The following project and traffic data are available: Four-lane interstate highway Rolling terrain in rural location Design period 20 year Axle loads and expected repetitions are shown in table below Subbase-subgrade k = 150 lb/in³ Concrete modulus of rupture = 650 lb/in² Determine minimum thickness of a pavement with doweled joints and without concrete shoulders using the PCA design method. Axle load kips Expected repetitions Single axle 23 35642 21 55423 19 69821 Tandem axle 45 8755 43 15832 41 22547

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The following project and traffic data are available:
Four-lane interstate highway
Rolling terrain in rural location
Design period 20 year
Axle loads and expected repetitions are shown in table below
Subbase-subgrade k = 150 lb/in³
Concrete modulus of rupture = 650 lb/in²
Determine minimum thickness of a pavement with doweled joints and without concrete shoulders using the
PCA design method.
Axle load kips
Expected repetitions
Single axle
23
35642
21
55423
19
69821
Tandem axle
45
8755
43
15832
41
22547
Transcribed Image Text:The following project and traffic data are available: Four-lane interstate highway Rolling terrain in rural location Design period 20 year Axle loads and expected repetitions are shown in table below Subbase-subgrade k = 150 lb/in³ Concrete modulus of rupture = 650 lb/in² Determine minimum thickness of a pavement with doweled joints and without concrete shoulders using the PCA design method. Axle load kips Expected repetitions Single axle 23 35642 21 55423 19 69821 Tandem axle 45 8755 43 15832 41 22547
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