A northbound direction on an interstate highway consists of three lanesof flexible pavement. The subgrade CBR is 4.5, the overall standarddeviation is 0.38, and the reliability is 95%. The initial PSI is 4.5 and thefinal PSI is 2.5. Daily total northbound road traffic consists of 39,500 cars(each with two 2kip single axles), 775 buses ((each with two 19 kip singleaxles) and 1100 heavy trucks (each with two 10kip single axle and two34kip tandem axles). If the pavement is designed to last for 20 years,what should be its structural number?

Given. CBR=4.5 Standard deviation =0.38 Reliability=95% Initial PSI =4.5 Final PSI =2.5

A northbound direction on an interstate highway consists of three lanes of flexible pavement. The subgrade CBR is 4.5, the overall standard deviation is 0.38, and the reliability is 95%. The initial PSI is 4.5 and the final PSI is 2.5. Daily total northbound road traffic consists of 39,500 car (each with two 2kip single axles), 775 buses ((each with two 19 kip single axles) and 1100 heavy trucks (each with two 10kip single axle and two 34kip tandem axles). If the pavement is designed to last for 20 years, what should be its structural number?

A northbound direction on an interstate highway consists of three lanes of flexible pavement. The subgrade CBR is 4.5, the overall standard deviation is 0.38, and the reliability is 95%. The initial PSI is 4.5 and the final PSI is 2.5. Daily total northbound road traffic consists of 39,500 car (each with two 2kip single axles), 775 buses ((each with two 19 kip single axles) and 1100 heavy trucks (each with two 10kip single axle and two 34kip tandem axles). If the pavement is designed to last for 20 years, what should be its structural number?

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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