A six lane divided highway is to be designed to replace an existing highway. The present AADT (both directions) of 6000 vehicles is expected to grow at 5% per year. Assume SN = 4 and pt = 2.5. The percent of traffic on the design lane is 45%. Determine the design ESAL if the design life is 20 years and the vehicle mix is: %3D Passenger cars (4.44kN/axle) = 60% 2-axle single unit trucks (22.2kN/axle) = 30% 3-axle single unit trucks (31.11KN/axle) = 10% %3D

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A six lane divided highway is to be designed to replace an existing highway. The
present AADT (both directions) of 6000 vehicles is expected to grow at 5% per year.
Assume SN = 4 and pt = 2.5. The percent of traffic on the design lane is 45%.
Determine the design ESAL if the design life is 20 years and the vehicle mix is:
Passenger cars (4.44kN/axle) = 60%
2-axle single unit trucks (22.2kN/axle) = 30%
3-axle single unit trucks (31.11kN/axle) = 10%
Transcribed Image Text:A six lane divided highway is to be designed to replace an existing highway. The present AADT (both directions) of 6000 vehicles is expected to grow at 5% per year. Assume SN = 4 and pt = 2.5. The percent of traffic on the design lane is 45%. Determine the design ESAL if the design life is 20 years and the vehicle mix is: Passenger cars (4.44kN/axle) = 60% 2-axle single unit trucks (22.2kN/axle) = 30% 3-axle single unit trucks (31.11kN/axle) = 10%
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