00607738

Component

http://onlinepubs.trb.org...trr/1990/1286/1286-019.pdf

https://scholar.google.co...Cobb&publication_year=1990

AASHTO's load equivalence factors are evaluated with the aid of a computational model for predicting flexible pavement response. First, the VESYS 5 computer program was verified to assure that it could be used to conduct computer road tests. Following this, damage produced by steering axles at the AASHO Road Test was evaluated in an effort to quantify the error in the AASHTO equivalence factors, because steering axles were neglected in the development of these equivalencies. Next, the computer model was used in the conduct of computer road tests with the goal of developing equivalence factors for conditions not present at the AASHO Road Test site. Finally, exponential relationships relating pavement deflections and strains to load equivalencies based on cracking and rutting were developed.

This paper appears in Transportation Research Record No. 1286, Design and Evaluation of Rigid and Flexible Pavements 1990. 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

01411074

p. 192-205

1990

Transportation Research Record

0309050707

Figures (16) ; References (11) ; Tables (5)

Axles; Computer programs; Deflection; Errors; Flexible pavements; Load factor; Pavement cracking; Pavements; Ruts (Pavements); Simulation; Steering; Strain (Mechanics)

AASHO Road Test; American Association of State Highway and Transportation Officials

Load equivalence factors; Rut

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Apr 30 1991 12:00AM

• AASHTO FLEXIBLE PAVEMENT DESIGN METHOD: FACT OR FICTION?
• AGGREGATE INTERLOCK: A PURE-SHEAR LOAD TRANSFER MECHANISM
• ASSESSMENT OF DAMAGE CAUSED TO PAVEMENTS BY HEAVY TRUCKS IN NEW ENGLAND
• CONTROL OF FAULTING THROUGH JOINT LOAD TRANSFER DESIGN
• EFFECT OF FRACTURE HEALING ON LABORATORY-TO-FIELD SHIFT FACTOR
• EFFECT OF LANE WIDENING ON LATERAL DISTRIBUTION OF TRUCK WHEELS
• EVALUATION OF THE SUBBASE DRAG FORMULA BY CONSIDERING REALISTIC SUBBASE FRICTION VALUES
• EVALUATION OF VARIABLES AFFECTING FLEXIBLE PAVEMENT THAWING FOR TIMING SPRING LOAD RESTRICTIONS
• EXTENSION OF LOAD EQUIVALENCY FACTORS FOR VARIOUS PAVEMENT CONDITIONS
• FATIGUE DAMAGE PROPERTIES OF ASPHALTIC CONCRETE PAVEMENTS
• FIELD INVESTIGATION OF PUNCHOUT DISTRESS IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT IN ILLINOIS
• FIELD PERFORMANCE AND EVALUATION OF THIN BONDED OVERLAYS
• HEAVILY LOADED TRAILERS: AN APPROACH TO EVALUATE THEIR INTERACTION WITH ASPHALT CONCRETE PAVEMENTS
• INFLUENCE OF AXLE GROUP SPACING ON PAVEMENT DAMAGE
• INTEGRATED COMPUTER MODEL TO ESTIMATE MOISTURE AND TEMPERATURE EFFECTS BENEATH PAVEMENTS
• MECHANISTIC DESIGN CONSIDERATIONS FOR PUNCHOUT DISTRESS IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
• MICH-PAVE: A NONLINEAR FINITE ELEMENT PROGRAM FOR ANALYSIS OF FLEXIBLE PAVEMENTS
• OVERLAY DESIGN METHOD FOR FLEXIBLE PAVEMENTS IN ARIZONA
• PREDICTION OF DAMAGE TO FLEXIBLE PAVEMENTS IN SEASONAL FROST AREAS
• PRESTRESSED CONCRETE PAVEMENT: INSTRUMENTATION, BEHAVIOR, AND ANALYSIS OF HORIZONTAL MOVEMENTS
• PROBABILISTIC MODELING OF FLEXIBLE PAVEMENTS
• THAW WEAKENING OF PAVEMENT STRUCTURES IN SEASONAL FROST AREAS
• VALIDATION OF CONCRETE PAVEMENT RESPONSES USING INSTRUMENTED PAVEMENTS