Figure (1) shows a pavement structure composed of three layers with their details. If the HMA and the base layers are combined into one layer with the same total thickness (HMA+base layers), what should be the equivalent elastic of the combined layer modulus so the tensile strain at the bottom of the the HMA= 0.0006 in.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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1. Figure (1) shows a pavement structure composed of three layers with their details. If the HMA and
the base layers are combined into one layer with the same total thickness (HMA+base layers), what
should be the equivalent elastic of the combined layer modulus so the tensile strain at the bottom of
the the HMA= 0.0006 in.
30000 Ib
150 psi
E, = ?
6 in
HMA layer
Ej = 400,000 psi
V;=0.4
Granular base
E = 20,000 psi
V=0.4
20 in
layer
Subgrade layer
E3 = 10,000 psi
Vz=0.4
%3D
Transcribed Image Text:1. Figure (1) shows a pavement structure composed of three layers with their details. If the HMA and the base layers are combined into one layer with the same total thickness (HMA+base layers), what should be the equivalent elastic of the combined layer modulus so the tensile strain at the bottom of the the HMA= 0.0006 in. 30000 Ib 150 psi E, = ? 6 in HMA layer Ej = 400,000 psi V;=0.4 Granular base E = 20,000 psi V=0.4 20 in layer Subgrade layer E3 = 10,000 psi Vz=0.4 %3D
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