01373732

Component

https://doi.org/10.3141/2305-17

http://scholar.google.com...nald&publication_year=2012

An approach to developing load and resistance factors and design parameter offsets for inputs to the "Mechanistic–Empirical Pavement Design Guide" (MEPDG) is provided for the purpose of ensuring, with a high level of probability, that the MEPDG-predicted distress at any level of reliability does not exceed a given threshold. In the proposed approach, the two most significant sources of uncertainty in pavement design—input variability and model prediction error—are handled separately. The proposed method involves four major steps: experimental design, surrogate model estimation, model verification, and calculation of load and resistance factors and design offsets with the inverse first-order reliability method. The proposed method allows pavement engineers to account for uncertainty in loading and resistance parameters in a similar manner to the load and resistance factor design provisions of the American Institute of Steel Construction’s "Steel Construction Manual" and the American Concrete Institute’s "ACI 318: Building Code Requirements for Structural Concrete." The proposed methods are illustrated for a typical flexible pavement.

01470561

12-4141

English

pp 162–169

2012

Transportation Research Record: Journal of the Transportation Research Board

9780309263139

Print

Figures; References; Tables

Flexible pavements; Load and resistance factor design; Pavement design; Uncertainty

Mechanistic-Empirical Pavement Design Guide

First order reliability method

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Feb 8 2012 5:22PM

• Calibrating "Mechanistic–Empirical Pavement Design Guide" for North Carolina: Genetic Algorithm and Generalized Reduced Gradient Optimization Methods
• Comparison of Design Thicknesses for Flexible Airfield Pavement Based on Agency Limiting Subgrade Strain Criteria
• Concrete Pavement Joint Diagnostics with Ultrasonic Tomography
• Development of Mechanistic–Empirical Design Procedure for Fully Permeable Pavement Under Heavy Traffic
• Establishing Effective Linear Temperature Gradients for Ultrathin Bonded Concrete Overlays on Asphalt Pavements
• Evaluating the Effect of Concrete Slab Curling on Joint Load Transfer Responses
• Evaluation of Representative Loading Frequency for Linear Elastic Analysis of Asphalt Pavements
• Improved Mechanistic–Empirical Continuously Reinforced Concrete Pavement Design Approach with Modified Punchout Model
• Induction Healing of Porous Asphalt
• Joint Load Transfer and Support Considerations for Jointed Precast Concrete Pavements
• Method for Evaluating Implications of Climate Change for Design and Performance of Flexible Pavements
• Modification of "Mechanistic–Empirical Pavement Design Guide" Procedure for Two-Lift Composite Concrete Pavements
• New Warping and Differential Drying Shrinkage Models for Jointed Plain Concrete Pavements Derived with Nonlinear Shrinkage Distribution
• Rational Use of Terminal Anchorages in Portland Cement Concrete Pavement
• Reliability-Based Mechanistic–Empirical Pavement Design with Statistical Methods
• Streamlining Use of "Mechanistic–Empirical Pavement Design Guide"
• Structural Coefficient of Open-Graded Friction Course