bars add one. This is the stated straight-wall takeoff, not a complete reinforcement design.
Why This Is the Correct Answer
80 feet = 960 inches. At 32-inch spacing, there are 30 intervals and 31 bars including both ends. Multiplying by 15 feet gives 465 linear feet. Thirty bars omit an end; 32 bars add one. This is the stated straight-wall takeoff, not a complete reinforcement design.
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