00391026

Component

http://onlinepubs.trb.org...s/trr/1984/954/954-004.pdf

https://scholar.google.co...moto&publication_year=1984

A field program of strain and deflection measurements was conducted by the Construction Technology Laboratories for the Minnesota Department of Transportation to evaluate the effects of frozen support, tied-concrete shoulders, and tridem-axle loading on concrete pavement performance. The effects of tied-concrete shoulders are presented. Field measurements were obtained at three pavement project sites located on I-90 in Minnesota. At two of these sites, a 6-in.-thick tied-concrete shoulder was used. Measurements included edge and corner deflections and edge strains. Loadings applied were a 20-kip single axle, and a 42-kip tridem axle. Theoretical analysis was also conducted by using a finite-element program to determine the effect of a tied-concrete shoulder on concrete pavement response. Field measurements and theoretical analysis indicate that concrete pavement performance is improved when a tied shoulder is used. Deflections along a tied-shoulder joint can be conservatively taken as 85 percent of those along a free edge. Based on study results and analysis of data, it is concluded that for application to the AASHTO thickness design procedure, only one-half of the design 18-kip equivalent single-axle load applications needs to be considered for concrete pavements incorporating a tied-concrete shoulder. This recommendation results in a reduction of 1 in. in the required main-line slab thickness given by the AASHTO design procedure.

Publication of this paper sponsored by Committee on Rigid Pavements. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01419839

pp 28-37

1984

Transportation Research Record

0309036747

Print

Figures (9) ; References (7) ; Tables (7)

Axle load force; Axles; Concrete pavements; Deflection; Pavement performance; Road shoulders; Thickness; Tied concrete

Tridem axles

Geotechnology; Highways; Pavements; I23: Properties of Road Surfaces

TRIS, TRB

Dec 30 1984 12:00AM

• EFFECT OF FROZEN SUPPORT AND TRIDEM AXLES ON CONCRETE PAVEMENT PERFORMANCE
• ENVIRONMENTAL FACTORS IN FLEXIBLE PAVEMENT DESIGN
• FINITE-ELEMENT MODEL WITH STRESS-DEPENDENT SUPPORT
• K SUB R: THE RESILIENT MODULUS OF SUBGRADE REACTION
• PERFORMANCE OF CRUSHED-STONE BASE COURSES
• SEASONAL EFFECTS ON THE STRENGTH OF PAVEMENT STRUCTURES
• SEASONAL LOAD LIMIT DETERMINED BY THE CRITERION OF UNIFORM FAILURE RATE
• STRESSES IN FULL-DEPTH GRANULAR PAVEMENTS
• STRUCTURAL COMPARISON OF TWO COLD RECYCLED PAVEMENT LAYERS
• STRUCTURAL MODEL FOR CONCRETE BLOCK PAVEMENT
• USE OF SURFACE DEFLECTION FOR PAVEMENT DESIGN AND EVALUATION