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Title:

STRUCTURAL SAFETY OF PRESTRESSED CONCRETE AND COMPOSITE STEEL HIGHWAY BRIDGES

Accession Number:

00711724

Record Type:

Component

Availability:

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

Abstract:

Traditionally, the safety evaluation of existing bridges and code calibration of newly developed structural design specifications for the ultimate limit states are usually based on the maximum factored design loads. The advantage of this approach is that it does not require detailed design computations. Past experience with prestressed concrete girder bridges indicates that the design of such bridges is governed by the allowable stresses requirement at release or under service load effects. Similarly, the design of composite steel beam bridges is generally controlled by overloading for compact sections and by the maximum stress criterion for noncompact sections. The reliability of bridges designed according to AASHTO's Load Factor Design code is evaluated on the basis of actual designs. Reliability is measured in terms of the reliability index for the ultimate flexural capacity limit state. The statistical data on strength are generated starting from statistics on material properties and using simulation methods. Statistical data on load components are compiled from the available literature. The scope of the study covers a wide range of precast sections and rolled beams, span lengths, and beam spacings.

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:

Tabsh, S W

Pagination:

p. 188-198

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 (10) ; Tables (3)

Uncontrolled Terms:

Composite bridges

Subject Areas:

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

Files:

TRIS, TRB

Created Date:

Sep 6 1995 12:00AM