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Title:

APPLICATION OF PRECAST, PRESTRESSED CONCRETE PILES IN INTEGRAL ABUTMENT BRIDGES

Accession Number:

00711720

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309061091

Abstract:

In jointless integral abutment bridge superstructures, thermally induced movements must be absorbed by the abutments, which in most cases are supported on piles. Most states in the United States use steel piles in their integral abutment bridges. Research was undertaken to compare the flexibility of steel and concrete piles to determine whether concrete piles may be used in integral abutment bridges and, if not, to modify the pile abutment joint detail currently used with steel piles for possible use with concrete piles. Load-deflection tests on one steel and two concrete piles were conducted to evaluate and compare their stiffnesses. The computer program LPILE was used to analyze both concrete and steel piles in various types of soil. The results of the analysis and tests showed that concrete piles have limited flexibility for lateral loads with current pile abutment details; therefore, they can be used only in short span integral abutment bridges. For concrete piles, a new pile abutment joint was investigated. The joint consists of a neoprene bearing pad with a Teflon layer. It allows for controlled movement or rotation of the pile relative to the abutment, or both. Laboratory tests were conducted to study the behavior of the proposed joint under axial and lateral loads. The test results showed that the proposed joint would allow the use of concrete piles in integral abutment bridges of lengths comparable to those with steel piles.

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

Monograph Accession #:

00711666

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Kamel, M R
Benak, J V
Tadros, M K
Jamshidi, M

Pagination:

p. 146-157

Publication Date:

1995

Serial:

Transportation Research Board Conference Proceedings

Issue Number: 7
Publisher: Transportation Research Board
ISSN: 1073-1652

Conference:

Fourth International Bridge Engineering Conference

Location: San Francisco, California
Date: 1995-8-28 to 1995-8-30
Sponsors: Transportation Research Board; Federal Highway Administration; Federal Railroad Administration; American Association of State Highway and Transportation Officials; and California Department of Transportation.

ISBN:

0309061091

Features:

Figures (10) ; References (15) ; Tables (2)

Uncontrolled Terms:

Joints; Lateral loads; Steel piling

Old TRIS Terms:

Subject Areas:

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

Files:

TRIS, TRB

Created Date:

Sep 6 1995 12:00AM