Advanced Pavement Design: Finite Element Modeling for ...

DOT/FAA/AR-98/70

Air Traffic Organization Operations Planning Office of Aviation Research and Development Washington, DC 20591

Advanced Pavement Design: Finite Element Modeling for Rigid Pavement Joints, Report III: Model Simplification and Application

November 2007 Final Report

This document is available to the U.S. public through the National Technical Information Service (NTIS), Springfield, Virginia 22161.

U.S. Department of Transportation Federal Aviation Administration

NOTICE This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no liability for the contents or use thereof. The United States Government does not endorse products or manufacturers. Trade or manufacturer's names appear herein solely because they are considered essential to the objective of this report. This document does not constitute FAA certification policy. Consult your local FAA airports office as to its use.

This report is available at the Federal Aviation Administration William J. Hughes Technical Center's Full-Text Technical Reports page: actlibrary.tc. in Adobe Acrobat portable document format (PDF).

1. Report No.

2. Government Accession No.

DOT/FAA/AR-98/70

4. Title and Subtitle

ADVANCED PAVEMENT DESIGN: FINITE ELEMENT MODELING FOR RIGID PAVEMENT JOINTS, REPORT III: MODEL SIMPLIFICATION AND APPLICATION

Technical Report Documentation Page

3. Recipient's Catalog No.

5. Report Date

November 2007

6. Performing Organization Code

7. Author(s)

Dr. Michael I. Hammons and Dr. Reed B. Freeman

9. Performing Organization Name and Address

U.S. Army Engineer Waterways Experiment Station 3909 Halls Ferry Road Vicksburg, MS 39180-6199

8. Performing Organization Report No. 10. Work Unit No. (TRAIS)

11. Contract or Grant No.

DTFA03-94-X-00010

12. Sponsoring Agency Name and Address

13. Type of Report and Period Covered

U.S. Department of Transportation Federal Aviation Administration Air Traffic Organization Operations Planning Office of Aviation Research and Development Washington, DC 20591

Final Report

14. Sponsoring Agency Code

15. Supplementary Notes

AAS-200

The Federal Aviation Administration Airport and Aircraft Safety R&D Division COTR is Dr. Satish K. Agrawal.

16. Abstract

A rational, three-dimensional (3D) finite element technique was applied to model the structural response of the jointed concrete airport pavement system. Modeling features include explicit 3D modeling of the slab continua, load transfer capability at the joint, explicit 3D modeling of the base course continua, load transfer capability across the cracks in the base course, and contact interaction between the slabs and base course. The results of these models were simplified for incorporation into concrete pavement design applications. A set of joint response algorithms was developed that provides a complete system for relating commonly used deflection- and stress-based metrics of joint response to a dimensionless quantity that can be used to establish joint properties for finite element calculations. They may be readily implemented in personal computer spreadsheets or calculated by hand using an electronic calculator. Multivariate statistical analysis techniques were applied to increase understanding of the contribution of the input variables to variability of load transfer estimates and the sensitivity of the model to changes in input variables.

17. Key Words

18. Distribution Statement

Aggregate interlock, Contact, Dowels, Finite elements, Friction, This document is available to the U.S. public through the National

Joints, Rigid pavements, Stabilized bases

Technical Information Service (NTIS), Springfield, Virginia

22161.

19. Security Classif. (of this report)

20. Security Classif. (of this page)

21. No. of Pages

22. Price

Unclassified

Unclassified

31

Form DOT F 1700.7 (8-72)

Reproduction of completed page authorized

PREFACE This research reported was sponsored by the U.S. Department of Transportation, Federal Aviation Administration (FAA), Airport Technology Branch, under Interagency Agreement DTFA03-94-X00010 by the Airfields and Pavements Division (APD), Geotechnical Laboratory (GL), and U.S. Army Engineer Waterways Experiment Station (WES), Vicksburg, Mississippi. Dr. Xiaogong Lee, Airport Technology R&D Branch, FAA, was the technical monitor. Dr. Satish Agrawal is the manager of the Airport Technology R&D Branch, FAA. This study was conducted under the general supervision of Dr. W.F. Marcuson III, Director, GL and Dr. David W. Pittman, Chief, APD. This report was prepared under the direct supervision of Mr. T.W. Vollor, Chief, Materials Analysis Branch (MAB), APD. The project principal investigator was Dr. Michael I. Hammons, MAB. This report was written by Dr. Hammons and Dr. Reed B. Freeman, also of the MAB. The Director of WES during the preparation of this publication was Dr. Robert W. Whalin. The Acting Commander and Deputy Director was Dr. Edwin A. Theriot.

iii/iv

TABLE OF CONTENTS

Page

EXECUTIVE SUMMARY

ix

1. INTRODUCTION

1-1

1.1 Background

1-1

1.2 Objective

1-2

1.3 Scope

1-2

2. MODEL SIMPLIFICATION

2-1

2.1 Introduction

2-1

2.2 Joint Response Algorithms

2-2

2.3 Doweled-Joint Response

2-4

2.4 Implementation for Evaluation of Joints

2-8

2.5 Implementation for Design of Doweled Joints

2-9

2.6 Uses and Limitations

2-10

3. MULTIVARIATE ANALYSES

3-1

3.1 Introduction

3-1

3.2 Sensitivity of Model to Changes in Input Variables

3-1

4. CONCLUSIONS

4-1

5. BIBLIOGRAPHY

5-1

v

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