00207036

Monograph

http://onlinepubs.trb.org/onlinepubs/sr/sr61f.pdf

STUDIES ARE REPORTED WHICH WERE CONDUCTED DURING THE MAIN AASHO ROAD TEST WHICH WERE NOT DIRECTLY ASSOCIATED WITH THE PRINCIPAL EFFECTS OF THE PAVEMENT OR BRIDGE RESEARCH BRANCHES AND THOSE STUDIES CONDUCTED PRIMARILY FOR THE DEPARTMENT OF THE ARMY DURING THE SPECIAL STUDY PROGRAM FOLLOWING THE MAIN TEST. THE EXPERIMENT DESIGN AND THE INSTRUMENTATION AVAILABLE DID NOT HAVE THE REFINEMENTS TO DETECT THE EFFECTS OF THE VARIABLES OF TIRE PRESSURE, TIRE DESIGN, VEHICLE SUSPENSIONS, AND THE SEVERAL VEHICLE AND AXLE CONFIGURATIONS USED IN THESE STUDIES. THE TESTS WERE CONDUCTED PRIMARILY TO DETECT GROSS TRENDS IN THE DYNAMIC MEASUREMENTS OF STRAIN, DEFLECTION, AND DYNAMIC AXLE LOADS, AMONG OTHERS. A STUDY WAS MADE TO DETERMINE THE DYNAMIC EFFECT ON BRIDGES AND PAVEMENTS OF COMMERCIAL CONSTRUCTION EQUIPMENT, AND TO RELATE THE DYNAMIC EFFECTS OF THESE VEHICLES TO THOSE OBSERVED FOR CONVENTIONAL DUAL-TIRE TRUCK UNITS. THE DYNAMIC EFFECTS WERE INVESTIGATED ON PAVEMENTS AND BRIDGES OF VEHICLES EQUIPPED WITH SPECIAL SUSPENSION SYSTEMS. THESE WERE COMPARED TO THE DYNAMIC EFFECTS OF CONVENTIONAL VEHICLES WITH SIMILAR AXLE LOADS AND TIRE PRESSURES. TEST BRIDGES WHICH SURVIVED TESTS WITH REPEATED HIGH OVERSTRESS WERE UTILIZED IN A STUDY OF FLEXURAL BRIDGE CAPACITY. TEST RESULTS ARE PRESENTED FOR STEEL, PRESTRESSED CONCRETE AND REINFORCED CONCRETE BRIDGE STRUCTURES.

Part F, 139 PP, 61 FIG, 101 TAB, 31 PHOT, 2 APP 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

1962

Highway Research Board Special Report

Axle load force; Concrete bridges; Construction equipment; Deflection tests; Dynamic tests; Highway bridges; Metal bridges; Pavements; Prestressed concrete; Reinforced concrete bridges; Steel bridges; Strain measurement; Suspensions; Tires; Vehicles

AASHO Road Test

Highways; Pavements; Vehicles and Equipment

TRIS, TRB

Sep 15 1994 12:00AM