An asphalt pavement has a typical cross-section shown in figure below. The maximum permissible stresses of the road materials are as follows: • Base allowable bearing pressure = 0.18 MPa • Subgrade allowable pressure = 0.50 MPa Determine the following: a. Maximum allowable static wheel load, W that can be applied on the pavement if the radius of contact between tire and pavement is 180 mm

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Chapter2: Loads On Structures
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An asphalt pavement has a typical cross-section shown in figure below. The maximum
permissible stresses of the road materials are as follows:
Base allowable bearing pressure = 0.18 MPa
Subgrade allowable pressure = 0.50 MPa
Determine the following:
a. Maximum allowable static wheel load, W that can be applied on the pavement if
the radius of contact between tire and pavement is 180 mm.
b. The actual bearing stress induced on the base course layer when subgrade reaches
maximum allowable pressure.
c. The actual bearing stress induced on the subgrade when a static wheel load of 109
kN is imposed on the pavement.
Asphalt
50 mm
Base
180 mm
subgrade
3.20 m
Transcribed Image Text:An asphalt pavement has a typical cross-section shown in figure below. The maximum permissible stresses of the road materials are as follows: Base allowable bearing pressure = 0.18 MPa Subgrade allowable pressure = 0.50 MPa Determine the following: a. Maximum allowable static wheel load, W that can be applied on the pavement if the radius of contact between tire and pavement is 180 mm. b. The actual bearing stress induced on the base course layer when subgrade reaches maximum allowable pressure. c. The actual bearing stress induced on the subgrade when a static wheel load of 109 kN is imposed on the pavement. Asphalt 50 mm Base 180 mm subgrade 3.20 m
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