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Title:

REPAIR OF TORSIONALLY INADEQUATE CONCRETE BEAMS BY USE OF ADHESIVELY BONDED PLATES (ABRIDGMENT)

Accession Number:

00348708

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309032638

Abstract:

The results of a study conducted to determine the feasibility of repairing torsionally inadequate reinforced concrete beams by using externally bonded steel plates are presented. The test program consisted of three sets of beams. Set A consisted of beams that had failed under torsional loading. Set B consisted of the same beams that failed as set A but were repaired by using epoxy adhesive to bond plates to the sides of the beams in the exterior thirds of the beam span. For set C, the plates were bonded to the sides of the beams before any testing. In the repaired beams, the external plates not only restored the integrity of the failed members but also increased the load-carrying capacity by 20 percent. For equal loads, the repaired beams had deflections approximately 6 percent less than those of the original beams. Set C, the control set, had 20 percent more carrying capacity than the concrete beams and also had deflections 20 percent lower. However, the plate configuration used did not force the members to fail in flexural mode. The repair method was shown to be feasible, but more research is recommended to determine the best plate configuration and plate size. (Authors)

Supplemental Notes:

Publication of this paper sponsored by Committee on Adhesives, Bonding Agents, and Their Uses. 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 #:

01411629

Authors:

Toensmeyer, Michael R
Cook, John P

Pagination:

pp 79-81

Publication Date:

1981

Serial:

Transportation Research Record

Issue Number: 821
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

60th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1981-1-12 to 1981-1-16

ISBN:

0309032638

Media Type:

Print

Features:

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

Uncontrolled Terms:

Concrete beams; Plates; Repairs

Old TRIS Terms:

Subject Areas:

Highways; Maintenance and Preservation; Materials; I32: Concrete

Files:

TRIS, TRB

Created Date:

Jun 30 1982 12:00AM

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