1) A six-lane highway (3 lanes in each direction) is to be designed to replace an existinghighway. The present AADT in one direction is 6000 and is expected to grow at 3% peryear. Assume SN = 4 and p = 2.5. Determine the design ESAL if the design life is 30 yearsand the vehicle mix is:Passenger cars (2000 lb/axle) = 60%2-axle single unit trucks (6000 lb/axle) = 30%3-axle single unit trucks (12000 lb/axle) = 10%2) Using the ESAL obtained in Problem #1, design a flexible pavement for an interstatehighway. Use the following information:R=95% and So = 0.45Modulus of asphalt concrete = 400,000 psiMr of base course material = 30,000 psiMr of subbase material = 15,000 psiMr value of subgrade = 8,000 psiAssume initial seviceability index = 4.5 and terminal serviceability index = 2.5.The pavement is to be exposed to moisture level approaching saturation more than 25% ofthe time. Quality of drainage is fair.

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1) A six-lane highway (3 lanes in each direction) is to be designed to replace an existing highway. The present AADT in one direction is 6000 and is expected to grow at 3% per year. Assume SN = 4 and p = 2.5. Determine the design ESAL if the design life is 30 years and the vehicle mix is: Passenger cars (2000 lb/axle) = 60% 2-axle single unit trucks (6000 lb/axle) = 30% 3-axle single unit trucks (12000 lb/axle) = 10% %3D

1) A six-lane highway (3 lanes in each direction) is to be designed to replace an existing highway. The present AADT in one direction is 6000 and is expected to grow at 3% per year. Assume SN = 4 and p = 2.5. Determine the design ESAL if the design life is 30 years and the vehicle mix is: Passenger cars (2000 lb/axle) = 60% 2-axle single unit trucks (6000 lb/axle) = 30% 3-axle single unit trucks (12000 lb/axle) = 10% %3D

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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