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Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Q :A flexible pavement has a 4-
inch asphalt surface layer (a1=0.35),
10-inch base layer (a2-D0.18), and 10-
inch subbase layer (a3=0.11). These
layers are designed to carry 400
single axles of 20kip/day and 900
tandem axles of 35kip/day. The CBR
of subgrade is 8. Overall standard
deviation is O.45. Initial PSI is 4.2 and
final PSI is 2.5. Design life is 25
years. Drainage coefficient is 1.0.
Find R%. *
Transcribed Image Text:Q :A flexible pavement has a 4- inch asphalt surface layer (a1=0.35), 10-inch base layer (a2-D0.18), and 10- inch subbase layer (a3=0.11). These layers are designed to carry 400 single axles of 20kip/day and 900 tandem axles of 35kip/day. The CBR of subgrade is 8. Overall standard deviation is O.45. Initial PSI is 4.2 and final PSI is 2.5. Design life is 25 years. Drainage coefficient is 1.0. Find R%. *
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