THERMAL STRESSES IN CONCRETE BRIDGE SUPERSTRUCTURES UNDER SUMMER CONDITIONS

Current design practice for deep concrete bridge superstructures generally ignores the influence of the diurnal heating cycle on the flexural response of members and instead, considers mean temperature effects. A 1-demensional heat-flow analysis is used to study the flexural deformations and stresses that are developed in deep concrete sections as a result of a typical summer heating cycle. Both nonlinear temperature and stress distributions are observed, and nonlinearity increases with member depth. An analysis of 2 typical continous concrete structures indicates stresses exceeding those associated with live load and amounting to 40 percent of the allowable area possible for concrete structures having a depth of more than 4 ft (1.22 m).

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/547/547-003.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=THERMAL+STRESSES+IN+CONCRETE+BRIDGE+SUPERSTRUCTURES+UNDER+SUMMER+CONDITIONS&author=M.+Radolli&author=R.+Green&publication_year=1975
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Concrete Bridges. 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.
• Authors:
  • Radolli, M
  • Green, R
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 23-36
• Monograph Title: Concrete and Steel Bridges
• Serial:
  • Transportation Research Record
  • Issue Number: 547
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridge superstructures; Concrete bridges; Deformation; Deformation curve; Heat flow; Nonlinear systems; Stresses; Summer; Temperature; Thermal stresses
• Uncontrolled Terms: Nonlinearity; Temperature distribution
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00128545
• Record Type: Publication
• ISBN: 0309024548
• Files: TRIS, TRB
• Created Date: May 14 1976 12:00AM