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Title: LONG-TERM SERVICEABILITY OF ISOTROPICALLY REINFORCED BRIDGE DECK SLABS
Accession Number: 00627138
Record Type: Component
Availability: Find a library where document is available Abstract: Isotropically reinforced bridge decks have the potential to reduce costs to bridge owners for both construction and maintenance. For long-term serviceability evaluation, 13 such decks in New York State, with reinforcement ratios of 0.36 and 0.24%, have been inspected annually for the past 5 years; 4 of them have been load tested annually since they were constructed, the longest life being 8 years. Generally they have performed satisfactorily. Maximal stresses of bottom transverse rebars under 16-kip wheel loads over the years have always been below allowable levels based on conservative analyses. Rebar stresses in both the isotropic and AASHTO decks in New York State increase with age for the first year or two and remain relatively constant thereafter. Comparison of top-surface transverse cracking between the New York isotropic decks and North Carolina AASHTO decks indicates that the various reinforcement arrangements result in similar cracking severity.
Supplemental Notes: This paper appears in Transportation Research Record No. 1371, Bridge, Culvert, and Tunnel Research. 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 Title: Monograph Accession #: 01405120
Language: English
Authors: Pagination: p. 26-36
Publication Date: 1992
Serial: ISBN: 0309054141
Features: Figures
(9)
; References
(27)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls
Files: TRIS, TRB
Created Date: Mar 24 1993 12:00AM
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0000-0002-3042-2752