rigid pavement on a new interstate with 3 lanes i ach direction has been conservatively designed ith a 12-inch slab, an E, of 5.5 million psi, a

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A rigid pavement on a new interstate with 3 lanes in
each direction has been conservatively designed
with a 12-inch slab, an Ec of 5.5 million psi, a
concrete modulus of rupture of 700 psi, a load
transfer coefficient of 3.0, an initial PSI of 4.5, and a
TSI of 2.5. The overall standard deviation is 0.35,
the modulus of subgrade reaction is 290 lb/in°, and
the drainage coefficient is 0.9. The pavement was
designed for 600 30-kip tandem axles per day and
1400 20-kip single axle loads per day total for all 3
lanes. If the desired reliability is 90%, how long will
the pavement last in years?
Transcribed Image Text:A rigid pavement on a new interstate with 3 lanes in each direction has been conservatively designed with a 12-inch slab, an Ec of 5.5 million psi, a concrete modulus of rupture of 700 psi, a load transfer coefficient of 3.0, an initial PSI of 4.5, and a TSI of 2.5. The overall standard deviation is 0.35, the modulus of subgrade reaction is 290 lb/in°, and the drainage coefficient is 0.9. The pavement was designed for 600 30-kip tandem axles per day and 1400 20-kip single axle loads per day total for all 3 lanes. If the desired reliability is 90%, how long will the pavement last in years?
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