DYNAMIC RESPONSE MEASUREMENTS AND IDENTIFICATION ANALYSIS OF A PAVEMENT DURING FALLING-WEIGHT DEFLECTOMETER EXPERIMENTS
Falling-weight deflectometer (FWD) experiments were conducted on an airport taxiway pavement using techniques of experimental dynamics to obtain compliance frequency response functions of the pavement, which are functions in the frequency domain that represent the pavement displacement response at a given location to the FWD load. The compliance functions reveal that at certain locations the pavement responded to the FWD load with a significant resonant amplification at approximately 30 Hz. To understand this response and to develop appropriate techniques for the backcalculation when dynamic behavior should not be ignored, the compliance data were used to backcalculate selected pavement properties using a minimization algorithm and a wave propagation model applicable to pavement systems. The backcalculations provide a credible explanation of the observed pavement behavior. They also demonstrate the utility of the minimization algorithm and wave propagation model to estimate pavement system properties using dynamic response data from FWD tests.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309055644
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1415, Field Performance of Structures and Nondestructive Evaluation of Subsurface Infrastructure. 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
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Authors:
- Ketcham, S A
- Publication Date: 1993
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 78-87
- Monograph Title: Field performance of structures and nondestructive evaluation of subsurface infrastructure
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Serial:
- Transportation Research Record
- Issue Number: 1415
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Algorithms; Backcalculation; Compliance; Dislocation (Geology); Dynamic loads; Falling weight deflectometers; Mathematical models; Measurement; Minimization; Pavements; Wave motion
- Uncontrolled Terms: Dynamic response
- Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00646036
- Record Type: Publication
- ISBN: 0309055644
- Files: TRIS, TRB, ATRI
- Created Date: Apr 7 1994 12:00AM