An asphalt pavement has a typical cross-section shown in Figure SPC-802. The maximum permissible stresses of the road materials are as follows: 1. Base allowable bearing pressure 0.18 MPa Subgrade allowable pressure 0.50 MPa Determine the following: Maximum allowable static wheel load, W that can be applied on the surface layer if the radius of contact between tire and pavement is 186 mm. The actual bearing stress induced on the base course layer when subgrade reaches maximum allowable pressure. The actual bearing stress induced on the subgrade when a static wheel load of 104 kN is imposed on the pavement. a. b. c. Asphalt 50 mm Base 180 mm 3.20 m Subgrade Figure SPC-802 Typical Road Cross-Section

An asphalt pavement has a typical cross-section shown in Figure SPC-802. The maximum permissible stresses of the road materials are as follows: 1. Base allowable bearing pressure 0.18 MPa Subgrade allowable pressure 0.50 MPa Determine the following: Maximum allowable static wheel load, W that can be applied on the surface layer if the radius of contact between tire and pavement is 186 mm. The actual bearing stress induced on the base course layer when subgrade reaches maximum allowable pressure. The actual bearing stress induced on the subgrade when a static wheel load of 104 kN is imposed on the pavement. a. b. c. Asphalt 50 mm Base 180 mm 3.20 m Subgrade Figure SPC-802 Typical Road Cross-Section

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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HIGHWAY ENGINEERING
Design of Pavement: The thickness of a concrete pavement slab is 20 cm and has modulus of elasticisty and poisson's ratio of 3x105 kg/cm2 and 0.15, respectively. Determine the radius of relative stiffness of the slab if it is resting on a subgrade of 5 kg/cm3 modulus.
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