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The road from the Volvo Truck assembly plant south of Dublin, VA has a single lane in each direction and is being replaced to meet the needs of the heavy trucks that are transported from the plant to 1-81. The designers determined that a rigid pavement was the best option and that the characteristics for design would consist of an initial PSI of 5.0 and a TSI of 2.5 with a required confidence of 92% and an overall standard deviation of 0.25. The characteristics of the Rigid Pavement include a 10- inch slab thickness (D), 100 lb/in³ modulus of subgrade reaction, 5 million lb/in² concrete modulus of elasticity, 850 lb/in² concrete modulus of rupture, a load transfer coefficient of 2.8 and the drainage coefficient of 0.9. Daily traffic is expected to consist of: • • 45 trucks consisting of two 22-kip single axles • 300 trucks consisting of a front 22-kip single axle and a rear 28-kip single axle, and • 50 trucks with a single 28-kip front axle and two 40-kip tandem axles (image to the right). How many years should the road last structurally?

The road from the Volvo Truck assembly plant south of Dublin, VA has a single lane in each direction and is being replaced to meet the needs of the heavy trucks that are transported from the plant to 1-81. The designers determined that a rigid pavement was the best option and that the characteristics for design would consist of an initial PSI of 5.0 and a TSI of 2.5 with a required confidence of 92% and an overall standard deviation of 0.25. The characteristics of the Rigid Pavement include a 10- inch slab thickness (D), 100 lb/in³ modulus of subgrade reaction, 5 million lb/in² concrete modulus of elasticity, 850 lb/in² concrete modulus of rupture, a load transfer coefficient of 2.8 and the drainage coefficient of 0.9. Daily traffic is expected to consist of: • • 45 trucks consisting of two 22-kip single axles • 300 trucks consisting of a front 22-kip single axle and a rear 28-kip single axle, and • 50 trucks with a single 28-kip front axle and two 40-kip tandem axles (image to the right). How many years should the road last structurally?

Structural Analysis
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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The road from the Volvo Truck assembly plant south of Dublin, VA has a single lane in each direction and is being replaced to meet the needs of the heavy trucks that are transported from the plant to 1-81. The designers determined that a rigid pavement was the best option and that the characteristics for design would consist of an initial PSI of 5.0 and a TSI of 2.5 with a required confidence of 92% and an overall standard deviation of 0.25. The characteristics of the Rigid Pavement include a 10- inch slab thickness (D), 100 lb/in³ modulus of subgrade reaction, 5 million lb/in² concrete modulus of elasticity, 850 lb/in² concrete modulus of rupture, a load transfer coefficient of 2.8 and the drainage coefficient of 0.9. Daily traffic is expected to consist of: • • 45 trucks consisting of two 22-kip single axles • 300 trucks consisting of a front 22-kip single axle and a rear 28-kip single axle, and • 50 trucks with a single 28-kip front axle and two 40-kip tandem axles (image to the right). How many years should the road last structurally?
Transcribed Image Text:The road from the Volvo Truck assembly plant south of Dublin, VA has a single lane in each direction and is being replaced to meet the needs of the heavy trucks that are transported from the plant to 1-81. The designers determined that a rigid pavement was the best option and that the characteristics for design would consist of an initial PSI of 5.0 and a TSI of 2.5 with a required confidence of 92% and an overall standard deviation of 0.25. The characteristics of the Rigid Pavement include a 10- inch slab thickness (D), 100 lb/in³ modulus of subgrade reaction, 5 million lb/in² concrete modulus of elasticity, 850 lb/in² concrete modulus of rupture, a load transfer coefficient of 2.8 and the drainage coefficient of 0.9. Daily traffic is expected to consist of: • • 45 trucks consisting of two 22-kip single axles • 300 trucks consisting of a front 22-kip single axle and a rear 28-kip single axle, and • 50 trucks with a single 28-kip front axle and two 40-kip tandem axles (image to the right). How many years should the road last structurally?
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