PROBABILISTIC ASSESSMENT OF PRESTRESSED CONCRETE BRIDGE
The structure of an existing bridge cannot be assessed using the same nominal parameters and safety factors calibrated for the design of new bridges. The direct use of probabilistic methods allows a determination of the safety and serviceability of an existing structure. The uncertainties involved with load and resistance values in the assessment of concrete bridges are usually lower than in the design stage because the strength and load effects can be estimated accurately by using information from inspections, experimental tests, traffic measurements and other supplementary data. After that, a full probabilistic analysis is performed, as with design code calibration, but for each particular case of study. A practical example is presented, including the assessment of a prestressed concrete bridge, to illustrate the abilities of probabilistic methods to assess existing structures.
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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
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Corporate Authors:
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Washington, DC United States 20001 -
Authors:
- Sobrino, J A
- CASAS, J R
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Conference:
- Fourth International Bridge Engineering Conference
- Location: San Francisco, California
- Date: 1995-8-28 to 1995-8-30
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 110-116
- Monograph Title: FOURTH INTERNATIONAL BRIDGE ENGINEERING CONFERENCE, SAN FRANCISCO, CALIFORNIA, AUGUST 28-30, 1995. CONFERENCE PROCEEDINGS, 2 VOLUMES
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Serial:
- Transportation Research Board Conference Proceedings
- Issue Number: 7
- Publisher: Transportation Research Board
- ISSN: 1073-1652
Subject/Index Terms
- TRT Terms: Conferences; Prestressed concrete bridges; Probability; Safety
- Non-Preferred Terms: Serviceability
- Uncontrolled Terms: Probabilistic analysis
- Subject Areas: Bridges and other structures; Data and Information Technology; Design; Highways; Safety and Human Factors; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00711679
- Record Type: Publication
- ISBN: 0309061091
- Files: TRIS, TRB
- Created Date: Sep 5 1995 12:00AM