Pipe design A stretch of corrugated metal pipe (n = 0.024) is needed to convey a design storm flow rate of 32 cfs. Site conditions dictate a pipe slope of 0.002. If pipe sizes (diameters) are available in increments of 6 in., determine the minimum size pipe that will both convey the design flow rate and achieve a minimum scouring velocity of 3 ft/s. Assume the pipe is flowing full.   Tip: Determine the pipe diameter needed for a flow rate of 32 cfs, then do the same for a velocity of 3 ft/s, and round up to the nearest multiple of 6 inches

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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 Pipe design


A stretch of corrugated metal pipe (n = 0.024) is needed to convey a design storm flow rate of 32 cfs.
Site conditions dictate a pipe slope of 0.002. If pipe sizes (diameters) are available in increments of 6
in., determine the minimum size pipe that will both convey the design flow rate and achieve a
minimum scouring velocity of 3 ft/s. Assume the pipe is flowing full.

 

Tip: Determine the pipe
diameter needed for a flow rate of 32 cfs, then do the same for a velocity of 3 ft/s, and round up to the
nearest multiple of 6 inches

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