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Title:

EFFECTS OF DAMAGE AND REDUNDANCY ON THE SAFETY OF EXISTING BRIDGES

Accession Number:

00611115

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309050677

Abstract:

Many existing bridges are damaged. The older these bridges are, the higher their probability of being damaged. Yet, they continue to function and exhibit higher capacities than those associated with their designed vehicular loads. This may be the result of several factors, but the prevalent explanation among researchers today is that the existing bridges have a much greater amount of reserve strength than that anticipated by the original bridge designer. This indicates a need for determining an effective means for modeling and evaluating existing bridges, particularly for those exceeding their design life. The present study primarily reviews definitions of deterministic and probabilistic system redundancy measures which could be used in the design and evaluation of highway bridges. Some of these measures are used to evaluate the redundancy of an existing steel girder bridge. In this context, corrosion and accidental damages are simulated and the bridge redundancy is evaluated by using three-dimensional nonlinear finite element and probabilistic system analyses. The bridge damage - redundancy - reliability interaction is also studied.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1290, Third Bridge Engineering Conference, March 10-13, 1991, Denver, Colorado, Volume 1. 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 #:

01411114

Authors:

Frangopol, Dan M
Nakib, Rachid

Pagination:

p. 9-15

Publication Date:

1991

Serial:

Transportation Research Record

Issue Number: 1290
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

Bridge Engineering Conference, 3rd, 1991, Denver, Colorado, USA

Location: Denver Colorado, United States
Date: 1991-93-10 to 1991-3-13

ISBN:

0309050677

Features:

Figures (4) ; References (26) ; Tables (2)

Subject Areas:

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

Files:

TRIS, TRB

Created Date:

Jul 31 1991 12:00AM