Find the uniform flow discharge in a 5 ft diameter reinforced concrete pipe (RCP) on a longitudinal slope of 0.003. The flow depth at pipe is 3 ft. Use Table C-2 for roughness coefficient. Table C-2. Average Manning Roughness Coefficients for Closed Conduits (")Manning Roughness Coefficient(n)ConduitReinforced Concrete Pipe (RCP)0.013Corrugated Metal Pipe and Pipe Arch2-3/8 x 2 inch CorrugationsUnlinedHalf LinedFull Flow0.0240.0180.016d/D>=0.60d/D

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Find the uniform flow discharge in a 5 ft diameter reinforced concrete pipe (RCP) on a longitudinal slope of 0.003. The flow depth at pipe is 3 ft. Use Table C-2 for roughness coefficient.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

Find the uniform flow discharge in a 5 ft diameter reinforced concrete pipe (RCP) on a longitudinal slope of 0.003. The flow depth at pipe is 3 ft. Use Table C-2 for roughness coefficient.

Table C-2. Average Manning Roughness Coefficients for Closed Conduits (")
Manning Roughness Coefficient
(n)
Conduit
Reinforced Concrete Pipe (RCP)
0.013
Corrugated Metal Pipe and Pipe Arch
2-3/8 x 2 inch Corrugations
Unlined
Half Lined
Full Flow
0.024
0.018
0.016
d/D>=0.60
d/D<o.60
Fully Lined
3x1 inch Corrugations
6x2 inch Corrugations
Spiral Rib Pipe
Helically Wound Pipe
0.013
0.013
0.027
0.032
0.013
18-inch
0.015
24-inch
30-inch
36-inch
42-inch
48-inch
0.017
0.019
0.021
0.022
0.023
Plastic Pipe (HPDE and PVC)
Smooth
0.013
0.024
Corrugated
Vitrified Clay Pipe
0.014
Cast-Iron Pipe (Uncoated)
0.013
Steel Pipe
0.011
Brick
0.017
|Cast-In-Place Concrete Pipe
Rough Wood Forms
Smooth Wood or Steel Forms
0.017
0.014
() Based on materials and workmanship required by standard specifications.

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