00730296

Component

https://doi.org/10.3141/1540-05

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

Mechanistic pavement analysis and design based on either layered elastic analysis (LEA) or the finite element method (FEM) is increasingly being used to replace the empirical design process. The simplifying assumptions of a uniform, homogeneous layer of linear material used in LEA can render its analysis inaccurate for real pavement structures. The FEM is more attractive for structural analysis of pavements; the generality of the FEM also allows both the use of comprehensive material models and modeling of the spatial variability that exists in pavement systems. To date, spatial variability and uncertainty are ignored in pavement system finite element analyses. Ignoring spatial variability and uncertainty implies a false sense of accuracy in the results and can lead to inaccurate assessment of the pavement. The first application of the probabilistic finite element method to pavement response analysis and life prediction and the first investigation of the effects of spatial variability on pavement life prediction are presented. It is concluded that the probabilistic FEM, with spatial variability, is a more accurate representation of the true physical condition and leads to results that are less conservative than those obtained with probabilistic LEA.

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

English

p. 29-38

1996

Transportation Research Record

0309059208

Figures (8) ; References (25) ; Tables (2)

Accuracy; Airport runways; Design; Finite element method; Forecasting; Mechanical analysis; Mechanistic design; Pavement design; Pavements; Probability; Service life

Probabilistic analysis; Spatial variability

Aviation; Data and Information Technology; Design; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways

TRIS, TRB

Dec 23 1997 12:00AM

• APPLICATION OF ARTIFICIAL NEURAL NETWORKS TO CONCRETE PAVEMENT JOINT EVALUATION
• APPLICATION OF FALLING WEIGHT DEFLECTOMETER DATA FOR ANALYSIS OF SUPERHEAVY LOADS
• 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
• 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