00730303

Component

https://doi.org/10.3141/1540-12

http://scholar.google.com...rphy&publication_year=1996

Permitting superheavy loads may increase the rate of pavement damage and the cost of maintenance. An analysis of a proposed superheavy load route (FM519) to evaluate the potential pavement damage caused by a planned superheavy load move is presented. Falling weight deflection (FWD) tests and backcalculations of layer moduli were performed on the FM519. FWD tests and backcalculations of layer moduli were performed on the pavement before and after the superheavy load was moved. ELSYM5 and BISAR were used to evaluate the pavement responses using the backcalculated layer moduli from FWD data. The predictions of surface deflections from ELSYM5 and BISAR were close to (within 10% of) the measured deflections from FWD tests. The FWD data and analyses show that the existing pavement structure is adequate for the planned superheavy load move. Finally, the permit was issued with the condition that the transport vehicle should be kept within the travel lanes and away from the shoulder whenever possible. FWD tests were conducted after the superheavy load move and comparisons with before superheavy load move were made. T-tests were performed to check for significant difference at the 95% confidence level. T-tests showed that there is no significant difference between before and after superheavy load move. Also, no significant distresses due to this superheavy load were observed after the move, and the pavement condition is consistent with the analysis performed to issue the permit.

This paper appears in Transportation Research Record No. 1540, Recent Research in Pavement Performance.

English

p. 83-90

1996

Transportation Research Record

0309059208

Figures (7) ; References (11) ; Tables (5)

Alternatives analysis; Backcalculation; Before and after studies; Computer programs; Defects; Deflection; Falling weight deflectometers; Forecasting; Layer coefficient (Pavements); Loads; Modulus; Pavement distress; Pavements; Permits; Structural analysis; T test

Layer moduli; Structural adequacy; Superheavy load

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

TRIS, TRB

Dec 24 1997 12:00AM

• APPLICATION OF ARTIFICIAL NEURAL NETWORKS TO CONCRETE PAVEMENT JOINT EVALUATION
• APPLICATION OF STOCHASTIC FINITE-ELEMENT METHOD TO DEFLECTION ANALYSIS OF PAVEMENT STRUCTURES
• ATTEMPT AT RESILIENT MODULUS MODELING USING ARTIFICIAL NEURAL NETWORKS
• COMPARISON OF SIMPLIFIED ELASTOSTATIC AND ELASTODYNAMIC MODELS FOR FALLING WEIGHT DEFLECTOMETER DATA INTERPRETATION
• DETERMINATION OF ELASTIC AND PLASTIC SUBGRADE SOIL PARAMETERS FOR ASPHALT CRACKING AND RUTTING PREDICTION
• ESTABLISHING THE CALIFORNIA DEPARTMENT OF TRANSPORTATION ACCELERATED PAVEMENT TESTING PROGRAM
• EXPERIMENTS WITH COLD MIXES ON LABORATOIRE CENTRAL DES PONTS ET CHAUSSEES FATIGUE TEST TRACK: BEHAVIOR UNDER TRAFFIC LOADS, MECHANICAL CHARACTERISTICS, AND MODELING
• FIELD VERIFICATION OF MOVING LOAD MODEL FOR PAVEMENT RESPONSE
• IMPACT OF HIGH-PRESSURE TIRES AND SINGLE-TIRED AXLES IN OREGON
• NORMAL STRESSES IN A GRANULAR MATERIAL UNDER FALLING WEIGHT DEFLECTOMETER LOADING
• PLASTICITY MODELING APPLIED TO THE PERMANENT DEFORMATION RESPONSE OF GRANULAR MATERIALS IN FLEXIBLE PAVEMENT SYSTEMS
• PREDICTION OF PAVEMENT FATIGUE FOR CALIFORNIA DEPARTMENT OF TRANSPORTATION ACCELERATED PAVEMENT TESTING PROGRAM DRAINED AND UNDRAINED TEST SECTIONS
• PROBABILISTIC FINITE-ELEMENT ANALYSIS OF AIRFIELD PAVEMENTS
• RATIONAL SELECTION OF FACTORS OF SAFETY IN RELIABILITY-BASED DESIGN OF FLEXIBLE PAVEMENTS IN SAUDI ARABIA
• REVISED PREDICTIVE MODEL FOR DYNAMIC (COMPLEX) MODULUS OF ASPHALT MIXTURES
• ROLLING WEIGHT DEFLECTOMETER WITH THERMAL AND VIBRATIONAL BENDING COMPENSATION
• STATISTICAL ANALYSES OF TEMPERATURE AND MOISTURE EFFECTS ON PAVEMENT STRUCTURAL PROPERTIES BASED ON SEASONAL MONITORING DATA