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Title:

DYNAMIC TESTING OF HIGHWAY BRIDGES--A REVIEW

Accession Number:

00494748

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309048206

Abstract:

A review is presented of the recent technical literature in the English language dealing with bridge dynamics in general and dynamic testing of highway bridges in particular. It is shown that several definitions have been used for the impact factor and thus the same set of field test data may lead to widely varying estimates of the impact factor. In nearly all the reviewed references, there is little or no justification for using a particular definition, suggesting that each of the various definitions was regarded as axiomatic, requiring no justification. It is also shown that there are additional factors that may be responsible for misleading conclusions from the test data; these factors include vehicle type, vehicle weight, transverse position of the vehicle with respect to the reference point, differences in dynamic increment of strains and deflections, presence of bearing restraint forces, and roughness of the riding surface. A preferred method of interpreting the field test data for obtaining a representative value of the impact factor is suggested. It is shown that the impact factor is not a tangible entity susceptible to deterministic validation.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1223, Bridge Design and Performance and Composite Materials. 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

Monograph Accession #:

01414062

Authors:

Bakht, B
Pinjarkar, S G

Pagination:

p. 93-100

Publication Date:

1989

Serial:

Transportation Research Record

Issue Number: 1223
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309048206

Features:

Figures (4) ; References (26) ; Tables (1)

Uncontrolled Terms:

Field data; Impact factor; Interpretation

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

Files:

TRIS, TRB

Created Date:

Jun 30 1990 12:00AM

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