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Title:

INSTRUMENTATION FOR MEASURING SCOUR AT BRIDGE PIERS AND ABUTMENTS

Accession Number:

00741926

Record Type:

Monograph

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309060699

Abstract:

This report documents and presents the results of research to develop, test, and evaluate instrumentation that would be both technically and economically feasible for use in measuring maximum scour depth at bridge piers and abutments. A variety of scour measuring and monitoring methods were tested in the laboratory and in the field, including sounding rods, driven rod devices, sonic fathometers, and buried devices. Two instrument systems, a low-cost bridge deck serviceable sonic fathometer and a magnetic sliding collar device using a driven rod approach, showed significant promise during initial testing. The project concentrated on installing and testing these two instrument systems under a wide range of bridge substructure geometry, flow, and geomorphic conditions. Both instrument systems met all of the mandatory and many of the desirable criteria established for this research. Cooperative efforts with state highway agencies proved that both systems can be installed with equipment and technical skills normally available to District level DOT maintenance and inspection personnel. This report provides, under separate cover, users and fabrication manuals giving design, fabrication, and installation specifications for the low-cost sonic instrument system and magnetic sliding collar devices (NCHRP Reports 397A and 397B).

Supplemental Notes:

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

Report/Paper Numbers:

Project 21-3 FY '90 & '92

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Ayres Associates

Fort Collins, CO United States

Authors:

Lagasse, P F
Richardson, E V
Schall, J D
Price, G R

Pagination:

116 p.

Publication Date:

1997

Serial:

NCHRP Report

Issue Number: 396
Publisher: Transportation Research Board
ISSN: 0077-5614

ISBN:

0309060699

Media Type:

Digital/other

Features:

Appendices (3) ; Figures; Photos; References; Tables (6)

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Construction; Design; Highways; Hydraulics and Hydrology; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I61: Equipment and Maintenance Methods

Files:

TRIS, TRB, ATRI

Created Date:

Oct 8 1997 12:00AM